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726ce6c574076807772b4cbcfaedcfb309b2555d
86Box/src/video/vid_ps55da2.c
Akamaki 726ce6c574 modify video memory mask and screen updating
2025-02-28 10:29:17 +09:00

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/*
* 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.
*
* IBM PS/55 Display Adapter II (and its successors) emulation.
*
* Notes: There are some known issues that should be corrected.
* - Incorrect foreground text color appears on an active window in OS/2 J1.3.
* - BitBlt's text drawing function does not work correctly.
* - The screen resolution and blanking interval time maybe not correct.
*
* The code should be tested with following cases.
* - Execute MODE 0, 1, 3 and 4 commands in DOS K3.3 to test various video modes.
* - Run SAMPLE program with the BASIC interpreter in DOS K3.3.
* - Run DOS J4.0 install program to test video mode 03.
* - Run Win 3.1 (IBM-J OEM) and OS/2 J1.3 with 16 and 256 color driver to test BilBlt operations.
*
* Authors: Akamaki.
*
* Copyright 2024-2025 Akamaki.
*/
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <wchar.h>
#include <stdatomic.h>
#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_ps55da2.h>
#include <86box/vid_svga.h>
#include <86box/vid_svga_render.h>
#include "cpu.h"
#define DA2_FONTROM_PATH_JPAN "roms/video/da2/94X1320.BIN"
#define DA2_FONTROM_PATH_HANT "roms/video/da2/23F2698.BIN"
#define DA2_FONTROM_SIZE (1536 * 1024)
#define DA2_FONTROM_BASESBCS 0x98000
#define DA2_GAIJIRAM_SBCS 0x34000
#define DA2_GAIJIRAM_SBEX 0x3c000
#define DA2_VM03_BASECHR 0x18000
#define DA2_VM03_BASEEXATTR 0x10000
#define DA2_INVALIDACCESS8 0xffu
#define DA2_INVALIDACCESS16 0xffffu
#define DA2_INVALIDACCESS32 0xffffffffu
#define DA2_MASK_MMIO 0x1ffff
#define DA2_SIZE_VRAM (1024 * 1024) /* 0x100000 */
#define DA2_SIZE_CRAM (4 * 1024) /* 0x1000 */
#define DA2_SIZE_GAIJIRAM (256 * 1024) /* 0x40000 */
#define DA2_MASK_A000 0x1ffff /* 0x1FFFF */
#define DA2_MASK_CRAM 0xfff /* 0xFFF */
#define DA2_MASK_GAIJIRAM 0x3ffff /* 0x3FFFF */
#define DA2_MASK_VRAM 0xfffff /* 0xFFFFF */
#define DA2_MASK_VRAMPLANE 0x1ffff /* 0x1FFFF */
#define DA2_PIXELCLOCK 29000000.0 /* 58 MHz interlaced */
#define DA2_BLT_MEMSIZE 0x100
#define DA2_BLT_REGSIZE 0x40
#define DA2_DEBUG_BLTLOG_SIZE (DA2_BLT_REGSIZE + 1)
#define DA2_DEBUG_BLTLOG_MAX (256 * 1024)
#define DA2_DEBUG_BLT_NEVERUSED 0xfefefefe
#define DA2_DEBUG_BLT_USEDRESET 0xfefefe
#define DA2_DCONFIG_CHARSET_JPAN 0 /* for Code page 932 Japanese */
// #define DA2_DCONFIG_CHARSET_HANG 1 /* for Code page 934 Hangul */
// #define DA2_DCONFIG_CHARSET_HANS 2 /* for Code page 936 Simplified Chinese */
/* These ROMs are currently not found.
At least, IBM-J released a Korean and PRC version of PS/55 for each market. */
#define DA2_DCONFIG_CHARSET_HANT 3 /* for Code page 938 Traditional Chinese */
#define DA2_DCONFIG_MONTYPE_COLOR 0x0A
#define DA2_DCONFIG_MONTYPE_8515 0x0B
#define DA2_DCONFIG_MONTYPE_MONO 0x09
#define DA2_BLT_CIDLE 0
#define DA2_BLT_CFILLRECT 1
#define DA2_BLT_CFILLTILE 2
#define DA2_BLT_CCOPYF 3
#define DA2_BLT_CCOPYR 4
#define DA2_BLT_CPUTCHAR 5
#define DA2_BLT_CLINE 6
#define DA2_BLT_CDONE 7
#define DA2_BLT_CLOAD 8
/* POS ID = 0xeffe : Display Adapter II, III, V */
#define DA2_POSID_H 0xef
#define DA2_POSID_L 0xfe
/*
[Identification]
POS ID SYS ID
EFFFh * Display Adapter (PS/55 Model 5571-S0A) [Toledo]
E013h * Layout Display Terminal (PS/55-5571 RPQ model) [LDT]
EFFEh * Display Adapter II (I/O 3E0:0A = xx0x xxxx) [Atlas]
|- FFF2h Display Adapter B2 (I/O 3E0:0A = xx1x xxxx) (PS/55 Model 5530Z-SX)
|- FDFEh Display Adapter B2 (I/O 3E0:0A = xx1x xxxx) (PS/55 Model 5550-V2)
|- * Display Adapter III,V (I/O 3E0:0A = xx1x xxxx)
ECECh FF4Fh Display Adapter B1 (PS/55 Model 5531Z-SX) [Atlas-KENT]
|- * Display Adapter IV
ECCEh * Display Adapter IV
901Fh * Display Adapter A2
901Dh * Display Adapter A1 [Atlas II]
901Eh * Plasma Display Adapter
EFD8h * Display Adapter/J [Atlas-SP2]
[Japanese DOS and Display Adapter compatibility]
| POS ID | Adapter Name | K3.31 | J4.04 | J4.08 | OS2 J1.3 | Win3 |
|------------|-----------------------------|:-----:|:-----:|:-----:|:--------:|:----:|
| EFFFh | Display Adapter | X | | | | |
| FFEDh | ? [Atlas EVT] | X | | | | |
| FFFDh | ? [LDT EVT] | X | | | | |
| EFFEh | Display Adapter II,III,V,B2 | X | X | X | X | X |
| E013h | ? [LDT] | X | X | X | X | |
| ECCEh | Display Adapter IV | | X | X | X | |
| ECECh | Display Adapter IV,B1 | | X | X | X | X |
| 9000-901Fh | Display Adapter A1,A2 | | X | X | | X |
| EFD8h | Display Adapter /J | | | X | X | X |
*/
/* IO 3E0/3E1:0Ah Hardware Configuration Value L (imported from OS/2 DDK) */
#define OldLSI 0x20 /* 1 = DA-2, 0 = DA-3 */
// #define Mon_ID3 0x10
#define FontCard 0x08 /* ? */
#define Page_One 0x06 /* 80000h 110b */
#define Page_Two 0x05 /* 100000h 101b */
#define Page_Four 0x03 /* 200000h 011b */
/* Page Number Mask : Memory Size? = (110b and 111b): vram size is 512k (256 color mode unsupported). */
/* IO 3E0/3E1:0Bh Hardware Configuration Value H (imported from OS/2 DDK) */
#define AddPage 0x08 /* ? */
// #define Mon_ID2 0x04
// #define Mon_ID1 0x02
// #define Mon_ID0 0x01
/* Monitor ID (imported from OS/2 DDK 1.2)
#define StarbuckC 0x0A // 1 010b IBM 8514, 9518 color 1040x768
#define StarbuckM 0x09 // 1 001b IBM 8507, 8604 grayscale
#define Lark_B 0x02 // 0 010b IBM 9517 color 1040x768 but 4bpp
#define Dallas 0x0B // 1 011b IBM 8515, 9515 color 1040x740 another palette
*/
/* DA2 Registers (imported from OS/2 DDK) */
#define AC_REG 0x3EE
#define AC_DMAE 0x80
#define AC_FONT_SEL 0x40
#define FONT_BANK 0x3EF
#define LS_INDEX 0x3E0
#define LS_DATA 0x3E1
#define LS_RESET 0x00
#define LS_MODE 0x02
#define LS_STATUS 0x03 /* added */
#define LS_MMIO 0x08 /* added */
#define LS_CONFIG1 0x0a
#define LS_CONFIG2 0x0b /* added */
#define LF_INDEX 0x3e2
#define LF_DATA 0x3e3
#define LF_MMIO_SEL 0x08 /* added */
#define LF_MMIO_ADDR 0x0A /* added */
#define LF_MMIO_MODE 0x0B /* added */
#define LC_INDEX 0x3E4
#define LC_DATA 0x3E5
#define LC_HORIZONTAL_TOTAL 0x00
#define LC_H_DISPLAY_ENABLE_END 0x01
#define LC_START_H_BLANKING 0x02
#define LC_END_H_BLANKING 0x03
#define LC_START_HSYNC_PULSE 0x04
#define LC_END_HSYNC_PULSE 0x05
#define LC_VERTICAL_TOTALJ 0x06
#define LC_CRTC_OVERFLOW 0x07
#define LC_PRESET_ROW_SCANJ 0x08
#define LC_MAXIMUM_SCAN_LINE 0x09
#define LC_CURSOR_ROW_START 0x0A
#define LC_CURSOR_ROW_END 0x0B
#define LC_START_ADDRESS_HIGH 0x0C
#define LC_START_ADDRESS_LOW 0x0D
#define LC_CURSOR_LOC_HIGH 0x0E
#define LC_ROW_CURSOR_LOC 0x0E
#define LC_CURSOR_LOC_LOWJ 0x0F
#define LC_COLUMN_CURSOR_LOC 0x0F
#define LC_VERTICAL_SYNC_START 0x10
#define LC_LIGHT_PEN_HIGH 0x10
#define LC_VERTICAL_SYNC_END 0x11
#define LC_LIGHT_PEN_LOW 0x11
#define LC_V_DISPLAY_ENABLE_END 0x12
#define LC_OFFSET 0x13
#define LC_UNDERLINE_LOCATION 0x14
#define LC_START_VERTICAL_BLANK 0x15
#define LC_END_VERTICAL_BLANK 0x16
#define LC_LC_MODE_CONTROL 0x17
#define LC_LINE_COMPAREJ 0x18
#define LC_START_H_DISPLAY_ENAB 0x19
#define LC_START_V_DISPLAY_ENAB 0x1A
#define LC_VIEWPORT_COMMAND 0x1B
#define LC_VIEWPORT_SELECT 0x1C
#define LC_VIEWPORT_PRIORITY 0x1D
#define LC_COMMAND 0x1E
#define LC_COMPATIBILITY 0x1F
#define LC_VIEWPORT_NUMBER 0x1F
#define LV_PORT 0x3E8
#define LV_PALETTE_0 0x00
#define LV_MODE_CONTROL 0x10
#define LV_OVERSCAN_COLOR 0x11
#define LV_COLOR_PLANE_ENAB 0x12
#define LV_PANNING 0x13
#define LV_VIEWPORT1_BG 0x14
#define LV_VIEWPORT2_BG 0x15
#define LV_VIEWPORT3_BG 0x16
#define LV_BLINK_COLOR 0x17
#define LV_BLINK_CODE 0x18
#define LV_GR_CURSOR_ROTATION 0x19
#define LV_GR_CURSOR_COLOR 0x1A
#define LV_GR_CURSOR_CONTROL 0x1B
#define LV_COMMAND 0x1C
#define LV_VP_BORDER_LINE 0x1D
#define LV_SYNC_POLARITY 0x1F
#define LV_CURSOR_CODE_0 0x20
#define LV_GRID_COLOR_0 0x34
#define LV_GRID_COLOR_1 0x35
#define LV_GRID_COLOR_2 0x36
#define LV_GRID_COLOR_3 0x37
#define LV_ATTRIBUTE_CNTL 0x38
#define LV_CURSOR_COLOR 0x3A
#define LV_CURSOR_CONTROL 0x3B
#define LV_RAS_STATUS_VIDEO 0x3C
#define LV_PAS_STATUS_CNTRL 0x3D
#define LV_IDENTIFICATION 0x3E
#define LV_OUTPUT 0x3E
#define LV_COMPATIBILITY 0x3F
#define LG_INDEX 0x3EA
#define LG_DATA 0x3EB
#define LG_SET_RESETJ 0x00
#define LG_ENABLE_SRJ 0x01
#define LG_COLOR_COMPAREJ 0x02
#define LG_DATA_ROTATION 0x03
#define LG_READ_MAP_SELECT 0x04
#define LG_MODE 0x05
#define LG_COMPLEMENT 0x06
#define LG_COLOR_DONT_CARE 0x07
#define LG_BIT_MASK_LOW 0x08
#define LG_BIT_MASK_HIGH 0x09
#define LG_MAP_MASKJ 0x0A
#define LG_COMMAND 0x0B
#define LG_SET_RESET_2 0x10
#ifndef RELEASE_BUILD
#define ENABLE_DA2_LOG 1
#endif
#ifdef ENABLE_DA2_LOG
// # define ENABLE_DA2_DEBUGBLT 1
// # define ENABLE_DA2_DEBUGVRAM 1
// # define ENABLE_DA2_DEBUGFULLSCREEN 1
// # define ENABLE_DA2_DEBUGMONWAIT 1
int da2_do_log = ENABLE_DA2_LOG;
static void
da2_log(const char *fmt, ...)
{
va_list ap;
if (da2_do_log) {
va_start(ap, fmt);
pclog_ex(fmt, ap);
va_end(ap);
}
}
#else
# define da2_log(fmt, ...)
#endif
#ifdef ENABLE_DA2_DEBUGBLT
# define da2_bltlog da2_log
#else
# define da2_bltlog(fmt, ...)
#endif
typedef struct da2_t {
// mem_mapping_t vmapping;
mem_mapping_t cmapping;
// uint8_t crtcreg;
uint8_t ioctl[16];
uint8_t fctl[32];
uint16_t crtc[128];
uint8_t gdcreg[64];
uint8_t reg3ee[16];
int gdcaddr;
uint8_t attrc[0x40];
int attraddr, attrff;
int attr_palette_enable;
// uint8_t seqregs[64];
int outflipflop;
int inflipflop;
int iolatch;
int ioctladdr;
int fctladdr;
int crtcaddr;
uint32_t decode_mask;
uint32_t vram_max;
uint32_t gdcla[8];
uint32_t gdcinput[8];
uint32_t gdcsrc[8];
uint32_t debug_vramold[8];
uint8_t dac_mask, dac_status;
int dac_read, dac_write, dac_pos;
int dac_r, dac_g;
uint8_t cgastat;
uint8_t plane_mask;
int fb_only;
int fast;
uint8_t colourcompare, colournocare;
int readmode, writemode, readplane;
uint8_t writemask;
uint32_t charseta, charsetb;
uint8_t egapal[16];
uint32_t pallook[512];
PALETTE vgapal;
int vtotal, dispend, vsyncstart, split, vblankstart;
int hdisp, hdisp_old, htotal, hdisp_time, rowoffset;
int lowres, interlace;
int rowcount;
double clock;
uint32_t ma_latch, ca_adj;
uint64_t dispontime, dispofftime;
pc_timer_t timer;
uint64_t da2const;
int dispon;
int hdisp_on;
uint32_t ma, maback, ca;
int vc;
int sc;
int linepos, vslines, linecountff, oddeven;
int con, cursoron, blink, blinkconf;
int scrollcache;
int char_width;
int firstline, lastline;
int firstline_draw, lastline_draw;
int displine;
/* Attribute Buffer E0000-E0FFFh (4 KB) */
uint8_t *cram;
/* (cram size - 1) >> 3 = 0xFFF */
// uint32_t cram_display_mask;
/* APA Buffer A0000-BFFFFh (128 KB) */
uint8_t *vram;
/* xxh */
uint8_t *changedvram;
/* (vram size - 1) >> 3 = 0x1FFFF */
uint32_t vram_display_mask;
int fullchange;
void (*render)(struct da2_t *da2);
/*If set then another device is driving the monitor output and the SVGA
card should not attempt to display anything */
int override;
/* end VGA compatible regs*/
struct
{
int enable;
mem_mapping_t mapping;
uint8_t ram[DA2_SIZE_GAIJIRAM];
uint8_t *font;
int charset;
} mmio;
struct {
int bitshift_destr;
int raster_op;
uint8_t payload[DA2_BLT_MEMSIZE];
int payload_addr;
int32_t reg[DA2_BLT_REGSIZE]; // must be signed int
#ifdef ENABLE_DA2_DEBUGBLT
int32_t *debug_reg; // for debug
int debug_reg_ip; // for debug
int debug_exesteps;
#endif
pc_timer_t timer;
int64_t timerspeed;
int exec;
int indata;
int32_t destaddr;
int32_t srcaddr;
int16_t size_x;
int16_t tile_w;
int16_t size_y;
int16_t dest_x;
int16_t dest_y;
int16_t destpitch;
int16_t srcpitch;
int32_t fcolor;
int32_t maskl, maskr;
int32_t count;
int32_t d;
int octdir;
int x, y, wx1, wx2, wy1, wy2;
} bitblt;
#ifdef ENABLE_DA2_DEBUGVRAM
FILE *mmdbg_fp;
FILE *mmrdbg_fp;
uint32_t mmdbg_vidaddr;
uint32_t mmrdbg_vidaddr;
#endif
uint8_t pos_regs[8];
svga_t *mb_vga;
uint8_t monitorid;
int old_pos2;
} da2_t;
void da2_recalctimings(da2_t *da2);
static void da2_mmio_gc_writeW(uint32_t addr, uint16_t val, void *p);
void da2_bitblt_exec(void *p);
void da2_updatevidselector(da2_t *da2);
void da2_reset_ioctl(da2_t *da2);
static void da2_reset(void *priv);
typedef union {
uint32_t d;
uint8_t b[4];
} DA2_VidSeq32;
typedef struct {
uint32_t p8[8];
} pixel32;
/* safety read for internal functions */
uint32_t
DA2_vram_r(uint32_t addr, da2_t *da2)
{
if (addr & ~DA2_MASK_VRAM)
return DA2_INVALIDACCESS32;
return da2->vram[addr];
}
/* safety write for internal functions */
void
DA2_vram_w(uint32_t addr, uint8_t val, da2_t *da2)
{
if (addr & ~DA2_MASK_VRAM)
return;
da2->vram[addr] = val;
return;
}
/* write pixel data with rop (Note: bitmask must be in big endian) */
void
DA2_WritePlaneDataWithBitmask(uint32_t destaddr, const uint16_t mask, pixel32 *srcpx, da2_t *da2)
{
uint32_t writepx[8];
destaddr &= 0xfffffffe; /* align to word address to work bit shift correctly */
// da2_log("DA2_WPDWB addr %x mask %x rop %x shift %d\n", destaddr, mask, da2->bitblt.raster_op, da2->bitblt.bitshift_destr);
da2->changedvram[(DA2_MASK_VRAMPLANE & destaddr) >> 9] = changeframecount;
destaddr <<= 3;
/* read destination data with big endian order */
for (int i = 0; i < 8; i++)
writepx[i] = DA2_vram_r((destaddr + 24) | i, da2)
| (DA2_vram_r((destaddr + 16) | i, da2) << 8)
| (DA2_vram_r((destaddr + 8) | i, da2) << 16)
| (DA2_vram_r((destaddr + 0) | i, da2) << 24);
DA2_VidSeq32 mask32in;
mask32in.d = (uint32_t) mask;
DA2_VidSeq32 mask32;
mask32.b[3] = mask32in.b[0];
mask32.b[2] = mask32in.b[1];
mask32.d &= 0xffff0000;
for (int i = 0; i < 8; i++) {
if (da2->bitblt.bitshift_destr > 0)
srcpx->p8[i] <<= 16 - da2->bitblt.bitshift_destr;
if (da2->bitblt.raster_op & 0x2010) /* NOT Src or NOT Pattern */
srcpx->p8[i] = ~srcpx->p8[i] & mask32.d;
if (da2->bitblt.raster_op & 0x20) /* Dest NOT */
writepx[i] = (~writepx[i] & mask32.d) | (writepx[i] & ~mask32.d);
switch (da2->bitblt.raster_op & 0x03) {
case 0x00: /* None */
writepx[i] &= ~mask32.d;
writepx[i] |= srcpx->p8[i] & mask32.d;
break;
case 0x01: /* AND */
writepx[i] &= srcpx->p8[i] | ~mask32.d;
break;
case 0x02: /* OR */
writepx[i] |= srcpx->p8[i] & mask32.d;
break;
case 0x03: /* XOR */
writepx[i] ^= srcpx->p8[i] & mask32.d;
break;
}
}
for (int i = 0; i < 8; i++) {
DA2_vram_w(destaddr | i, (writepx[i] >> 24) & 0xff, da2);
DA2_vram_w((destaddr + 8) | i, (writepx[i] >> 16) & 0xff, da2);
}
}
void
DA2_DrawColorWithBitmask(uint32_t destaddr, uint8_t color, uint16_t mask, da2_t *da2)
{
pixel32 srcpx;
/* fill data with input color */
for (int i = 0; i < 8; i++)
srcpx.p8[i] = (color & (1 << i)) ? 0xffffffff : 0; /* read in word */
DA2_WritePlaneDataWithBitmask(destaddr, mask, &srcpx, da2);
}
/*
Param Desc
01 Color
03 Bit Shift
04 Select plane?
05 Dir(1000h or 1100h) + Command?(40 or 48)
08 Mask Left
09 Mask Right
0A Plane Mask?
