/*
* 86Box A hypervisor and IBM PC system emulator that specializes in
* running old operating systems and software designed for IBM
* PC systems and compatibles from 1981 through fairly recent
* system designs based on the PCI bus.
*
* This file is part of the 86Box distribution.
*
* Emulation of Tandy models 1000, 1000HX and 1000SL2.
*
*
*
* Authors: Sarah Walker,
* Miran Grca,
*
* Copyright 2008-2019 Sarah Walker.
* Copyright 2016-2019 Miran Grca.
*/
#include
#include
#include
#include
#include
#include
#include
#define HAVE_STDARG_H
#include <86box/86box.h>
#include <86box/timer.h>
#include <86box/io.h>
#include <86box/pit.h>
#include <86box/nmi.h>
#include <86box/mem.h>
#include <86box/rom.h>
#include <86box/device.h>
#include <86box/nvr.h>
#include <86box/fdd.h>
#include <86box/fdc.h>
#include <86box/fdc_ext.h>
#include <86box/gameport.h>
#include <86box/keyboard.h>
#include <86box/sound.h>
#include <86box/snd_sn76489.h>
#include <86box/video.h>
#include <86box/vid_cga_comp.h>
#include <86box/machine.h>
#include <86box/plat_unused.h>
enum {
TANDY_RGB = 0,
TANDY_COMPOSITE
};
enum {
TYPE_TANDY = 0,
TYPE_TANDY1000SX,
TYPE_TANDY1000HX,
TYPE_TANDY1000SL2
};
enum {
EEPROM_IDLE = 0,
EEPROM_GET_OPERATION,
EEPROM_READ,
EEPROM_WRITE
};
typedef struct t1kvid_t {
mem_mapping_t mapping;
mem_mapping_t vram_mapping;
uint8_t crtc[32];
int crtcreg;
int array_index;
uint8_t array[256];
int memctrl;
uint8_t mode;
uint8_t col;
uint8_t stat;
uint8_t *vram;
uint8_t *b8000;
uint32_t b8000_mask;
uint32_t b8000_limit;
uint8_t planar_ctrl;
int linepos;
int displine;
int sc;
int vc;
int dispon;
int con;
int coff;
int cursoron;
int blink;
int fullchange;
int vsynctime;
int vadj;
uint16_t ma;
uint16_t maback;
uint64_t dispontime;
uint64_t dispofftime;
pc_timer_t timer;
int firstline;
int lastline;
int composite;
} t1kvid_t;
typedef struct t1keep_t {
char *path;
int state;
int count;
int addr;
int clk;
uint16_t data;
uint16_t store[64];
} t1keep_t;
typedef struct tandy_t {
mem_mapping_t ram_mapping;
mem_mapping_t rom_mapping; /* SL2 */
uint8_t *rom; /* SL2 */
uint8_t ram_bank;
uint8_t rom_bank; /* SL2 */
int rom_offset; /* SL2 */
uint32_t base;
uint32_t mask;
int is_hx;
int is_sl2;
t1kvid_t *vid;
} tandy_t;
static video_timings_t timing_dram = { VIDEO_BUS, 0, 0, 0, 0, 0, 0 }; /*No additional waitstates*/
static const scancode scancode_tandy[512] = {
// clang-format off
{ .mk = { 0 }, .brk = { 0 } }, /* 000 */
{ .mk = { 0x01, 0 }, .brk = { 0x81, 0 } }, /* 001 */
{ .mk = { 0x02, 0 }, .brk = { 0x82, 0 } }, /* 002 */
{ .mk = { 0x03, 0 }, .brk = { 0x83, 0 } }, /* 003 */
{ .mk = { 0x04, 0 }, .brk = { 0x84, 0 } }, /* 004 */
{ .mk = { 0x05, 0 }, .brk = { 0x85, 0 } }, /* 005 */
