/* * 86Box A hypervisor and IBM PC system emulator that specializes in * running old operating systems and software designed for IBM * PC systems and compatibles from 1981 through fairly recent * system designs based on the PCI bus. * * This file is part of the 86Box distribution. * * Emulation of the 8514/A card from IBM for the MCA bus and * ISA bus clones. * * * * Authors: TheCollector1995. * * Copyright 2022-2023 TheCollector1995. */ #include #include #include #include #include #include #include #define HAVE_STDARG_H #include <86box/86box.h> #include <86box/device.h> #include <86box/io.h> #include <86box/machine.h> #include <86box/mem.h> #include <86box/timer.h> #include <86box/mca.h> #include <86box/rom.h> #include <86box/plat.h> #include <86box/thread.h> #include <86box/video.h> #include <86box/vid_8514a.h> #include <86box/vid_xga.h> #include <86box/vid_svga.h> #include <86box/vid_svga_render.h> #include "cpu.h" static void ibm8514_accel_outb(uint16_t port, uint8_t val, void *priv); static void ibm8514_accel_outw(uint16_t port, uint16_t val, void *priv); static uint8_t ibm8514_accel_inb(uint16_t port, void *priv); static uint16_t ibm8514_accel_inw(uint16_t port, void *priv); #ifdef ENABLE_IBM8514_LOG int ibm8514_do_log = ENABLE_IBM8514_LOG; static void ibm8514_log(const char *fmt, ...) { va_list ap; if (ibm8514_do_log) { va_start(ap, fmt); pclog_ex(fmt, ap); va_end(ap); } } #else # define ibm8514_log(fmt, ...) #endif #define READ_PIXTRANS_WORD(cx, n) \ if ((cmd <= 1) || (cmd == 5)) { \ temp = dev->vram[((dev->accel.cy * dev->pitch) + (cx) + (n)) & dev->vram_mask]; \ temp |= (dev->vram[((dev->accel.cy * dev->pitch) + (cx) + (n + 1)) & dev->vram_mask] << 8); \ } else { \ temp = dev->vram[(dev->accel.dest + (cx) + (n)) & dev->vram_mask]; \ temp |= (dev->vram[(dev->accel.dest + (cx) + (n + 1)) & dev->vram_mask] << 8); \ } #define READ(addr, dat) \ if (dev->bpp) { \ dat = vram_w[(addr) & (dev->vram_mask >> 1)]; \ } else { \ dat = (dev->vram[(addr) & (dev->vram_mask)]); \ } #define MIX(mixmode, dest_dat, src_dat) \ { \ switch ((mixmode) ? (dev->accel.frgd_mix & 0x1f) : (dev->accel.bkgd_mix & 0x1f)) { \ case 0x00: \ dest_dat = ~dest_dat; \ break; \ case 0x01: \ dest_dat = 0; \ break; \ case 0x02: \ dest_dat = ~0; \ break; \ case 0x03: \ dest_dat = dest_dat; \ break; \ case 0x04: \ dest_dat = ~src_dat; \ break; \ case 0x05: \ dest_dat = src_dat ^ dest_dat; \ break; \ case 0x06: \ dest_dat = ~(src_dat ^ dest_dat); \ break; \ case 0x07: \ dest_dat = src_dat; \ break; \ case 0x08: \ dest_dat = ~(src_dat & dest_dat); \ break; \ case 0x09: \ dest_dat = ~src_dat | dest_dat; \ break; \ case 0x0a: \ dest_dat = src_dat | ~dest_dat; \ break; \ case 0x0b: \ dest_dat = src_dat | dest_dat; \ break; \ case 0x0c: \ dest_dat = src_dat & dest_dat; \ break; \ case 0x0d: \ dest_dat = src_dat & ~dest_dat; \ break; \ case 0x0e: \ dest_dat = ~src_dat & dest_dat; \ break; \ case 0x0f: \ dest_dat = ~(src_dat | dest_dat); \ break; \ case 0x10: \ dest_dat = MIN(src_dat, dest_dat); \ break; \ case 0x11: \ dest_dat = dest_dat - src_dat; \ break; \ case 0x12: \ dest_dat = src_dat - dest_dat; \ break; \ case 0x13: \ dest_dat = src_dat + dest_dat; \ break; \ case 0x14: \ dest_dat = MAX(src_dat, dest_dat); \ break; \ case 0x15: \ dest_dat = (dest_dat - src_dat) >> 1; \ break; \ case 0x16: \ dest_dat = (src_dat - dest_dat) >> 1; \ break; \ case 0x17: \ dest_dat = (dest_dat + src_dat) >> 1; \ break; \ case 0x18: \ dest_dat = MAX(0, (dest_dat - src_dat)); \ break; \ case 0x19: \ dest_dat = MAX(0, (dest_dat - src_dat)); \ break; \ case 0x1a: \ dest_dat = MAX(0, (src_dat - dest_dat)); \ break; \ case 0x1b: \ dest_dat = MIN(~0, (dest_dat + src_dat)); \ break; \ case 0x1c: \ dest_dat = MAX(0, (dest_dat - src_dat)) / 2; \ break; \ case 0x1d: \ dest_dat = MAX(0, (dest_dat - src_dat)) / 2; \ break; \ case 0x1e: \ dest_dat = MAX(0, (src_dat - dest_dat)) / 2; \ break; \ case 0x1f: \ dest_dat = (~0 < (src_dat + dest_dat)) ? ~0 : ((src_dat + dest_dat) >> 1); \ break; \ } \ } #define WRITE(addr, dat) \ if (dev->bpp) { \ vram_w[((addr)) & (dev->vram_mask >> 1)] = dat; \ dev->changedvram[(((addr)) & (dev->vram_mask >> 1)) >> 11] = changeframecount; \ } else { \ dev->vram[((addr)) & (dev->vram_mask)] = dat; \ dev->changedvram[(((addr)) & (dev->vram_mask)) >> 12] = changeframecount; \ } int ibm8514_active = 0; int ibm8514_cpu_src(svga_t *svga) { const ibm8514_t *dev = (ibm8514_t *) svga->dev8514; if (!(dev->accel.cmd & 0x100)) return 0; if (dev->accel.cmd & 1) return 1; return 0; } int ibm8514_cpu_dest(svga_t *svga) { const ibm8514_t *dev = (ibm8514_t *) svga->dev8514; if (!(dev->accel.cmd & 0x100)) return 0; if (dev->accel.cmd & 1) return 0; return 1; } void ibm8514_accel_out_pixtrans(svga_t *svga, UNUSED(uint16_t port), uint16_t val, int len) { ibm8514_t *dev = (ibm8514_t *) svga->dev8514; uint8_t nibble = 0; uint32_t pixelxfer = 0; uint32_t monoxfer = 0xffffffff; int pixcnt = 0; int pixcntl = (dev->accel.multifunc[0x0a] >> 6) & 3; int frgd_mix = (dev->accel.frgd_mix >> 5) & 3; int bkgd_mix = (dev->accel.bkgd_mix >> 5) & 3; int cmd = dev->accel.cmd >> 13; int and3 = dev->accel.cur_x & 3; if (dev->accel.cmd & 0x100) { if (len != 1) { /*Bus size*/ if (dev->accel.cmd & 0x200) /*16-bit*/ pixcnt = 16; else /*8-bit*/ pixcnt = 8; /*Pixel transfer data mode, can't be the same as Foreground/Background CPU data*/ if (pixcntl == 2) { if ((frgd_mix == 2) || (bkgd_mix == 2)) { pixelxfer = val; } else { if (dev->accel.cmd & 2) { if (pixcnt == 16) { if ((cmd >= 2) && (dev->accel.cmd & 0x1000)) val = (val >> 8) | (val << 8); } if (and3 == 3) { if (dev->accel.cmd & 0x1000) goto regular_nibble; if (val & 0x02) nibble |= 0x10; if (val & 0x04) nibble |= 0x08; if (val & 0x08) nibble |= 0x04; if (val & 0x10) nibble |= 0x02; if (val & 0x200) nibble |= 0x01; if (val & 0x400) nibble |= 0x80; if (val & 0x800) nibble |= 0x40; if (val & 0x1000) nibble |= 0x20; } else if (and3 == 2) { if (dev->accel.cmd & 0x1000) goto regular_nibble; if (val & 0x02) nibble |= 0x20; if (val & 0x04) nibble |= 0x10; if (val & 0x08) nibble |= 0x08; if (val & 0x10) nibble |= 0x04; if (val & 0x200) nibble |= 0x02; if (val & 0x400) nibble |= 0x01; if (val & 0x800) nibble |= 0x80; if (val & 0x1000) nibble |= 0x40; } else if (and3 == 1) { if (dev->accel.cmd & 0x1000) goto regular_nibble; if (val & 0x02) nibble |= 0x40; if (val & 0x04) nibble |= 0x20; if (val & 0x08) nibble |= 0x10; if (val & 0x10) nibble |= 0x08; if (val & 0x200) nibble |= 0x04; if (val & 0x400) nibble |= 0x02; if (val & 0x800) nibble |= 0x01; if (val & 0x1000) nibble |= 0x80; } else { regular_nibble: if (val & 0x02) nibble |= 0x80; if (val & 0x04) nibble |= 0x40; if (val & 0x08) nibble |= 0x20; if (val & 0x10) nibble |= 0x10; if (val & 0x200) nibble |= 0x08; if (val & 0x400) nibble |= 0x04; if (val & 0x800) nibble |= 0x02; if (val & 0x1000) nibble |= 0x01; } if ((and3 == 0) || (dev->accel.cmd & 0x1000) || ((dev->accel.cmd & 8) && ibm8514_cpu_src(svga))) { if ((dev->accel.cmd & 8) && ibm8514_cpu_src(svga)) { monoxfer = val; } else monoxfer = nibble; ibm8514_accel_start(pixcnt, 1, monoxfer, pixelxfer, svga, len); if (dev->accel.nibbleset != NULL) { free(dev->accel.nibbleset); dev->accel.nibbleset = NULL; } if (dev->accel.writemono != NULL) { free(dev->accel.writemono); dev->accel.writemono = NULL; } return; } dev->accel.writemono[dev->accel.x_count] = nibble; if (val & 0x1c00) { if (and3 == 1) { if (val & 0x1000) dev->accel.nibbleset[dev->accel.x_count] = 0x80; else dev->accel.nibbleset[dev->accel.x_count] = 0; } else if (and3 == 2) { if (val & 0x1000) { if (val & 0x800) dev->accel.nibbleset[dev->accel.x_count] = 0xc0; else dev->accel.nibbleset[dev->accel.x_count] = 0x40; } else if (val & 0x800) { if (val & 0x1000) dev->accel.nibbleset[dev->accel.x_count] = 0xc0; else dev->accel.nibbleset[dev->accel.x_count] = 0x80; } else dev->accel.nibbleset[dev->accel.x_count] = 0; } else if (and3 == 3) { if (val & 0x1000) { if (val & 0x800) { if (val & 0x400) dev->accel.nibbleset[dev->accel.x_count] = 0xe0; else dev->accel.nibbleset[dev->accel.x_count] = 0x60; } else if (val & 0x400) { if (val & 0x800) dev->accel.nibbleset[dev->accel.x_count] = 0xe0; else dev->accel.nibbleset[dev->accel.x_count] = 0xa0; } else dev->accel.nibbleset[dev->accel.x_count] = 0x20; } else if (val & 0x800) { if (val & 0x400) { if (val & 0x1000) dev->accel.nibbleset[dev->accel.x_count] = 0xe0; else dev->accel.nibbleset[dev->accel.x_count] = 0xc0; } else if (val & 0x1000) { if (val & 0x400) dev->accel.nibbleset[dev->accel.x_count] = 0xe0; else dev->accel.nibbleset[dev->accel.x_count] = 0x60; } else dev->accel.nibbleset[dev->accel.x_count] = 0x40; } else if (val & 0x400) { if (val & 0x800) { if (val & 0x1000) dev->accel.nibbleset[dev->accel.x_count] = 0xe0; else dev->accel.nibbleset[dev->accel.x_count] = 0xc0; } else if (val & 0x1000) { if (val & 0x800) dev->accel.nibbleset[dev->accel.x_count] = 0xe0; else dev->accel.nibbleset[dev->accel.x_count] = 0xa0; } else dev->accel.nibbleset[dev->accel.x_count] = 0x80; } else dev->accel.nibbleset[dev->accel.x_count] = 0; } } else dev->accel.nibbleset[dev->accel.x_count] = 0; dev->accel.x_count++; if (dev->accel.x_count == dev->accel.sys_cnt) { for (int i = 0; i < dev->accel.x_count; i++) { dev->accel.writemono[i] &= ~dev->accel.nibbleset[i]; dev->accel.writemono[i] |= dev->accel.nibbleset[i + 1]; ibm8514_accel_start(pixcnt, 1, dev->accel.writemono[i], pixelxfer, svga, len); } dev->accel.x_count = 0; if (dev->accel.nibbleset != NULL) { free(dev->accel.nibbleset); dev->accel.nibbleset = NULL; } if (dev->accel.writemono != NULL) { free(dev->accel.writemono); dev->accel.writemono = NULL; } } return; } monoxfer = val; } } else { pixelxfer = val; } ibm8514_accel_start(pixcnt, 1, monoxfer, pixelxfer, svga, len); } } } static void ibm8514_accel_out_fifo(svga_t *svga, uint16_t port, uint32_t val, int len) { ibm8514_t *dev = (ibm8514_t *) svga->dev8514; switch (port) { case 0x82e8: case 0xc2e8: if (len == 1) { dev->accel.cur_y = (dev->accel.cur_y & 0x700) | val; } else { dev->accel.cur_y = val & 0x7ff; } break; case 0x82e9: case 0xc2e9: if (len == 1) { dev->accel.cur_y = (dev->accel.cur_y & 0xff) | ((val & 0x07) << 8); } break; case 0x86e8: case 0xc6e8: if (len == 1) { dev->accel.cur_x = (dev->accel.cur_x & 0x700) | val; } else { dev->accel.cur_x = val & 0x7ff; } break; case 0x86e9: case 0xc6e9: if (len == 1) { dev->accel.cur_x = (dev->accel.cur_x & 0xff) | ((val & 0x07) << 8); } break; case 0x8ae8: case 0xcae8: if (len == 1) dev->accel.desty_axstp = (dev->accel.desty_axstp & 0x3f00) | val; else { dev->accel.desty_axstp = val & 0x3fff; if (val & 0x2000) dev->accel.desty_axstp |= ~0x1fff; } break; case 0x8ae9: case 0xcae9: if (len == 1) { dev->accel.desty_axstp = (dev->accel.desty_axstp & 0xff) | ((val & 0x3f) << 8); if (val & 0x20) dev->accel.desty_axstp |= ~0x1fff; } break; case 0x8ee8: case 0xcee8: if (len == 1) dev->accel.destx_distp = (dev->accel.destx_distp & 0x3f00) | val; else { dev->accel.destx_distp = val & 0x3fff; if (val & 0x2000) dev->accel.destx_distp |= ~0x1fff; } break; case 0x8ee9: case 0xcee9: if (len == 1) { dev->accel.destx_distp = (dev->accel.destx_distp & 0xff) | ((val & 0x3f) << 8); if (val & 0x20) dev->accel.destx_distp |= ~0x1fff; } break; case 0x92e8: if (len != 1) dev->test = val; fallthrough; case 0xd2e8: if (len == 1) dev->accel.err_term = (dev->accel.err_term & 0x3f00) | val; else { dev->accel.err_term = val & 0x3fff; if (val & 0x2000) dev->accel.err_term |= ~0x1fff; } break; case 0x92e9: case 0xd2e9: if (len == 1) { dev->accel.err_term = (dev->accel.err_term & 0xff) | ((val & 0x3f) << 8); if (val & 0x20) dev->accel.err_term |= ~0x1fff; } break; case 0x96e8: case 0xd6e8: if (len == 1) dev->accel.maj_axis_pcnt = (dev->accel.maj_axis_pcnt & 0x700) | val; else { dev->accel.maj_axis_pcnt = val & 0x7ff; } break; case 0x96e9: case 0xd6e9: if (len == 1) { dev->accel.maj_axis_pcnt = (dev->accel.maj_axis_pcnt & 0xff) | ((val & 0x07) << 8); } break; case 0x9ae8: case 0xdae8: dev->accel.ssv_state = 0; if (len == 1) dev->accel.cmd = (dev->accel.cmd & 0xff00) | val; else { dev->data_available = 0; dev->data_available2 = 0; dev->accel.cmd = val; if (port == 0xdae8) { if (dev->accel.cmd & 0x100) dev->accel.cmd_back = 0; } ibm8514_accel_start(-1, 0, -1, 0, svga, len); } break; case 0x9ae9: case 0xdae9: if (len == 1) { dev->data_available = 0; dev->data_available2 = 0; dev->accel.cmd = (dev->accel.cmd & 0xff) | (val << 8); if (port == 0xdae9) { if (dev->accel.cmd & 0x100) dev->accel.cmd_back = 0; } ibm8514_accel_start(-1, 0, -1, 0, svga, len); } break; case 0x9ee8: case 0xdee8: dev->accel.ssv_state = 1; if (len == 1) dev->accel.short_stroke = (dev->accel.short_stroke & 0xff00) | val; else { dev->accel.short_stroke = val; dev->accel.cx = dev->accel.cur_x; dev->accel.cy = dev->accel.cur_y; if (dev->accel.cur_x >= 0x600) dev->accel.cx |= ~0x5ff; if (dev->accel.cur_y >= 0x600) dev->accel.cy |= ~0x5ff; if (dev->accel.cmd & 0x1000) { ibm8514_short_stroke_start(-1, 0, -1, 0, svga, dev->accel.short_stroke & 0xff, len); ibm8514_short_stroke_start(-1, 0, -1, 0, svga, dev->accel.short_stroke >> 8, len); } else { ibm8514_short_stroke_start(-1, 0, -1, 0, svga, dev->accel.short_stroke >> 8, len); ibm8514_short_stroke_start(-1, 0, -1, 0, svga, dev->accel.short_stroke & 0xff, len); } } break; case 0x9ee9: case 0xdee9: dev->accel.ssv_state = 1; if (len == 1) { dev->accel.short_stroke = (dev->accel.short_stroke & 0xff) | (val << 8); dev->accel.cx = dev->accel.cur_x; dev->accel.cy = dev->accel.cur_y; if (dev->accel.cur_x >= 0x600) dev->accel.cx |= ~0x5ff; if (dev->accel.cur_y >= 0x600) dev->accel.cy |= ~0x5ff; if (dev->accel.cmd & 0x1000) { ibm8514_short_stroke_start(-1, 0, -1, 0, svga, dev->accel.short_stroke & 0xff, len); ibm8514_short_stroke_start(-1, 0, -1, 0, svga, dev->accel.short_stroke >> 8, len); } else { ibm8514_short_stroke_start(-1, 0, -1, 0, svga, dev->accel.short_stroke >> 8, len); ibm8514_short_stroke_start(-1, 0, -1, 0, svga, dev->accel.short_stroke & 0xff, len); } } break; case 0xa2e8: case 0xe2e8: if (port == 0xe2e8) { if (dev->accel.cmd_back) { if (len == 1) dev->accel.bkgd_color = (dev->accel.bkgd_color & 0x00ff) | val; else dev->accel.bkgd_color = val; } else { if (ibm8514_cpu_dest(svga)) break; ibm8514_accel_out_pixtrans(svga, port, val, len); } } else { if (len == 1) dev->accel.bkgd_color = (dev->accel.bkgd_color & 0x00ff) | val; else dev->accel.bkgd_color = val; } break; case 0xa2e9: case 0xe2e9: if (len == 1) dev->accel.bkgd_color = (dev->accel.bkgd_color & 0xff00) | (val << 8); break; case 0xa6e8: case 0xe6e8: if (port == 0xe6e8) { if (dev->accel.cmd_back) { if (len == 1) dev->accel.frgd_color = (dev->accel.frgd_color & 0x00ff) | val; else dev->accel.frgd_color = val; } else { if (ibm8514_cpu_dest(svga)) break; ibm8514_accel_out_pixtrans(svga, port, val, len); } } else { if (len == 1) dev->accel.frgd_color = (dev->accel.frgd_color & 0x00ff) | val; else dev->accel.frgd_color = val; } break; case 0xa6e9: case 0xe6e9: if (len == 1) dev->accel.frgd_color = (dev->accel.frgd_color & 0xff00) | (val << 8); break; case 0xaae8: case 0xeae8: if (len == 1) dev->accel.wrt_mask = (dev->accel.wrt_mask & 0x00ff) | val; else dev->accel.wrt_mask = val; break; case 0xaae9: case 0xeae9: if (len == 1) dev->accel.wrt_mask = (dev->accel.wrt_mask & 0xff00) | (val << 8); break; case 0xaee8: case 0xeee8: if (len == 1) dev->accel.rd_mask = (dev->accel.rd_mask & 0x00ff) | val; else dev->accel.rd_mask = val; break; case 0xaee9: case 0xeee9: if (len == 1) dev->accel.rd_mask = (dev->accel.rd_mask & 0xff00) | (val << 8); break; case 0xb2e8: case 0xf2e8: if (len == 1) dev->accel.color_cmp = (dev->accel.color_cmp & 0x00ff) | val; else dev->accel.color_cmp = val; break; case 0xb2e9: case 0xf2e9: if (len == 1) dev->accel.color_cmp = (dev->accel.color_cmp & 0xff00) | (val << 8); break; case 0xb6e8: case 0xf6e8: dev->accel.bkgd_mix = val & 0xff; break; case 0xbae8: case 0xfae8: dev->accel.frgd_mix = val & 0xff; break; case 0xbee8: case 0xfee8: if (len == 1) dev->accel.multifunc_cntl = (dev->accel.multifunc_cntl & 0xff00) | val; else { dev->accel.multifunc_cntl = val; dev->accel.multifunc[dev->accel.multifunc_cntl >> 12] = dev->accel.multifunc_cntl & 0xfff; if ((dev->accel.multifunc_cntl >> 12) == 1) { dev->accel.clip_top = val & 0x7ff; if (val & 0x400) dev->accel.clip_top |= ~0x3ff; } if ((dev->accel.multifunc_cntl >> 12) == 2) { dev->accel.clip_left = val & 0x7ff; if (val & 0x400) dev->accel.clip_left |= ~0x3ff; } if (port == 0xfee8) dev->accel.cmd_back = 1; else dev->accel.cmd_back = 0; } break; case 0xbee9: case 0xfee9: if (len == 1) { dev->accel.multifunc_cntl = (dev->accel.multifunc_cntl & 0xff) | (val << 8); dev->accel.multifunc[dev->accel.multifunc_cntl >> 12] = dev->accel.multifunc_cntl & 0xfff; if (port == 0xfee9) dev->accel.cmd_back = 1; else dev->accel.cmd_back = 0; } break; default: break; } } void ibm8514_ramdac_out(uint16_t port, uint8_t val, void *priv) { svga_t *svga = (svga_t *) priv; svga_out(port, val, svga); } uint8_t ibm8514_ramdac_in(uint16_t port, void *priv) { svga_t *svga = (svga_t *) priv; uint8_t ret; ret = svga_in(port, svga); return ret; } static void ibm8514_io_set(svga_t *svga) { io_sethandler(0x2e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x2ea, 0x0004, ibm8514_ramdac_in, NULL, NULL, ibm8514_ramdac_out, NULL, NULL, svga); io_sethandler(0x6e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xae8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xee8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x12e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x16e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x1ae8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x1ee8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x22e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x26e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x2ee8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x42e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x4ae8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x52e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x56e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x5ae8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x5ee8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x82e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x86e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x8ae8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x8ee8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x92e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x96e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x9ae8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0x9ee8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xa2e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xa6e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xaae8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xaee8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xb2e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xb6e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xbae8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xbee8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xe2e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xc2e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xc6e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xcae8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xcee8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xd2e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xd6e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xdae8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xdee8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xe6e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xeae8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xeee8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xf2e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xf6e8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xfae8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); io_sethandler(0xfee8, 0x0002, ibm8514_accel_inb, ibm8514_accel_inw, NULL, ibm8514_accel_outb, ibm8514_accel_outw, NULL, svga); } static void ibm8514_accel_out(uint16_t port, uint32_t val, svga_t *svga, int len) { ibm8514_t *dev = (ibm8514_t *) svga->dev8514; if (port & 0x8000) { ibm8514_accel_out_fifo(svga, port, val, len); } else { switch (port) { case 0x2e8: if (len == 1) dev->htotal = (dev->htotal & 0xff00) | val; else { dev->htotal = val; svga_recalctimings(svga); } break; case 0x2e9: if (len != 1) { dev->htotal = (dev->htotal & 0xff) | (val << 8); ibm8514_log("IBM 8514/A: H_TOTAL write 02E8 = %d\n", dev->htotal + 1); svga_recalctimings(svga); } break; case 0x6e8: dev->hdisp = val; ibm8514_log("IBM 8514/A: H_DISP write 06E8 = %d\n", dev->hdisp + 1); svga_recalctimings(svga); break; case 0xae8: ibm8514_log("IBM 8514/A: H_SYNC_STRT write 0AE8 = %d\n", val + 1); svga_recalctimings(svga); break; case 0xee8: ibm8514_log("IBM 8514/A: H_SYNC_WID write 0EE8 = %d\n", val + 1); svga_recalctimings(svga); break; case 0x12e8: if (len == 1) dev->vtotal = (dev->vtotal & 0x1f00) | val; else { dev->vtotal = val & 0x1fff; svga_recalctimings(svga); } break; case 0x12e9: if (len == 1) { dev->vtotal = (dev->vtotal & 0xff) | ((val & 0x1f) << 8); ibm8514_log("IBM 8514/A: V_TOTAL write 12E8 = %d\n", dev->vtotal); svga_recalctimings(svga); } break; case 0x16e8: if (len == 1) dev->vdisp = (dev->vdisp & 0x1f00) | val; else { dev->vdisp = val & 0x1fff; svga_recalctimings(svga); } break; case 0x16e9: if (len == 1) { dev->vdisp = (dev->vdisp & 0xff) | ((val & 0x1f) << 8); ibm8514_log("IBM 8514/A: V_DISP write 16E8 = %d\n", dev->vdisp); svga_recalctimings(svga); } break; case 0x1ae8: if (len == 1) dev->vsyncstart = (dev->vsyncstart & 0x1f00) | val; else { dev->vsyncstart = val & 0x1fff; svga_recalctimings(svga); } break; case 0x1ae9: if (len == 1) { dev->vsyncstart = (dev->vsyncstart & 0xff) | ((val & 0x1f) << 8); ibm8514_log("IBM 8514/A: V_SYNC_STRT write 1AE8 = %d\n", dev->vsyncstart); svga_recalctimings(svga); } break; case 0x1ee8: dev->vsyncwidth = val; ibm8514_log("IBM 8514/A: V_SYNC_WID write 1EE8 = %02x\n", val); svga_recalctimings(svga); break; case 0x22e8: dev->disp_cntl = val & 0x7e; dev->interlace = !!