0B ROP
2000 NOT Source
200 Source / Pattern
20 NOT Dest
10 NOT Pattern
8 ?
0-3 Bit op (0 None, 1 AND, 2 OR, 3 XOR)
0D
20 Exec (1) or Exec without reset regs? (21h)
21 ?
22 ?
23 Tile W
28 Tile H
29 Dest Addr
2A Src Addr
2B Tile Addr
33 Size W
35 Size H
*/
void
DA2_CopyPlaneDataWithBitmask(uint32_t srcaddr, uint32_t destaddr, uint16_t mask, da2_t *da2)
{
pixel32 srcpx;
srcaddr &= 0xfffffffe;
srcaddr <<= 3;
for (int i = 0; i < 8; i++)
srcpx.p8[i] = DA2_vram_r((srcaddr + 24) | i, da2)
| (DA2_vram_r((srcaddr + 16) | i, da2) << 8)
| (DA2_vram_r((srcaddr + 8) | i, da2) << 16)
| (DA2_vram_r((srcaddr + 0) | i, da2) << 24);
DA2_WritePlaneDataWithBitmask(destaddr, mask, &srcpx, da2);
}
void
DA2_PutcharWithBitmask(uint32_t srcaddr, uint32_t destaddr, uint16_t mask, da2_t *da2)
{
pixel32 srcpx;
if (srcaddr >= DA2_FONTROM_SIZE) {
da2_log("DA2 Putchar Addr Error %x\n", srcaddr);
return;
}
for (int i = 0; i < 8; i++)
srcpx.p8[i] = ((uint32_t) da2->mmio.font[srcaddr] << 24)
| ((uint32_t) da2->mmio.font[srcaddr + 1] << 16)
| ((uint32_t) da2->mmio.font[srcaddr + 2] << 8)
| ((uint32_t) da2->mmio.font[srcaddr + 3] << 0);
DA2_WritePlaneDataWithBitmask(destaddr, mask, &srcpx, da2);
}
#ifdef ENABLE_DA2_DEBUGBLT
uint8_t
pixel1tohex(uint32_t addr, int index, da2_t *da2)
{
uint8_t pixeldata = 0;
for (int j = 0; j < 8; j++) {
if (DA2_vram_r(((addr << 3) | j) & (1 << (7 - index)), da2))
pixeldata++;
}
return pixeldata;
}
void
print_pixelbyte(uint32_t addr, da2_t *da2)
{
for (int i = 0; i < 8; i++) {
pclog("%X", pixel1tohex(addr, i, da2));
}
}
void
print_bytetobin(uint8_t b)
{
for (int i = 0; i < 8; i++) {
if (b & 0x80)
pclog("1");
else
pclog("0");
b <<= 1;
}
}
/* Convert internal char code to Shift JIS code */
inline int
isKanji1(uint8_t chr)
{
return (chr >= 0x81 && chr <= 0x9f) || (chr >= 0xe0 && chr <= 0xfc);
}
inline int
isKanji2(uint8_t chr)
{
return (chr >= 0x40 && chr <= 0x7e) || (chr >= 0x80 && chr <= 0xfc);
}
uint16_t
IBMJtoSJIS(uint16_t knj)
{
if (knj < 0x100)
return 0xffff;
knj -= 0x100;
if (knj <= 0x1f7d)
; /* do nothing */
else if (knj >= 0xb700 && knj <= 0xb75f) {
knj -= 0x90ec;
} else if (knj >= 0xb3f0 && knj <= 0xb67f) {
knj -= 0x906c;
} else if (knj >= 0x8000 && knj <= 0x8183) {
knj -= 0x5524;
} else
return 0xffff;
uint32_t knj1 = knj / 0xBC;
uint32_t knj2 = knj - (knj1 * 0xBC);
knj1 += 0x81;
if (knj1 > 0x9F)
knj1 += 0x40;
knj2 += 0x40;
if (knj2 > 0x7E)
knj2++;
// if (!isKanji1(knj1)) return 0xffff;
// if (!isKanji2(knj2)) return 0xffff;
knj = knj1 << 8;
knj |= knj2;
return knj;
}
#endif
void
da2_bitblt_load(da2_t *da2)
{
uint32_t value32;
uint64_t value64;
#ifdef ENABLE_DA2_DEBUGBLT
da2_log("bltload: loading params\n");
da2_log("BitBlt memory:\n");
if (da2->bitblt.payload[0] != 0)
for (int j = 0; j < DA2_BLT_MEMSIZE / 8; j++)
{
int i = j * 8;
da2_log("%02x %02x %02x %02x %02x %02x %02x %02x \n", da2->bitblt.payload[i], da2->bitblt.payload[i + 1], da2->bitblt.payload[i + 2], da2->bitblt.payload[i + 3],
da2->bitblt.payload[i + 4], da2->bitblt.payload[i + 5], da2->bitblt.payload[i + 6], da2->bitblt.payload[i + 7]);
}
#endif
int i = 0;
while (i < da2->bitblt.payload_addr) {
if (da2->bitblt.reg[0x20] & 0x1)
break;
switch (da2->bitblt.payload[i]) {
case 0x88:
case 0x89:
case 0x95:
value32 = da2->bitblt.payload[i + 3];
value32 <<= 8;
value32 |= da2->bitblt.payload[i + 2];
da2_bltlog("[%02x] %02x: %04x (%d)\n", da2->bitblt.payload[i], da2->bitblt.payload[i + 1], value32, value32);
da2->bitblt.reg[da2->bitblt.payload[i + 1]] = value32;
i += 3;
break;
case 0x91:
value32 = da2->bitblt.payload[i + 5];
value32 <<= 8;
value32 |= da2->bitblt.payload[i + 4];
value32 <<= 8;
value32 |= da2->bitblt.payload[i + 3];
value32 <<= 8;
value32 |= da2->bitblt.payload[i + 2];
da2_bltlog("[%02x] %02x: %08x (%d)\n", da2->bitblt.payload[i], da2->bitblt.payload[i + 1], value32, value32);
da2->bitblt.reg[da2->bitblt.payload[i + 1]] = value32;
i += 5;
break;
case 0x99:
value64 = da2->bitblt.payload[i + 7];
value64 <<= 8;
value64 = da2->bitblt.payload[i + 6];
value64 <<= 8;
value64 = da2->bitblt.payload[i + 5];
value64 <<= 8;
value64 |= da2->bitblt.payload[i + 4];
value64 <<= 8;
value64 |= da2->bitblt.payload[i + 3];
value64 <<= 8;
value64 |= da2->bitblt.payload[i + 2];
da2_bltlog("[%02x] %02x: %02x %02x %02x %02x %02x %02x\n", da2->bitblt.payload[i], da2->bitblt.payload[i + 1], da2->bitblt.payload[i + 2], da2->bitblt.payload[i + 3],
da2->bitblt.payload[i + 4], da2->bitblt.payload[i + 5], da2->bitblt.payload[i + 6], da2->bitblt.payload[i + 7]);
da2->bitblt.reg[da2->bitblt.payload[i + 1]] = value64;
i += 7;
break;
case 0x00:
break;
default:
da2_log("bltload: Unknown PreOP!\n");
break;
}
i++;
}
da2->bitblt.exec = DA2_BLT_CIDLE;
/* clear payload memory */
memset(da2->bitblt.payload, 0x00, DA2_BLT_MEMSIZE);
da2->bitblt.payload_addr = 0;
/* [89] 20: 0001 (1) then execute payload */
if (da2->bitblt.reg[0x20] & 0x1) {
#ifdef ENABLE_DA2_DEBUGBLT
for (i = 0; i < DA2_DEBUG_BLTLOG_SIZE; i++) {
da2->bitblt.debug_reg[DA2_DEBUG_BLTLOG_SIZE * da2->bitblt.debug_reg_ip + i] = da2->bitblt.reg[i];
}
da2->bitblt.debug_reg[DA2_DEBUG_BLTLOG_SIZE * (da2->bitblt.debug_reg_ip + 1) - 1] = 0;
da2->bitblt.debug_reg_ip++;
if ((DA2_DEBUG_BLTLOG_SIZE * da2->bitblt.debug_reg_ip) >= DA2_DEBUG_BLTLOG_MAX)
da2->bitblt.debug_reg_ip = 0;
da2->bitblt.debug_exesteps = 0;
#endif
da2_log("bltload_exec: %x, rop: %x CS:PC=%4x:%4x\n", da2->bitblt.reg[0x5], da2->bitblt.reg[0x0b], CS, cpu_state.pc);
da2->bitblt.bitshift_destr = ((da2->bitblt.reg[0x3] >> 4) & 0x0f); /* set bit shift */
da2->bitblt.raster_op = da2->bitblt.reg[0x0b];
da2->bitblt.destaddr = da2->bitblt.reg[0x29];
da2->bitblt.size_x = da2->bitblt.reg[0x33];
da2->bitblt.size_y = da2->bitblt.reg[0x35];
da2->bitblt.destpitch = da2->bitblt.reg[0x21];
da2->bitblt.srcpitch = da2->bitblt.reg[0x22];
if (da2->bitblt.reg[0x2F] == 0x90) /* destaddr -= 2, length += 1; */
{
da2->bitblt.destaddr -= 2;
da2->bitblt.size_x += 1;
da2->bitblt.destpitch -= 2;
da2->bitblt.srcpitch -= 2;
}
da2->bitblt.fcolor = da2->bitblt.reg[0x0];
da2->bitblt.maskl = da2->bitblt.reg[0x8];
da2->bitblt.maskr = da2->bitblt.reg[0x9];
da2->bitblt.x = 0;
da2->bitblt.y = 0;
da2->bitblt.exec = DA2_BLT_CDONE;
/* Put DBCS char used by OS/2 (i'm not sure what the condition is) */
if (da2->bitblt.reg[0x10] == 0xbc04) {
da2->bitblt.exec = DA2_BLT_CPUTCHAR;
/* Todo: addressing */
// if (da2->bitblt.reg[0x2F] == 0x90) /* destaddr -= 2, length += 1; */
//{
// da2->bitblt.destaddr += 2;
// da2->bitblt.size_x -= 1;
// da2->bitblt.destpitch += 2;
// da2->bitblt.srcpitch += 2;
// }
da2->bitblt.srcaddr = da2->bitblt.reg[0x12] * 72 + 2;
da2->bitblt.destaddr += 2;
da2->bitblt.srcpitch = 0;
da2->bitblt.bitshift_destr += 1;
#ifdef ENABLE_DA2_DEBUGBLT
uint32_t sjis_h = IBMJtoSJIS(da2->bitblt.reg[0x12]) >> 8;
uint32_t sjis_l = IBMJtoSJIS(da2->bitblt.reg[0x12]) & 0xff;
da2_log("put char src=%x, dest=%x, x=%d, y=%d, w=%d, h=%d, c=%c%c\n",
da2->bitblt.srcaddr, da2->bitblt.destaddr,
da2->bitblt.reg[0x29] % (da2->rowoffset * 2), da2->bitblt.reg[0x29] / (da2->rowoffset * 2),
da2->bitblt.size_x, da2->bitblt.size_y, sjis_h, sjis_l);
#endif
}
/* Put SBCS char used by OS/2 */
else if (da2->bitblt.reg[0x10] == 0x0004 || da2->bitblt.reg[0x10] == 0x0E04) {
da2->bitblt.exec = DA2_BLT_CPUTCHAR;
da2->bitblt.srcaddr = da2->bitblt.reg[0x12] * 64 + 2 + DA2_FONTROM_BASESBCS;
da2->bitblt.destaddr += 2;
da2->bitblt.srcpitch = 0;
da2->bitblt.bitshift_destr += 1;
#ifdef ENABLE_DA2_DEBUGBLT
uint32_t sjis_h = IBMJtoSJIS(da2->bitblt.reg[0x12]) >> 8;
uint32_t sjis_l = IBMJtoSJIS(da2->bitblt.reg[0x12]) & 0xff;
da2_log("put char src=%x, dest=%x, x=%d, y=%d, w=%d, h=%d, c=%c%c\n",
da2->bitblt.srcaddr, da2->bitblt.destaddr,
da2->bitblt.reg[0x29] % (da2->rowoffset * 2), da2->bitblt.reg[0x29] / (da2->rowoffset * 2),
da2->bitblt.size_x, da2->bitblt.size_y, sjis_h, sjis_l);
#endif
}
/* Draw a line */
else if (da2->bitblt.reg[0x5] == 0x43) {
da2->bitblt.exec = DA2_BLT_CLINE;
da2->bitblt.dest_x = (da2->bitblt.reg[0x32] & 0xffff);
da2->bitblt.dest_y = (da2->bitblt.reg[0x34] & 0xffff);
da2->bitblt.wx1 = (da2->bitblt.reg[0x32]) >> 16;
da2->bitblt.wx2 = (da2->bitblt.reg[0x33]) >> 16;
da2->bitblt.wy1 = (da2->bitblt.reg[0x34]) >> 16;
da2->bitblt.wy2 = (da2->bitblt.reg[0x35]) >> 16;
da2->bitblt.size_x = abs((int16_t)(da2->bitblt.reg[0x33] & 0xffff) - da2->bitblt.dest_x);
da2->bitblt.size_y = abs((int16_t)(da2->bitblt.reg[0x35] & 0xffff) - da2->bitblt.dest_y);
da2->bitblt.count = 0;
da2->bitblt.octdir = da2->bitblt.reg[0x2D];
da2->bitblt.bitshift_destr = 0;
if (da2->bitblt.octdir & 0x04) /* dX > dY */
da2->bitblt.d = 2 * da2->bitblt.size_y - da2->bitblt.size_x;
else
da2->bitblt.d = 2 * da2->bitblt.size_x - da2->bitblt.size_y;
da2->bitblt.x = da2->bitblt.dest_x;
da2->bitblt.y = da2->bitblt.dest_y;
da2_log("drawline x=%d, y=%d, dx=%d, dy=%d, oct=%dn",
da2->bitblt.dest_x, da2->bitblt.dest_y,
da2->bitblt.size_x, da2->bitblt.size_y, da2->bitblt.octdir);
da2_log(" x1=%d, x2=%d, y1=%d, y2=%d\n",
da2->bitblt.reg[0x32] & 0x7ff, da2->bitblt.reg[0x33] & 0x7ff,
da2->bitblt.reg[0x34] & 0x7ff, da2->bitblt.reg[0x35] & 0x7ff);
da2_log(" ux1=%d,ux2=%d,uy1=%d,uy2=%d\n",
(da2->bitblt.reg[0x32] >> 16) & 0x7ff, (da2->bitblt.reg[0x33] >> 16) & 0x7ff,
(da2->bitblt.reg[0x34] >> 16) & 0x7ff, (da2->bitblt.reg[0x35] >> 16) & 0x7ff);
}
/* Fill a rectangle (or draw a horizontal / vertical line) */
else if ((da2->bitblt.reg[0x5] & 0xfff0) == 0x40 && da2->bitblt.reg[0x3D] == 0) {
da2_log("fillrect x=%d, y=%d, w=%d, h=%d, c=%d, 2f=%x, rowcount=%x\n",
da2->bitblt.reg[0x29] % (da2->rowoffset * 2), da2->bitblt.reg[0x29] / (da2->rowoffset * 2),
da2->bitblt.size_x, da2->bitblt.size_y, da2->bitblt.reg[0x0], da2->bitblt.reg[0x2F], da2->rowoffset * 2);
da2->bitblt.exec = DA2_BLT_CFILLRECT;
da2->bitblt.destaddr += 2;
}
/* Tiling a rectangle ??(transfer tile data multiple times) os/2 only */
else if ((da2->bitblt.reg[0x5] & 0xfff0) == 0x0040 && da2->bitblt.reg[0x3D] == 0x40) {
da2->bitblt.exec = DA2_BLT_CFILLTILE;
da2->bitblt.destaddr += 2;
da2->bitblt.srcaddr = da2->bitblt.reg[0x2B];
da2->bitblt.tile_w = da2->bitblt.reg[0x28];
da2_log("copy tile src=%x, dest=%x, x1=%d, y1=%d, x2=%d, y2=%d, w=%d, h=%d\n",
da2->bitblt.srcaddr, da2->bitblt.destaddr,
da2->bitblt.reg[0x2B] % (da2->rowoffset * 2), da2->bitblt.reg[0x2B] / (da2->rowoffset * 2),
da2->bitblt.reg[0x29] % (da2->rowoffset * 2), da2->bitblt.reg[0x29] / (da2->rowoffset * 2),
da2->bitblt.size_x, da2->bitblt.size_y);
}
/* Tiling a rectangle (transfer tile data multiple times) */
else if ((da2->bitblt.reg[0x5] & 0xfff0) == 0x1040 && da2->bitblt.reg[0x3D] == 0x40) {
da2->bitblt.exec = DA2_BLT_CFILLTILE;
da2->bitblt.destaddr += 2;
da2->bitblt.srcaddr = da2->bitblt.reg[0x2B];
da2->bitblt.tile_w = da2->bitblt.reg[0x28];
da2_log("copy tile src=%x, dest=%x, x1=%d, y1=%d, x2=%d, y2=%d, w=%d, h=%d\n",
da2->bitblt.srcaddr, da2->bitblt.destaddr,
da2->bitblt.reg[0x2B] % (da2->rowoffset * 2), da2->bitblt.reg[0x2B] / (da2->rowoffset * 2),
da2->bitblt.reg[0x29] % (da2->rowoffset * 2), da2->bitblt.reg[0x29] / (da2->rowoffset * 2),
da2->bitblt.size_x, da2->bitblt.size_y);
}
/* Block copy */
else if ((da2->bitblt.reg[0x5] & 0xfff0) == 0x1040 && da2->bitblt.reg[0x3D] == 0x00) {
da2->bitblt.exec = DA2_BLT_CCOPYF;
da2->bitblt.srcaddr = da2->bitblt.reg[0x2A];
da2->bitblt.destaddr += 2;
da2_log("copy block src=%x, dest=%x, x1=%d, y1=%d, x2=%d, y2=%d, w=%d, h=%d\n",
da2->bitblt.srcaddr, da2->bitblt.destaddr,
da2->bitblt.reg[0x2A] % (da2->rowoffset * 2), da2->bitblt.reg[0x2A] / (da2->rowoffset * 2),
da2->bitblt.reg[0x29] % (da2->rowoffset * 2), da2->bitblt.reg[0x29] / (da2->rowoffset * 2),
da2->bitblt.size_x, da2->bitblt.size_y);
}
/* Block copy but reversed direction */
else if ((da2->bitblt.reg[0x5] & 0xfff0) == 0x1140 && da2->bitblt.reg[0x3D] == 0x00) {
da2->bitblt.exec = DA2_BLT_CCOPYR;
da2->bitblt.srcaddr = da2->bitblt.reg[0x2A];
da2->bitblt.destaddr -= 2;
da2->bitblt.srcaddr -= 2;
da2_log("copy blockR src=%x, dest=%x, x1=%d, y1=%d, x2=%d, y2=%d, w=%d, h=%d\n",
da2->bitblt.srcaddr, da2->bitblt.destaddr,
da2->bitblt.reg[0x2A] % (da2->rowoffset * 2), da2->bitblt.reg[0x2A] / (da2->rowoffset * 2),
da2->bitblt.reg[0x29] % (da2->rowoffset * 2), da2->bitblt.reg[0x29] / (da2->rowoffset * 2),
da2->bitblt.size_x, da2->bitblt.size_y);
// da2_log(" mask8=%x, mask9=%x\n", da2->bitblt.reg[0x8], da2->bitblt.reg[0x9]);
}
}
}
void
da2_bitblt_exec(void *p)
{
da2_t *da2 = (da2_t *) p;
// timer_set_delay_u64(&da2->bitblt.timer, da2->bitblt.timerspeed);
#ifdef ENABLE_DA2_DEBUGBLT
if(!(da2->bitblt.debug_exesteps & 0xff))
da2_log("bitblt_exec: %d %d\n", da2->bitblt.exec, da2->bitblt.debug_exesteps);
da2->bitblt.debug_exesteps++;
#endif
switch (da2->bitblt.exec) {
case DA2_BLT_CIDLE:
// timer_disable(&da2->bitblt.timer);
break;
case DA2_BLT_CLOAD:
da2_bitblt_load(da2);
da2->bitblt.indata = 0;
break;
case DA2_BLT_CLINE:
/* Draw a dot */
// outb(0x680, da2->bitblt.octdir);
da2_bltlog("point: %d %d %d %d %d\n", da2->bitblt.x, da2->bitblt.y, da2->bitblt.d, da2->bitblt.x, da2->bitblt.y);
int destaddr = da2->bitblt.y * (da2->rowoffset * 2) + da2->bitblt.x / 8;
int pixelmask = da2->bitblt.x % 16;
if (pixelmask >= 8)
pixelmask = (0x8000 >> (pixelmask - 8));
else
pixelmask = (0x80 >> pixelmask);
/* check the current position is inside the window */
if (da2->bitblt.x < da2->bitblt.wx1 || da2->bitblt.x > da2->bitblt.wx2
|| da2->bitblt.y < da2->bitblt.wy1 || da2->bitblt.y > da2->bitblt.wy2)
;
else
DA2_DrawColorWithBitmask(destaddr, da2->bitblt.fcolor, pixelmask, da2);
// da2_log("draw: %x %x %x\n", destaddr, da2->bitblt.fcolor, pixelmask);
da2->bitblt.count++;
/* calculate the next position with Bresenham's line algorithm */
if (da2->bitblt.octdir & 0x04) { /* dX > dY */
if (da2->bitblt.octdir & 0x02) {
da2->bitblt.x++;
} else {
da2->bitblt.x--;
}
if (da2->bitblt.d >= 0) {
da2->bitblt.d -= (2 * da2->bitblt.size_x);
if (da2->bitblt.octdir & 0x01) {
da2->bitblt.y++;
} else {
da2->bitblt.y--;
}
}
da2->bitblt.d += (2 * da2->bitblt.size_y);
if (da2->bitblt.count >= da2->bitblt.size_x)
da2->bitblt.exec = DA2_BLT_CDONE;
} else {
if (da2->bitblt.octdir & 0x01) {