{ .mk = { 0x06, 0 }, .brk = { 0x86, 0 } }, /* 006 */
{ .mk = { 0x07, 0 }, .brk = { 0x87, 0 } }, /* 007 */
{ .mk = { 0x08, 0 }, .brk = { 0x88, 0 } }, /* 008 */
{ .mk = { 0x09, 0 }, .brk = { 0x89, 0 } }, /* 009 */
{ .mk = { 0x0a, 0 }, .brk = { 0x8a, 0 } }, /* 00a */
{ .mk = { 0x0b, 0 }, .brk = { 0x8b, 0 } }, /* 00b */
{ .mk = { 0x0c, 0 }, .brk = { 0x8c, 0 } }, /* 00c */
{ .mk = { 0x0d, 0 }, .brk = { 0x8d, 0 } }, /* 00d */
{ .mk = { 0x0e, 0 }, .brk = { 0x8e, 0 } }, /* 00e */
{ .mk = { 0x0f, 0 }, .brk = { 0x8f, 0 } }, /* 00f */
{ .mk = { 0x10, 0 }, .brk = { 0x90, 0 } }, /* 010 */
{ .mk = { 0x11, 0 }, .brk = { 0x91, 0 } }, /* 011 */
{ .mk = { 0x12, 0 }, .brk = { 0x92, 0 } }, /* 013 */
{ .mk = { 0x13, 0 }, .brk = { 0x93, 0 } }, /* 013 */
{ .mk = { 0x14, 0 }, .brk = { 0x94, 0 } }, /* 014 */
{ .mk = { 0x15, 0 }, .brk = { 0x95, 0 } }, /* 015 */
{ .mk = { 0x16, 0 }, .brk = { 0x96, 0 } }, /* 016 */
{ .mk = { 0x17, 0 }, .brk = { 0x97, 0 } }, /* 017 */
{ .mk = { 0x18, 0 }, .brk = { 0x98, 0 } }, /* 018 */
{ .mk = { 0x19, 0 }, .brk = { 0x99, 0 } }, /* 019 */
{ .mk = { 0x1a, 0 }, .brk = { 0x9a, 0 } }, /* 01a */
{ .mk = { 0x1b, 0 }, .brk = { 0x9b, 0 } }, /* 01b */
{ .mk = { 0x1c, 0 }, .brk = { 0x9c, 0 } }, /* 01c */
{ .mk = { 0x1d, 0 }, .brk = { 0x9d, 0 } }, /* 01d */
{ .mk = { 0x1e, 0 }, .brk = { 0x9e, 0 } }, /* 01e */
{ .mk = { 0x1f, 0 }, .brk = { 0x9f, 0 } }, /* 01f */
{ .mk = { 0x20, 0 }, .brk = { 0xa0, 0 } }, /* 020 */
{ .mk = { 0x21, 0 }, .brk = { 0xa1, 0 } }, /* 021 */
{ .mk = { 0x22, 0 }, .brk = { 0xa2, 0 } }, /* 022 */
{ .mk = { 0x23, 0 }, .brk = { 0xa3, 0 } }, /* 023 */
{ .mk = { 0x24, 0 }, .brk = { 0xa4, 0 } }, /* 024 */
{ .mk = { 0x25, 0 }, .brk = { 0xa5, 0 } }, /* 025 */
{ .mk = { 0x26, 0 }, .brk = { 0xa6, 0 } }, /* 026 */
{ .mk = { 0x27, 0 }, .brk = { 0xa7, 0 } }, /* 027 */
{ .mk = { 0x28, 0 }, .brk = { 0xa8, 0 } }, /* 028 */
{ .mk = { 0x29, 0 }, .brk = { 0xa9, 0 } }, /* 029 */
{ .mk = { 0x2a, 0 }, .brk = { 0xaa, 0 } }, /* 02a */
{ .mk = { 0x2b, 0 }, .brk = { 0xab, 0 } }, /* 02b */
{ .mk = { 0x2c, 0 }, .brk = { 0xac, 0 } }, /* 02c */
{ .mk = { 0x2d, 0 }, .brk = { 0xad, 0 } }, /* 02d */
{ .mk = { 0x2e, 0 }, .brk = { 0xae, 0 } }, /* 02e */
{ .mk = { 0x2f, 0 }, .brk = { 0xaf, 0 } }, /* 02f */
{ .mk = { 0x30, 0 }, .brk = { 0xb0, 0 } }, /* 030 */
{ .mk = { 0x31, 0 }, .brk = { 0xb1, 0 } }, /* 031 */
{ .mk = { 0x32, 0 }, .brk = { 0xb2, 0 } }, /* 032 */
{ .mk = { 0x33, 0 }, .brk = { 0xb3, 0 } }, /* 033 */
{ .mk = { 0x34, 0 }, .brk = { 0xb4, 0 } }, /* 034 */
{ .mk = { 0x35, 0 }, .brk = { 0xb5, 0 } }, /* 035 */
{ .mk = { 0x36, 0 }, .brk = { 0xb6, 0 } }, /* 036 */
{ .mk = { 0x37, 0 }, .brk = { 0xb7, 0 } }, /* 037 */
{ .mk = { 0x38, 0 }, .brk = { 0xb8, 0 } }, /* 038 */