(val & 0x10); ibm8514_log("IBM 8514/A: DISP_CNTL write 22E8 = %02x, SCANMODULOS = %d\n", dev->disp_cntl, dev->scanmodulos); svga_recalctimings(svga); break; case 0x42e8: if (len == 1) { dev->subsys_stat &= ~val; } else { dev->subsys_stat &= ~(val & 0xff); dev->subsys_cntl = (val >> 8); } break; case 0x42e9: if (len == 1) { dev->subsys_cntl = val; } break; case 0x4ae8: if (!val) break; dev->accel.advfunc_cntl = val & 0x0f; dev->on[0] = val & 0x01; vga_on = !dev->on[0]; ibm8514_log("IBM 8514/A: VGA ON = %i, val = %02x\n", vga_on, val); svga_recalctimings(svga); break; default: break; } } } static void ibm8514_accel_outb(uint16_t port, uint8_t val, void *priv) { svga_t *svga = (svga_t *) priv; ibm8514_accel_out(port, val, svga, 1); } static void ibm8514_accel_outw(uint16_t port, uint16_t val, void *priv) { svga_t *svga = (svga_t *) priv; ibm8514_accel_out(port, val, svga, 2); } static uint32_t ibm8514_accel_in(uint16_t port, svga_t *svga, int len) { ibm8514_t *dev = (ibm8514_t *) svga->dev8514; uint32_t temp = 0; int cmd; int vpos = 0; int vblankend = svga->vblankstart + svga->crtc[0x16]; switch (port) { case 0x2e8: vpos = dev->vc & 0x7ff; if (vblankend > dev->v_total) { vblankend -= dev->v_total; if (vpos >= svga->vblankstart || vpos <= vblankend) temp |= 2; } else { if (vpos >= svga->vblankstart && vpos <= vblankend) temp |= 2; } break; case 0x6e8: temp = dev->hdisp; break; case 0x22e8: temp = dev->disp_cntl; break; case 0x26e8: if (len == 1) temp = dev->htotal & 0xff; else temp = dev->htotal; break; case 0x26e9: if (len == 1) temp = dev->htotal >> 8; break; case 0x2ee8: temp = dev->subsys_cntl; break; case 0x42e8: vpos = dev->vc & 0x7ff; if (vblankend > dev->v_total) { vblankend -= dev->v_total; if (vpos >= svga->vblankstart || vpos <= vblankend) dev->subsys_stat |= 1; } else { if (vpos >= svga->vblankstart && vpos <= vblankend) dev->subsys_stat |= 1; } if (len != 1) { temp = dev->subsys_stat | 0xa0 | 0x8000; } else temp = dev->subsys_stat | 0xa0; break; case 0x42e9: if (len == 1) temp |= 0x80; break; case 0x92e8: if (len != 1) { temp = dev->test; } break; case 0x9ae8: case 0xdae8: if (len != 1) { if (dev->force_busy) temp |= 0x200; /*Hardware busy*/ dev->force_busy = 0; if (dev->data_available) { temp |= 0x100; /*Read Data available*/ dev->data_available = 0; } } break; case 0x9ae9: case 0xdae9: if (len == 1) { if (dev->force_busy2) temp |= 2; /*Hardware busy*/ dev->force_busy2 = 0; if (dev->data_available2) { temp |= 1; /*Read Data available*/ dev->data_available2 = 0; } } break; case 0xe2e8: case 0xe6e8: if (ibm8514_cpu_dest(svga)) { if (len == 1) { ; // READ_PIXTRANS_BYTE_IO(0) } else { cmd = (dev->accel.cmd >> 13); READ_PIXTRANS_WORD(dev->accel.cx, 0) if (dev->accel.input && !dev->accel.odd_in && !dev->accel.sx) { temp &= ~0xff00; temp |= (dev->vram[(dev->accel.newdest_in + dev->accel.cur_x) & dev->vram_mask] << 8); } } ibm8514_accel_out_pixtrans(svga, port, temp, len); } break; case 0xe2e9: case 0xe6e9: if (ibm8514_cpu_dest(svga)) { if (len == 1) { ; // READ_PIXTRANS_BYTE_IO(1) ibm8514_accel_out_pixtrans(svga, port, temp, len); } } break; default: break; } return temp; } static uint8_t ibm8514_accel_inb(uint16_t port, void *priv) { svga_t *svga = (svga_t *) priv; return ibm8514_accel_in(port, svga, 1); } static uint16_t ibm8514_accel_inw(uint16_t port, void *priv) { svga_t *svga = (svga_t *) priv; return ibm8514_accel_in(port, svga, 2); } void ibm8514_short_stroke_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat, svga_t *svga, uint8_t ssv, int len) { ibm8514_t *dev = (ibm8514_t *) svga->dev8514; if (!cpu_input) { dev->accel.ssv_len = ssv & 0x0f; dev->accel.ssv_dir = ssv & 0xe0; dev->accel.ssv_draw = ssv & 0x10; if (ibm8514_cpu_src(svga)) { return; /*Wait for data from CPU*/ } } ibm8514_accel_start(count, cpu_input, mix_dat, cpu_dat, svga, len); } void ibm8514_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat, svga_t *svga, UNUSED(int len)) { ibm8514_t *dev = (ibm8514_t *) svga->dev8514; uint16_t *vram_w = (uint16_t *) dev->vram; uint16_t src_dat = 0; uint16_t dest_dat; uint16_t old_dest_dat; int frgd_mix; int bkgd_mix; uint16_t clip_b = dev->accel.multifunc[3]; uint16_t clip_r = dev->accel.multifunc[4]; int pixcntl = (dev->accel.multifunc[0x0a] >> 6) & 3; uint16_t mix_mask = dev->bpp ? 0x8000 : 0x80; uint16_t compare = dev->accel.color_cmp; int compare_mode = dev->accel.multifunc[0x0a] & 0x38; int cmd = dev->accel.cmd >> 13; uint16_t wrt_mask = dev->accel.wrt_mask; uint16_t rd_mask = dev->accel.rd_mask; uint16_t rd_mask_polygon = dev->accel.rd_mask; uint16_t frgd_color = dev->accel.frgd_color; uint16_t bkgd_color = dev->accel.bkgd_color; uint32_t old_mix_dat; int and3 = dev->accel.cur_x & 3; uint16_t poly_src = 0; if (!dev->bpp) { compare &= 0xff; frgd_color &= 0xff; bkgd_color &= 0xff; rd_mask = ((dev->accel.rd_mask & 0x01) << 7) | ((dev->accel.rd_mask & 0xfe) >> 1); rd_mask &= 0xff; rd_mask_polygon &= 0xff; } if (dev->accel.cmd & 0x100) { dev->force_busy = 1; dev->force_busy2 = 1; } frgd_mix = (dev->accel.frgd_mix >> 5) & 3; bkgd_mix = (dev->accel.bkgd_mix >> 5) & 3; if (cpu_input) { if ((dev->accel.cmd & 2) || (pixcntl == 2)) { if ((frgd_mix == 2) || (bkgd_mix == 2)) count >>= 3; else if (pixcntl == 2) { if (dev->accel.cmd & 2) count >>= 1; else count >>= 3; } } else count >>= 3; if (dev->bpp) { if ((dev->accel.cmd & 0x200) && (count == 2)) count >>= 1; } } if (pixcntl == 1) { mix_dat = 0; if (and3 == 3) { if (dev->accel.multifunc[8] & 0x02) mix_dat |= 0x08; if (dev->accel.multifunc[8] & 0x04) mix_dat |= 0x10; if (dev->accel.multifunc[8] & 0x08) mix_dat |= 0x20; if (dev->accel.multifunc[8] & 0x10) mix_dat |= 0x40; if (dev->accel.multifunc[9] & 0x02) mix_dat |= 0x80; if (dev->accel.multifunc[9] & 0x04) mix_dat |= 0x01; if (dev->accel.multifunc[9] & 0x08) mix_dat |= 0x02; if (dev->accel.multifunc[9] & 0x10) mix_dat |= 0x04; } if (and3 == 2) { if (dev->accel.multifunc[8] & 0x02) mix_dat |= 0x04; if (dev->accel.multifunc[8] & 0x04) mix_dat |= 0x08; if (dev->accel.multifunc[8] & 0x08) mix_dat |= 0x10; if (dev->accel.multifunc[8] & 0x10) mix_dat |= 0x20; if (dev->accel.multifunc[9] & 0x02) mix_dat |= 0x40; if (dev->accel.multifunc[9] & 0x04) mix_dat |= 0x80; if (dev->accel.multifunc[9] & 0x08) mix_dat |= 0x01; if (dev->accel.multifunc[9] & 0x10) mix_dat |= 0x02; } if (and3 == 1) { if (dev->accel.multifunc[8] & 0x02) mix_dat |= 0x02; if (dev->accel.multifunc[8] & 0x04) mix_dat |= 0x04; if (dev->accel.multifunc[8] & 0x08) mix_dat |= 0x08; if (dev->accel.multifunc[8] & 0x10) mix_dat |= 0x10; if (dev->accel.multifunc[9] & 0x02) mix_dat |= 0x20; if (dev->accel.multifunc[9] & 0x04) mix_dat |= 0x40; if (dev->accel.multifunc[9] & 0x08) mix_dat |= 0x80; if (dev->accel.multifunc[9] & 0x10) mix_dat |= 0x01; } if (and3 == 0) { if (dev->accel.multifunc[8] & 0x02) mix_dat |= 0x01; if (dev->accel.multifunc[8] & 0x04) mix_dat |= 0x02; if (dev->accel.multifunc[8] & 0x08) mix_dat |= 0x04; if (dev->accel.multifunc[8] & 0x10) mix_dat |= 0x08; if (dev->accel.multifunc[9] & 0x02) mix_dat |= 0x10; if (dev->accel.multifunc[9] & 0x04) mix_dat |= 0x20; if (dev->accel.multifunc[9] & 0x08) mix_dat |= 0x40; if (dev->accel.multifunc[9] & 0x10) mix_dat |= 0x80; } } old_mix_dat = mix_dat; /*Bit 4 of the Command register is the draw yes bit, which enables writing to memory/reading from memory when enabled. When this bit is disabled, no writing to memory/reading from memory is allowed. (This bit is almost meaningless on the NOP command)*/ if (dev->accel.cmd == 0x53b1 && !cpu_dat) ibm8514_log("CMD8514: CMD=%d, full=%04x, pixcntl=%x, count=%d, frgdmix = %02x, bkgdmix = %02x, polygon=%x, cpu=%08x, frgdmix=%02x, bkgdmix=%02x.\n", cmd, dev->accel.cmd, pixcntl, count, frgd_mix, bkgd_mix, dev->accel.multifunc[0x0a] & 6, cpu_dat, dev->accel.frgd_mix, dev->accel.bkgd_mix); switch (cmd) { case 0: /*NOP (Short Stroke Vectors)*/ if (dev->accel.ssv_state == 0) break; if (dev->accel.cmd & 8) { while (count-- && dev->accel.ssv_len >= 0) { if (dev->accel.cx >= dev->accel.clip_left && dev->accel.cx <= clip_r && dev->accel.cy >= dev->accel.clip_top && dev->accel.cy <= clip_b) { switch ((mix_dat & mix_mask) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = cpu_dat; break; case 3: src_dat = 0; break; default: break; } READ((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & mix_mask, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); if (dev->accel.ssv_draw) { if ((dev->accel.cmd & 4) && dev->accel.ssv_len) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } } } } mix_dat <<= 1; mix_dat |= 1; if (dev->bpp) cpu_dat >>= 16; else cpu_dat >>= 8; if (!dev->accel.ssv_len) break; switch (dev->accel.ssv_dir & 0xe0) { case 0x00: dev->accel.cx++; break; case 0x20: dev->accel.cx++; dev->accel.cy--; break; case 0x40: dev->accel.cy--; break; case 0x60: dev->accel.cx--; dev->accel.cy--; break; case 0x80: dev->accel.cx--; break; case 0xa0: dev->accel.cx--; dev->accel.cy++; break; case 0xc0: dev->accel.cy++; break; case 0xe0: dev->accel.cx++; dev->accel.cy++; break; default: break; } dev->accel.ssv_len--; } } else { while (count-- && (dev->accel.ssv_len >= 0)) { if ((dev->accel.cx >= dev->accel.clip_left) && (dev->accel.cx <= clip_r) && (dev->accel.cy >= dev->accel.clip_top) && (dev->accel.cy <= clip_b)) { switch ((mix_dat & mix_mask) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = cpu_dat; break; case 3: src_dat = 0; break; default: break; } READ((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & mix_mask, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); if (dev->accel.ssv_draw) { if ((dev->accel.cmd & 4) && dev->accel.ssv_len) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } } } } mix_dat <<= 1; mix_dat |= 1; if (dev->bpp) cpu_dat >>= 16; else cpu_dat >>= 8; if (!dev->accel.ssv_len) break; if (dev->accel.err_term >= dev->accel.maj_axis_pcnt) { dev->accel.err_term += dev->accel.destx_distp; /*Step minor axis*/ switch (dev->accel.cmd & 0xe0) { case 0x00: dev->accel.cy--; break; case 0x20: dev->accel.cy--; break; case 0x40: dev->accel.cx--; break; case 0x60: dev->accel.cx++; break; case 0x80: dev->accel.cy++; break; case 0xa0: dev->accel.cy++; break; case 0xc0: dev->accel.cx--; break; case 0xe0: dev->accel.cx++; break; default: break; } } else dev->accel.err_term += dev->accel.desty_axstp; /*Step major axis*/ switch (dev->accel.cmd & 0xe0) { case 0x00: dev->accel.cx--; break; case 0x20: dev->accel.cx++; break; case 0x40: dev->accel.cy--; break; case 0x60: dev->accel.cy--; break; case 0x80: dev->accel.cx--; break; case 0xa0: dev->accel.cx++; break; case 0xc0: dev->accel.cy++; break; case 0xe0: dev->accel.cy++; break; default: break; } dev->accel.ssv_len--; } } dev->accel.cur_x = dev->accel.cx; dev->accel.cur_y = dev->accel.cy; break; case 1: /*Draw line*/ if (!cpu_input) { dev->accel.xx_count = 0; dev->accel.cx = dev->accel.cur_x; dev->accel.cy = dev->accel.cur_y; if (dev->accel.cur_x >= 0x600) { dev->accel.cx |= ~0x5ff; } if (dev->accel.cur_y >= 0x600) { dev->accel.cy |= ~0x5ff; } dev->accel.sy = dev->accel.maj_axis_pcnt; if (ibm8514_cpu_src(svga)) { if (dev->accel.cmd & 2) { if (dev->accel.cmd & 8) { if (and3 == 1) { dev->accel.sy += 4; if (dev->accel.cmd & 0x20) dev->accel.cx += 4; else dev->accel.cx -= 4; } else if (and3 == 2) { dev->accel.sy += 5; if (dev->accel.cmd & 0x20) dev->accel.cx += 5; else dev->accel.cx -= 5; } else if (and3 == 3) { dev->accel.sy += 6; if (dev->accel.cmd & 0x20) dev->accel.cx += 6; else dev->accel.cx -= 6; } else { dev->accel.sy += 3; if (dev->accel.cmd & 0x20) dev->accel.cx += 3; else dev->accel.cx -= 3; } } } dev->data_available = 0; dev->data_available2 = 0; return; /*Wait for data from CPU*/ } else if (ibm8514_cpu_dest(svga)) { dev->data_available = 1; dev->data_available2 = 1; return; } } if (dev->accel.cmd & 8) { /*Vector Line*/ if (ibm8514_cpu_dest(svga) && cpu_input && (dev->accel.cmd & 2)) count >>= 1; dev->accel.xx_count++; while (count-- && (dev->accel.sy >= 0)) { if (dev->accel.cx >= dev->accel.clip_left && dev->accel.cx <= clip_r && dev->accel.cy >= dev->accel.clip_top && dev->accel.cy <= clip_b) { if (ibm8514_cpu_dest(svga) && (pixcntl == 0)) { mix_dat = mix_mask; /* Mix data = forced to foreground register. */ } else if (ibm8514_cpu_dest(svga) && (pixcntl == 3)) { /* Mix data = current video memory value. */ READ((dev->accel.cy * dev->pitch) + dev->accel.cx, mix_dat); mix_dat = ((mix_dat & rd_mask) == rd_mask); mix_dat = mix_dat ? mix_mask : 0; } if (ibm8514_cpu_dest(svga)) { READ((dev->accel.cy * dev->pitch) + dev->accel.cx, src_dat); if (pixcntl == 3) src_dat = ((src_dat & rd_mask) == rd_mask); } else switch ((mix_dat & mix_mask) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = cpu_dat; break; case 3: src_dat = 0; break; default: break; } READ((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & mix_mask, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); if ((dev->accel.cmd & 2) && ibm8514_cpu_src(svga)) { if (and3 == 1) { if (dev->accel.xx_count >= 2) { if ((dev->accel.cmd & 4) && dev->accel.sy) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } } } else if (and3 == 2) { if (dev->accel.xx_count == 2) { if (count <= 2) { if ((dev->accel.cmd & 4) && dev->accel.sy) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } } } else if (dev->accel.xx_count >= 3) { if ((dev->accel.cmd & 4) && dev->accel.sy) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } } } else if (and3 == 3) { if (dev->accel.xx_count == 2) { if (count <= 1) { if ((dev->accel.cmd & 4) && dev->accel.sy) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } } } else if (dev->accel.xx_count >= 3) { if ((dev->accel.cmd & 4) && dev->accel.sy) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } } } else { if (dev->accel.xx_count == 1) { if (!count) { if ((dev->accel.cmd & 4) && dev->accel.sy) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } } } else if (dev->accel.xx_count >= 2) { if ((dev->accel.cmd & 4) && dev->accel.sy) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } } } } else { if (ibm8514_cpu_src(svga) || !cpu_input) { if ((dev->accel.cmd & 4) && dev->accel.sy) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } } } } } mix_dat <<= 1; mix_dat |= 1; if (dev->bpp) cpu_dat >>= 16; else cpu_dat >>= 8; if (dev->accel.sy == 0) { break; } switch (dev->accel.cmd & 0xe0) { case 0x00: dev->accel.cx++; break; case 0x20: dev->accel.cx++; dev->accel.cy--; break; case 0x40: dev->accel.cy--; break; case 0x60: dev->accel.cx--; dev->accel.cy--; break; case 0x80: dev->accel.cx--; break; case 0xa0: dev->accel.cx--; dev->accel.cy++; break; case 0xc0: dev->accel.cy++; break; case 0xe0: dev->accel.cx++; dev->accel.cy++; break; default: break; } dev->accel.sy--; } dev->accel.cur_x = dev->accel.cx; dev->accel.cur_y = dev->accel.cy; } else { /*Bresenham*/ if (pixcntl == 1) { dev->accel.temp_cnt = 8; while (count-- && (dev->accel.sy >= 0)) { if (dev->accel.temp_cnt == 0) { dev->accel.temp_cnt = 8; mix_dat = old_mix_dat; } if (dev->accel.cx >= dev->accel.clip_left && dev->accel.cx <= clip_r && dev->accel.cy >= dev->accel.clip_top && dev->accel.cy <= clip_b) { if (ibm8514_cpu_dest(svga)) { READ((dev->accel.cy * dev->pitch) + dev->accel.cx, src_dat); } else switch ((mix_dat & 1) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = cpu_dat; break; case 3: src_dat = 0; break; default: break; } READ((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & 1, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); if ((dev->accel.cmd & 4) && dev->accel.sy) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } } } dev->accel.temp_cnt--; mix_dat >>= 1; if (dev->bpp) cpu_dat >>= 16; else cpu_dat >>= 8; if (dev->accel.sy == 0) { break; } if (dev->accel.err_term >= dev->accel.maj_axis_pcnt) { dev->accel.err_term += dev->accel.destx_distp; /*Step minor axis*/ switch (dev->accel.cmd & 0xe0) { case 0x00: dev->accel.cy--; break; case 0x20: dev->accel.cy--; break; case 0x40: dev->accel.cx--; break; case 0x60: dev->accel.cx++; break; case 0x80: dev->accel.cy++; break; case 0xa0: dev->accel.cy++; break; case 0xc0: dev->accel.cx--; break; case 0xe0: dev->accel.cx++; break; default: break; } } else dev->accel.err_term += dev->accel.desty_axstp; /*Step major axis*/ switch (dev->accel.cmd & 0xe0) { case 0x00: dev->accel.cx--; break; case 0x20: dev->accel.cx++; break; case 0x40: dev->accel.cy--; break; case 0x60: dev->accel.cy--; break; case 0x80: dev->accel.cx--; break; case 0xa0: dev->accel.cx++; break; case 0xc0: dev->accel.cy++; break; case 0xe0: dev->accel.cy++; break; default: break; } dev->accel.sy--; } } else { while (count-- && (dev->accel.sy >= 0)) { if ((dev->accel.cx) >= dev->accel.clip_left && (dev->accel.cx) <= clip_r && (dev->accel.cy) >= dev->accel.clip_top && (dev->accel.cy) <= clip_b) { if (ibm8514_cpu_dest(svga) && (pixcntl == 0)) { mix_dat = mix_mask; /* Mix data = forced to foreground register. */ } else if (ibm8514_cpu_dest(svga) && (pixcntl == 3)) { /* Mix data = current video memory value. */ READ((dev->accel.cy * dev->pitch) + dev->accel.cx, mix_dat); mix_dat = ((mix_dat & rd_mask) == rd_mask); mix_dat = mix_dat ? mix_mask : 0; } if (ibm8514_cpu_dest(svga)) { READ((dev->accel.cy * dev->pitch) + dev->accel.cx, src_dat); if (pixcntl == 3) src_dat = ((src_dat & rd_mask) == rd_mask); } else switch ((mix_dat & mix_mask) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = cpu_dat; break; case 3: src_dat = 0; break; default: break; } READ((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & mix_mask, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); if ((dev->accel.cmd & 4) && dev->accel.sy) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); } } } mix_dat <<= 1; mix_dat |= 1; if (dev->bpp) cpu_dat >>= 16; else cpu_dat >>= 8; if (dev->accel.sy == 0) { break; } if (dev->accel.err_term >= dev->accel.maj_axis_pcnt) { dev->accel.err_term += dev->accel.destx_distp; /*Step minor axis*/ switch (dev->accel.cmd & 0xe0) { case 0x00: dev->accel.cy--; break; case 0x20: dev->accel.cy--; break; case 0x40: dev->accel.cx--; break; case 0x60: dev->accel.cx++; break; case 0x80: dev->accel.cy++; break; case 0xa0: dev->accel.cy++; break; case 0xc0: dev->accel.cx--; break; case 0xe0: dev->accel.cx++; break; default: break; } } else dev->accel.err_term += dev->accel.desty_axstp; /*Step major axis*/ switch (dev->accel.cmd & 0xe0) { case 0x00: dev->accel.cx--; break; case 0x20: dev->accel.cx++; break; case 0x40: dev->accel.cy--; break; case 0x60: dev->accel.cy--; break; case 0x80: dev->accel.cx--; break; case 0xa0: dev->accel.cx++; break; case 0xc0: dev->accel.cy++; break; case 0xe0: dev->accel.cy++; break; default: break; } dev->accel.sy--; } } dev->accel.cur_x = dev->accel.cx; dev->accel.cur_y = dev->accel.cy; } break; case 2: /*Rectangle fill (X direction)*/ case 3: /*Rectangle fill (Y direction)*/ case 4: /*Rectangle fill (Y direction using nibbles)*/ if (!cpu_input) { dev->accel.x_count = 0; dev->accel.xx_count = 0; dev->accel.odd_out = 0; dev->accel.odd_in = 0; dev->accel.input = 0; dev->accel.output = 0; dev->accel.newdest_out = 0; dev->accel.newdest_in = 0; dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; dev->accel.sy = dev->accel.multifunc[0] & 0x7ff; dev->accel.cx = dev->accel.cur_x; if (dev->accel.cur_x >= 0x600) dev->accel.cx |= ~0x5ff; dev->accel.cy = dev->accel.cur_y; if (dev->accel.cur_y >= 0x600) dev->accel.cy |= ~0x5ff; if (((dev->local & 0xff) >= 0x02) && dev->accel.ge_offset && (dev->accel_bpp == 24)) dev->accel.dest = (dev->accel.ge_offset << 2) + (dev->accel.cy * dev->pitch); else dev->accel.dest = dev->accel.cy * dev->pitch; dev->accel.fill_state = 0; if (cmd == 4) dev->accel.cmd |= 2; else if (cmd == 3) dev->accel.cmd &= ~2; if (ibm8514_cpu_src(svga)) { if (dev->accel.cmd & 2) { if (!(dev->accel.cmd & 0x1000)) { if (!(dev->accel.cmd & 8)) { dev->accel.sx += and3; dev->accel.nibbleset = (uint8_t *) calloc(1, (dev->accel.sx >> 3) + 1); dev->accel.writemono = (uint8_t *) calloc(1, (dev->accel.sx >> 3) + 1); dev->accel.sys_cnt = (dev->accel.sx >> 3) + 1; } else { if (and3 == 1) { dev->accel.sx += 4; if (dev->accel.cmd & 0x20) dev->accel.cx += 4; else dev->accel.cx -= 4; } else if (and3 == 2) { dev->accel.sx += 5; if (dev->accel.cmd & 0x20) dev->accel.cx += 5; else dev->accel.cx -= 5; } else if (and3 == 3) { dev->accel.sx += 6; if (dev->accel.cmd & 0x20) dev->accel.cx += 6; else dev->accel.cx -= 6; } else { dev->accel.sx += 3; if (dev->accel.cmd & 0x20) dev->accel.cx += 3; else dev->accel.cx -= 3; } } } } else { if (!(dev->accel.cmd & 0x40) && (frgd_mix == 2) && (bkgd_mix == 2) && (pixcntl == 0) && (cmd == 2)) { if (!(dev->accel.sx & 1)) { dev->accel.output = 1; if (((dev->local & 0xff) >= 0x02) && dev->accel.ge_offset && (dev->accel_bpp == 24)) dev->accel.newdest_out = (dev->accel.ge_offset << 2) + ((dev->accel.cy + 1) * dev->pitch); else dev->accel.newdest_out = (dev->accel.cy + 1) * dev->pitch; } } } dev->data_available = 0; dev->data_available2 = 0; return; /*Wait for data from CPU*/ } else if (ibm8514_cpu_dest(svga)) { if (!(dev->accel.cmd & 2) && (frgd_mix == 2) && (pixcntl == 0) && (cmd == 2)) { if (!(dev->accel.sx & 1)) { dev->accel.input = 1; if (((dev->local & 0xff) >= 0x02) && dev->accel.ge_offset && (dev->accel_bpp == 24)) dev->accel.newdest_in = (dev->accel.ge_offset << 2) + ((dev->accel.cy + 1) * dev->pitch); else dev->accel.newdest_in = (dev->accel.cy + 1) * dev->pitch; } } else if (dev->accel.cmd & 2) { if (dev->accel.cmd & 8) { dev->accel.sx += and3; dev->accel.nibbleset = (uint8_t *) calloc(1, (dev->accel.sx >> 3) + 1); dev->accel.writemono = (uint8_t *) calloc(1, (dev->accel.sx >> 3) + 1); dev->accel.sys_cnt = (dev->accel.sx >> 3) + 1; } } dev->data_available = 1; dev->data_available2 = 1; return; /*Wait for data from CPU*/ } } if (dev->accel.cmd & 2) { if (cpu_input) { rect_fill_pix: if ((dev->accel.cmd & 8) && ibm8514_cpu_src(svga)) { dev->accel.xx_count++; while (count-- && (dev->accel.sy >= 0)) { if (dev->accel.cx >= dev->accel.clip_left && dev->accel.cx <= clip_r && dev->accel.cy >= dev->accel.clip_top && dev->accel.cy <= clip_b) { switch ((mix_dat & mix_mask) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = cpu_dat; break; case 3: src_dat = 0; break; default: break; } READ(dev->accel.dest + dev->accel.cx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & mix_mask, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); if (and3 == 1) { if (dev->accel.xx_count >= 2) { if ((dev->accel.cmd & 4) && dev->accel.sx) { WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } } } else if (and3 == 2) { if (dev->accel.xx_count == 2) { if (count <= 2) { if ((dev->accel.cmd & 4) && dev->accel.sx) { WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } } } else if (dev->accel.xx_count >= 3) { if ((dev->accel.cmd & 4) && dev->accel.sx) { WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } } } else if (and3 == 3) { if (dev->accel.xx_count == 2) { if (count <= 1) { if ((dev->accel.cmd & 4) && dev->accel.sx) { WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } } } else if (dev->accel.xx_count >= 3) { if ((dev->accel.cmd & 4) && dev->accel.sx) { WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } } } else { if (dev->accel.xx_count == 1) { if (!count) { if ((dev->accel.cmd & 4) && dev->accel.sx) { WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } } } else if (dev->accel.xx_count >= 2) { if ((dev->accel.cmd & 4) && dev->accel.sx) { WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } else if (!