da2->bitblt.y++;
} else {
da2->bitblt.y--;
}
if (da2->bitblt.d >= 0) {
da2->bitblt.d -= (2 * da2->bitblt.size_y);
if (da2->bitblt.octdir & 0x02) {
da2->bitblt.x++;
} else {
da2->bitblt.x--;
}
}
da2->bitblt.d += (2 * da2->bitblt.size_x);
if (da2->bitblt.count >= da2->bitblt.size_y)
da2->bitblt.exec = DA2_BLT_CDONE;
}
break;
case DA2_BLT_CFILLRECT:
// da2_log("%x %x %x\n", da2->bitblt.destaddr, da2->bitblt.x, da2->bitblt.y);
if (da2->bitblt.x >= da2->bitblt.size_x - 1) {
DA2_DrawColorWithBitmask(da2->bitblt.destaddr, da2->bitblt.fcolor, da2->bitblt.maskr, da2);
if (da2->bitblt.y >= da2->bitblt.size_y - 1) {
da2->bitblt.exec = DA2_BLT_CDONE;
}
da2->bitblt.x = 0;
da2->bitblt.y++;
da2->bitblt.destaddr += da2->bitblt.destpitch + 2;
} else if (da2->bitblt.x == 0) {
DA2_DrawColorWithBitmask(da2->bitblt.destaddr, da2->bitblt.fcolor, da2->bitblt.maskl, da2);
da2->bitblt.x++;
} else {
DA2_DrawColorWithBitmask(da2->bitblt.destaddr, da2->bitblt.fcolor, 0xffff, da2);
da2->bitblt.x++;
}
da2->bitblt.destaddr += 2;
break;
case DA2_BLT_CFILLTILE: {
int32_t tileaddr = da2->bitblt.srcaddr + (da2->bitblt.y % da2->bitblt.tile_w) * 2;
if (da2->bitblt.x >= da2->bitblt.size_x - 1) {
DA2_CopyPlaneDataWithBitmask(tileaddr, da2->bitblt.destaddr, da2->bitblt.maskr, da2);
if (da2->bitblt.y >= da2->bitblt.size_y - 1) {
da2->bitblt.exec = DA2_BLT_CDONE;
}
da2->bitblt.x = 0;
da2->bitblt.y++;
da2->bitblt.destaddr += da2->bitblt.destpitch + 2;
} else if (da2->bitblt.x == 0) {
DA2_CopyPlaneDataWithBitmask(tileaddr, da2->bitblt.destaddr, da2->bitblt.maskl, da2);
da2->bitblt.x++;
} else {
DA2_CopyPlaneDataWithBitmask(tileaddr, da2->bitblt.destaddr, 0xffff, da2);
da2->bitblt.x++;
}
da2->bitblt.destaddr += 2;
break;
} case DA2_BLT_CCOPYF:
if (da2->bitblt.x >= da2->bitblt.size_x - 1) {
DA2_CopyPlaneDataWithBitmask(da2->bitblt.srcaddr, da2->bitblt.destaddr, da2->bitblt.maskr, da2);
if (da2->bitblt.y >= da2->bitblt.size_y - 1) {
da2->bitblt.exec = DA2_BLT_CDONE;
}
da2->bitblt.x = 0;
da2->bitblt.y++;
da2->bitblt.destaddr += da2->bitblt.destpitch + 2;
da2->bitblt.srcaddr += da2->bitblt.srcpitch + 2;
} else if (da2->bitblt.x == 0) {
DA2_CopyPlaneDataWithBitmask(da2->bitblt.srcaddr, da2->bitblt.destaddr, da2->bitblt.maskl, da2);
da2->bitblt.x++;
} else {
DA2_CopyPlaneDataWithBitmask(da2->bitblt.srcaddr, da2->bitblt.destaddr, 0xffff, da2);
da2->bitblt.x++;
}
da2->bitblt.destaddr += 2;
da2->bitblt.srcaddr += 2;
break;
case DA2_BLT_CCOPYR:
if (da2->bitblt.x >= da2->bitblt.size_x - 1) {
DA2_CopyPlaneDataWithBitmask(da2->bitblt.srcaddr, da2->bitblt.destaddr, da2->bitblt.maskr, da2);
if (da2->bitblt.y >= da2->bitblt.size_y - 1) {
da2->bitblt.exec = DA2_BLT_CDONE;
}
da2->bitblt.x = 0;
da2->bitblt.y++;
da2->bitblt.destaddr -= da2->bitblt.destpitch;
da2->bitblt.srcaddr -= da2->bitblt.srcpitch;
da2->bitblt.destaddr -= 2;
da2->bitblt.srcaddr -= 2;
} else if (da2->bitblt.x == 0) {
DA2_CopyPlaneDataWithBitmask(da2->bitblt.srcaddr, da2->bitblt.destaddr, da2->bitblt.maskl, da2);
da2->bitblt.x++;
} else {
DA2_CopyPlaneDataWithBitmask(da2->bitblt.srcaddr, da2->bitblt.destaddr, 0xffff, da2);
da2->bitblt.x++;
}
da2->bitblt.destaddr -= 2;
da2->bitblt.srcaddr -= 2;
break;
case DA2_BLT_CPUTCHAR: /* used in OS/2 J1.3 wo ROM patch. TODO: still not work */
// da2->bitblt.y += 2;
da2->bitblt.destaddr = da2->bitblt.reg[0x29] + da2->bitblt.x * 2 + da2->bitblt.y * 130 + 0 + 260;
// pclog("scr %x dest %x :", da2->bitblt.srcaddr, da2->bitblt.destaddr);
// da2->bitblt.srcaddr += 2;
if (da2->bitblt.reg[0x12] < 0x100)
da2->bitblt.srcaddr = DA2_FONTROM_BASESBCS + da2->bitblt.reg[0x12] * 64 + (da2->bitblt.x * 2) + (da2->bitblt.y * 2) - 2;
else
da2->bitblt.srcaddr = da2->bitblt.reg[0x12] * 72 + (da2->bitblt.x * 2) + (da2->bitblt.y * 3) - 2;
// print_bytetobin(da2->mmio.font[da2->bitblt.srcaddr + 2]);
// print_bytetobin(da2->mmio.font[da2->bitblt.srcaddr + 3]);
// pclog("\n");
if (da2->bitblt.x >= da2->bitblt.size_x - 1) {
// if (1) {
DA2_PutcharWithBitmask(da2->bitblt.srcaddr, da2->bitblt.destaddr, da2->bitblt.maskr, da2);
if (da2->bitblt.y >= da2->bitblt.size_y - 3) {
da2->bitblt.exec = DA2_BLT_CDONE;
}
da2->bitblt.x = 0;
da2->bitblt.y++;
da2->bitblt.destaddr += 130;
// da2->bitblt.destaddr += da2->bitblt.destpitch + 2;
// da2->bitblt.srcaddr += -1;
} else if (da2->bitblt.x == 0) {
DA2_PutcharWithBitmask(da2->bitblt.srcaddr, da2->bitblt.destaddr, da2->bitblt.maskl, da2);
da2->bitblt.x++;
// da2->bitblt.x++;
} else {
DA2_PutcharWithBitmask(da2->bitblt.srcaddr, da2->bitblt.destaddr, 0xffff, da2);
da2->bitblt.x++;
// da2->bitblt.x++;
}
// da2->bitblt.destaddr = da2->bitblt.reg[0x29] + da2->bitblt.x + da2->bitblt.y * 130 + 2;
////da2->bitblt.srcaddr += 2;
// da2->bitblt.srcaddr = da2->bitblt.reg[0x12] * 72 + (da2->bitblt.x * 2 ) + (da2->bitblt.y * 3) + 2;
break;
case DA2_BLT_CDONE:
if (!(da2->bitblt.reg[0x20] & 0x20)) {
/* initialize regs and set magic value for debug dump */
for (int i = 0; i < DA2_BLT_REGSIZE; i++) {
if (da2->bitblt.reg[i] != DA2_DEBUG_BLT_NEVERUSED)
da2->bitblt.reg[i] = DA2_DEBUG_BLT_USEDRESET;
}
} else /* without init regs */
da2->bitblt.reg[0x20] = 0; /* need to stop execution */
if (da2->bitblt.indata)
da2->bitblt.exec = DA2_BLT_CLOAD;
else
da2->bitblt.exec = DA2_BLT_CIDLE;
break;
}
}
void
da2_bitblt_dopayload(void *priv)
{
da2_t *da2 = (da2_t *) priv;
timer_set_delay_u64(&da2->bitblt.timer, da2->bitblt.timerspeed);
if (da2->bitblt.exec != DA2_BLT_CIDLE)
da2_bitblt_exec(da2);
else if (da2->bitblt.indata && !(da2->ioctl[LS_MMIO] & 0x10) && (da2->bitblt.exec == DA2_BLT_CIDLE)) {
da2->bitblt.exec = DA2_BLT_CLOAD;
da2_bitblt_exec(da2);
} else {
// timer_disable(&da2->bitblt.timer);
}
}
void
da2_out(uint16_t addr, uint16_t val, void *p)
{
da2_t *da2 = (da2_t *) p;
int oldval;
/*
3E0 3E1 Sequencer Registers (undoc)
3E2 3E3 Font Registers (undoc)
3E4 3E5 CRT Control Registers (undoc)
3E8 3E9 Attribute Controller Registers (undoc)
3EA 3EB 3EC Graphics Contoller Registers
*/
switch (addr) {
case 0x3c6: /* PEL Mask */
da2->dac_mask = val;
break;
case 0x3C7: /* Read Address */
da2->dac_read = val;
da2->dac_pos = 0;
break;
case 0x3C8: /* Write Address */
da2->dac_write = val;
da2->dac_read = val - 1;
da2->dac_pos = 0;
break;
case 0x3C9: /* Data */
// da2_log("DA2 Out addr %03X idx %d:%d val %02X %04X:%04X esdi %04X:%04X\n", addr, da2->dac_write, da2->dac_pos, val, cs >> 4, cpu_state.pc, ES, DI);
da2->dac_status = 0;
da2->fullchange = changeframecount;
switch (da2->dac_pos) {
case 0:
da2->dac_r = val;
da2->dac_pos++;
break;
case 1:
da2->dac_g = val;
da2->dac_pos++;
break;
case 2:
da2->vgapal[da2->dac_write].r = da2->dac_r;
da2->vgapal[da2->dac_write].g = da2->dac_g;
da2->vgapal[da2->dac_write].b = val;
// if (da2->ramdac_type == RAMDAC_8BIT)
// da2->pallook[da2->dac_write] = makecol32(da2->vgapal[da2->dac_write].r, da2->vgapal[da2->dac_write].g, da2->vgapal[da2->dac_write].b);
// else
da2->pallook[da2->dac_write] = makecol32((da2->vgapal[da2->dac_write].r & 0x3f) * 4, (da2->vgapal[da2->dac_write].g & 0x3f) * 4, (da2->vgapal[da2->dac_write].b & 0x3f) * 4);
da2->dac_pos = 0;
da2->dac_write = (da2->dac_write + 1) & 255;
break;
}
break;
case LS_INDEX:
da2->ioctladdr = val;
break;
case LS_DATA:
// da2_log("DA2 Out addr %03X idx %02X val %02X %04X:%04X\n", addr, da2->ioctladdr, val, cs >> 4, cpu_state.pc);
if (da2->ioctladdr > 0xf)
return;
if (da2->ioctl[da2->ioctladdr & 15] != val)
da2_log("ioctl changed %x: %x -> %x %04X:%04X\n", da2->ioctladdr & 15, da2->ioctl[da2->ioctladdr & 15], val, cs >> 4, cpu_state.pc);
oldval = da2->ioctl[da2->ioctladdr];
da2->ioctl[da2->ioctladdr] = val;
if (oldval != val) {
if (da2->ioctladdr == LS_RESET && val & 0x01) /* Reset register */
da2_reset_ioctl(da2);
else if (da2->ioctladdr == LS_MODE && ((oldval ^ val) & 0x03)) { /* Mode register */
da2->fullchange = changeframecount;
da2_recalctimings(da2);
da2_updatevidselector(da2);
}
}
break;
case LF_INDEX:
da2->fctladdr = val;
break;
case LF_DATA:
// da2_log("DA2 Out addr %03X idx %02X val %02X %04X:%04X\n", addr, da2->fctladdr, val, cs >> 4, cpu_state.pc);
if (da2->fctladdr > 0x1f)
return;
if (da2->fctl[da2->fctladdr & 0x1f] != val)
da2_log("fctl changed %x: %x -> %x %04X:%04X\n", da2->fctladdr & 0x1f, da2->fctl[da2->fctladdr & 0x1f], val, cs >> 4, cpu_state.pc);
oldval = da2->fctl[da2->fctladdr];
da2->fctl[da2->fctladdr] = val;
if (da2->fctladdr == 0 && oldval != val) {
da2->fullchange = changeframecount;
da2_recalctimings(da2);
}
break;
case LC_INDEX:
da2->crtcaddr = val;
break;
case LC_DATA:
if (da2->crtcaddr > 0x1f)
return;
// if (!(da2->crtcaddr == LC_CURSOR_LOC_HIGH || da2->crtcaddr == LC_CURSOR_LOC_LOWJ))
// da2_log("DA2 Out addr %03X idx %02X val %02X %04X:%04X\n", addr, da2->crtcaddr, val, cs >> 4, cpu_state.pc);
if (!(da2->crtc[da2->crtcaddr] ^ val))
return;
switch (da2->crtcaddr) {
case LC_CRTC_OVERFLOW:
// return;
break;
case LC_MAXIMUM_SCAN_LINE:
if (!(da2->ioctl[LS_MODE] & 0x01)) /* 16 or 256 color graphics mode */
val = 0;
break;
case LC_START_ADDRESS_HIGH:
// if (da2->crtc[0x1c] & 0x40) return;
break;
case LC_VERTICAL_TOTALJ: /* Vertical Total */
case LC_VERTICAL_SYNC_START: /* Vertical Retrace Start Register */
case LC_V_DISPLAY_ENABLE_END: /* Vertical Display End Register */
case LC_START_VERTICAL_BLANK: /* Start Vertical Blank Register */
#ifdef ENABLE_DA2_DEBUGFULLSCREEN
val = 0x400; /* for debugging bitblt in Win 3.x */
#endif
break;
case LC_VIEWPORT_SELECT: /* ViewPort Select? */
// return;
break;
case LC_VIEWPORT_NUMBER: /* Compatibility? */
break;
}
da2->crtc[da2->crtcaddr] = val;
switch (da2->crtcaddr) {
case LC_H_DISPLAY_ENABLE_END:
case LC_VERTICAL_TOTALJ:
case LC_MAXIMUM_SCAN_LINE:
case LC_START_ADDRESS_HIGH:
case LC_START_ADDRESS_LOW:
case LC_VERTICAL_SYNC_START:
case LC_V_DISPLAY_ENABLE_END:
case LC_START_VERTICAL_BLANK:
case LC_END_VERTICAL_BLANK:
case LC_VIEWPORT_PRIORITY:
da2->fullchange = changeframecount;
da2_recalctimings(da2);
break;
default:
break;
}
break;
case LV_PORT:
// da2_log("DA2 Out addr %03X val %02X ff %d %04X:%04X\n", addr, val, da2->attrff,cs >> 4, cpu_state.pc);
if (!da2->attrff) {
// da2->attraddr = val & 31;
da2->attraddr = val & 0x3f;
if ((val & 0x20) != (da2->attr_palette_enable & 0x20)) {
da2->fullchange = 3;
da2->attr_palette_enable = val & 0x20;
da2_recalctimings(da2);
}
// da2_log("set attraddr: %X\n", da2->attraddr);
} else {
if ((da2->attraddr == LV_PANNING) && (da2->attrc[LV_PANNING] != val))
da2->fullchange = changeframecount;
if (da2->attrc[da2->attraddr & 0x3f] != val)
da2_log("attr changed %x: %x -> %x\n", da2->attraddr & 0x3f, da2->attrc[da2->attraddr & 0x3f], val);
da2->attrc[da2->attraddr & 0x3f] = val;
// da2_log("set attrc %x: %x\n", da2->attraddr & 31, val);
if (da2->attraddr < 16)
da2->fullchange = changeframecount;
if (da2->attraddr == LV_MODE_CONTROL || da2->attraddr < 0x10) {
for (int c = 0; c < 16; c++) {
// if (da2->attrc[LV_MODE_CONTROL] & 0x80) da2->egapal[c] = (da2->attrc[c] & 0xf) | ((da2->attrc[0x14] & 0xf) << 4);
// else da2->egapal[c] = (da2->attrc[c] & 0x3f) | ((da2->attrc[0x14] & 0xc) << 4);
if (da2->attrc[LV_MODE_CONTROL] & 0x80)
da2->egapal[c] = da2->attrc[c] & 0xf;
else
da2->egapal[c] = da2->attrc[c] & 0x3f;
}
}
switch (da2->attraddr) {
case LV_COLOR_PLANE_ENAB:
if ((val & 0xff) != da2->plane_mask)
da2->fullchange = changeframecount;
da2->plane_mask = val & 0xff;
break;
case LV_CURSOR_CONTROL:
switch (val & 0x18) {
case 0x08: /* fast blink */
da2->blinkconf = 0x10;
break;
case 0x18: /* slow blink */
da2->blinkconf = 0x20;
break;
default: /* no blink */
da2->blinkconf = 0xff;
break;
}
break;
case LV_MODE_CONTROL:
case LV_ATTRIBUTE_CNTL:
case LV_COMPATIBILITY:
da2_recalctimings(da2);
break;
default:
break;
}
}
da2->attrff ^= 1;
break;
case 0x3E9:
/* VZ Editor's CURSOR.COM writes data via this port */
da2->attrc[da2->attraddr & 0x3f] = val;
break;
case LG_INDEX:
da2->gdcaddr = val;
break;
case LG_DATA:
// if(da2->gdcaddr != 8 && da2->gdcaddr != 9) da2_log("DA2 Out addr %03X idx %02X val %02X\n", addr, da2->gdcaddr, val);
// if(da2->gdcaddr != 8 && da2->gdcaddr != 9) da2_log("DA2 GCOut idx %X val %02X %04X:%04X esdi %04X:%04X\n", da2->gdcaddr, val, cs >> 4, cpu_state.pc, ES, DI);
switch (da2->gdcaddr & 0x1f) {
case LG_READ_MAP_SELECT:
da2->readplane = val & 0x7;
break;
case LG_MODE:
da2->writemode = val & 3;
break;
case LG_MAP_MASKJ:
da2->writemask = val & 0xff;
break;
case LG_COMMAND:
break;
case LG_SET_RESET_2:
da2_log("!!!DA2 GC Out addr %03X idx 10 val %02X\n", addr, val);
return;
}
da2->gdcreg[da2->gdcaddr & 0x0f] = val & 0xff;
break;
// case 0x3ed: /* used by Windows 3.1 display driver */
// da2->gdcreg[5] = val & 0xff;
// break;
default:
da2_log("DA2? Out addr %03X val %02X\n", addr, val);
break;
}
}
uint16_t
da2_in(uint16_t addr, void *p)
{
da2_t *da2 = (da2_t *) p;
uint16_t temp = 0xff;
switch (addr) {
case 0x3c3:
temp = 0;
break;
case 0x3c6:
temp = da2->dac_mask;
break;
case 0x3c7:
temp = da2->dac_status;
break;
case 0x3c8:
temp = da2->dac_write;
break;
case 0x3c9:
da2->dac_status = 3;
switch (da2->dac_pos) {
case 0:
da2->dac_pos++;
temp = da2->vgapal[da2->dac_read].r & 0x3f;
break;
case 1:
da2->dac_pos++;
temp = da2->vgapal[da2->dac_read].g & 0x3f;
break;
case 2:
da2->dac_pos = 0;
da2->dac_read = (da2->dac_read + 1) & 255;
temp = da2->vgapal[(da2->dac_read - 1) & 255].b & 0x3f;
break;
}
break;
case LS_INDEX:
temp = da2->ioctladdr;
break;
case LS_DATA:
// da2->ioctl[3] = 0x80; /* 3E1h:3 bit 7 color monitor, bit 3 busy(GC) bit 0 busy (IO?) */
if (da2->ioctladdr > 0xf)
return DA2_INVALIDACCESS16;
temp = da2->ioctl[da2->ioctladdr];
if (da2->ioctladdr == LS_STATUS) { /* Status register */
if (da2->attrc[LV_COMPATIBILITY] & 0x08) { /* for detecting monitor type and cable wiring */
if (da2->monitorid == DA2_DCONFIG_MONTYPE_MONO) {
/* grayscale monitor */
if ((da2->vgapal[0].r >= 10) || (da2->vgapal[0].g >= 40) || (da2->vgapal[0].b >= 10))
temp &= 0x7F; /* Inactive when the RGB output voltage is high (or the cable is not connected to a color monitor). */
else
temp |= 0x80; /* Active when the RGB output voltage is low and the cable is connected to a color monitor.