{ .mk = { 0x39, 0 }, .brk = { 0xb9, 0 } }, /* 039 */
{ .mk = { 0x3a, 0 }, .brk = { 0xba, 0 } }, /* 03a */
{ .mk = { 0x3b, 0 }, .brk = { 0xbb, 0 } }, /* 03b */
{ .mk = { 0x3c, 0 }, .brk = { 0xbc, 0 } }, /* 03c */
{ .mk = { 0x3d, 0 }, .brk = { 0xbd, 0 } }, /* 03d */
{ .mk = { 0x3e, 0 }, .brk = { 0xbe, 0 } }, /* 03e */
{ .mk = { 0x3f, 0 }, .brk = { 0xbf, 0 } }, /* 03f */
{ .mk = { 0x40, 0 }, .brk = { 0xc0, 0 } }, /* 040 */
{ .mk = { 0x41, 0 }, .brk = { 0xc1, 0 } }, /* 041 */
{ .mk = { 0x42, 0 }, .brk = { 0xc2, 0 } }, /* 042 */
{ .mk = { 0x43, 0 }, .brk = { 0xc3, 0 } }, /* 043 */
{ .mk = { 0x44, 0 }, .brk = { 0xc4, 0 } }, /* 044 */
{ .mk = { 0x45, 0 }, .brk = { 0xc5, 0 } }, /* 045 */
{ .mk = { 0x46, 0 }, .brk = { 0xc6, 0 } }, /* 046 */
{ .mk = { 0x47, 0 }, .brk = { 0xc7, 0 } }, /* 047 */
{ .mk = { 0x48, 0 }, .brk = { 0xc8, 0 } }, /* 048 */
{ .mk = { 0x49, 0 }, .brk = { 0xc9, 0 } }, /* 049 */
{ .mk = { 0x4a, 0 }, .brk = { 0xca, 0 } }, /* 04a */
{ .mk = { 0x4b, 0 }, .brk = { 0xcb, 0 } }, /* 04b */
{ .mk = { 0x4c, 0 }, .brk = { 0xcc, 0 } }, /* 04c */
{ .mk = { 0x4d, 0 }, .brk = { 0xcd, 0 } }, /* 04d */
{ .mk = { 0x4e, 0 }, .brk = { 0xce, 0 } }, /* 04e */
{ .mk = { 0x4f, 0 }, .brk = { 0xcf, 0 } }, /* 04f */
{ .mk = { 0x50, 0 }, .brk = { 0xd0, 0 } }, /* 050 */
{ .mk = { 0x51, 0 }, .brk = { 0xd1, 0 } }, /* 051 */
{ .mk = { 0x52, 0 }, .brk = { 0xd2, 0 } }, /* 052 */
{ .mk = { 0x56, 0 }, .brk = { 0xd6, 0 } }, /* 053 */
{ .mk = { 0 }, .brk = { 0 } }, /* 054 */
{ .mk = { 0 }, .brk = { 0 } }, /* 055 */
{ .mk = { 0 }, .brk = { 0 } }, /* 056 */
{ .mk = { 0 }, .brk = { 0 } }, /* 057 */
{ .mk = { 0 }, .brk = { 0 } }, /* 058 */
{ .mk = { 0 }, .brk = { 0 } }, /* 059 */
{ .mk = { 0 }, .brk = { 0 } }, /* 05a */
{ .mk = { 0 }, .brk = { 0 } }, /* 05b */
{ .mk = { 0 }, .brk = { 0 } }, /* 05c */
{ .mk = { 0 }, .brk = { 0 } }, /* 05d */
{ .mk = { 0 }, .brk = { 0 } }, /* 05e */
{ .mk = { 0 }, .brk = { 0 } }, /* 05f */
{ .mk = { 0 }, .brk = { 0 } }, /* 060 */
{ .mk = { 0 }, .brk = { 0 } }, /* 061 */
{ .mk = { 0 }, .brk = { 0 } }, /* 062 */
{ .mk = { 0 }, .brk = { 0 } }, /* 063 */
{ .mk = { 0 }, .brk = { 0 } }, /* 064 */
{ .mk = { 0 }, .brk = { 0 } }, /* 065 */
{ .mk = { 0 }, .brk = { 0 } }, /* 066 */
{ .mk = { 0 }, .brk = { 0 } }, /* 067 */
{ .mk = { 0 }, .brk = { 0 } }, /* 068 */
{ .mk = { 0 }, .brk = { 0 } }, /* 069 */
{ .mk = { 0 }, .brk = { 0 } }, /* 06a */
{ .mk = { 0 }, .brk = { 0 } }, /* 06b */
{ .mk = { 0 }, .brk = { 0 } }, /* 06c */
{ .mk = { 0 }, .brk = { 0 } }, /* 06d */
{ .mk = { 0 }, .brk = { 0 } }, /* 06e */
{ .mk = { 0 }, .brk = { 0 } }, /* 06f */
{ .mk = { 0 }, .brk = { 0 } }, /* 070 */
{ .mk = { 0 }, .brk = { 0 } }, /* 071 */
{ .mk = { 0 }, .brk = { 0 } }, /* 072 */
{ .mk = { 0 }, .brk = { 0 } }, /* 073 */