(dev->accel.cmd & 4)) { WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } } } } } mix_dat <<= 1; mix_dat |= 1; if (dev->bpp) cpu_dat >>= 16; else cpu_dat >>= 8; switch (dev->accel.cmd & 0xe0) { case 0x00: dev->accel.cx++; break; case 0x20: dev->accel.cx++; break; case 0x60: dev->accel.cx--; break; case 0x80: dev->accel.cx--; break; case 0xa0: dev->accel.cx--; break; case 0xe0: dev->accel.cx++; break; default: break; } dev->accel.sx--; if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; if (and3 == 1) { dev->accel.sx += 4; } else if (and3 == 2) { dev->accel.sx += 5; } else if (and3 == 3) { dev->accel.sx += 6; } else { dev->accel.sx += 3; } if (dev->accel.cmd & 0x20) dev->accel.cx -= (dev->accel.sx + 1); else dev->accel.cx += (dev->accel.sx + 1); switch (dev->accel.cmd & 0xe0) { case 0x20: dev->accel.cy--; break; case 0x40: dev->accel.cy--; break; case 0x60: dev->accel.cy--; break; case 0xa0: dev->accel.cy++; break; case 0xc0: dev->accel.cy++; break; case 0xe0: dev->accel.cy++; break; default: break; } if (((dev->local & 0xff) >= 0x02) && dev->accel.ge_offset && (dev->accel_bpp == 24)) dev->accel.dest = (dev->accel.ge_offset << 2) + (dev->accel.cy * dev->pitch); else dev->accel.dest = dev->accel.cy * dev->pitch; dev->accel.sy--; return; } } break; } if (count < 8) { while (count-- && (dev->accel.sy >= 0)) { if (dev->accel.cx >= dev->accel.clip_left && dev->accel.cx <= clip_r && dev->accel.cy >= dev->accel.clip_top && dev->accel.cy <= clip_b) { if (ibm8514_cpu_dest(svga) && (pixcntl == 0)) { mix_dat = mix_mask; /* Mix data = forced to foreground register. */ } else if (ibm8514_cpu_dest(svga) && (pixcntl == 3)) { /* Mix data = current video memory value. */ READ(dev->accel.dest + dev->accel.cx, mix_dat); mix_dat = ((mix_dat & rd_mask) == rd_mask); mix_dat = mix_dat ? mix_mask : 0; } if (ibm8514_cpu_dest(svga)) { READ(dev->accel.dest + dev->accel.cx, src_dat); if (pixcntl == 3) src_dat = ((src_dat & rd_mask) == rd_mask); } else switch ((mix_dat & mix_mask) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = cpu_dat; break; case 3: src_dat = 0; break; default: break; } READ(dev->accel.dest + dev->accel.cx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & mix_mask, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } } mix_dat <<= 1; mix_dat |= 1; if (dev->bpp) cpu_dat >>= 16; else cpu_dat >>= 8; if (dev->accel.cmd & 0x20) dev->accel.cx++; else dev->accel.cx--; dev->accel.sx--; if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; if (dev->accel.cmd & 2) { dev->accel.sx += (dev->accel.cur_x & 3); } if (dev->accel.cmd & 0x20) { dev->accel.cx -= (dev->accel.sx) + 1; } else dev->accel.cx += (dev->accel.sx) + 1; if (dev->accel.cmd & 0x80) dev->accel.cy++; else dev->accel.cy--; if (((dev->local & 0xff) >= 0x02) && dev->accel.ge_offset && (dev->accel_bpp == 24)) dev->accel.dest = (dev->accel.ge_offset << 2) + (dev->accel.cy * dev->pitch); else dev->accel.dest = dev->accel.cy * dev->pitch; dev->accel.sy--; return; } } } else { while (count-- && (dev->accel.sy >= 0)) { if (dev->accel.cx >= dev->accel.clip_left && dev->accel.cx <= clip_r && dev->accel.cy >= dev->accel.clip_top && dev->accel.cy <= clip_b) { if (ibm8514_cpu_dest(svga) && (pixcntl == 0)) { mix_dat = 1; /* Mix data = forced to foreground register. */ } else if (ibm8514_cpu_dest(svga) && (pixcntl == 3)) { /* Mix data = current video memory value. */ READ(dev->accel.dest + dev->accel.cx, mix_dat); mix_dat = ((mix_dat & rd_mask) == rd_mask); mix_dat = mix_dat ? 1 : 0; } if (ibm8514_cpu_dest(svga)) { READ(dev->accel.dest + dev->accel.cx, src_dat); if (pixcntl == 3) src_dat = ((src_dat & rd_mask) == rd_mask); } else { switch ((mix_dat & 1) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = cpu_dat; break; case 3: src_dat = 0; break; default: break; } } READ(dev->accel.dest + dev->accel.cx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & 1, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } } mix_dat >>= 1; if (dev->bpp) cpu_dat >>= 16; else cpu_dat >>= 8; if (dev->accel.cmd & 0x20) dev->accel.cx++; else dev->accel.cx--; dev->accel.sx--; if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; if (dev->accel.cmd & 2) { if (!(dev->accel.cmd & 0x1000)) dev->accel.sx += (dev->accel.cur_x & 3); } if (dev->accel.cmd & 0x20) { dev->accel.cx -= (dev->accel.sx) + 1; } else dev->accel.cx += (dev->accel.sx) + 1; if (dev->accel.cmd & 2) { if (dev->accel.cmd & 0x1000) { dev->accel.cx = dev->accel.cur_x; if (dev->accel.cur_x >= 0x600) dev->accel.cx |= ~0x5ff; } } if (dev->accel.cmd & 0x80) dev->accel.cy++; else dev->accel.cy--; if (((dev->local & 0xff) >= 0x02) && dev->accel.ge_offset && (dev->accel_bpp == 24)) dev->accel.dest = (dev->accel.ge_offset << 2) + (dev->accel.cy * dev->pitch); else dev->accel.dest = dev->accel.cy * dev->pitch; dev->accel.sy--; return; } } } } else { goto rect_fill; } } else { if (cpu_input) { if (pixcntl == 2) { goto rect_fill_pix; } else { if (dev->accel.input && !dev->accel.output) { while (count-- && (dev->accel.sy >= 0)) { if (dev->accel.cx >= dev->accel.clip_left && dev->accel.cx <= clip_r && dev->accel.cy >= dev->accel.clip_top && dev->accel.cy <= clip_b) { mix_dat = mix_mask; /* Mix data = forced to foreground register. */ if (!dev->accel.odd_in && !dev->accel.sx) { READ(dev->accel.newdest_in + dev->accel.cur_x, src_dat); READ(dev->accel.newdest_in + dev->accel.cur_x, dest_dat); } else { READ(dev->accel.dest + dev->accel.cx, src_dat); READ(dev->accel.dest + dev->accel.cx, dest_dat); } if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & mix_mask, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); if (!dev->accel.odd_in && !dev->accel.sx) { WRITE(dev->accel.newdest_in + dev->accel.cur_x, dest_dat); } else { WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } } } mix_dat <<= 1; mix_dat |= 1; if (dev->accel.cmd & 0x20) dev->accel.cx++; else dev->accel.cx--; dev->accel.sx--; if (dev->accel.odd_in) { if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; dev->accel.odd_in = 0; dev->accel.cx = dev->accel.cur_x; if (dev->accel.cmd & 0x80) dev->accel.cy++; else dev->accel.cy--; if (((dev->local & 0xff) >= 0x02) && dev->accel.ge_offset && (dev->accel_bpp == 24)) { dev->accel.dest = (dev->accel.ge_offset << 2) + (dev->accel.cy * dev->pitch); dev->accel.newdest_in = (dev->accel.ge_offset << 2) + ((dev->accel.cy + 1) * dev->pitch); } else { dev->accel.dest = dev->accel.cy * dev->pitch; dev->accel.newdest_in = (dev->accel.cy + 1) * dev->pitch; } dev->accel.sy--; return; } } else { if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; dev->accel.sx--; dev->accel.cx = dev->accel.cur_x; dev->accel.odd_in = 1; if (dev->accel.cmd & 0x20) dev->accel.cx++; else dev->accel.cx--; if (dev->accel.cmd & 0x80) dev->accel.cy++; else dev->accel.cy--; if (((dev->local & 0xff) >= 0x02) && dev->accel.ge_offset && (dev->accel_bpp == 24)) { dev->accel.dest = (dev->accel.ge_offset << 2) + (dev->accel.cy * dev->pitch); dev->accel.newdest_in = (dev->accel.ge_offset << 2) + ((dev->accel.cy + 1) * dev->pitch); } else { dev->accel.dest = dev->accel.cy * dev->pitch; dev->accel.newdest_in = (dev->accel.cy + 1) * dev->pitch; } dev->accel.sy--; return; } } } } else if (dev->accel.output && !dev->accel.input) { while (count-- && (dev->accel.sy >= 0)) { if (dev->accel.cx >= dev->accel.clip_left && dev->accel.cx <= clip_r && dev->accel.cy >= dev->accel.clip_top && dev->accel.cy <= clip_b) { src_dat = cpu_dat; if (!dev->accel.odd_out && !dev->accel.sx) { READ(dev->accel.newdest_out + dev->accel.cur_x, dest_dat); } else { READ(dev->accel.dest + dev->accel.cx, dest_dat); } if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & mix_mask, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); if (!dev->accel.odd_out && !dev->accel.sx) { WRITE(dev->accel.newdest_out + dev->accel.cur_x, dest_dat); } else { WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } } } mix_dat <<= 1; mix_dat |= 1; if (dev->bpp) cpu_dat >>= 16; else cpu_dat >>= 8; if (dev->accel.cmd & 0x20) dev->accel.cx++; else dev->accel.cx--; dev->accel.sx--; if (dev->accel.odd_out) { if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; dev->accel.odd_out = 0; dev->accel.cx = dev->accel.cur_x; if (dev->accel.cmd & 0x80) dev->accel.cy++; else dev->accel.cy--; if (((dev->local & 0xff) >= 0x02) && dev->accel.ge_offset && (dev->accel_bpp == 24)) { dev->accel.dest = (dev->accel.ge_offset << 2) + (dev->accel.cy * dev->pitch); dev->accel.newdest_out = (dev->accel.ge_offset << 2) + ((dev->accel.cy + 1) * dev->pitch); } else { dev->accel.dest = dev->accel.cy * dev->pitch; dev->accel.newdest_out = (dev->accel.cy + 1) * dev->pitch; } dev->accel.sy--; return; } } else { if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; dev->accel.odd_out = 1; dev->accel.sx--; dev->accel.cx = dev->accel.cur_x; if (dev->accel.cmd & 0x20) dev->accel.cx++; else dev->accel.cx--; if (dev->accel.cmd & 0x80) dev->accel.cy++; else dev->accel.cy--; if (((dev->local & 0xff) >= 0x02) && dev->accel.ge_offset && (dev->accel_bpp == 24)) { dev->accel.dest = (dev->accel.ge_offset << 2) + (dev->accel.cy * dev->pitch); dev->accel.newdest_out = (dev->accel.ge_offset << 2) + ((dev->accel.cy + 1) * dev->pitch); } else { dev->accel.dest = dev->accel.cy * dev->pitch; dev->accel.newdest_out = (dev->accel.cy + 1) * dev->pitch; } dev->accel.sy--; return; } } } } else { while (count-- && (dev->accel.sy >= 0)) { if (dev->accel.cx >= dev->accel.clip_left && dev->accel.cx <= clip_r && dev->accel.cy >= dev->accel.clip_top && dev->accel.cy <= clip_b) { if (ibm8514_cpu_dest(svga) && (pixcntl == 0)) { mix_dat = mix_mask; /* Mix data = forced to foreground register. */ } else if (ibm8514_cpu_dest(svga) && (pixcntl == 3)) { /* Mix data = current video memory value. */ READ(dev->accel.dest + dev->accel.cx, mix_dat); mix_dat = ((mix_dat & rd_mask) == rd_mask); mix_dat = mix_dat ? mix_mask : 0; } if (ibm8514_cpu_dest(svga)) { READ(dev->accel.dest + dev->accel.cx, src_dat); if (pixcntl == 3) { src_dat = ((src_dat & rd_mask) == rd_mask); } } else switch ((mix_dat & mix_mask) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = cpu_dat; break; case 3: src_dat = 0; break; default: break; } READ(dev->accel.dest + dev->accel.cx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; if (ibm8514_cpu_dest(svga)) { if (pixcntl == 3) { MIX(mix_dat & mix_mask, dest_dat, src_dat); } } else { MIX(mix_dat & mix_mask, dest_dat, src_dat); } dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } } mix_dat <<= 1; mix_dat |= 1; if (dev->bpp) cpu_dat >>= 16; else cpu_dat >>= 8; if (dev->accel.cmd & 0x20) dev->accel.cx++; else dev->accel.cx--; dev->accel.sx--; if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; if (dev->accel.cmd & 0x20) { dev->accel.cx -= (dev->accel.sx) + 1; } else dev->accel.cx += (dev->accel.sx) + 1; if (dev->accel.cmd & 0x80) dev->accel.cy++; else dev->accel.cy--; if (((dev->local & 0xff) >= 0x02) && dev->accel.ge_offset && (dev->accel_bpp == 24)) dev->accel.dest = (dev->accel.ge_offset << 2) + (dev->accel.cy * dev->pitch); else dev->accel.dest = dev->accel.cy * dev->pitch; dev->accel.sy--; return; } } } } } else { rect_fill: if (pixcntl == 1) { if (dev->accel.cmd & 0x40) { count = dev->accel.maj_axis_pcnt + 1; dev->accel.temp_cnt = 8; while (count-- && dev->accel.sy >= 0) { if (dev->accel.temp_cnt == 0) { mix_dat >>= 8; dev->accel.temp_cnt = 8; } if (dev->accel.cx >= dev->accel.clip_left && dev->accel.cx <= clip_r && dev->accel.cy >= dev->accel.clip_top && dev->accel.cy <= clip_b) { switch ((mix_dat & mix_mask) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = 0; break; case 3: src_dat = 0; break; default: break; } READ(dev->accel.dest + dev->accel.cx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & mix_mask, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } } if (dev->accel.temp_cnt > 0) { dev->accel.temp_cnt--; mix_dat <<= 1; mix_dat |= 1; } if (dev->accel.cmd & 0x20) dev->accel.cx++; else dev->accel.cx--; dev->accel.sx--; if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; if (dev->accel.cmd & 0x20) { dev->accel.cx -= (dev->accel.sx) + 1; } else dev->accel.cx += (dev->accel.sx) + 1; if (dev->accel.cmd & 0x80) dev->accel.cy++; else dev->accel.cy--; if (((dev->local & 0xff) >= 0x02) && dev->accel.ge_offset && (dev->accel_bpp == 24)) dev->accel.dest = (dev->accel.ge_offset << 2) + (dev->accel.cy * dev->pitch); else dev->accel.dest = dev->accel.cy * dev->pitch; dev->accel.sy--; dev->accel.cur_x = dev->accel.cx; dev->accel.cur_y = dev->accel.cy; return; } } } else { dev->accel.temp_cnt = 8; while (count-- && dev->accel.sy >= 0) { if (dev->accel.temp_cnt == 0) { dev->accel.temp_cnt = 8; mix_dat = old_mix_dat; } if (dev->accel.cx >= dev->accel.clip_left && dev->accel.cx <= clip_r && dev->accel.cy >= dev->accel.clip_top && dev->accel.cy <= clip_b) { switch ((mix_dat & 1) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = 0; break; case 3: src_dat = 0; break; default: break; } READ(dev->accel.dest + dev->accel.cx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & 1, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } } dev->accel.temp_cnt--; mix_dat >>= 1; if (dev->accel.cmd & 0x20) dev->accel.cx++; else dev->accel.cx--; dev->accel.sx--; if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; if (dev->accel.cmd & 0x20) { dev->accel.cx -= (dev->accel.sx) + 1; } else dev->accel.cx += (dev->accel.sx) + 1; if (dev->accel.cmd & 0x80) dev->accel.cy++; else dev->accel.cy--; if (((dev->local & 0xff) >= 0x02) && dev->accel.ge_offset && (dev->accel_bpp == 24)) dev->accel.dest = (dev->accel.ge_offset << 2) + (dev->accel.cy * dev->pitch); else dev->accel.dest = dev->accel.cy * dev->pitch; dev->accel.sy--; if (dev->accel.sy < 0) { dev->accel.cur_x = dev->accel.cx; dev->accel.cur_y = dev->accel.cy; return; } } } } } else { if (dev->accel.multifunc[0x0a] & 6) { while (count-- && dev->accel.sy >= 0) { if (dev->accel.cx >= dev->accel.clip_left && dev->accel.cx <= clip_r && dev->accel.cy >= dev->accel.clip_top && dev->accel.cy <= clip_b) { switch ((mix_dat & mix_mask) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = 0; break; case 3: src_dat = 0; break; default: break; } READ(dev->accel.dest + dev->accel.cx, poly_src); if (dev->accel.multifunc[0x0a] & 2) { poly_src = ((poly_src & wrt_mask) == wrt_mask); } else { poly_src = ((poly_src & rd_mask_polygon) == rd_mask_polygon); } if (poly_src) { dev->accel.fill_state ^= 1; } if (dev->accel.fill_state) { READ(dev->accel.dest + dev->accel.cx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & mix_mask, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } } } mix_dat <<= 1; mix_dat |= 1; if (dev->accel.cmd & 0x20) { dev->accel.cx++; } else { dev->accel.cx--; } dev->accel.sx--; if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; dev->accel.fill_state = 0; if (dev->accel.cmd & 0x20) { dev->accel.cx -= (dev->accel.sx) + 1; } else { dev->accel.cx += (dev->accel.sx) + 1; } if (dev->accel.cmd & 0x80) dev->accel.cy++; else dev->accel.cy--; if (((dev->local & 0xff) >= 0x02) && dev->accel.ge_offset && (dev->accel_bpp == 24)) dev->accel.dest = (dev->accel.ge_offset << 2) + (dev->accel.cy * dev->pitch); else dev->accel.dest = dev->accel.cy * dev->pitch; dev->accel.sy--; if (dev->accel.sy < 0) { dev->accel.cur_x = dev->accel.cx; dev->accel.cur_y = dev->accel.cy; return; } } } } else { while (count-- && dev->accel.sy >= 0) { if (dev->accel.cx >= dev->accel.clip_left && dev->accel.cx <= clip_r && dev->accel.cy >= dev->accel.clip_top && dev->accel.cy <= clip_b) { switch ((mix_dat & mix_mask) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = 0; break; case 3: src_dat = 0; break; default: break; } READ(dev->accel.dest + dev->accel.cx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & mix_mask, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); WRITE(dev->accel.dest + dev->accel.cx, dest_dat); } } mix_dat <<= 1; mix_dat |= 1; if (dev->accel.cmd & 0x20) dev->accel.cx++; else dev->accel.cx--; dev->accel.sx--; if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; if (dev->accel.cmd & 0x20) { dev->accel.cx -= (dev->accel.sx) + 1; } else dev->accel.cx += (dev->accel.sx) + 1; if (dev->accel.cmd & 0x80) dev->accel.cy++; else dev->accel.cy--; if (((dev->local & 0xff) >= 0x02) && dev->accel.ge_offset && (dev->accel_bpp == 24)) dev->accel.dest = (dev->accel.ge_offset << 2) + (dev->accel.cy * dev->pitch); else dev->accel.dest = dev->accel.cy * dev->pitch; dev->accel.sy--; if (dev->accel.sy < 0) { dev->accel.cur_x = dev->accel.cx; dev->accel.cur_y = dev->accel.cy; return; } } } } } } } break; case 5: /*Draw Polygon Boundary Line*/ if (!cpu_input) { dev->accel.cx = dev->accel.cur_x; dev->accel.cy = dev->accel.cur_y; if (dev->accel.cur_x >= 0x600) dev->accel.cx |= ~0x5ff; if (dev->accel.cur_y >= 0x600) dev->accel.cy |= ~0x5ff; dev->accel.oldcy = dev->accel.cy; dev->accel.sy = 0; if (ibm8514_cpu_src(svga)) { dev->data_available = 0; dev->data_available2 = 0; return; /*Wait for data from CPU*/ } else if (ibm8514_cpu_dest(svga)) { dev->data_available = 1; dev->data_available2 = 1; return; } } while (count-- && (dev->accel.sy >= 0)) { if ((dev->accel.cx) >= dev->accel.clip_left && ((dev->accel.cx) <= clip_r) && (dev->accel.cy) >= dev->accel.clip_top && (dev->accel.cy) <= clip_b) { switch ((mix_dat & mix_mask) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = cpu_dat; break; case 3: src_dat = 0; break; default: break; } READ((dev->accel.cy * dev->pitch) + dev->accel.cx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & mix_mask, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); if (dev->accel.cmd & 4) { if (dev->accel.sy < dev->accel.maj_axis_pcnt) { if (dev->accel.cmd & 0x40) { WRITE((dev->accel.cy * dev->pitch) + (dev->accel.cx), dest_dat); } else { if (dev->accel.cy == (dev->accel.oldcy + 1)) { if (dev->accel.cmd & 0x20) { if (dev->accel.err_term < (dev->accel.destx_distp + dev->accel.desty_axstp)) { WRITE((dev->accel.cy * dev->pitch) + (dev->accel.cx), dest_dat); } } else { if (dev->accel.err_term >= 0) { WRITE((dev->accel.cy * dev->pitch) + (dev->accel.cx), dest_dat); } } } } } } else { if (dev->accel.cmd & 0x40) { WRITE((dev->accel.cy * dev->pitch) + (dev->accel.cx), dest_dat); } else { if (dev->accel.cy == (dev->accel.oldcy + 1)) { if (dev->accel.cmd & 0x20) { if (dev->accel.err_term < (dev->accel.destx_distp + dev->accel.desty_axstp)) { WRITE((dev->accel.cy * dev->pitch) + (dev->accel.cx), dest_dat); } } else { if (dev->accel.err_term >= 0) { WRITE((dev->accel.cy * dev->pitch) + (dev->accel.cx), dest_dat); } } } } } } } mix_dat <<= 1; mix_dat |= 1; if (dev->bpp) cpu_dat >>= 16; else cpu_dat >>= 8; if (dev->accel.sy == dev->accel.maj_axis_pcnt) { break; } /*Step major axis*/ switch (dev->accel.cmd & 0xe0) { case 0x00: dev->accel.cx--; break; case 0x20: dev->accel.cx++; break; case 0x40: dev->accel.oldcy = dev->accel.cy; dev->accel.cy--; break; case 0x60: dev->accel.oldcy = dev->accel.cy; dev->accel.cy--; break; case 0x80: dev->accel.cx--; break; case 0xa0: dev->accel.cx++; break; case 0xc0: dev->accel.oldcy = dev->accel.cy; dev->accel.cy++; break; case 0xe0: dev->accel.oldcy = dev->accel.cy; dev->accel.cy++; break; default: break; } if (dev->accel.err_term >= 0) { dev->accel.err_term += dev->accel.destx_distp; /*Step minor axis*/ switch (dev->accel.cmd & 0xe0) { case 0x00: dev->accel.oldcy = dev->accel.cy; dev->accel.cy--; break; case 0x20: dev->accel.oldcy = dev->accel.cy; dev->accel.cy--; break; case 0x40: dev->accel.cx--; break; case 0x60: dev->accel.cx++; break; case 0x80: dev->accel.oldcy = dev->accel.cy; dev->accel.cy++; break; case 0xa0: dev->accel.oldcy = dev->accel.cy; dev->accel.cy++; break; case 0xc0: dev->accel.cx--; break; case 0xe0: dev->accel.cx++; break; default: break; } } else dev->accel.err_term += dev->accel.desty_axstp; dev->accel.sy++; } break; case 6: /*BitBlt*/ if (!cpu_input) /*!cpu_input is trigger to start operation*/ { dev->accel.x_count = 0; dev->accel.output = 0; dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; dev->accel.sy = dev->accel.multifunc[0] & 0x7ff; dev->accel.dx = dev->accel.destx_distp; dev->accel.dy = dev->accel.desty_axstp; if (dev->accel.destx_distp >= 0x600) dev->accel.dx |= ~0x5ff; if (dev->accel.desty_axstp >= 0x600) dev->accel.dy |= ~0x5ff; dev->accel.cx = dev->accel.cur_x; dev->accel.cy = dev->accel.cur_y; if (dev->accel.cur_x >= 0x600) dev->accel.cx |= ~0x5ff; if (dev->accel.cur_y >= 0x600) dev->accel.cy |= ~0x5ff; dev->accel.src = dev->accel.cy * dev->pitch; dev->accel.dest = dev->accel.dy * dev->pitch; if (ibm8514_cpu_src(svga)) { if (dev->accel.cmd & 2) { if (!(dev->accel.cmd & 0x1000)) { dev->accel.sx += (dev->accel.cur_x & 3); dev->accel.nibbleset = (uint8_t *) calloc(1, (dev->accel.sx >> 3) + 1); dev->accel.writemono = (uint8_t *) calloc(1, (dev->accel.sx >> 3) + 1); dev->accel.sys_cnt = (dev->accel.sx >> 3) + 1; } } dev->data_available = 0; dev->data_available2 = 0; return; /*Wait for data from CPU*/ } else if (ibm8514_cpu_dest(svga)) { dev->data_available = 1; dev->data_available2 = 1; return; /*Wait for data from CPU*/ } } if (dev->accel.cmd & 2) { if (cpu_input) { bitblt_pix: if (count < 8) { while (count-- && (dev->accel.sy >= 0)) { if (dev->accel.dx >= dev->accel.clip_left && dev->accel.dx <= clip_r && dev->accel.dy >= dev->accel.clip_top && dev->accel.dy <= clip_b) { if (pixcntl == 3) { if (!(dev->accel.cmd & 0x10) && ((frgd_mix != 3) || (bkgd_mix != 3))) { READ(dev->accel.src + dev->accel.cx, mix_dat); mix_dat = ((mix_dat & rd_mask) == rd_mask); mix_dat = mix_dat ? mix_mask : 0; } else if (dev->accel.cmd & 0x10) { READ(dev->accel.src + dev->accel.cx, mix_dat); mix_dat = ((mix_dat & rd_mask) == rd_mask); mix_dat = mix_dat ? mix_mask : 0; } } switch ((mix_dat & mix_mask) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = cpu_dat; break; case 3: READ(dev->accel.src + dev->accel.cx, src_dat); if (pixcntl == 3) { if (dev->accel.cmd & 0x10) { src_dat = ((src_dat & rd_mask) == rd_mask); } } break; default: break; } READ(dev->accel.dest + dev->accel.dx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & mix_mask, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); WRITE(dev->accel.dest + dev->accel.dx, dest_dat); } } mix_dat <<= 1; mix_dat |= 1; if (dev->bpp) cpu_dat >>= 16; else cpu_dat >>= 8; if (dev->accel.cmd & 0x20) { dev->accel.dx++; dev->accel.cx++; } else { dev->accel.dx--; dev->accel.cx--; } dev->accel.sx--; if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; if (dev->accel.cmd & 2) { dev->accel.sx += (dev->accel.cur_x & 3); } if (dev->accel.cmd & 0x20) { dev->accel.dx -= (dev->accel.sx) + 1; dev->accel.cx -= (dev->accel.sx) + 1; } else { dev->accel.dx += (dev->accel.sx) + 1; dev->accel.cx += (dev->accel.sx) + 1; } if (dev->accel.cmd & 0x80) { dev->accel.dy++; dev->accel.cy++; } else { dev->accel.dy--; dev->accel.cy--; } dev->accel.src = dev->accel.cy * dev->pitch; dev->accel.dest = dev->accel.dy * dev->pitch; dev->accel.sy--; return; } } } else { while (count-- && (dev->accel.sy >= 0)) { if (dev->accel.dx >= dev->accel.clip_left && dev->accel.dx <= clip_r && dev->accel.dy >= dev->accel.clip_top && dev->accel.dy <= clip_b) { if (pixcntl == 3) { if (!(dev->accel.cmd & 0x10) && ((frgd_mix != 3) || (bkgd_mix != 3))) { READ(dev->accel.src + dev->accel.cx, mix_dat); mix_dat = ((mix_dat & rd_mask) == rd_mask); mix_dat = mix_dat ? 1 : 0; } else if (dev->accel.cmd & 0x10) { READ(dev->accel.src + dev->accel.cx, mix_dat); mix_dat = ((mix_dat & rd_mask) == rd_mask); mix_dat = mix_dat ? 1 : 0; } } switch ((mix_dat & 1) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = cpu_dat; break; case 3: READ(dev->accel.src + dev->accel.cx, src_dat); if (pixcntl == 3) { if (dev->accel.cmd & 0x10) { src_dat = ((src_dat & rd_mask) == rd_mask); } } break; default: break; } READ(dev->accel.dest + dev->accel.dx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & 1, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); WRITE(dev->accel.dest + dev->accel.dx, dest_dat); } } mix_dat >>= 1; if (dev->bpp) cpu_dat >>= 16; else cpu_dat >>= 8; if (dev->accel.cmd & 0x20) { dev->accel.dx++; dev->accel.cx++; } else { dev->accel.dx--; dev->accel.cx--; } dev->accel.sx--; if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; if (dev->accel.cmd & 2) { if (!