If the cable or the monitor is wrong, it becomes inactive. */
} else {
/* color monitor */
if ((da2->vgapal[0].r + da2->vgapal[0].g + da2->vgapal[0].b) >= 80)
temp &= 0x7F;
else
temp |= 0x80;
}
} else {
temp |= 0x80;
}
temp &= 0xf6; /* clear busy bit */
// if (da2->bitblt.indata) /* for OS/2 J1.3 */
// da2_bitblt_dopayload(da2);
if (da2->bitblt.exec != DA2_BLT_CIDLE) {
// da2_log("exec:%x\n", da2->bitblt.exec);
temp |= 0x01; /* wait (bit 3 + bit 0) ? need verify */
// if (!da2->bitblt.timer.enabled)
//{
// da2_log("bitblt timer restarted!! %04X:%04X\n", cs >> 4, cpu_state.pc);
// timer_advance_u64(&da2->bitblt.timer, da2->bitblt.timerspeed);
// }
}
if (da2->bitblt.indata)
temp |= 0x08;
#ifdef ENABLE_DA2_DEBUGMONWAIT
da2_log("DA2 In %04X(%02X) %04X %04X:%04X\n", addr, da2->ioctladdr, temp, cs >> 4, cpu_state.pc);
#endif
}
break;
case LF_INDEX:
temp = da2->fctladdr;
break;
case LF_DATA:
if (da2->fctladdr > 0x1f)
return DA2_INVALIDACCESS16;
temp = da2->fctl[da2->fctladdr];
break;
case LC_INDEX:
temp = da2->crtcaddr;
break;
case LC_DATA:
if (da2->crtcaddr > 0x1f)
return DA2_INVALIDACCESS16;
temp = da2->crtc[da2->crtcaddr];
break;
case LV_PORT:
temp = da2->attraddr | da2->attr_palette_enable;
break;
case 0x3E9:
if (da2->attraddr == LV_RAS_STATUS_VIDEO) /* this maybe equivalent to 3ba / 3da ISR1 */
{
if (da2->cgastat & 0x01)
da2->cgastat &= ~0x30;
else
da2->cgastat ^= 0x30; /* toggle */
temp = da2->cgastat;
} else
temp = da2->attrc[da2->attraddr];
// da2_log("DA2 In %04X(%02X) %04X %04X:%04X\n", addr, da2->attraddr, temp, cs >> 4, cpu_state.pc);
da2->attrff = 0; /* reset flipflop (VGA does not reset flipflop) */
break;
case LG_INDEX:
temp = da2->gdcaddr;
break;
case LG_DATA:
temp = da2->gdcreg[da2->gdcaddr & 0x1f];
// da2_log("DA2 In %04X(%02X) %04X %04X:%04X\n", addr, da2->gdcaddr, temp, cs >> 4, cpu_state.pc);
break;
}
// da2_log("DA2 In %04X %04X %04X:%04X\n", addr, temp, cs >> 4, cpu_state.pc);
return temp;
}
/*
* Write I/O
* out b(idx), out b(data), out b(data)
* out b(idx), out w(data)
* out b(idx), out w(data), out b(data)
* out w(idx)
* Read I/O
* out b(idx), in b(data)
* out b(idx), in b, in b(data)
* out b(idx), in w(data)
*/
void
da2_outb(uint16_t addr, uint8_t val, void *p)
{
da2_t *da2 = (da2_t *) p;
// da2_log("DA2 Outb addr %03X val %02X %04X:%04X es:di=%x:%x ds:si=%x:%x\n", addr, val, cs >> 4, cpu_state.pc, ES, DI, DS, SI);
da2->inflipflop = 0;
switch (addr) {
case LS_DATA:
case LF_DATA:
case LC_DATA:
case LG_DATA:
if (da2->outflipflop) {
/* out b(idx), out b(data), out b(data) */
da2->iolatch |= (uint16_t) val << 8;
da2->outflipflop = 0;
} else { //
da2->iolatch = val;
da2->outflipflop = 1;
}
break;
case LS_INDEX:
case LF_INDEX:
case LC_INDEX:
case LG_INDEX:
default:
da2->iolatch = val;
da2->outflipflop = 0;
break;
}
da2_out(addr, da2->iolatch, da2);
}
void
da2_outw(uint16_t addr, uint16_t val, void *p)
{
// da2_log("DA2 Outw addr %03X val %04X %04X:%04X\n", addr, val, cs >> 4, cpu_state.pc);
da2_t *da2 = (da2_t *) p;
da2->inflipflop = 0;
switch (addr) {
case LS_INDEX:
case LF_INDEX:
case LC_INDEX:
case LG_INDEX:
da2_out(addr, val & 0xff, da2);
da2->iolatch = val >> 8;
da2_out(addr + 1, da2->iolatch, da2);
da2->outflipflop = 1;
break;
case LV_PORT:
da2->attrff = 0;
da2_out(addr, val & 0xff, da2);
da2_out(addr, val >> 8, da2);
da2->outflipflop = 0;
break;
case 0x3EC:
// da2_log("DA2 Outw addr %03X val %04X %04X:%04X\n", addr, val, cs >> 4, cpu_state.pc);
da2_out(LG_DATA, val >> 8, da2);
break;
case 0x3ED:
da2->gdcaddr = LG_MODE;
da2_out(LG_DATA, val, da2);
break;
case LS_DATA:
case LF_DATA:
case LC_DATA:
case LG_DATA:
default:
da2_out(addr, val, da2);
da2->outflipflop = 0;
break;
case AC_REG:
/* no register is revealed */
da2_log("DA2 Outw addr %03X val %04X %04X:%04X\n", addr, val, cs >> 4, cpu_state.pc);
da2->reg3ee[val & 0x0f] = val >> 8;
break;
}
}
uint8_t
da2_inb(uint16_t addr, void *p)
{
uint8_t temp;
da2_t *da2 = (da2_t *) p;
da2->outflipflop = 0;
switch (addr) {
case LC_DATA:
if (da2->inflipflop) {
/* out b(idx), in b(low data), in b(high data) */
temp = da2->iolatch >> 8;
da2->inflipflop = 0;
} else { //
da2->iolatch = da2_in(addr, da2);
temp = da2->iolatch & 0xff;
da2->inflipflop = 1;
}
break;
case LS_INDEX:
case LF_INDEX:
case LC_INDEX:
case LG_INDEX:
case LS_DATA:
case LF_DATA:
case LG_DATA:
default:
temp = da2_in(addr, da2) & 0xff;
da2->inflipflop = 0;
break;
}
// da2_log("DA2 Inb %04X %02X %04X:%04X\n", addr, temp, cs >> 4, cpu_state.pc);
return temp;
}
uint16_t
da2_inw(uint16_t addr, void *p)
{
// uint16_t temp;
da2_t *da2 = (da2_t *) p;
da2->inflipflop = 0;
da2->outflipflop = 0;
return da2_in(addr, da2);
}
/* IO 03DAh : Input Status Register 2 for DOSSHELL used by DOS J4.0 */
uint8_t
da2_in_ISR(uint16_t addr, void *p)
{
da2_t *da2 = (da2_t *) p;
uint8_t temp = 0;
if (addr == 0x3da) {
if (da2->cgastat & 0x01)
da2->cgastat &= ~0x30;
else
da2->cgastat ^= 0x30;
temp = da2->cgastat;
}
// da2_log("DA2D In %04X %04X %04X:%04X\n", addr, temp, cs >> 4, cpu_state.pc);
return temp;
}
void
da2_out_ISR(uint16_t addr, uint8_t val, void *p)
{
// da2_t* da2 = (da2_t*)p;
da2_log("DA2D Out %04X %04X %04X:%04X\n", addr, val, cs >> 4, cpu_state.pc);
}
/*
The IBM 5550 character mode addresses video memory between E0000h and E0FFFh.
[Character drawing]
SBCS:
1 2 ... 13
1 | H.Grid
|----------------
2 | Space
3 V|
.|
G| Font Pattern
r| (12x24 pixels)
i|
d|
26 |________________
27 Space
----------------
28 Underscore ]
---------------- >Cursor Position
29 ]
DBCS:
1 2 ... 13 1 2 ... 12 13
1 | H.Grid | H.Grid |
-|--------------------------|-
2 | Space | Space |
-|--------------------------|-
3 V| | |S
.| | |p
G| Font Pattern |a
r| (24x24 pixels) |c
i| | |e
d| | |
26 |_____________|____________|
27 | Space | Space
------------------------------
28 | Underscore | Underscore ]
------------------------------ >Cursor Position
29 | | ]
[Attributes]
Video mode 08h:
7 6 5 4 3 2 1 0
Blink |Under |HGrid |VGrid |Bright|Revers|FntSet|DBCS/SBCS|
Video mode 0Eh:
-Blue |-Green|HGrid |VGrid |-Red |Revers|FntSet|DBCS/SBCS|
Bit 1 switches the font bank to the Extended SBCS. DOS K3.x loads APL characters from $SYSEX24.FNT into it.
DOS Bunsho Program transfers 1/2 and 1/4 fonts fron the font ROM to the Extended SBCS.
This bit is not used for DBCS, but some apps set it as that column is right half of DBCS.
[Font ROM Map (DA2, Japanese)]
The Font ROM can be accessed via 128 KB memory window located at A0000-BFFFFh.
Bank 0
4800- *
Bank 1, 2, 3
* - *
Bank 4
* -0DB6Fh ( 4800-8DB6Fh) : JIS X 0208 DBCS (24 x 24) (IBMJ code: 100-1F7Dh)
10000-16D1Fh (90000-96D1Fh) : IBM Extended Characters (IBMJ code: 2ADC-2C5Fh)
18000-1BFCFh (98000-9BFCFh) : JIS X 0201 SBCS (13 x 30)
1C000-1FFFFh (9C000-9FFFFh) : Codepage 437 characters (13 x 30)
Bank 5
00000-0C68Fh (A0000-AC68Fh) : Gaiji used by DOS Bunsho
10000-13FFFh (B0000-B3FFFh) : Extended SBCS (13 x 30)
14000-1477Fh (B4000-B477Fh) : Half-width box drawing characters used by DOS Bunsho
16000-17FFFh (B6000-B7FFFh) : Codepage 850 characters (13 x 30)
18000-1A3FFh (B8000-BA3FFh) : CAD control icons and box drawing characters (32 x 32)
Some models have the signature 80h, 01h placed at Bank 0:1AFFEh. It disables Bitblt text drawing in OS/2 J1.3.
[Font ROM Map (DA3, Traditional Chinese)]
Bank 0 - 11 : Valid Font ROM data
Bank 12 : Alias of bank 11 (At least, DOS T5.0 uses this on purpose to obtain the SBCS font.)