{ .mk = { 0 }, .brk = { 0 } }, /* 074 */
{ .mk = { 0 }, .brk = { 0 } }, /* 075 */
{ .mk = { 0 }, .brk = { 0 } }, /* 076 */
{ .mk = { 0 }, .brk = { 0 } }, /* 077 */
{ .mk = { 0 }, .brk = { 0 } }, /* 078 */
{ .mk = { 0 }, .brk = { 0 } }, /* 079 */
{ .mk = { 0 }, .brk = { 0 } }, /* 07a */
{ .mk = { 0 }, .brk = { 0 } }, /* 07b */
{ .mk = { 0 }, .brk = { 0 } }, /* 07c */
{ .mk = { 0 }, .brk = { 0 } }, /* 07d */
{ .mk = { 0 }, .brk = { 0 } }, /* 07e */
{ .mk = { 0 }, .brk = { 0 } }, /* 07f */
{ .mk = { 0 }, .brk = { 0 } }, /* 080 */
{ .mk = { 0 }, .brk = { 0 } }, /* 081 */
{ .mk = { 0 }, .brk = { 0 } }, /* 082 */
{ .mk = { 0 }, .brk = { 0 } }, /* 083 */
{ .mk = { 0 }, .brk = { 0 } }, /* 084 */
{ .mk = { 0 }, .brk = { 0 } }, /* 085 */
{ .mk = { 0 }, .brk = { 0 } }, /* 086 */
{ .mk = { 0 }, .brk = { 0 } }, /* 087 */
{ .mk = { 0 }, .brk = { 0 } }, /* 088 */
{ .mk = { 0 }, .brk = { 0 } }, /* 089 */
{ .mk = { 0 }, .brk = { 0 } }, /* 08a */
{ .mk = { 0 }, .brk = { 0 } }, /* 08b */
{ .mk = { 0 }, .brk = { 0 } }, /* 08c */
{ .mk = { 0 }, .brk = { 0 } }, /* 08d */
{ .mk = { 0 }, .brk = { 0 } }, /* 08e */
{ .mk = { 0 }, .brk = { 0 } }, /* 08f */
{ .mk = { 0 }, .brk = { 0 } }, /* 090 */
{ .mk = { 0 }, .brk = { 0 } }, /* 091 */
{ .mk = { 0 }, .brk = { 0 } }, /* 092 */
{ .mk = { 0 }, .brk = { 0 } }, /* 093 */
{ .mk = { 0 }, .brk = { 0 } }, /* 094 */
{ .mk = { 0 }, .brk = { 0 } }, /* 095 */
{ .mk = { 0 }, .brk = { 0 } }, /* 096 */
{ .mk = { 0 }, .brk = { 0 } }, /* 097 */
{ .mk = { 0 }, .brk = { 0 } }, /* 098 */
{ .mk = { 0 }, .brk = { 0 } }, /* 099 */
{ .mk = { 0 }, .brk = { 0 } }, /* 09a */
{ .mk = { 0 }, .brk = { 0 } }, /* 09b */
{ .mk = { 0 }, .brk = { 0 } }, /* 09c */
{ .mk = { 0 }, .brk = { 0 } }, /* 09d */
{ .mk = { 0 }, .brk = { 0 } }, /* 09e */
{ .mk = { 0 }, .brk = { 0 } }, /* 09f */
{ .mk = { 0 }, .brk = { 0 } }, /* 0a0 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0a1 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0a2 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0a3 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0a4 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0a5 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0a6 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0a7 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0a8 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0a9 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0aa */
{ .mk = { 0 }, .brk = { 0 } }, /* 0ab */
{ .mk = { 0 }, .brk = { 0 } }, /* 0ac */
{ .mk = { 0 }, .brk = { 0 } }, /* 0ad */
{ .mk = { 0 }, .brk = { 0 } }, /* 0ae */
{ .mk = { 0 }, .brk = { 0 } }, /* 0af */