(dev->accel.cmd & 0x1000)) dev->accel.sx += (dev->accel.cur_x & 3); } if (dev->accel.cmd & 0x20) { dev->accel.dx -= (dev->accel.sx) + 1; dev->accel.cx -= (dev->accel.sx) + 1; } else { dev->accel.dx += (dev->accel.sx) + 1; dev->accel.cx += (dev->accel.sx) + 1; } if (dev->accel.cmd & 2) { if (dev->accel.cmd & 0x1000) { dev->accel.cx = dev->accel.cur_x; if (dev->accel.cur_x >= 0x600) dev->accel.cx |= ~0x5ff; dev->accel.dx = dev->accel.destx_distp; if (dev->accel.destx_distp >= 0x600) dev->accel.dx |= ~0x5ff; } } if (dev->accel.cmd & 0x80) { dev->accel.dy++; dev->accel.cy++; } else { dev->accel.dy--; dev->accel.cy--; } dev->accel.dest = dev->accel.dy * dev->pitch; dev->accel.src = dev->accel.cy * dev->pitch; dev->accel.sy--; return; } } } } else { goto bitblt; } } else { if (cpu_input) { if (pixcntl == 2) { goto bitblt_pix; } else { while (count-- && (dev->accel.sy >= 0)) { if (dev->accel.dx >= dev->accel.clip_left && dev->accel.dx <= clip_r && dev->accel.dy >= dev->accel.clip_top && dev->accel.dy <= clip_b) { if (pixcntl == 3) { if (!(dev->accel.cmd & 0x10) && ((frgd_mix != 3) || (bkgd_mix != 3))) { READ(dev->accel.src + dev->accel.cx, mix_dat); mix_dat = ((mix_dat & rd_mask) == rd_mask); mix_dat = mix_dat ? mix_mask : 0; } else if (dev->accel.cmd & 0x10) { READ(dev->accel.src + dev->accel.cx, mix_dat); mix_dat = ((mix_dat & rd_mask) == rd_mask); mix_dat = mix_dat ? mix_mask : 0; } } switch ((mix_dat & mix_mask) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = cpu_dat; break; case 3: READ(dev->accel.src + dev->accel.cx, src_dat); if (pixcntl == 3) { if (dev->accel.cmd & 0x10) { src_dat = ((src_dat & rd_mask) == rd_mask); } } break; default: break; } READ(dev->accel.dest + dev->accel.dx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & mix_mask, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); WRITE(dev->accel.dest + dev->accel.dx, dest_dat); } } mix_dat <<= 1; mix_dat |= 1; if (dev->bpp) cpu_dat >>= 16; else cpu_dat >>= 8; if (dev->accel.cmd & 0x20) { dev->accel.dx++; dev->accel.cx++; } else { dev->accel.dx--; dev->accel.cx--; } dev->accel.sx--; if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; if (dev->accel.cmd & 0x20) { dev->accel.dx -= (dev->accel.sx) + 1; dev->accel.cx -= (dev->accel.sx) + 1; } else { dev->accel.dx += (dev->accel.sx) + 1; dev->accel.cx += (dev->accel.sx) + 1; } if (dev->accel.cmd & 0x80) { dev->accel.dy++; dev->accel.cy++; } else { dev->accel.dy--; dev->accel.cy--; } dev->accel.dest = dev->accel.dy * dev->pitch; dev->accel.src = dev->accel.cy * dev->pitch; dev->accel.sy--; return; } } } } else { bitblt: if (pixcntl == 1) { if (dev->accel.cmd & 0x40) { count = dev->accel.maj_axis_pcnt + 1; dev->accel.temp_cnt = 8; while (count-- && dev->accel.sy >= 0) { if (!dev->accel.temp_cnt) { mix_dat >>= 8; dev->accel.temp_cnt = 8; } if (dev->accel.dx >= dev->accel.clip_left && dev->accel.dx <= clip_r && dev->accel.dy >= dev->accel.clip_top && dev->accel.dy <= clip_b) { switch ((mix_dat & mix_mask) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = 0; break; case 3: READ(dev->accel.src + dev->accel.cx, src_dat); break; default: break; } READ(dev->accel.dest + dev->accel.dx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & mix_mask, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); WRITE(dev->accel.dest + dev->accel.dx, dest_dat); } } if (dev->accel.temp_cnt > 0) { dev->accel.temp_cnt--; mix_dat <<= 1; mix_dat |= 1; } if (dev->accel.cmd & 0x20) { dev->accel.dx++; dev->accel.cx++; } else { dev->accel.dx--; dev->accel.cx--; } dev->accel.sx--; if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; if (dev->accel.cmd & 0x20) { dev->accel.dx -= (dev->accel.sx) + 1; dev->accel.cx -= (dev->accel.sx) + 1; } else { dev->accel.dx += (dev->accel.sx) + 1; dev->accel.cx += (dev->accel.sx) + 1; } if (dev->accel.cmd & 0x80) { dev->accel.dy++; dev->accel.cy++; } else { dev->accel.dy--; dev->accel.cy--; } dev->accel.dest = dev->accel.dy * dev->pitch; dev->accel.src = dev->accel.cy * dev->pitch; dev->accel.sy--; return; } } } else { dev->accel.temp_cnt = 8; while (count-- && dev->accel.sy >= 0) { if (!dev->accel.temp_cnt) { dev->accel.temp_cnt = 8; mix_dat = old_mix_dat; } if (dev->accel.dx >= dev->accel.clip_left && dev->accel.dx <= clip_r && dev->accel.dy >= dev->accel.clip_top && dev->accel.dy <= clip_b) { switch ((mix_dat & 1) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = 0; break; case 3: READ(dev->accel.src + dev->accel.cx, src_dat); break; default: break; } READ(dev->accel.dest + dev->accel.dx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & 1, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); WRITE(dev->accel.dest + dev->accel.dx, dest_dat); } } dev->accel.temp_cnt--; mix_dat >>= 1; if (dev->accel.cmd & 0x20) { dev->accel.dx++; dev->accel.cx++; } else { dev->accel.dx--; dev->accel.cx--; } dev->accel.sx--; if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; if (dev->accel.cmd & 0x20) { dev->accel.dx -= (dev->accel.sx) + 1; dev->accel.cx -= (dev->accel.sx) + 1; } else { dev->accel.dx += (dev->accel.sx) + 1; dev->accel.cx += (dev->accel.sx) + 1; } if (dev->accel.cmd & 0x80) { dev->accel.dy++; dev->accel.cy++; } else { dev->accel.dy--; dev->accel.cy--; } dev->accel.dest = dev->accel.dy * dev->pitch; dev->accel.src = dev->accel.cy * dev->pitch; dev->accel.sy--; if (dev->accel.sy < 0) { return; } } } } } else { if ((dev->accel_bpp == 24) && ((dev->local & 0xff) >= 0x02) && (dev->accel.cmd == 0xc2b5)) { int64_t cx; int64_t dx; cx = (int64_t) dev->accel.cx; dx = (int64_t) dev->accel.dx; while (1) { if ((dx >= (((int64_t)dev->accel.clip_left) * 3)) && (dx <= (((uint64_t)clip_r) * 3)) && (dev->accel.dy >= (dev->accel.clip_top << 1)) && (dev->accel.dy <= (clip_b << 1))) { READ(dev->accel.src + (dev->accel.ge_offset << 2) + cx, src_dat); READ(dev->accel.dest + (dev->accel.ge_offset << 2) + dx, dest_dat); dest_dat = (src_dat & wrt_mask) | (dest_dat & ~wrt_mask); WRITE(dev->accel.dest + (dev->accel.ge_offset << 2) + dx, dest_dat); } cx++; dx++; dev->accel.sx--; if (dev->accel.sx < 0) return; } return; } while (count-- && dev->accel.sy >= 0) { if ((dev->accel.dx >= dev->accel.clip_left) && (dev->accel.dx <= clip_r) && (dev->accel.dy >= dev->accel.clip_top) && (dev->accel.dy <= clip_b)) { if (pixcntl == 3) { if (!(dev->accel.cmd & 0x10) && ((frgd_mix != 3) || (bkgd_mix != 3))) { READ(dev->accel.src + dev->accel.cx, mix_dat); mix_dat = ((mix_dat & rd_mask) == rd_mask); mix_dat = mix_dat ? mix_mask : 0; } else if (dev->accel.cmd & 0x10) { READ(dev->accel.src + dev->accel.cx, mix_dat); mix_dat = ((mix_dat & rd_mask) == rd_mask); mix_dat = mix_dat ? mix_mask : 0; } } switch ((mix_dat & mix_mask) ? frgd_mix : bkgd_mix) { case 0: src_dat = bkgd_color; break; case 1: src_dat = frgd_color; break; case 2: src_dat = 0; break; case 3: READ(dev->accel.src + dev->accel.cx, src_dat); if (pixcntl == 3) { if (dev->accel.cmd & 0x10) { src_dat = ((src_dat & rd_mask) == rd_mask); } } break; default: break; } READ(dev->accel.dest + dev->accel.dx, dest_dat); if ((compare_mode == 0) || ((compare_mode == 0x10) && (dest_dat >= compare)) || ((compare_mode == 0x18) && (dest_dat < compare)) || ((compare_mode == 0x20) && (dest_dat != compare)) || ((compare_mode == 0x28) && (dest_dat == compare)) || ((compare_mode == 0x30) && (dest_dat <= compare)) || ((compare_mode == 0x38) && (dest_dat > compare))) { old_dest_dat = dest_dat; MIX(mix_dat & mix_mask, dest_dat, src_dat); dest_dat = (dest_dat & wrt_mask) | (old_dest_dat & ~wrt_mask); if (dev->accel.cmd & 4) { if (dev->accel.sx > 0) { WRITE(dev->accel.dest + dev->accel.dx, dest_dat); } } else { WRITE(dev->accel.dest + dev->accel.dx, dest_dat); } } } mix_dat <<= 1; mix_dat |= 1; if (dev->accel.cmd & 0x20) { dev->accel.dx++; dev->accel.cx++; } else { dev->accel.dx--; dev->accel.cx--; } dev->accel.sx--; if (dev->accel.sx < 0) { dev->accel.sx = dev->accel.maj_axis_pcnt & 0x7ff; if (dev->accel.cmd & 0x20) { dev->accel.dx -= (dev->accel.sx) + 1; dev->accel.cx -= (dev->accel.sx) + 1; } else { dev->accel.dx += (dev->accel.sx) + 1; dev->accel.cx += (dev->accel.sx) + 1; } if (dev->accel.cmd & 0x80) { dev->accel.dy++; dev->accel.cy++; } else { dev->accel.dy--; dev->accel.cy--; } dev->accel.dest = dev->accel.dy * dev->pitch; dev->accel.src = dev->accel.cy * dev->pitch; dev->accel.sy--; if (dev->accel.sy < 0) { return; } } } } } } break; default: break; } } void ibm8514_render_8bpp(svga_t *svga) { ibm8514_t *dev = (ibm8514_t *) svga->dev8514; uint32_t *p; uint32_t dat; if ((dev->displine + svga->y_add) < 0) { return; } if (dev->changedvram[dev->ma >> 12] || dev->changedvram[(dev->ma >> 12) + 1] || svga->fullchange) { p = &buffer32->line[dev->displine + svga->y_add][svga->x_add]; if (dev->firstline_draw == 2000) dev->firstline_draw = dev->displine; dev->lastline_draw = dev->displine; for (int x = 0; x <= dev->h_disp; x += 8) { dat = *(uint32_t *) (&dev->vram[dev->ma & dev->vram_mask]); p[0] = dev->pallook[dat & 0xff]; p[1] = dev->pallook[(dat >> 8) & 0xff]; p[2] = dev->pallook[(dat >> 16) & 0xff]; p[3] = dev->pallook[(dat >> 24) & 0xff]; dat = *(uint32_t *) (&dev->vram[(dev->ma + 4) & dev->vram_mask]); p[4] = dev->pallook[dat & 0xff]; p[5] = dev->pallook[(dat >> 8) & 0xff]; p[6] = dev->pallook[(dat >> 16) & 0xff]; p[7] = dev->pallook[(dat >> 24) & 0xff]; dev->ma += 8; p += 8; } dev->ma &= dev->vram_mask; } } void ibm8514_render_15bpp(svga_t *svga) { ibm8514_t *dev = (ibm8514_t *) svga->dev8514; int x; uint32_t *p; uint32_t dat; if ((dev->displine + svga->y_add) < 0) { return; } if (dev->changedvram[dev->ma >> 12] || dev->changedvram[(dev->ma >> 12) + 1] || svga->fullchange) { p = &buffer32->line[dev->displine + svga->y_add][svga->x_add]; if (dev->firstline_draw == 2000) dev->firstline_draw = dev->displine; dev->lastline_draw = dev->displine; for (x = 0; x <= dev->h_disp; x += 8) { dat = *(uint32_t *) (&dev->vram[(dev->ma + (x << 1)) & dev->vram_mask]); p[x] = video_15to32[dat & 0xffff]; p[x + 1] = video_15to32[dat >> 16]; dat = *(uint32_t *) (&dev->vram[(dev->ma + (x << 1) + 4) & dev->vram_mask]); p[x + 2] = video_15to32[dat & 0xffff]; p[x + 3] = video_15to32[dat >> 16]; dat = *(uint32_t *) (&dev->vram[(dev->ma + (x << 1) + 8) & dev->vram_mask]); p[x + 4] = video_15to32[dat & 0xffff]; p[x + 5] = video_15to32[dat >> 16]; dat = *(uint32_t *) (&dev->vram[(dev->ma + (x << 1) + 12) & dev->vram_mask]); p[x + 6] = video_15to32[dat & 0xffff]; p[x + 7] = video_15to32[dat >> 16]; } dev->ma += (x << 1); dev->ma &= dev->vram_mask; } } void ibm8514_render_16bpp(svga_t *svga) { ibm8514_t *dev = (ibm8514_t *) svga->dev8514; int x; uint32_t *p; uint32_t dat; if ((dev->displine + svga->y_add) < 0) { return; } if (dev->changedvram[dev->ma >> 12] || dev->changedvram[(dev->ma >> 12) + 1] || svga->fullchange) { p = &buffer32->line[dev->displine + svga->y_add][svga->x_add]; if (dev->firstline_draw == 2000) dev->firstline_draw = dev->displine; dev->lastline_draw = dev->displine; for (x = 0; x <= dev->h_disp; x += 8) { dat = *(uint32_t *) (&dev->vram[(dev->ma + (x << 1)) & dev->vram_mask]); p[x] = video_16to32[dat & 0xffff]; p[x + 1] = video_16to32[dat >> 16]; dat = *(uint32_t *) (&dev->vram[(dev->ma + (x << 1) + 4) & dev->vram_mask]); p[x + 2] = video_16to32[dat & 0xffff]; p[x + 3] = video_16to32[dat >> 16]; dat = *(uint32_t *) (&dev->vram[(dev->ma + (x << 1) + 8) & dev->vram_mask]); p[x + 4] = video_16to32[dat & 0xffff]; p[x + 5] = video_16to32[dat >> 16]; dat = *(uint32_t *) (&dev->vram[(dev->ma + (x << 1) + 12) & dev->vram_mask]); p[x + 6] = video_16to32[dat & 0xffff]; p[x + 7] = video_16to32[dat >> 16]; } dev->ma += (x << 1); dev->ma &= dev->vram_mask; } } void ibm8514_render_24bpp(svga_t *svga) { ibm8514_t *dev = (ibm8514_t *) svga->dev8514; uint32_t *p; uint32_t dat; if ((dev->displine + svga->y_add) < 0) return; if (dev->changedvram[dev->ma >> 12] || dev->changedvram[(dev->ma >> 12) + 1] || svga->fullchange) { p = &buffer32->line[dev->displine + svga->y_add][svga->x_add]; if (dev->firstline_draw == 2000) dev->firstline_draw = dev->displine; dev->lastline_draw = dev->displine; for (int x = 0; x <= dev->h_disp; x += 4) { dat = *(uint32_t *) (&dev->vram[dev->ma & dev->vram_mask]); p[x] = dat & 0xffffff; dat = *(uint32_t *) (&dev->vram[(dev->ma + 3) & dev->vram_mask]); p[x + 1] = dat & 0xffffff; dat = *(uint32_t *) (&dev->vram[(dev->ma + 6) & dev->vram_mask]); p[x + 2] = dat & 0xffffff; dat = *(uint32_t *) (&dev->vram[(dev->ma + 9) & dev->vram_mask]); p[x + 3] = dat & 0xffffff; dev->ma += 12; } dev->ma &= dev->vram_mask; } } void ibm8514_render_BGR(svga_t *svga) { ibm8514_t *dev = (ibm8514_t *) svga->dev8514; uint32_t *p; uint32_t dat; if ((dev->displine + svga->y_add) < 0) return; if (dev->changedvram[dev->ma >> 12] || dev->changedvram[(dev->ma >> 12) + 1] || svga->fullchange) { p = &buffer32->line[dev->displine + svga->y_add][svga->x_add]; if (dev->firstline_draw == 2000) dev->firstline_draw = dev->displine; dev->lastline_draw = dev->displine; for (int x = 0; x <= dev->h_disp; x += 4) { dat = *(uint32_t *) (&dev->vram[dev->ma & dev->vram_mask]); p[x] = ((dat & 0xff0000) >> 16) | (dat & 0x00ff00) | ((dat & 0x0000ff) << 16); dat = *(uint32_t *) (&dev->vram[(dev->ma + 3) & dev->vram_mask]); p[x + 1] = ((dat & 0xff0000) >> 16) | (dat & 0x00ff00) | ((dat & 0x0000ff) << 16); dat = *(uint32_t *) (&dev->vram[(dev->ma + 6) & dev->vram_mask]); p[x + 2] = ((dat & 0xff0000) >> 16) | (dat & 0x00ff00) | ((dat & 0x0000ff) << 16); dat = *(uint32_t *) (&dev->vram[(dev->ma + 9) & dev->vram_mask]); p[x + 3] = ((dat & 0xff0000) >> 16) | (dat & 0x00ff00) | ((dat & 0x0000ff) << 16); dev->ma += 12; } dev->ma &= dev->vram_mask; } } void ibm8514_render_ABGR8888(svga_t *svga) { ibm8514_t *dev = (ibm8514_t *) svga->dev8514; int x; uint32_t *p; uint32_t dat; if ((dev->displine + svga->y_add) < 0) return; if (dev->changedvram[dev->ma >> 12] || dev->changedvram[(dev->ma >> 12) + 1] || svga->fullchange) { p = &buffer32->line[dev->displine + svga->y_add][svga->x_add]; if (dev->firstline_draw == 2000) dev->firstline_draw = dev->displine; dev->lastline_draw = dev->displine; for (x = 0; x <= dev->h_disp; x++) { dat = *(uint32_t *) (&dev->vram[(dev->ma + (x << 2)) & dev->vram_mask]); *p++ = ((dat & 0xff0000) >> 16) | (dat & 0x00ff00) | ((dat & 0x0000ff) << 16); } dev->ma += (x * 4); dev->ma &= dev->vram_mask; } } void ibm8514_render_32bpp(svga_t *svga) { ibm8514_t *dev = (ibm8514_t *) svga->dev8514; int x; uint32_t *p; uint32_t dat; if ((dev->displine + svga->y_add) < 0) return; if (dev->changedvram[dev->ma >> 12] || dev->changedvram[(dev->ma >> 12) + 1] || dev->changedvram[(dev->ma >> 12) + 2] || svga->fullchange) { p = &buffer32->line[dev->displine + svga->y_add][svga->x_add]; if (dev->firstline_draw == 2000) dev->firstline_draw = dev->displine; dev->lastline_draw = dev->displine; for (x = 0; x <= dev->h_disp; x++) { dat = *(uint32_t *) (&dev->vram[(dev->ma + (x << 2)) & dev->vram_mask]); p[x] = dat & 0xffffff; } dev->ma += (x * 4); dev->ma &= dev->vram_mask; } } static void ibm8514_render_overscan_left(ibm8514_t *dev, svga_t *svga) { if ((dev->displine + svga->y_add) < 0) return; if (svga->scrblank || (dev->h_disp == 0)) return; for (int i = 0; i < svga->x_add; i++) buffer32->line[dev->displine + svga->y_add][i] = svga->overscan_color; } static void ibm8514_render_overscan_right(ibm8514_t *dev, svga_t *svga) { int right; if ((dev->displine + svga->y_add) < 0) return; if (svga->scrblank || (dev->h_disp == 0)) return; right = (overscan_x >> 1); for (int i = 0; i < right; i++) buffer32->line[dev->displine + svga->y_add][svga->x_add + dev->h_disp + i] = svga->overscan_color; } void ibm8514_poll(void *priv, svga_t *svga) { ibm8514_t *dev = (ibm8514_t *) priv; uint32_t x; int wx; int wy; if (!dev->linepos) { if ((dev->displine == dev->hwcursor_latch.y) && dev->hwcursor_latch.ena) { dev->hwcursor_on = dev->hwcursor_latch.cur_ysize - dev->hwcursor_latch.yoff; dev->hwcursor_oddeven = 0; } if ((dev->displine == (dev->hwcursor_latch.y + 1)) && dev->hwcursor_latch.ena && dev->interlace) { dev->hwcursor_on = dev->hwcursor_latch.cur_ysize - (dev->hwcursor_latch.yoff + 1); dev->hwcursor_oddeven = 1; } timer_advance_u64(&svga->timer, svga->dispofftime); svga->cgastat |= 1; dev->linepos = 1; if (dev->dispon) { dev->hdisp_on = 1; dev->ma &= dev->vram_mask; if (dev->firstline == 2000) { dev->firstline = dev->displine; video_wait_for_buffer_monitor(svga->monitor_index); } if (dev->hwcursor_on) dev->changedvram[dev->ma >> 12] = dev->changedvram[(dev->ma >> 12) + 1] = dev->interlace ? 3 : 2; svga->render8514(svga); svga->x_add = (overscan_x >> 1); ibm8514_render_overscan_left(dev, svga); ibm8514_render_overscan_right(dev, svga); svga->x_add = (overscan_x >> 1); if (dev->hwcursor_on) { if (svga->hwcursor_draw) svga->hwcursor_draw(svga, dev->displine + svga->y_add); dev->hwcursor_on--; if (dev->hwcursor_on && dev->interlace) dev->hwcursor_on--; } if (dev->lastline < dev->displine) dev->lastline = dev->displine; } dev->displine++; if (dev->interlace) dev->displine++; if ((svga->cgastat & 8) && ((dev->displine & 0x0f) == (svga->crtc[0x11] & 0x0f)) && svga->vslines) svga->cgastat &= ~8; svga->vslines++; if (dev->displine > 1500) dev->displine = 0; } else { timer_advance_u64(&svga->timer, svga->dispontime); if (dev->dispon) svga->cgastat &= ~1; dev->hdisp_on = 0; dev->linepos = 0; if (dev->dispon) { if (dev->sc == dev->rowcount) { dev->sc = 0; dev->maback += (dev->rowoffset << 3); if (dev->interlace) dev->maback += (dev->rowoffset << 3); dev->maback &= dev->vram_mask; dev->ma = dev->maback; } else { dev->sc++; dev->sc &= 0x1f; dev->ma = dev->maback; } } dev->vc++; dev->vc &= 0x7ff; if (dev->vc == dev->dispend) { dev->dispon = 0; for (x = 0; x < ((dev->vram_mask + 1) >> 12); x++) { if (dev->changedvram[x]) dev->changedvram[x]--; } if (svga->fullchange) svga->fullchange--; } if (dev->vc == dev->v_syncstart) { dev->dispon = 0; svga->cgastat |= 8; x = dev->h_disp; if (dev->interlace && !dev->oddeven) dev->lastline++; if (dev->interlace && dev->oddeven) dev->firstline--; wx = x; wy = dev->lastline - dev->firstline; svga_doblit(wx, wy, svga); dev->firstline = 2000; dev->lastline = 0; dev->firstline_draw = 2000; dev->lastline_draw = 0; dev->oddeven ^= 1; svga->monitor->mon_changeframecount = dev->interlace ? 3 : 2; svga->vslines = 0; if (dev->interlace && dev->oddeven) dev->ma = dev->maback = (dev->rowoffset << 1); else dev->ma = dev->maback = 0; dev->ma = (dev->ma << 2); dev->maback = (dev->maback << 2); } if (dev->vc == dev->v_total) { dev->vc = 0; dev->sc = 0; dev->dispon = 1; dev->displine = (dev->interlace && dev->oddeven) ? 1 : 0; svga->x_add = (overscan_x >> 1); dev->hwcursor_on = 0; dev->hwcursor_latch = dev->hwcursor; } } } void ibm8514_recalctimings(svga_t *svga) { ibm8514_t *dev = (ibm8514_t *) svga->dev8514; if (dev->on[0]) { dev->h_disp = (dev->hdisp + 1) << 3; dev->pitch = (dev->accel.advfunc_cntl & 4) ? 1024 : 640; dev->h_total = (dev->htotal + 1); dev->v_total = (dev->vtotal + 1); dev->v_syncstart = (dev->vsyncstart + 1); dev->rowcount = !!(dev->disp_cntl & 0x08); dev->dispend = ((dev->vdisp >> 1) + 1); if (dev->dispend == 766) dev->dispend += 2; if (dev->dispend == 598) dev->dispend += 2; if (dev->accel.advfunc_cntl & 4) { if (dev->h_disp == 8) { dev->h_disp = 1024; dev->dispend = 768; dev->v_total = 1536; dev->v_syncstart = 1536; } if (dev->dispend == 598) dev->dispend = 600; if (dev->interlace) { dev->dispend >>= 1; dev->v_syncstart >>= 2; dev->v_total >>= 2; } else { dev->v_syncstart >>= 1; dev->v_total >>= 1; } dev->rowoffset = 0x80; ibm8514_log("1024x768 clock mode, hdisp = %d, htotal = %d, vtotal = %d, vsyncstart = %d, interlace = %02x\n", dev->h_disp, dev->h_total, dev->v_total, dev->v_syncstart, dev->interlace); svga->clock = (cpuclock * (double) (1ULL << 32)) / 44900000.0; } else { if (dev->h_disp == 1024) { dev->h_disp = 640; dev->dispend = 480; } if (dev->interlace) { dev->dispend >>= 1; dev->v_syncstart >>= 2; dev->v_total >>= 2; } else { dev->v_syncstart >>= 1; dev->v_total >>= 1; } dev->rowoffset = 0x80; svga->clock = (cpuclock * (double) (1ULL << 32)) / 25175000.0; } svga->render8514 = ibm8514_render_8bpp; ibm8514_log("BPP=%d, Pitch = %d, rowoffset = %d, crtc13 = %02x, mode = %d, highres bit = %02x, has_vga? = %d.\n", dev->bpp, dev->pitch, dev->rowoffset, svga->crtc[0x13], dev->ibm_mode, dev->accel.advfunc_cntl & 4, !ibm8514_standalone_enabled); } ibm8514_log("8514 enabled, hdisp=%d, vtotal=%d, htotal=%d, dispend=%d, rowoffset=%d, split=%d, vsyncstart=%d, split=%08x\n", dev->hdisp, dev->vtotal, dev->htotal, dev->dispend, dev->rowoffset, dev->split, dev->vsyncstart, dev->split); } static uint8_t ibm8514_mca_read(int port, void *priv) { const svga_t *svga = (svga_t *) priv; const ibm8514_t *dev = (ibm8514_t *) svga->dev8514; return (dev->pos_regs[port & 7]); } static void ibm8514_mca_write(int port, uint8_t val, void *priv) { svga_t *svga = (svga_t *) priv; ibm8514_t *dev = (ibm8514_t *) svga->dev8514; /* MCA does not write registers below 0x0100. */ if (port < 0x0102) return; /* Save the MCA register value. */ dev->pos_regs[port & 7] = val; } static uint8_t ibm8514_mca_feedb(void *priv) { const svga_t *svga = (svga_t *) priv; const ibm8514_t *dev = (ibm8514_t *) svga->dev8514; return dev->pos_regs[2] & 1; } static void * ibm8514_init(const device_t *info) { if (svga_get_pri() == NULL) return NULL; svga_t *svga = svga_get_pri(); ibm8514_t *dev = (ibm8514_t *) calloc(1, sizeof(ibm8514_t)); svga->dev8514 = dev; dev->vram_size = 1024 << 10; dev->vram = calloc(dev->vram_size, 1); dev->changedvram = calloc(dev->vram_size >> 12, 1); dev->vram_mask = dev->vram_size - 1; dev->map8 = dev->pallook; dev->type = info->flags; dev->bpp = 0; ibm8514_io_set(svga); if (dev->type & DEVICE_MCA) { dev->pos_regs[0] = 0x7f; dev->pos_regs[1] = 0xef; mca_add(ibm8514_mca_read, ibm8514_mca_write, ibm8514_mca_feedb, NULL, svga); } return svga; } static void ibm8514_close(void *priv) { svga_t *svga = (svga_t *) priv; ibm8514_t *dev = (ibm8514_t *) svga->dev8514; if (dev) { free(dev->vram); free(dev->changedvram); free(dev); } } static void ibm8514_speed_changed(void *priv) { svga_t *svga = (svga_t *) priv; svga_recalctimings(svga); } static void ibm8514_force_redraw(void *priv) { svga_t *svga = (svga_t *) priv; svga->fullchange = changeframecount; } // clang-format off const device_t gen8514_isa_device = { .name = "Generic 8514/A clone (ISA)", .internal_name = "8514_isa", .flags = DEVICE_AT | DEVICE_ISA, .local = 0, .init = ibm8514_init, .close = ibm8514_close, .reset = NULL, { .available = NULL }, .speed_changed = ibm8514_speed_changed, .force_redraw = ibm8514_force_redraw, .config = NULL }; const device_t ibm8514_mca_device = { .name = "IBM 8514/A (MCA)", .internal_name = "8514_mca", .flags = DEVICE_MCA, .local = 0, .init = ibm8514_init, .close = ibm8514_close, .reset = NULL, { .available = NULL }, .speed_changed = ibm8514_speed_changed, .force_redraw = ibm8514_force_redraw, .config = NULL }; void ibm8514_device_add(void) { if (!ibm8514_standalone_enabled) return; if (machine_has_bus(machine, MACHINE_BUS_MCA)) device_add(&ibm8514_mca_device); else device_add(&gen8514_isa_device); }