Bank 13 : Filled by 0xFFh
[Gaiji RAM Map (DA2)]
Bank 0 00000-1FFFFh placed between A0000h-BFFFFh
00000-1F7FFh(A0000-BF7FFh): Gaiji Non-resident (Kuten 103-114 ku,IBM: 2674-2ADBh) 1008 chs 128 bytes
1F800-1FFFFh(BF800-BFFFFh): Gaiji Resident (SJIS: F040-F04Fh, IBM: 2384-2393h) 16 chs
Bank 1 20000-3FFFFh placed between A0000h-BFFFFh
20000-33FFFh(A0000-B3FFFh): Gaiji Resident (SJIS: F050-F39Ch, IBM: 2394-2613h) 640 chs
34000-37FFFh(B4000-B7FFFh): Basic SBCS(00-FFh, ATTR bit 1 = off)
38000-3AFFFh(B8000-BAFFFh): Gaiji Resident (SJIS: F39D-F3FCh, IBM: 2614-2673h) 96 chs
3C000-3FFFFh(BC000-BFFFFh): Extended SBCS(00-FFh, ATTR bit 1 = on)
[IBMJ code to Gaiji address conv tbl from DOS K3.3]
A B C
2ADC, 2C5F, +5524 --> 8000
2614, 2673, +90EC --> B700
2384, 2613, +906C --> B3F0
0682, 1F7D, +0000
8000 - 8183h 184h(388 characters) IBM Extended Characters
B3F0 - B75Fh 370h(880 characters) User-defined Characters
*/
/* Get character line pattern from jfont rom or gaiji volatile memory */
uint32_t
getfont_ps55dbcs(int32_t code, int32_t line, void *p)
{
da2_t *da2 = (da2_t *) p;
uint32_t font = 0;
int32_t fline = line - 2; /* Start line of drawing character (line >= 1 AND line < 24 + 1 ) */
if (code >= 0x8000 && code <= 0x8183)
code -= 0x6000; /* shift for IBM extended characters (I don't know how the real card works.) */
if (code < DA2_FONTROM_SIZE / 72 && fline >= 0 && fline < 24) {
font = da2->mmio.font[code * 72 + fline * 3]; /* 0000 0000 0000 0000 0000 0000 1111 1111 */
font <<= 8; /* 0000 0000 0000 0000 1111 1111 0000 0000 */
font |= da2->mmio.font[code * 72 + fline * 3 + 1] & 0xf0; /* 0000 0000 0000 0000 1111 1111 2222 0000 */
font <<= 3; /* 0000 0000 0000 0111 1111 1222 2000 0000 */
font |= da2->mmio.font[code * 72 + fline * 3 + 1] & 0x0f; /* 0000 0000 0000 0111 1111 1222 2000 2222 */
font <<= 8; /* 0000 0111 1111 1222 2000 2222 0000 0000 */
font |= da2->mmio.font[code * 72 + fline * 3 + 2]; /* 0000 0111 1111 1222 2000 2222 3333 3333 */
font <<= 4; /* 0111 1111 1222 2000 2222 3333 3333 0000 */
/* font >>= 1;//put blank at column 1 (and 26) */
} else if (code >= 0xb000 && code <= 0xb75f) {
/* convert code->address in gaiji memory */
code -= 0xb000;
code *= 0x80;
// code += 0xf800;
font = da2->mmio.ram[code + line * 4];
font <<= 8;
font |= da2->mmio.ram[code + line * 4 + 1];
font <<= 8;
font |= da2->mmio.ram[code + line * 4 + 2];
font <<= 8;
font |= da2->mmio.ram[code + line * 4 + 3];
} else if (code > DA2_FONTROM_SIZE)
font = 0xffffffff;
else
font = 0;
return font;
}
/* Reverse the bit order of attribute code IRGB to BGRI(used in Mode 3 and Cursor Color) */
uint8_t
IRGBtoBGRI(uint8_t attr)
{
attr = ((attr & 0x01) << 7) | ((attr & 0x02) << 5) | ((attr & 0x04) << 3) | ((attr & 0x08) << 1);
return attr >>= 4;
}
/* Get the foreground color from the attribute byte */
uint8_t
getPS55ForeColor(uint8_t attr, da2_t *da2)
{
uint8_t foreground = ~attr & 0x08; /* 0000 1000 */
foreground <<= 2; /* 0010 0000 */
foreground |= ~attr & 0xc0; /* 1110 0000 */
foreground >>= 4; /* 0000 1110 */
if (da2->attrc[LV_PAS_STATUS_CNTRL] & 0x40)
foreground |= 0x01; /* bright color palette */
return foreground;
}
void
da2_render_blank(da2_t *da2)
{
int x, xx;
if (da2->firstline_draw == 2000)
da2->firstline_draw = da2->displine;
da2->lastline_draw = da2->displine;
for (x = 0; x < da2->hdisp; x++) {
for (xx = 0; xx < 13; xx++)
((uint32_t *) buffer32->line[da2->displine])[(x * 13) + xx + 32] = 0;
}
}
/* Display Adapter Mode 8, E Drawing */
static void
da2_render_text(da2_t *da2)
{
if (da2->firstline_draw == 2000)
da2->firstline_draw = da2->displine;
da2->lastline_draw = da2->displine;
if (da2->fullchange) {
int offset = (8 - da2->scrollcache) + 24;
uint32_t *p = &((uint32_t *) buffer32->line[da2->displine])[offset];
int x;
int drawcursor;
uint8_t chr, attr;
int fg, bg;
uint32_t chr_dbcs;
int chr_wide = 0;
// da2_log("\nda2ma: %x, da2sc: %x\n", da2->ma, da2->sc);
for (x = 0; x < da2->hdisp; x += 13) {
chr = da2->cram[(da2->ma) & DA2_MASK_CRAM];
attr = da2->cram[(da2->ma + 1) & DA2_MASK_CRAM];
// if(chr!=0x20) da2_log("chr: %x, attr: %x ", chr, attr);
if (da2->attrc[LV_PAS_STATUS_CNTRL] & 0x80) /* IO 3E8h, Index 1Dh */
{ /* --Parse attribute byte in color mode-- */
bg = 0; /* bg color is always black (the only way to change background color is programming PAL) */
fg = getPS55ForeColor(attr, da2);
if (attr & 0x04) { /* reverse 0000 0100 */
bg = fg;
fg = 0;
}
} else { /* --Parse attribute byte in monochrome mode-- */
if (attr & 0x08)
fg = 3; /* Highlight 0000 1000 */
else
fg = 2;
bg = 0; /* Background is always color #0 (default is black) */
if (!(~attr & 0xCC)) /* Invisible 11xx 11xx -> 00xx 00xx */
{
fg = bg;
attr &= 0x33; /* disable blinkking, underscore, highlight and reverse */
}
if (attr & 0x04) { /* reverse 0000 0100 */
bg = fg;
fg = 0;
}
/* Blinking 1000 0000 */
fg = ((da2->blink & 0x20) || (!(attr & 0x80))) ? fg : bg;
// if(chr!=0x20) da2_log("chr: %x, %x, %x, %x, %x ", chr, attr, fg, da2->egapal[fg], da2->pallook[da2->egapal[fg]]);
}
/* Draw character */
for (uint32_t n = 0; n < 13; n++)
p[n] = da2->pallook[da2->egapal[bg]]; /* draw blank */
/* SBCS or DBCS left half */
if (chr_wide == 0) {
if (attr & 0x01)
chr_wide = 1;
// chr_wide = 0;
/* Stay drawing If the char code is DBCS and not at last column. */
if (chr_wide) {
/* Get high DBCS code from the next video address */
chr_dbcs = da2->cram[(da2->ma + 2) & DA2_MASK_CRAM];
chr_dbcs <<= 8;
chr_dbcs |= chr;
/* Get the font pattern */
uint32_t font = getfont_ps55dbcs(chr_dbcs, da2->sc, da2);
/* Draw 13 dots */
for (uint32_t n = 0; n < 13; n++) {
p[n] = da2->pallook[da2->egapal[(font & 0x80000000) ? fg : bg]];
font <<= 1;
}
} else {
/* the char code is SBCS (ANK) */
uint32_t fontbase;
if (attr & 0x02) /* second map of SBCS font */
fontbase = DA2_GAIJIRAM_SBEX;
else
fontbase = DA2_GAIJIRAM_SBCS;
uint16_t font = da2->mmio.ram[fontbase + chr * 0x40 + da2->sc * 2]; /* w13xh29 font */
font <<= 8;
font |= da2->mmio.ram[fontbase + chr * 0x40 + da2->sc * 2 + 1]; /* w13xh29 font */
// if(chr!=0x20) da2_log("ma: %x, sc: %x, chr: %x, font: %x ", da2->ma, da2->sc, chr, font);
/* Draw 13 dots */
for (uint32_t n = 0; n < 13; n++) {
p[n] = da2->pallook[da2->egapal[(font & 0x8000) ? fg : bg]];
font <<= 1;
}
}
}
/* right half of DBCS */
else {
uint32_t font = getfont_ps55dbcs(chr_dbcs, da2->sc, da2);
/* Draw 13 dots */
for (uint32_t n = 0; n < 13; n++) {
p[n] = da2->pallook[da2->egapal[(font & 0x8000) ? fg : bg]];
font <<= 1;
}
chr_wide = 0;
}
/* Line 28 (Underscore) Note: Draw this first to display blink + vertical + underline correctly. */
if (da2->sc == 27 && attr & 0x40 && ~da2->attrc[LV_PAS_STATUS_CNTRL] & 0x80) { /* Underscore only in monochrome mode */
for (uint32_t n = 0; n < 13; n++)
p[n] = da2->pallook[da2->egapal[fg]]; /* under line (white) */
}
/* Column 1 (Vertical Line) */
if (attr & 0x10) {
p[0] = da2->pallook[da2->egapal[(da2->attrc[LV_PAS_STATUS_CNTRL] & 0x80) ? IRGBtoBGRI(da2->attrc[LV_GRID_COLOR_0]) : 2]]; /* vertical line (white) */
}
if (da2->sc == 0 && attr & 0x20 && ~da2->attrc[LV_PAS_STATUS_CNTRL]) { /* HGrid */
for (uint32_t n = 0; n < 13; n++)
p[n] = da2->pallook[da2->egapal[(da2->attrc[LV_PAS_STATUS_CNTRL] & 0x80) ? IRGBtoBGRI(da2->attrc[LV_GRID_COLOR_0]) : 2]]; /* horizontal line (white) */
}
/* Drawing text cursor */
drawcursor = ((da2->ma == da2->ca) && da2->con && da2->cursoron);
if (drawcursor && da2->sc >= da2->crtc[LC_CURSOR_ROW_START] && da2->sc <= da2->crtc[LC_CURSOR_ROW_END]) {
int cursorwidth = (da2->crtc[LC_COMPATIBILITY] & 0x20 ? 26 : 13);
int cursorcolor = (da2->attrc[LV_PAS_STATUS_CNTRL] & 0x80) ? IRGBtoBGRI(da2->attrc[LV_CURSOR_COLOR]) : 2; /* Choose color 2 if mode 8 */
fg = (da2->attrc[LV_PAS_STATUS_CNTRL] & 0x80) ? getPS55ForeColor(attr, da2) : ((attr & 0x08) ? 3 : 2);
bg = 0;
if (attr & 0x04) { /* Color 0 if reverse */
bg = fg;
fg = 0;
}
for (uint32_t n = 0; n < cursorwidth; n++)
if (p[n] == da2->pallook[da2->egapal[cursorcolor]] || da2->egapal[bg] == da2->egapal[cursorcolor])
p[n] = (p[n] == da2->pallook[da2->egapal[bg]]) ? da2->pallook[da2->egapal[fg]] : da2->pallook[da2->egapal[bg]];
else
p[n] = (p[n] == da2->pallook[da2->egapal[bg]]) ? da2->pallook[da2->egapal[cursorcolor]] : p[n];
}
da2->ma += 2;
p += 13;
}
// da2->ma &= DA2_MASK_CRAM;
// da2->writelines++;
}
}
/* Display Adapter Mode 3 Drawing */
static void
da2_render_textm3(da2_t *da2)
{
if (da2->firstline_draw == 2000)
da2->firstline_draw = da2->displine;
da2->lastline_draw = da2->displine;
if (da2->fullchange) {
int offset = (8 - da2->scrollcache) + 24;
uint32_t *p = &((uint32_t *) buffer32->line[da2->displine])[offset];
int x;
int drawcursor;
uint8_t chr, attr, extattr;
int fg, bg;
uint32_t chr_dbcs;
int chr_wide = 0;
// da2_log("\nda2ma: %x, da2sc: %x\n", da2->ma, da2->sc);
for (x = 0; x < da2->hdisp; x += 13) {
chr = DA2_vram_r(DA2_VM03_BASECHR + da2->ma, da2);
attr = DA2_vram_r(DA2_VM03_BASECHR + da2->ma + 1, da2);
extattr = DA2_vram_r(DA2_VM03_BASEEXATTR + da2->ma + 1, da2);
// if(chr!=0x20) da2_log("addr: %x, chr: %x, attr: %x ", (DA2_VM03_BASECHR + da2->ma << 1) & da2->vram_mask, chr, attr);
bg = attr >> 4;
// if (da2->blink) bg &= ~0x8;
// fg = (da2->blink || (!(attr & 0x80))) ? (attr & 0xf) : bg;
fg = attr & 0xf;
fg = IRGBtoBGRI(fg);
bg = IRGBtoBGRI(bg);
/* Draw character */
for (uint32_t n = 0; n < 13; n++)
p[n] = da2->pallook[da2->egapal[bg]]; /* draw blank */
/* BCS or DBCS left half */
if (chr_wide == 0) {
if (extattr & 0x01)
chr_wide = 1;
/* Stay drawing if the char code is DBCS and not at last column. */
if (chr_wide) {
/* Get high DBCS code from the next video address */
chr_dbcs = DA2_vram_r(DA2_VM03_BASECHR + da2->ma + 2, da2);
chr_dbcs <<= 8;
chr_dbcs |= chr;
/* Get the font pattern */
uint32_t font = getfont_ps55dbcs(chr_dbcs, da2->sc, da2);
/* Draw 13 dots */
for (uint32_t n = 0; n < 13; n++) {
p[n] = da2->pallook[da2->egapal[(font & 0x80000000) ? fg : bg]];
font <<= 1;
}
} else {
/* the char code is SBCS (ANK) */
uint16_t font = da2->mmio.ram[DA2_GAIJIRAM_SBCS + chr * 0x40 + da2->sc * 2]; /* w13xh29 font */
font <<= 8;
font |= da2->mmio.ram[DA2_GAIJIRAM_SBCS+ chr * 0x40 + da2->sc * 2 + 1]; /* w13xh29 font */
// if(chr!=0x20) da2_log("ma: %x, sc: %x, chr: %x, font: %x ", da2->ma, da2->sc, chr, font);
for (uint32_t n = 0; n < 13; n++) {
p[n] = da2->pallook[da2->egapal[(font & 0x8000) ? fg : bg]];
font <<= 1;
}
}
}
/* right half of DBCS */
else {
uint32_t font = getfont_ps55dbcs(chr_dbcs, da2->sc, da2);
/* Draw 13 dots */
for (uint32_t n = 0; n < 13; n++) {
p[n] = da2->pallook[da2->egapal[(font & 0x8000) ? fg : bg]];
font <<= 1;
}
chr_wide = 0;
}
drawcursor = ((da2->ma == da2->ca) && da2->con && da2->cursoron);
if (drawcursor && da2->sc >= da2->crtc[LC_CURSOR_ROW_START] && da2->sc <= da2->crtc[LC_CURSOR_ROW_END]) {
// int cursorwidth = (da2->crtc[0x1f] & 0x20 ? 26 : 13);
// int cursorcolor = (da2->attrc[LV_PAS_STATUS_CNTRL] & 0x80) ? IRGBtoBGRI(da2->attrc[0x1a]) : 2;/* Choose color 2 if mode 8 */
// fg = (da2->attrc[LV_PAS_STATUS_CNTRL] & 0x80) ? getPS55ForeColor(attr, da2) : (attr & 0x08) ? 3 : 2;
// bg = 0;
// if (attr & 0x04) {/* Color 0 if reverse */
// bg = fg;
// fg = 0;
// }
for (uint32_t n = 0; n < 13; n++)
p[n] = da2->pallook[da2->egapal[fg]];
}
da2->ma += 2;
p += 13;
}
// da2->ma &= DA2_MASK_CRAM;
// da2->writelines++;
}
}
void
da2_render_color_4bpp(da2_t *da2)
{
int changed_offset = da2->ma >> 9;
// da2_log("ma %x cf %x\n", da2->ma, changed_offset);
da2->plane_mask &= 0x0f; /*safety */
if (da2->changedvram[changed_offset] || da2->changedvram[changed_offset + 1] || da2->fullchange) {
int x;
int offset = (8 - da2->scrollcache) + 24;
uint32_t *p = &((uint32_t *) buffer32->line[da2->displine])[offset];
if (da2->firstline_draw == 2000)
da2->firstline_draw = da2->displine;
da2->lastline_draw = da2->displine;
// da2_log("d %X\n", da2->ma);
for (x = 0; x <= da2->hdisp; x += 8) /* hdisp = 1024 */
{
uint8_t edat[8];
uint8_t dat;
/* get 8 pixels from vram */
da2->ma &= da2->vram_display_mask;
*(uint32_t *) (&edat[0]) = *(uint32_t *) (&da2->vram[da2->ma << 3]);
da2->ma += 1;
dat = ((edat[0] >> 7) & (1 << 0)) | ((edat[1] >> 6) & (1 << 1)) | ((edat[2] >> 5) & (1 << 2)) | ((edat[3] >> 4) & (1 << 3));
p[0] = da2->pallook[da2->egapal[dat & da2->plane_mask]];
dat = ((edat[0] >> 6) & (1 << 0)) | ((edat[1] >> 5) & (1 << 1)) | ((edat[2] >> 4) & (1 << 2)) | ((edat[3] >> 3) & (1 << 3));
p[1] = da2->pallook[da2->egapal[dat & da2->plane_mask]];
dat = ((edat[0] >> 5) & (1 << 0)) | ((edat[1] >> 4) & (1 << 1)) | ((edat[2] >> 3) & (1 << 2)) | ((edat[3] >> 2) & (1 << 3));
p[2] = da2->pallook[da2->egapal[dat & da2->plane_mask]];
dat = ((edat[0] >> 4) & (1 << 0)) | ((edat[1] >> 3) & (1 << 1)) | ((edat[2] >> 2) & (1 << 2)) | ((edat[3] >> 1) & (1 << 3));
p[3] = da2->pallook[da2->egapal[dat & da2->plane_mask]];
dat = ((edat[0] >> 3) & (1 << 0)) | ((edat[1] >> 2) & (1 << 1)) | ((edat[2] >> 1) & (1 << 2)) | ((edat[3] >> 0) & (1 << 3));
p[4] = da2->pallook[da2->egapal[dat & da2->plane_mask]];
dat = ((edat[0] >> 2) & (1 << 0)) | ((edat[1] >> 1) & (1 << 1)) | ((edat[2] >> 0) & (1 << 2)) | ((edat[3] << 1) & (1 << 3));
p[5] = da2->pallook[da2->egapal[dat & da2->plane_mask]];
dat = ((edat[0] >> 1) & (1 << 0)) | ((edat[1] >> 0) & (1 << 1)) | ((edat[2] << 1) & (1 << 2)) | ((edat[3] << 2) & (1 << 3));
p[6] = da2->pallook[da2->egapal[dat & da2->plane_mask]];
dat = ((edat[0] >> 0) & (1 << 0)) | ((edat[1] << 1) & (1 << 1)) | ((edat[2] << 2) & (1 << 2)) | ((edat[3] << 3) & (1 << 3));
p[7] = da2->pallook[da2->egapal[dat & da2->plane_mask]];
p += 8;
}
// da2->writelines++;
}
}
void
da2_render_color_8bpp(da2_t *da2)
{
int changed_offset = da2->ma >> 9;
// da2_log("ma %x cf %x\n", da2->ma, changed_offset);
if (da2->changedvram[changed_offset] || da2->changedvram[changed_offset + 1] || da2->fullchange) {
int x;
int offset = (8 - da2->scrollcache) + 24;
uint32_t *p = &((uint32_t *) buffer32->line[da2->displine])[offset];
if (da2->firstline_draw == 2000)
da2->firstline_draw = da2->displine;
da2->lastline_draw = da2->displine;
// da2_log("d %X\n", da2->ma);
for (x = 0; x <= da2->hdisp; x += 8) /* hdisp = 1024 */