{ .mk = { 0 }, .brk = { 0 } }, /* 0b0 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0b1 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0b2 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0b3 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0b4 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0b5 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0b6 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0b7 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0b8 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0b9 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0ba */
{ .mk = { 0 }, .brk = { 0 } }, /* 0bb */
{ .mk = { 0 }, .brk = { 0 } }, /* 0bc */
{ .mk = { 0 }, .brk = { 0 } }, /* 0bd */
{ .mk = { 0 }, .brk = { 0 } }, /* 0be */
{ .mk = { 0 }, .brk = { 0 } }, /* 0bf */
{ .mk = { 0 }, .brk = { 0 } }, /* 0c0 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0c1 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0c2 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0c3 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0c4 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0c5 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0c6 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0c7 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0c8 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0c9 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0ca */
{ .mk = { 0 }, .brk = { 0 } }, /* 0cb */
{ .mk = { 0 }, .brk = { 0 } }, /* 0cc */
{ .mk = { 0 }, .brk = { 0 } }, /* 0cd */
{ .mk = { 0 }, .brk = { 0 } }, /* 0ce */
{ .mk = { 0 }, .brk = { 0 } }, /* 0cf */
{ .mk = { 0 }, .brk = { 0 } }, /* 0d0 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0d1 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0d2 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0d3 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0d4 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0d5 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0d6 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0d7 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0d8 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0d9 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0da */
{ .mk = { 0 }, .brk = { 0 } }, /* 0db */
{ .mk = { 0 }, .brk = { 0 } }, /* 0dc */
{ .mk = { 0 }, .brk = { 0 } }, /* 0dd */
{ .mk = { 0 }, .brk = { 0 } }, /* 0de */
{ .mk = { 0 }, .brk = { 0 } }, /* 0df */
{ .mk = { 0 }, .brk = { 0 } }, /* 0e0 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0e1 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0e2 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0e3 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0e4 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0e5 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0e6 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0e7 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0e8 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0e9 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0ea */