{
uint8_t edat[8];
uint8_t dat;
/* get 8 pixels from vram */
da2->ma &= da2->vram_display_mask;
*(uint32_t *) (&edat[0]) = *(uint32_t *) (&da2->vram[da2->ma << 3]);
*(uint32_t *) (&edat[4]) = *(uint32_t *) (&da2->vram[(da2->ma << 3) + 4]);
da2->ma += 1;
dat = ((edat[0] >> 7) & (1 << 0)) | ((edat[1] >> 6) & (1 << 1)) | ((edat[2] >> 5) & (1 << 2)) | ((edat[3] >> 4) & (1 << 3)) | ((edat[4] >> 3) & (1 << 4)) | ((edat[5] >> 2) & (1 << 5)) | ((edat[6] >> 1) & (1 << 6)) | ((edat[7] >> 0) & (1 << 7));
p[0] = da2->pallook[dat];
dat = ((edat[0] >> 6) & (1 << 0)) | ((edat[1] >> 5) & (1 << 1)) | ((edat[2] >> 4) & (1 << 2)) | ((edat[3] >> 3) & (1 << 3)) | ((edat[4] >> 2) & (1 << 4)) | ((edat[5] >> 1) & (1 << 5)) | ((edat[6] >> 0) & (1 << 6)) | ((edat[7] << 1) & (1 << 7));
p[1] = da2->pallook[dat];
dat = ((edat[0] >> 5) & (1 << 0)) | ((edat[1] >> 4) & (1 << 1)) | ((edat[2] >> 3) & (1 << 2)) | ((edat[3] >> 2) & (1 << 3)) | ((edat[4] >> 1) & (1 << 4)) | ((edat[5] >> 0) & (1 << 5)) | ((edat[6] << 1) & (1 << 6)) | ((edat[7] << 2) & (1 << 7));
p[2] = da2->pallook[dat];
dat = ((edat[0] >> 4) & (1 << 0)) | ((edat[1] >> 3) & (1 << 1)) | ((edat[2] >> 2) & (1 << 2)) | ((edat[3] >> 1) & (1 << 3)) | ((edat[4] >> 0) & (1 << 4)) | ((edat[5] << 1) & (1 << 5)) | ((edat[6] << 2) & (1 << 6)) | ((edat[7] << 3) & (1 << 7));
p[3] = da2->pallook[dat];
dat = ((edat[0] >> 3) & (1 << 0)) | ((edat[1] >> 2) & (1 << 1)) | ((edat[2] >> 1) & (1 << 2)) | ((edat[3] >> 0) & (1 << 3)) | ((edat[4] << 1) & (1 << 4)) | ((edat[5] << 2) & (1 << 5)) | ((edat[6] << 3) & (1 << 6)) | ((edat[7] << 4) & (1 << 7));
p[4] = da2->pallook[dat];
dat = ((edat[0] >> 2) & (1 << 0)) | ((edat[1] >> 1) & (1 << 1)) | ((edat[2] >> 0) & (1 << 2)) | ((edat[3] << 1) & (1 << 3)) | ((edat[4] << 2) & (1 << 4)) | ((edat[5] << 3) & (1 << 5)) | ((edat[6] << 4) & (1 << 6)) | ((edat[7] << 5) & (1 << 7));
p[5] = da2->pallook[dat];
dat = ((edat[0] >> 1) & (1 << 0)) | ((edat[1] >> 0) & (1 << 1)) | ((edat[2] << 1) & (1 << 2)) | ((edat[3] << 2) & (1 << 3)) | ((edat[4] << 3) & (1 << 4)) | ((edat[5] << 4) & (1 << 5)) | ((edat[6] << 5) & (1 << 6)) | ((edat[7] << 6) & (1 << 7));
p[6] = da2->pallook[dat];
dat = ((edat[0] >> 0) & (1 << 0)) | ((edat[1] << 1) & (1 << 1)) | ((edat[2] << 2) & (1 << 2)) | ((edat[3] << 3) & (1 << 3)) | ((edat[4] << 4) & (1 << 4)) | ((edat[5] << 5) & (1 << 5)) | ((edat[6] << 6) & (1 << 6)) | ((edat[7] << 7) & (1 << 7));
p[7] = da2->pallook[dat];
p += 8;
}
// da2->writelines++;
}
}
void
da2_updatevidselector(da2_t *da2)
{
if (da2->ioctl[LS_MODE] & 0x02) {
/* VGA passthrough mode */
da2->override = 1;
svga_set_override(da2->mb_vga, 0);
da2_log("DA2 selector: VGA\n");
} else {
svga_set_override(da2->mb_vga, 1);
da2->override = 0;
da2_log("DA2 selector: DA2\n");
}
}
void
da2_recalctimings(da2_t *da2)
{
double crtcconst;
double _dispontime, _dispofftime, disptime;
/* if output disabled or VGA passthrough */
if (!(da2->attrc[LV_COMPATIBILITY] & 0x08) || da2->ioctl[LS_MODE] & 0x02)
return;
da2->vtotal = da2->crtc[LC_VERTICAL_TOTALJ] & 0xfff;
da2->dispend = da2->crtc[LC_V_DISPLAY_ENABLE_END] & 0xfff;
da2->vsyncstart = da2->crtc[LC_VERTICAL_SYNC_START] & 0xfff;
da2->split = da2->crtc[LC_LINE_COMPAREJ] & 0xfff;
da2->split = 0xfff;
da2->vblankstart = da2->crtc[LC_START_VERTICAL_BLANK] & 0xfff;
da2->hdisp = da2->crtc[LC_H_DISPLAY_ENABLE_END];
if (da2->crtc[LC_START_H_DISPLAY_ENAB] & 1) {
da2->hdisp--;
da2->dispend -= 29;
} else {
// da2->vtotal += 2;
da2->dispend--;
// da2->vsyncstart++;
// da2->split++;
// da2->vblankstart++;
// da2->hdisp--;
}
da2->htotal = da2->crtc[LC_HORIZONTAL_TOTAL];
da2->htotal += 1;
da2->rowoffset = da2->crtc[LC_OFFSET]; /* number of bytes in a scanline */
da2->clock = da2->da2const;
// da2->lowres = da2->attrc[LV_MODE_CONTROL] & 0x40;
// da2->interlace = 0;
// da2->ma_latch = ((da2->crtc[0xc] & 0x3ff) << 8) | da2->crtc[0xd];//w + b
da2->ca_adj = 0;
da2->rowcount = da2->crtc[LC_MAXIMUM_SCAN_LINE];
da2->hdisp_time = da2->hdisp;
da2->render = da2_render_blank;
/* determine display mode */
// if (da2->attr_palette_enable && (da2->attrc[0x1f] & 0x08))
/* 16 color graphics mode */
if (!(da2->ioctl[LS_MODE] & 0x01)) {
da2->hdisp *= 16;
da2->char_width = 13;
da2->hdisp_old = da2->hdisp;
if (da2->crtc[LC_VIEWPORT_PRIORITY] & 0x80) {
da2_log("Set videomode to PS/55 8 bpp graphics.\n");
da2->render = da2_render_color_8bpp;
da2->vram_display_mask = DA2_MASK_A000;
} else { /* PS/55 8-color */
da2_log("Set videomode to PS/55 4 bpp graphics.\n");
da2->vram_display_mask = DA2_MASK_A000;
da2->render = da2_render_color_4bpp;
}
} else {
/* text mode */
if (da2->attrc[LV_ATTRIBUTE_CNTL] & 1) {
da2_log("Set videomode to PS/55 Mode 03 text.\n");
da2->render = da2_render_textm3;
da2->vram_display_mask = DA2_MASK_CRAM;
} else { /* PS/55 text(color/mono) */
da2_log("Set videomode to PS/55 Mode 8/E text.\n");
da2->render = da2_render_text;
da2->vram_display_mask = DA2_MASK_CRAM;
}
da2->hdisp *= 13;
da2->hdisp_old = da2->hdisp;
da2->char_width = 13;
}
// if (!da2->scrblank && da2->attr_palette_enable)
//{
// da2->render = da2_draw_text;
//}
// da2_log("da2_render %08X : %08X %08X %08X %08X %08X %i %i %02X %i %i\n", da2_render, da2_render_text_40, da2_render_text_80, da2_render_8bpp_lowres, da2_render_8bpp_highres, da2_render_blank, scrblank,gdcreg[6]&1,gdcreg[5]&0x60,bpp,seqregs[1]&8);
// if (da2->recalctimings_ex)
// da2->recalctimings_ex(da2);
if (da2->vblankstart < da2->dispend)
da2->dispend = da2->vblankstart;
crtcconst = da2->clock * da2->char_width;
disptime = da2->htotal;
_dispontime = da2->hdisp_time;
da2_log("Disptime %f dispontime %f hdisp %i\n", disptime, _dispontime, da2->hdisp);
// if (da2->seqregs[1] & 8) { disptime *= 2; _dispontime *= 2; }
_dispofftime = disptime - _dispontime;
_dispontime *= crtcconst;
_dispofftime *= crtcconst;
da2->dispontime = (uint64_t) _dispontime;
da2->dispofftime = (uint64_t) _dispofftime;
if (da2->dispontime < TIMER_USEC)
da2->dispontime = TIMER_USEC;
if (da2->dispofftime < TIMER_USEC)
da2->dispofftime = TIMER_USEC;
da2_log("da2 horiz total %i display end %i vidclock %f\n", da2->crtc[0], da2->crtc[1], da2->clock);
da2_log("da2 vert total %i display end %i max row %i vsync %i\n",da2->vtotal,da2->dispend,(da2->crtc[9]&31)+1,da2->vsyncstart);
da2_log("total %f on %i cycles off %i cycles frame %i sec %i\n",disptime*crtcconst,da2->dispontime,da2->dispofftime,(da2->dispontime+da2->dispofftime)*da2->vtotal,(da2->dispontime+da2->dispofftime)*da2->vtotal*70);
// da2_log("da2->render %08X\n", da2->render);
}
static void
da2_mapping_update(da2_t *da2)
{
/* Has the CardEnable bit been changed? */
if (!((da2->pos_regs[2] ^ da2->old_pos2) & 1))
return;
da2->old_pos2 = da2->pos_regs[2];
// da2_recalc_mapping(da2);
if (da2->pos_regs[2] & 0x01) {
da2_log("DA2 enable registers\n");
for (int i = 0; i < 8; i++)
da2_log("DA2 POS[%d]: %x\n", i, da2->pos_regs[i]);
io_sethandler(0x03c0, 0x000a, da2_inb, da2_inw, NULL, da2_outb, da2_outw, NULL, da2);
io_sethandler(0x03e0, 0x0010, da2_inb, da2_inw, NULL, da2_outb, da2_outw, NULL, da2);
io_sethandler(0x03d0, 0x000b, da2_in_ISR, NULL, NULL, da2_out_ISR, NULL, NULL, da2);
mem_mapping_enable(&da2->cmapping);
mem_mapping_enable(&da2->mmio.mapping);
timer_enable(&da2->timer);
timer_enable(&da2->bitblt.timer);
} else {
da2_log("DA2 disable registers\n");
timer_disable(&da2->bitblt.timer);
timer_disable(&da2->timer);
mem_mapping_disable(&da2->cmapping);
mem_mapping_disable(&da2->mmio.mapping);
io_removehandler(0x03c0, 0x000a, da2_inb, da2_inw, NULL, da2_outb, da2_outw, NULL, da2);
io_removehandler(0x03e0, 0x0010, da2_inb, da2_inw, NULL, da2_outb, da2_outw, NULL, da2);
io_removehandler(0x03d0, 0x000b, da2_in_ISR, NULL, NULL, da2_out_ISR, NULL, NULL, da2);
}
}
uint8_t
da2_mca_read(int port, void *p)
{
da2_t *da2 = (da2_t *) p;
return da2->pos_regs[port & 7];
}
void
da2_mca_write(int port, uint8_t val, void *p)
{
da2_t *da2 = (da2_t *) p;
da2_log("da2_mca_write: port=%04x val=%02x\n", port, val);
if (port < 0x102)
return;
da2->pos_regs[port & 7] = val;
da2_mapping_update(da2);
}
static uint8_t
da2_mca_feedb(void *priv)
{
const da2_t *da2 = (da2_t *) priv;
return da2->pos_regs[2] & 0x01;
}
static void
da2_mca_reset(void *p)
{
da2_t *da2 = (da2_t *) p;
da2_log("da2_mca_reset called.\n");
da2_reset(da2);
da2_mca_write(0x102, 0, da2);
}
static void
da2_gdcropB(uint32_t addr,uint8_t bitmask, da2_t *da2)
{
for (int i = 0; i < 8; i++) {
if (da2->writemask & (1 << i)) {
// da2_log("da2_gdcropB o%x a%x d%x p%d m%x\n", da2->gdcreg[LG_COMMAND] & 0x03, addr, da2->gdcinput[i], i, bitmask);
switch (da2->gdcreg[LG_COMMAND] & 0x03) {
case 0: /*Set*/
// da2->vram[addr | i] = (da2->gdcinput[i] & bitmask) | (da2->gdcsrc[i] & ~bitmask);
// da2->vram[addr | i] = (da2->gdcinput[i] & bitmask) | (da2->vram[addr | i] & ~bitmask);
DA2_vram_w(addr | i, (da2->gdcinput[i] & bitmask) | (da2->vram[addr | i] & ~bitmask), da2);
break;
case 1: /*AND*/
// da2->vram[addr | i] = (da2->gdcinput[i] | ~bitmask) & da2->gdcsrc[i];
DA2_vram_w(addr | i, ((da2->gdcinput[i] & da2->gdcsrc[i]) & bitmask) | (da2->vram[addr | i] & ~bitmask), da2);
break;
case 2: /*OR*/
// da2->vram[addr | i] = (da2->gdcinput[i] & bitmask) | da2->gdcsrc[i];
DA2_vram_w(addr | i, ((da2->gdcinput[i] | da2->gdcsrc[i]) & bitmask) | (da2->vram[addr | i] & ~bitmask), da2);
break;
case 3: /*XOR*/
// da2->vram[addr | i] = (da2->gdcinput[i] & bitmask) ^ da2->gdcsrc[i];
DA2_vram_w(addr | i, ((da2->gdcinput[i] ^ da2->gdcsrc[i]) & bitmask) | (da2->vram[addr | i] & ~bitmask), da2);
break;
}
}
}
}
static void
da2_gdcropW(uint32_t addr, uint16_t bitmask, da2_t *da2)
{
uint8_t bitmask_l = bitmask & 0xff;
uint8_t bitmask_h = bitmask >> 8;
for (int i = 0; i < 8; i++) {
if (da2->writemask & (1 << i)) {
// da2_log("da2_gdcropW m%x a%x d%x i%d ml%x mh%x\n", da2->gdcreg[LG_COMMAND] & 0x03, addr, da2->gdcinput[i], i, da2->gdcreg[LG_BIT_MASK_LOW], da2->gdcreg[LG_BIT_MASK_HIGH]);
switch (da2->gdcreg[LG_COMMAND] & 0x03) {
case 0: /*Set*/
// da2->vram[addr | i] = (da2->gdcinput[i] & bitmask_l) | (da2->gdcsrc[i] & ~bitmask_l);
// da2->vram[(addr + 8) | i] = ((da2->gdcinput[i] >> 8) & bitmask_h) | ((da2->gdcsrc[i] >> 8) & ~bitmask_h);
DA2_vram_w(addr | i, (da2->gdcinput[i] & bitmask_l) | (da2->vram[addr | i] & ~bitmask_l), da2);
DA2_vram_w((addr + 8) | i, ((da2->gdcinput[i] >> 8) & bitmask_h)
| (da2->vram[(addr + 8) | i] & ~bitmask_h), da2);
break;
case 1: /*AND*/
// da2->vram[addr | i] = (da2->gdcinput[i] | ~bitmask_l) & da2->gdcsrc[i];
// da2->vram[(addr + 8) | i] = ((da2->gdcinput[i] >> 8) | ~bitmask_h) & (da2->gdcsrc[i] >> 8);
DA2_vram_w(addr | i, ((da2->gdcinput[i] & da2->gdcsrc[i]) & bitmask_l) | (da2->vram[addr | i] & ~bitmask_l), da2);
DA2_vram_w((addr + 8) | i, (((da2->gdcinput[i] >> 8) & (da2->gdcsrc[i] >> 8)) & bitmask_h)
| (da2->vram[(addr + 8) | i] & ~bitmask_h), da2);
break;
case 2: /*OR*/
// da2->vram[addr | i] = (da2->gdcinput[i] & bitmask_l) | da2->gdcsrc[i];
// da2->vram[(addr + 8) | i] = ((da2->gdcinput[i] >> 8) & bitmask_h) | (da2->gdcsrc[i] >> 8);
DA2_vram_w(addr | i, ((da2->gdcinput[i] | da2->gdcsrc[i]) & bitmask_l) | (da2->vram[addr | i] & ~bitmask_l), da2);
DA2_vram_w((addr + 8) | i, (((da2->gdcinput[i] >> 8) | (da2->gdcsrc[i] >> 8)) & bitmask_h)
| (da2->vram[(addr + 8) | i] & ~bitmask_h), da2);
break;
case 3: /*XOR*/
// da2->vram[addr | i] = (da2->gdcinput[i] & bitmask_l) ^ da2->gdcsrc[i];
// da2->vram[(addr + 8) | i] = ((da2->gdcinput[i] >> 8) & bitmask_h) ^ (da2->gdcsrc[i] >> 8);
DA2_vram_w(addr | i, ((da2->gdcinput[i] ^ da2->gdcsrc[i]) & bitmask_l) | (da2->vram[addr | i] & ~bitmask_l), da2);
DA2_vram_w((addr + 8) | i, (((da2->gdcinput[i] >> 8) ^ (da2->gdcsrc[i] >> 8)) & bitmask_h)
| (da2->vram[(addr + 8) | i] & ~bitmask_h), da2);
break;
}
}
}
}
static uint8_t
da2_mmio_read(uint32_t addr, void *p)
{
da2_t *da2 = (da2_t *) p;
addr &= DA2_MASK_MMIO;
if (da2->ioctl[LS_MMIO] & 0x10) {
if (da2->fctl[LF_MMIO_SEL] == 0x80)
/* linear access */
addr |= ((uint32_t) da2->fctl[LF_MMIO_ADDR] << 17);
else {
/* 64k bank switch access */
uint32_t index = da2->fctl[LF_MMIO_MODE] & 0x0f;
index <<= 8;
index |= da2->fctl[LF_MMIO_ADDR];
addr += index * 0x40;
}
// da2_log("PS55_MemHnd: Read from mem %x, bank %x, addr %x\n", da2->fctl[LF_MMIO_MODE], da2->fctl[LF_MMIO_ADDR], addr);
switch (da2->fctl[LF_MMIO_MODE] & 0xf0) {
case 0xb0: /* Gaiji RAM */
addr &= DA2_MASK_GAIJIRAM; /* safety access */
// da2_log("PS55_MemHnd_G: Read from mem %x, bank %x, chr %x (%x), val %x\n", da2->fctl[LF_MMIO_MODE], da2->fctl[LF_MMIO_ADDR], addr / 128, addr, da2->mmio.font[addr]);
return da2->mmio.ram[addr];
break;
case 0x10: /* Font ROM */
if (da2->mmio.charset == DA2_DCONFIG_CHARSET_HANT) {
if (addr >= 0x1a0000)
return DA2_INVALIDACCESS8;
if (addr >= 0x180000)
addr -= 0x40000; /* The bank 12 (180000h-19ffffh) is beyond the available ROM address range,
but the Chinese font sub card actually has this alias, and is used by DOS T5.0. */
}
if (addr >= DA2_FONTROM_SIZE)
return DA2_INVALIDACCESS8;
// da2_log("PS55_MemHnd: Read from mem %x, bank %x, chr %x (%x), val %x\n", da2->fctl[LF_MMIO_MODE], da2->fctl[LF_MMIO_ADDR], addr / 72, addr, da2->mmio.font[addr]);
return da2->mmio.font[addr];
break;
default:
return DA2_INVALIDACCESS8; /* invalid memory access */
break;
}
} else if (!(da2->ioctl[LS_MODE] & 1)) { /* 16 or 256 color mode */
cycles -= video_timing_read_b;
for (int i = 0; i < 8; i++)
da2->gdcla[i] = da2->vram[(addr << 3) | i]; /* read in byte */
// da2_log("da2_Rb: %05x=%02x\n", addr, da2->gdcla[da2->readplane]);
if (da2->gdcreg[LG_MODE] & 0x08) { /* compare data across planes if the read mode bit (3EB 05, bit 3) is 1 */
uint8_t ret = 0;
for (int i = 0; i < 8; i++) {
if (~da2->gdcreg[LG_COLOR_DONT_CARE] & (1 << i)) /* color don't care register */
ret |= da2->gdcla[i] ^ ((da2->gdcreg[LG_COLOR_COMPAREJ] & (1 << i)) ? 0xff : 0);
}
return ~ret;
} else
return da2->gdcla[da2->readplane];
} else { /* text mode 3 */
cycles -= video_timing_read_b;
return da2->vram[addr];
}
}
static uint16_t
da2_mmio_readw(uint32_t addr, void *p)
{
da2_t *da2 = (da2_t *) p;
//da2_log("da2_readW: %x %x %x %x %x\n", da2->ioctl[LS_MMIO], da2->fctl[LF_MMIO_SEL], da2->fctl[LF_MMIO_MODE], da2->fctl[LF_MMIO_ADDR], addr);
if (da2->ioctl[LS_MMIO] & 0x10) {
return (uint16_t) da2_mmio_read(addr, da2) | (uint16_t) (da2_mmio_read(addr + 1, da2) << 8);
} else if (!(da2->ioctl[LS_MODE] & 1)) {/* 16 color or 256 color mode */
cycles -= video_timing_read_w;
addr &= DA2_MASK_MMIO;
for (int i = 0; i < 8; i++)
da2->gdcla[i] = (uint16_t) (da2->vram[(addr << 3) | i]) | ((uint16_t) (da2->vram[((addr << 3) + 8) | i]) << 8); /* read vram into latch */
#ifdef ENABLE_DA2_DEBUGVRAM
////debug
// if (((int)addr - (int)da2->mmrdbg_vidaddr) > 2 || (((int)da2->mmrdbg_vidaddr - (int)addr) > 2) || da2->mmrdbg_vidaddr == addr)
//{
// fprintf(da2->mmrdbg_fp, "\nR %x ", addr);
// for (int i = 0; i <= 0xb; i++)
// fprintf(da2->mmrdbg_fp, "%02x ", da2->gdcreg[i]);
// }
// for (int i = 0; i < 16; i++)
//{
// int pixeldata = 0;
// if (da2->gdcla[da2->readplane] & (1 << (15 - i))) pixeldata = 1;
// fprintf(da2->mmrdbg_fp, "%X", pixeldata);
// }
// da2->mmrdbg_vidaddr = addr;
#endif
if (da2->gdcreg[LG_MODE] & 0x08) { /* compare data across planes if the read mode bit (3EB 05, bit 3) is 1 */
uint16_t ret = 0;
for (int i = 0; i < 8; i++) {
if (~da2->gdcreg[LG_COLOR_DONT_CARE] & (1 << i)) /* color don't care register */
ret |= da2->gdcla[i] ^ ((da2->gdcreg[LG_COLOR_COMPAREJ] & (1 << i)) ? 0xffff : 0);
}
return ~ret;
} else {
// da2_log("da2_Rw: %05x=%04x\n", addr, da2->gdcla[da2->readplane]);
return da2->gdcla[da2->readplane];
}
} else {
return (uint16_t) da2_mmio_read(addr, da2) | (uint16_t) (da2_mmio_read(addr + 1, da2) << 8);
}
}
static void
da2_mmio_write(uint32_t addr, uint8_t val, void *p)
{
da2_t *da2 = (da2_t *) p;
// da2_log("da2_mmio_write %x %x\n", addr, val);
// if ((addr & ~DA2_MASK_MMIO) != 0xA0000)
// return;
addr &= DA2_MASK_MMIO;
if (da2->ioctl[LS_MMIO] & 0x10) {
// if(da2->ioctl[LS_MMIO] == 0x1f) da2_log("mw mem %x, addr %x, val %x, ESDI %x:%x DSSI %x:%x\n", da2->fctl[LF_MMIO_MODE], addr, val, ES, DI, DS, SI);
/* Gaiji RAM */
if (da2->fctl[LF_MMIO_SEL] == 0x80)
addr |= ((uint32_t) da2->fctl[LF_MMIO_ADDR] << 17); /* xxxy yyyy yyyy yyyy yyyy */
else {
uint32_t index = da2->fctl[LF_MMIO_MODE] & 0x0f;
index <<= 8;
index |= da2->fctl[LF_MMIO_ADDR];
addr += index * 0x40;
}
switch (da2->fctl[LF_MMIO_MODE]) {
case 0xb0: /* Gaiji RAM 1011 0000 */
da2->mmio.ram[addr & DA2_MASK_GAIJIRAM] = val;
break;
case 0x10: /* Font ROM 0001 0000 */
/* Read-Only */
break;
case 0x00:
// da2_log("da2_mmio_write %x %x %04X:%04X\n", addr, val, CS, cpu_state.pc);
// addr &= 0x7f;/* OS/2 write addr 1cf80-1cfc3, val xx */
// if (addr >= DA2_BLT_MEMSIZE)
//{
// da2_log("da2_mmio_write failed mem %x, addr %x, val %x\n", da2->fctl[LF_MMIO_MODE], addr, val);
// return;
// }
da2->bitblt.indata = 1;
if (da2->bitblt.payload_addr >= DA2_BLT_MEMSIZE)
da2_log("da2_mmio_write payload overflow! mem %x, addr %x, val %x\n", da2->fctl[LF_MMIO_MODE], addr, val);
else {
da2->bitblt.payload[da2->bitblt.payload_addr] = val;
da2->bitblt.payload_addr++;
}
break;
default:
da2_log("da2_mmio_write failed mem %x, addr %x, val %x\n", da2->fctl[LF_MMIO_MODE], addr, val);
break;
}
} else if (!(da2->ioctl[LS_MODE] & 1)) { /* 16 color or 256 color mode */
uint8_t bitmask;
/* align bitmask to even address */
if (addr & 1) bitmask = da2->gdcreg[LG_BIT_MASK_HIGH];
else bitmask = da2->gdcreg[LG_BIT_MASK_LOW];
#ifdef ENABLE_DA2_DEBUGVRAM
da2_log("da2_wB %x %02x\n", addr, val);
// if (!(da2->gdcreg[LG_COMMAND] & 0x08))
//{
if (((int) addr - (int) da2->mmdbg_vidaddr) > 2 || (((int) da2->mmdbg_vidaddr - (int) addr) > 2) || da2->mmdbg_vidaddr == addr) {
fprintf(da2->mmdbg_fp, "\nB %x %02x ", addr, val);
for (int i = 0; i <= 0xb; i++)
fprintf(da2->mmdbg_fp, "%02x ", da2->gdcreg[i]);
}
for (int i = 0; i < 8; i++) {
int pixeldata = 0;
if (val & (1 << (7 - i)))
pixeldata = (da2->writemask & 0xf);
fprintf(da2->mmdbg_fp, "%X", pixeldata);
}
da2->mmdbg_vidaddr = addr;
//}
#endif
cycles -= video_timing_write_b;
da2->changedvram[addr >> 9] = changeframecount;/* 0x1FFFF -> 0x1F */
addr <<= 3;
for (int i = 0; i < 8; i++)
da2->gdcsrc[i] = da2->gdcla[i]; /* use latch */
// da2_log("da2_Wb m%02x r%02x %05x:%02x %x:%x\n", da2->gdcreg[0x5], da2->gdcreg[LG_COMMAND], addr >> 3, val, cs >> 4, cpu_state.pc);
// da2_log("da2_Wb m%02x r%02x %05x:%02x=%02x%02x%02x%02x->", da2->gdcreg[0x5], da2->gdcreg[LG_COMMAND], addr >> 3, val, da2->vram[addr + 0], da2->vram[addr + 1], da2->vram[addr + 2], da2->vram[addr + 3]);
if (!(da2->gdcreg[LG_COMMAND] & 0x08)) {
for (int i = 0; i < 8; i++)
if (da2->gdcreg[LG_ENABLE_SRJ] & (1 << i))
da2->gdcinput[i] = (da2->gdcreg[LG_SET_RESETJ] & (1 << i)) ? 0xff : 0;
else if (da2->gdcreg[LG_SET_RESETJ] & (1 << i))
da2->gdcinput[i] = ~val;
else
da2->gdcinput[i] = val;
da2_gdcropB(addr, bitmask, da2);
return;
}
switch (da2->writemode) {
case 2: /* equiv to vga write mode 1 */
for (int i = 0; i < 8; i++)
if (da2->writemask & (1 << i))
DA2_vram_w(addr | i, da2->gdcsrc[i], da2);
break;
case 0:/* equiv to vga write mode 0 */
if (da2->gdcreg[LG_DATA_ROTATION] & 7)
val = svga_rotate[da2->gdcreg[LG_DATA_ROTATION] & 7][val];
if (bitmask == 0xff && !(da2->gdcreg[LG_COMMAND] & 0x03) && (!da2->gdcreg[LG_ENABLE_SRJ])) {
for (int i = 0; i < 8; i++)
if (da2->writemask & (1 << i))
DA2_vram_w(addr | i, val, da2);
} else {
for (int i = 0; i < 8; i++)
if (da2->gdcreg[LG_ENABLE_SRJ] & (1 << i))
da2->gdcinput[i] = (da2->gdcreg[LG_SET_RESETJ] & (1 << i)) ? 0xff : 0;
else
da2->gdcinput[i] = val;
for (int i = 0; i < 8; i++)
da2->debug_vramold[i] = da2->vram[addr | i]; /* use latch */
da2_gdcropB(addr, bitmask, da2);
// for (int i = 0; i < 8; i++)
// da2_log("\tsrc %02x in %02x bitm %02x mod %x rop %x: %02x -> %02x\n", da2->gdcsrc[i], da2->gdcinput[i], bitmask, da2->gdcreg[5],da2->gdcreg[LG_COMMAND], da2->debug_vramold[i], da2->vram[addr | i]);//use latch
////da2_log("- %02X %02X %02X %02X %08X\n",vram[addr],vram[addr|0x1],vram[addr|0x2],vram[addr|0x3],addr);
}
break;
case 1:/* equiv to vga write mode 2 */
if (!(da2->gdcreg[LG_COMMAND] & 0x03) && (!da2->gdcreg[LG_ENABLE_SRJ])) {
for (int i = 0; i < 8; i++)
if (da2->writemask & (1 << i))
DA2_vram_w(addr | i, (((val & (1 << i)) ? 0xff : 0) & bitmask) | (da2->gdcsrc[i] & ~bitmask), da2);
//fprintf(da2->mmdbg_fp, "m1-1");
} else {
for (int i = 0; i < 8; i++)
da2->gdcinput[i] = ((val & (1 << i)) ? 0xff : 0);
da2_gdcropB(addr, bitmask, da2);
//fprintf(da2->mmdbg_fp, "m1-2");
}
break;
case 3:/* equiv to vga write mode 3 */
if (da2->gdcreg[LG_DATA_ROTATION] & 7)
val = svga_rotate[da2->gdcreg[LG_DATA_ROTATION] & 7][val];
bitmask &= val;
for (int i = 0; i < 8; i++)
da2->gdcinput[i] = (da2->gdcreg[LG_SET_RESETJ] & (1 << i)) ? 0xff : 0;
da2_gdcropB(addr, bitmask, da2);
break;
}
// da2_log("%02x%02x%02x%02x\n", da2->vram[addr + 0], da2->vram[addr + 1], da2->vram[addr + 2], da2->vram[addr + 3]);
} else { /* mode 3h text */
cycles -= video_timing_write_b;
DA2_vram_w(addr, val, da2);
da2->fullchange = 2;
}
}
uint16_t
rightRotate(uint16_t data, uint8_t count)
{
return (data >> count) | (data << (sizeof(data) * 8 - count));
}
static void
da2_mmio_gc_writeW(uint32_t addr, uint16_t val, void *p)
{
da2_t *da2 = (da2_t *) p;
uint16_t bitmask = da2->gdcreg[LG_BIT_MASK_HIGH];
addr &= DA2_MASK_MMIO;
bitmask <<= 8;
bitmask |= (uint16_t) da2->gdcreg[LG_BIT_MASK_LOW];
#ifdef ENABLE_DA2_DEBUGVRAM
// if (!(da2->gdcreg[LG_COMMAND] & 0x08))
//{
if (((int) addr - (int) da2->mmdbg_vidaddr) > 2 || (((int) da2->mmdbg_vidaddr - (int) addr) > 2) || da2->mmdbg_vidaddr == addr) {
fprintf(da2->mmdbg_fp, "\nW %x ", addr);
for (int i = 0; i <= 0xb; i++)
fprintf(da2->mmdbg_fp, "%02x ", da2->gdcreg[i]);
}
for (int i = 0; i < 16; i++) {
int pixeldata = 0;
if (val & (1 << (15 - i)))
pixeldata = (da2->writemask & 0xf);
fprintf(da2->mmdbg_fp, "%X", pixeldata);
}
da2->mmdbg_vidaddr = addr;
//}
#endif
cycles -= video_timing_write_w;
// da2_log("da2_gcW m%d a%x d%x\n", da2->writemode, addr, val);
// da2_log("da2_gcW %05X %02X %04X:%04X esdi %04X:%04X dssi %04X:%04X\n", addr, val, cs >> 4, cpu_state.pc, ES, DI, DS, SI);
da2->changedvram[addr >> 9] = changeframecount;
// da2->changedvram[(addr + 1) >> 12] = changeframecount;
addr <<= 3;
for (int i = 0; i < 8; i++)
da2->gdcsrc[i] = da2->gdcla[i]; /* use latch */
if (!(da2->gdcreg[LG_COMMAND] & 0x08)) {
for (int i = 0; i < 8; i++)
if (da2->gdcreg[LG_ENABLE_SRJ] & (1 << i))
da2->gdcinput[i] = (da2->gdcreg[LG_SET_RESETJ] & (1 << i)) ? 0xffff : 0;
else if (da2->gdcreg[LG_SET_RESETJ] & (1 << i))
da2->gdcinput[i] = ~val;
else
da2->gdcinput[i] = val;
da2_gdcropW(addr, bitmask, da2);
return;
}
// da2_log("da2_Ww m%02x r%02x %05x:%04x=%02x%02x%02x%02x,%02x%02x%02x%02x->", da2->gdcreg[0x5], da2->gdcreg[LG_COMMAND], addr >> 3, val, da2->vram[addr + 0], da2->vram[addr + 1], da2->vram[addr + 2], da2->vram[addr + 3]
// , da2->vram[addr + 8], da2->vram[addr + 9], da2->vram[addr + 10], da2->vram[addr + 11]);
switch (da2->writemode) {
case 2:
for (int i = 0; i < 8; i++)
if (da2->writemask & (1 << i)) {
DA2_vram_w(addr | i, da2->gdcsrc[i] & 0xff, da2);
DA2_vram_w((addr + 8) | i, da2->gdcsrc[i] >> 8, da2);
}
break;
case 0:
if (da2->gdcreg[LG_DATA_ROTATION] & 15)
val = rightRotate(val, da2->gdcreg[LG_DATA_ROTATION] & 15); // val = svga_rotate[da2->gdcreg[LG_DATA_ROTATION] & 7][val]; TODO this wont work
if (bitmask == 0xffff && !(da2->gdcreg[LG_COMMAND] & 0x03) && (!da2->gdcreg[LG_ENABLE_SRJ])) {
for (int i = 0; i < 8; i++)
if (da2->writemask & (1 << i)) {
DA2_vram_w(addr | i, val & 0xff, da2);
DA2_vram_w((addr + 8) | i, val >> 8, da2);
}
} else {
for (int i = 0; i < 8; i++)
if (da2->gdcreg[LG_ENABLE_SRJ] & (1 << i))
da2->gdcinput[i] = (da2->gdcreg[LG_SET_RESETJ] & (1 << i)) ? 0xffff : 0;
else
da2->gdcinput[i] = val;
da2_gdcropW(addr, bitmask, da2);
// da2_log("- %02X %02X %02X %02X %08X\n",vram[addr],vram[addr|0x1],vram[addr|0x2],vram[addr|0x3],addr);
}
break;
case 1:
if (!(da2->gdcreg[LG_COMMAND] & 0x03) && (!da2->gdcreg[LG_ENABLE_SRJ])) {
for (int i = 0; i < 8; i++)
if (da2->writemask & (1 << i)) {
uint16_t wdata = (((val & (1 << i)) ? 0xffff : 0) & bitmask) | (da2->gdcsrc[i] & ~bitmask);
DA2_vram_w(addr | i, wdata & 0xff, da2);
DA2_vram_w((addr + 8) | i, wdata >> 8, da2);
}
} else {
for (int i = 0; i < 8; i++)
da2->gdcinput[i] = ((val & (1 << i)) ? 0xffff : 0);
da2_gdcropW(addr, bitmask, da2);
}
break;
case 3:
if (da2->gdcreg[LG_DATA_ROTATION] & 15)
val = rightRotate(val, da2->gdcreg[LG_DATA_ROTATION] & 15); // val = svga_rotate[da2->gdcreg[LG_DATA_ROTATION] & 7][val];; TODO this wont work
bitmask &= val;
for (int i = 0; i < 8; i++)
da2->gdcinput[i] = (da2->gdcreg[LG_SET_RESETJ] & (1 << i)) ? 0xffff : 0;
da2_gdcropW(addr, bitmask, da2);
break;
}
// da2_log("%02x%02x%02x%02x,%02x%02x%02x%02x\n", da2->vram[addr + 0], da2->vram[addr + 1], da2->vram[addr + 2], da2->vram[addr + 3]
// , da2->vram[addr + 8], da2->vram[addr + 9], da2->vram[addr + 10], da2->vram[addr + 11]);
}
static void
da2_mmio_writew(uint32_t addr, uint16_t val, void *p)
{
da2_t *da2 = (da2_t *) p;
// if ((addr & ~0x1ffff) != 0xA0000) return;
if (da2->ioctl[LS_MMIO] & 0x10) {
// da2_log("da2_mmio_writeW %x %x %x %x %x %x\n", da2->ioctl[LS_MMIO], da2->fctl[LF_MMIO_SEL], da2->fctl[LF_MMIO_MODE], da2->fctl[LF_MMIO_ADDR], addr, val);
da2_mmio_write(addr, val & 0xff, da2);
da2_mmio_write(addr + 1, val >> 8, da2);
} else if (!(da2->ioctl[LS_MODE] & 1)) { /* 16 color or 256 color mode */
// return;
// da2_log("da2_mmio_writeGW %x %x %x %x %x %x\n", da2->ioctl[LS_MMIO], da2->fctl[LF_MMIO_SEL], da2->fctl[LF_MMIO_MODE], da2->fctl[LF_MMIO_ADDR], addr, val);
da2_mmio_gc_writeW(addr, val, da2);
} else { /* mode 3h text */
// if (addr & 0xff00 == 0) da2_log("da2_mmio_write %x %x %04X:%04X\n", addr, val, CS, cpu_state.pc);
// da2_log("da2_mmio_writeGW %x %x %x %x %x %x\n", da2->ioctl[LS_MMIO], da2->fctl[LF_MMIO_SEL], da2->fctl[LF_MMIO_MODE], da2->fctl[LF_MMIO_ADDR], addr, val);
da2_mmio_write(addr, val & 0xff, da2);
da2_mmio_write(addr + 1, val >> 8, da2);
}
}
static void
da2_code_write(uint32_t addr, uint8_t val, void *p)
{
da2_t *da2 = (da2_t *) p;
// if ((addr & ~0xfff) != 0xE0000) return;
addr &= DA2_MASK_CRAM;
da2->cram[addr] = val;
da2->fullchange = 2;
}
static void
da2_code_writeb(uint32_t addr, uint8_t val, void *p)
{
da2_t *da2 = (da2_t *) p;
// da2_log("DA2_code_writeb: Write to %x, val %x\n", addr, val);
cycles -= video_timing_write_b;
da2_code_write(addr, val, da2);
}
static void
da2_code_writew(uint32_t addr, uint16_t val, void *p)
{
// da2_log("DA2_code_writew: Write to %x, val %x\n", addr, val);
da2_t *da2 = (da2_t *) p;
cycles -= video_timing_write_w;
da2_code_write(addr, val & 0xff, da2);
da2_code_write(addr + 1, val >> 8, da2);
}
static uint8_t
da2_code_read(uint32_t addr, void *p)
{
da2_t *da2 = (da2_t *) p;
// if ((addr & ~DA2_MASK_CRAM) != 0xE0000)
// return DA2_INVALIDACCESS8;
addr &= DA2_MASK_CRAM;
return da2->cram[addr];
}
static uint8_t
da2_code_readb(uint32_t addr, void *p)
{
da2_t *da2 = (da2_t *) p;
cycles -= video_timing_read_b;
return da2_code_read(addr, da2);
}
static uint16_t
da2_code_readw(uint32_t addr, void *p)
{
da2_t *da2 = (da2_t *) p;
cycles -= video_timing_read_w;
return da2_code_read(addr, da2) | (da2_code_read(addr + 1, da2) << 8);
}
void
da2_doblit(int y1, int y2, int wx, int wy, da2_t *da2)
{
if (wx != xsize || wy != ysize) {
xsize = wx;
ysize = wy;
set_screen_size(xsize, ysize);
if (video_force_resize_get())
video_force_resize_set(0);
}
video_blit_memtoscreen(32, 0, xsize, ysize);
frames++;
video_res_x = wx;
video_res_y = wy;
video_bpp = 8;
}
void
da2_poll(void *priv)
{
da2_t *da2 = (da2_t *) priv;
int x;
if (!da2->linepos) {
timer_advance_u64(&da2->timer, da2->dispofftime);
// if (output) printf("Display off %f\n",vidtime);
da2->cgastat |= 1;
da2->linepos = 1;
if (da2->dispon) {
da2->hdisp_on = 1;
da2->ma &= da2->vram_display_mask;
if (da2->firstline == 2000) {
da2->firstline = da2->displine;
video_wait_for_buffer();
}
if (!da2->override)
da2->render(da2);
if (da2->lastline < da2->displine)
da2->lastline = da2->displine;
}
// da2_log("%03i %06X %06X\n", da2->displine, da2->ma,da2->vram_display_mask);
da2->displine++;
// if (da2->interlace)
// da2->displine++;
if ((da2->cgastat & 8) && ((da2->displine & 0xf) == (da2->crtc[LC_VERTICAL_SYNC_END] & 0xf)) && da2->vslines) {
// da2_log("Vsync off at line %i\n",displine);
da2->cgastat &= ~8;
}
da2->vslines++;
if (da2->displine > 1200)
da2->displine = 0;
// da2_log("Col is %08X %08X %08X %i %i %08X\n",((uint32_t *)buffer32->line[displine])[320],((uint32_t *)buffer32->line[displine])[321],((uint32_t *)buffer32->line[displine])[322],
// displine, vc, ma);
} else {
// da2_log("VC %i ma %05X\n", da2->vc, da2->ma);
timer_advance_u64(&da2->timer, da2->dispontime);
// if (output) printf("Display on %f\n",vidtime);
if (da2->dispon)
da2->cgastat &= ~1;
da2->hdisp_on = 0;
da2->linepos = 0;
if (da2->sc == (da2->crtc[LC_CURSOR_ROW_END] & 31))
da2->con = 0;
if (da2->dispon) {
if (da2->sc == da2->rowcount) {
da2->linecountff = 0;
da2->sc = 0;
da2->maback += (da2->rowoffset << 1); /* color = 0x50(80), mono = 0x40(64) */
if (da2->interlace)
da2->maback += (da2->rowoffset << 1);
da2->maback &= da2->vram_display_mask;
da2->ma = da2->maback;
} else {
da2->sc++;
da2->sc &= 31;
da2->ma = da2->maback;
}
}
da2->vc++;
da2->vc &= 2047;
if (da2->vc == da2->dispend) {
da2->dispon = 0;
// if (da2->crtc[10] & 0x20) da2->cursoron = 0;
// else da2->cursoron = da2->blink & 16;
if (da2->ioctl[LS_MODE] & 1) { /* in text mode */
if (da2->attrc[LV_CURSOR_CONTROL] & 0x01) /* cursor blinking */
{
da2->cursoron = (da2->blink | 1) & da2->blinkconf;
} else {
da2->cursoron = 0;
}
if (!(da2->blink & (0x10 - 1))) /* force redrawing for cursor and blink attribute */
da2->fullchange = 2;
}
da2->blink++;
for (x = 0; x <= (DA2_MASK_VRAMPLANE >> 9); x++) {
if (da2->changedvram[x])
da2->changedvram[x]--;
}
// memset(changedvram,0,2048); del
if (da2->fullchange) {
da2->fullchange--;
}
}
if (da2->vc == da2->vsyncstart) {
int wx, wy;
// da2_log("VC vsync %i %i\n", da2->firstline_draw, da2->lastline_draw);
da2->dispon = 0;
da2->cgastat |= 8;
x = da2->hdisp;
// if (da2->interlace && !da2->oddeven) da2->lastline++;
// if (da2->interlace && da2->oddeven) da2->firstline--;
wx = x;
wy = da2->lastline - da2->firstline;
da2_doblit(da2->firstline_draw, da2->lastline_draw + 1, wx, wy, da2);
da2->firstline = 2000;
da2->lastline = 0;
da2->firstline_draw = 2000;
da2->lastline_draw = 0;
da2->oddeven ^= 1;
changeframecount = da2->interlace ? 3 : 2;
da2->vslines = 0;
// if (da2->interlace && da2->oddeven) da2->ma = da2->maback = da2->ma_latch + (da2->rowoffset << 1) + ((da2->crtc[5] & 0x60) >> 5);
// else da2->ma = da2->maback = da2->ma_latch + ((da2->crtc[5] & 0x60) >> 5);
// da2->ca = ((da2->crtc[0xe] << 8) | da2->crtc[0xf]) + ((da2->crtc[0xb] & 0x60) >> 5) + da2->ca_adj;
/* if (da2->interlace && da2->oddeven) da2->ma = da2->maback = da2->ma_latch;
else*/
da2->ma
= da2->maback = da2->ma_latch;
da2->ca = ((da2->crtc[LC_CURSOR_LOC_HIGH] << 8) | da2->crtc[LC_CURSOR_LOC_LOWJ]) + da2->ca_adj;
da2->ma <<= 1;
da2->maback <<= 1;
da2->ca <<= 1;
// da2_log("Addr %08X vson %03X vsoff %01X %02X %02X %02X %i %i\n",ma,da2_vsyncstart,crtc[0x11]&0xF,crtc[0xD],crtc[0xC],crtc[0x33], da2_interlace, oddeven);
}
if (da2->vc == da2->vtotal) {
// da2_log("VC vtotal\n");
// printf("Frame over at line %i %i %i %i\n",displine,vc,da2_vsyncstart,da2_dispend);
da2->vc = 0;
da2->sc = da2->crtc[LC_PRESET_ROW_SCANJ] & 0x1f;
da2->dispon = 1;
da2->displine = (da2->interlace && da2->oddeven) ? 1 : 0;
da2->scrollcache = da2->attrc[LV_PANNING] & 7;
}
if (da2->sc == (da2->crtc[LC_CURSOR_ROW_START] & 31))
da2->con = 1;
}
// printf("2 %i\n",da2_vsyncstart);
// da2_log("da2_poll %i %i %i %i %i %i %i\n", ins, da2->dispofftime, da2->dispontime, da2->vidtime, cyc_total, da2->linepos, da2->vc);
// da2_log("r");
}
static void
da2_loadfont(char *fname, void *p)
{
da2_t *da2 = (da2_t *) p;
uint8_t buf;
uint64_t fsize;
if (!fname)
return;
if (*fname == '\0')
return;
FILE *mfile = rom_fopen(fname, "rb");
if (!mfile) {
// da2_log("MSG: Can't open binary ROM font file: %s\n", fname);
return;
}
fseek(mfile, 0, SEEK_END);
fsize = ftell(mfile); /* get filesize */
fseek(mfile, 0, SEEK_SET);
if (fsize > DA2_FONTROM_SIZE) {
fsize = DA2_FONTROM_SIZE; /* truncate read data */
// da2_log("MSG: The binary ROM font is truncated: %s\n", fname);
// fclose(mfile);
// return 1;
}
uint32_t j = 0;
while (ftell(mfile) < fsize) {
fread(&buf, sizeof(uint8_t), 1, mfile);
da2->mmio.font[j] = buf;
j++;
}
fclose(mfile);
return;
}
/* 12-bit DAC color palette for IBMJ Display Adapter with color monitor */
static uint8_t ps55_palette_color[64][3] = {
{ 0x00, 0x00, 0x00 }, { 0x00, 0x00, 0x2A }, { 0x00, 0x2A, 0x00 }, { 0x00, 0x2A, 0x2A },
{ 0x2A, 0x00, 0x00 }, { 0x2A, 0x00, 0x2A }, { 0x2A, 0x2A, 0x00 }, { 0x2A, 0x2A, 0x2A },
{ 0x00, 0x00, 0x15 }, { 0x00, 0x00, 0x3F }, { 0x00, 0x2A, 0x15 }, { 0x00, 0x2A, 0x3F },
{ 0x2A, 0x00, 0x15 }, { 0x2A, 0x00, 0x3F }, { 0x2A, 0x2A, 0x15 }, { 0x2A, 0x2A, 0x3F },
{ 0x00, 0x15, 0x00 }, { 0x00, 0x15, 0x2A }, { 0x00, 0x3F, 0x00 }, { 0x00, 0x3F, 0x2A },
{ 0x2A, 0x15, 0x00 }, { 0x2A, 0x15, 0x2A }, { 0x2A, 0x3F, 0x00 }, { 0x2A, 0x3F, 0x2A },
{ 0x00, 0x15, 0x15 }, { 0x00, 0x15, 0x3F }, { 0x00, 0x3F, 0x15 }, { 0x00, 0x3F, 0x3F },
{ 0x2A, 0x15, 0x15 }, { 0x2A, 0x15, 0x3F }, { 0x2A, 0x3F, 0x15 }, { 0x2A, 0x3F, 0x3F },
{ 0x15, 0x00, 0x00 }, { 0x15, 0x00, 0x2A }, { 0x15, 0x2A, 0x00 }, { 0x15, 0x2A, 0x2A },
{ 0x3F, 0x00, 0x00 }, { 0x3F, 0x00, 0x2A }, { 0x3F, 0x2A, 0x00 }, { 0x3F, 0x2A, 0x2A },
{ 0x15, 0x00, 0x15 }, { 0x15, 0x00, 0x3F }, { 0x15, 0x2A, 0x15 }, { 0x15, 0x2A, 0x3F },
{ 0x3F, 0x00, 0x15 }, { 0x3F, 0x00, 0x3F }, { 0x3F, 0x2A, 0x15 }, { 0x3F, 0x2A, 0x3F },
{ 0x15, 0x15, 0x00 }, { 0x15, 0x15, 0x2A }, { 0x15, 0x3F, 0x00 }, { 0x15, 0x3F, 0x2A },
{ 0x3F, 0x15, 0x00 }, { 0x3F, 0x15, 0x2A }, { 0x3F, 0x3F, 0x00 }, { 0x3F, 0x3F, 0x2A },
{ 0x15, 0x15, 0x15 }, { 0x15, 0x15, 0x3F }, { 0x15, 0x3F, 0x15 }, { 0x15, 0x3F, 0x3F },
{ 0x3F, 0x15, 0x15 }, { 0x3F, 0x15, 0x3F }, { 0x3F, 0x3F, 0x15 }, { 0x3F, 0x3F, 0x3F }
};
void
da2_reset_ioctl(da2_t *da2)
{
da2->ioctl[LS_RESET] = 0x00; /* Bit 0: Reset sequencer */
da2_outw(LS_INDEX, 0x0302, da2); /* Index 02, Bit 1: VGA passthrough, Bit 0: Character Mode */
da2_outw(LS_INDEX, 0x0008, da2); /* Index 08, Bit 0: Enable MMIO */
}
static void
da2_reset(void *priv)
{
da2_t *da2 = (da2_t *) priv;
/* Initialize drawing */
da2->bitblt.exec = DA2_BLT_CIDLE;
da2->render = da2_render_blank;
da2_reset_ioctl(da2);
da2->pos_regs[0] = DA2_POSID_L; /* Adapter Identification Byte (Low byte) */
da2->pos_regs[1] = DA2_POSID_H; /* Adapter Identification Byte (High byte) */
da2->pos_regs[2] = 0x40; /* Bit 7-5: 010=Mono, 100=Color, Bit 0 : Card Enable (set by reference diskette) */
da2->ioctl[LS_CONFIG1] = OldLSI | Page_Two; /* Configuration 1 : DA-II, 1024 KB */
da2->ioctl[LS_CONFIG1] |= ((da2->monitorid & 0x8) << 1); /* Configuration 1 : Monitor ID 3 */
da2->ioctl[LS_CONFIG2] = (da2->monitorid & 0x7); /* Configuration 2: Monitor ID 0-2 */
da2->fctl[0] = 0x2b; /* 3E3h:0 */
da2->fctl[LF_MMIO_MODE] = 0xb0; /* 3E3h:0bh */
da2->attrc[LV_CURSOR_COLOR] = 0x0f; /* cursor color */
da2->crtc[LC_HORIZONTAL_TOTAL] = 63; /* Horizontal Total */
da2->crtc[LC_VERTICAL_TOTALJ] = 255; /* Vertical Total (These two must be set before the timer starts.) */
da2->ma_latch = 0;
da2->interlace = 0;
da2->attrc[LV_CURSOR_CONTROL] = 0x13; /* cursor options */
da2->attr_palette_enable = 0; /* disable attribute generator */
/* Set default color palette (Windows 3.1 display driver won't reset palette) */
for (int i = 0; i < 256; i++) {
da2->vgapal[i].r = ps55_palette_color[i & 0x3F][0];
da2->vgapal[i].g = ps55_palette_color[i & 0x3F][1];
da2->vgapal[i].b = ps55_palette_color[i & 0x3F][2];
da2->pallook[i] = makecol32((da2->vgapal[i].r & 0x3f) * 4, (da2->vgapal[i].g & 0x3f) * 4, (da2->vgapal[i].b & 0x3f) * 4);
}
da2_log("da2_reset done.\n");
}
static void *
da2_init(UNUSED(const device_t *info))
{
if (svga_get_pri() == NULL)
return NULL;
svga_t *mb_vga = svga_get_pri();
mb_vga->cable_connected = 0;
da2_t *da2 = calloc(1, sizeof(da2_t));
da2->mb_vga = mb_vga;
da2->dispontime = 1000ull << 32;
da2->dispofftime = 1000ull << 32;
da2->vram = calloc(1, DA2_SIZE_VRAM);
da2->cram = calloc(1, DA2_SIZE_CRAM);
da2->vram_display_mask = DA2_MASK_CRAM;
da2->monitorid = device_get_config_int("montype");
da2->changedvram = calloc(1, (DA2_MASK_VRAMPLANE + 1) >> 9); /* XX000h */
da2->mmio.charset = device_get_config_int("charset");
da2->mmio.font = malloc(DA2_FONTROM_SIZE);
switch (da2->mmio.charset) {
case DA2_DCONFIG_CHARSET_HANT:
da2_loadfont(DA2_FONTROM_PATH_HANT, da2);
break;
case DA2_DCONFIG_CHARSET_JPAN:
da2_loadfont(DA2_FONTROM_PATH_JPAN, da2);
/* Add magic code for OS/2 J1.3. This disables BitBlt's text drawing function. */
da2->mmio.font[0x1AFFE] = 0x80;
da2->mmio.font[0x1AFFF] = 0x01;
break;
}
mca_add(da2_mca_read, da2_mca_write, da2_mca_feedb, da2_mca_reset, da2);
da2->da2const = (uint64_t) ((cpuclock / DA2_PIXELCLOCK) * (double) (1ull << 32));
memset(da2->bitblt.payload, 0x00, DA2_BLT_MEMSIZE);
memset(da2->bitblt.reg, 0xfe, DA2_BLT_REGSIZE * sizeof(uint32_t)); /* clear memory */
#ifdef ENABLE_DA2_DEBUGBLT
da2->bitblt.debug_reg = malloc(DA2_DEBUG_BLTLOG_MAX * DA2_DEBUG_BLTLOG_SIZE);
da2->bitblt.debug_reg_ip = 0;
#endif
#ifdef ENABLE_DA2_DEBUGVRAM
da2->mmdbg_fp = fopen("da2_mmiowdat.txt", "w");
da2->mmrdbg_fp = fopen("da2_mmiordat.txt", "w");
#endif
da2->bitblt.payload_addr = 0;
da2_reset(da2);
mem_mapping_add(&da2->mmio.mapping, 0xA0000, 0x20000, da2_mmio_read, da2_mmio_readw, NULL, da2_mmio_write, da2_mmio_writew, NULL, NULL, MEM_MAPPING_EXTERNAL, da2);
// da2_log("DA2mmio new mapping: %X, base: %x, size: %x\n", &da2->mmio.mapping, da2->mmio.mapping.base, da2->mmio.mapping.size);
mem_mapping_disable(&da2->mmio.mapping);
mem_mapping_add(&da2->cmapping, 0xE0000, 0x1000, da2_code_readb, da2_code_readw, NULL, da2_code_writeb, da2_code_writew, NULL, NULL, MEM_MAPPING_EXTERNAL, da2);
mem_mapping_disable(&da2->cmapping);
timer_add(&da2->timer, da2_poll, da2, 0);
da2->bitblt.timerspeed = 10ull * TIMER_USEC;
timer_add(&da2->bitblt.timer, da2_bitblt_dopayload, da2, 0);
return da2;
}
static int
da2_available(void)
{
return (rom_present(DA2_FONTROM_PATH_HANT) || rom_present(DA2_FONTROM_PATH_JPAN));
}
void
da2_close(void *p)
{
da2_t *da2 = (da2_t *) p;
/* dump mem for debug */
#ifdef ENABLE_DA2_LOG
FILE *f;
f = fopen("da2_cram.dmp", "wb");
if (f != NULL) {
fwrite(da2->cram, DA2_SIZE_CRAM, 1, f);
fclose(f);
}
f = fopen("da2_vram.dmp", "wb");
if (f != NULL) {
fwrite(da2->vram, DA2_SIZE_VRAM, 1, f);
fclose(f);
}
f = fopen("da2_gram.dmp", "wb");
if (f != NULL) {
fwrite(da2->mmio.ram, DA2_SIZE_GAIJIRAM, 1, f);
fclose(f);
}
f = fopen("da2_attrpal.dmp", "wb");
if (f != NULL) {
fwrite(da2->attrc, 32, 1, f);
fclose(f);
}
f = fopen("da2_dacrgb.dmp", "wb");
if (f != NULL) {
fwrite(da2->vgapal, 3 * 256, 1, f);
fclose(f);
}
f = fopen("da2_daregs.txt", "w");
if (f != NULL) {
for (int i = 0; i < 0x10; i++)
fprintf(f, "3e1(ioctl) %02X: %4X\n", i, da2->ioctl[i]);
for (int i = 0; i < 0x20; i++)
fprintf(f, "3e3(fctl) %02X: %4X\n", i, da2->fctl[i]);
for (int i = 0; i < 0x20; i++)
fprintf(f, "3e5(crtc) %02X: %4X\n", i, da2->crtc[i]);
for (int i = 0; i < 0x40; i++)
fprintf(f, "3e8(attr) %02X: %4X\n", i, da2->attrc[i]);
for (int i = 0; i < 0x10; i++)
fprintf(f, "3eb(gcr) %02X: %4X\n", i, da2->gdcreg[i]);
for (int i = 0; i < 0x10; i++)
fprintf(f, "3ee(?) %02X: %4X\n", i, da2->reg3ee[i]);
fclose(f);
}
#endif
#ifdef ENABLE_DA2_DEBUGBLT
f = fopen("da2_bltdump.csv", "w");
if (f != NULL && da2->bitblt.debug_reg_ip > 0) {
/* print header */
for (int y = 0; y < DA2_DEBUG_BLTLOG_SIZE; y++) {
if (da2->bitblt.debug_reg[(da2->bitblt.debug_reg_ip - 1) * DA2_DEBUG_BLTLOG_SIZE + y] != DA2_DEBUG_BLT_NEVERUSED)
fprintf(f, "\"%02X\"\t", y);
}
fprintf(f, "\n");
/* print data */
for (int x = 0; x < da2->bitblt.debug_reg_ip; x++) {
for (int y = 0; y < DA2_DEBUG_BLTLOG_SIZE; y++) {
if (da2->bitblt.debug_reg[x * DA2_DEBUG_BLTLOG_SIZE + y] == DA2_DEBUG_BLT_NEVERUSED)
;
else if (da2->bitblt.debug_reg[x * DA2_DEBUG_BLTLOG_SIZE + y] == DA2_DEBUG_BLT_USEDRESET)
fprintf(f, "\"\"\t");
else
fprintf(f, "\"%X\"\t", da2->bitblt.debug_reg[x * DA2_DEBUG_BLTLOG_SIZE + y]);
}
fprintf(f, "\n");
}
fclose(f);
}
free(da2->bitblt.debug_reg);
#endif
#ifdef ENABLE_DA2_DEBUGVRAM
if (da2->mmdbg_fp != NULL)
fclose(da2->mmdbg_fp);
if (da2->mmrdbg_fp != NULL)
fclose(da2->mmrdbg_fp);
#endif
free(da2->cram);
free(da2->vram);
free(da2->changedvram);
free(da2->mmio.font);
free(da2);
}
void
da2_speed_changed(void *p)
{
da2_t *da2 = (da2_t *) p;
da2->da2const = (uint64_t) ((cpuclock / DA2_PIXELCLOCK) * (double) (1ull << 32));
da2_recalctimings(da2);
}
void
da2_force_redraw(void *p)
{
da2_t *da2 = (da2_t *) p;
da2->fullchange = changeframecount;
}
static const device_config_t da2_configuration[] = {
// clang-format off
{
.name = "charset",
.description = "Charset",
.type = CONFIG_SELECTION,
.default_int = DA2_DCONFIG_CHARSET_JPAN,
.selection = {
{
.description = "932 (Japanese)",
.value = DA2_DCONFIG_CHARSET_JPAN
},
{
.description = "938 (Traditional Chinese)",
.value = DA2_DCONFIG_CHARSET_HANT
},
{ .description = "" }
}
},
{
.name = "montype",
.description = "Monitor type",
.type = CONFIG_SELECTION,
.default_int = DA2_DCONFIG_MONTYPE_COLOR,
.selection = {
{
.description = "Color",
.value = DA2_DCONFIG_MONTYPE_COLOR
},
{
.description = "IBM 8515",
.value = DA2_DCONFIG_MONTYPE_8515
},
{
.description = "Grayscale",
.value = DA2_DCONFIG_MONTYPE_MONO
},
{ .description = "" }
}
},
{ .name = "", .description = "", .type = CONFIG_END }
// clang-format on
};
const device_t ps55da2_device = {
.name = "IBM Display Adapter II (MCA)",
.internal_name = "ps55da2",
.flags = DEVICE_MCA,
.local = 0,
.init = da2_init,
.close = da2_close,
.reset = da2_reset,
.available = da2_available,
.speed_changed = da2_speed_changed,
.force_redraw = da2_force_redraw,
.config = da2_configuration
};
void
da2_device_add(void)
{
if (!da2_standalone_enabled)
return;
if (machine_has_bus(machine, MACHINE_BUS_MCA))
device_add(&ps55da2_device);
else
return;
}
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