{ .mk = { 0 }, .brk = { 0 } }, /* 0eb */
{ .mk = { 0 }, .brk = { 0 } }, /* 0ec */
{ .mk = { 0 }, .brk = { 0 } }, /* 0ed */
{ .mk = { 0 }, .brk = { 0 } }, /* 0ee */
{ .mk = { 0 }, .brk = { 0 } }, /* 0ef */
{ .mk = { 0 }, .brk = { 0 } }, /* 0f0 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0f1 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0f2 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0f3 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0f4 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0f5 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0f6 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0f7 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0f8 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0f9 */
{ .mk = { 0 }, .brk = { 0 } }, /* 0fa */
{ .mk = { 0 }, .brk = { 0 } }, /* 0fb */
{ .mk = { 0 }, .brk = { 0 } }, /* 0fc */
{ .mk = { 0 }, .brk = { 0 } }, /* 0fd */
{ .mk = { 0 }, .brk = { 0 } }, /* 0fe */
{ .mk = { 0 }, .brk = { 0 } }, /* 0ff */
{ .mk = { 0 }, .brk = { 0 } }, /* 100 */
{ .mk = { 0 }, .brk = { 0 } }, /* 101 */
{ .mk = { 0 }, .brk = { 0 } }, /* 102 */
{ .mk = { 0 }, .brk = { 0 } }, /* 103 */
{ .mk = { 0 }, .brk = { 0 } }, /* 104 */
{ .mk = { 0 }, .brk = { 0 } }, /* 105 */
{ .mk = { 0 }, .brk = { 0 } }, /* 106 */
{ .mk = { 0 }, .brk = { 0 } }, /* 107 */
{ .mk = { 0 }, .brk = { 0 } }, /* 108 */
{ .mk = { 0 }, .brk = { 0 } }, /* 109 */
{ .mk = { 0 }, .brk = { 0 } }, /* 10a */
{ .mk = { 0 }, .brk = { 0 } }, /* 10b */
{ .mk = { 0 }, .brk = { 0 } }, /* 10c */
{ .mk = { 0 }, .brk = { 0 } }, /* 10d */
{ .mk = { 0 }, .brk = { 0 } }, /* 10e */
{ .mk = { 0 }, .brk = { 0 } }, /* 10f */
{ .mk = { 0 }, .brk = { 0 } }, /* 110 */
{ .mk = { 0 }, .brk = { 0 } }, /* 111 */
{ .mk = { 0 }, .brk = { 0 } }, /* 112 */
{ .mk = { 0 }, .brk = { 0 } }, /* 113 */
{ .mk = { 0 }, .brk = { 0 } }, /* 114 */
{ .mk = { 0 }, .brk = { 0 } }, /* 115 */
{ .mk = { 0 }, .brk = { 0 } }, /* 116 */
{ .mk = { 0 }, .brk = { 0 } }, /* 117 */
{ .mk = { 0 }, .brk = { 0 } }, /* 118 */
{ .mk = { 0 }, .brk = { 0 } }, /* 119 */
{ .mk = { 0 }, .brk = { 0 } }, /* 11a */
{ .mk = { 0 }, .brk = { 0 } }, /* 11b */
{ .mk = { 0x57, 0 }, .brk = { 0xd7, 0 } }, /* 11c */
{ .mk = { 0 }, .brk = { 0 } }, /* 11d */
{ .mk = { 0 }, .brk = { 0 } }, /* 11e */
{ .mk = { 0 }, .brk = { 0 } }, /* 11f */
{ .mk = { 0 }, .brk = { 0 } }, /* 120 */
{ .mk = { 0 }, .brk = { 0 } }, /* 121 */
{ .mk = { 0 }, .brk = { 0 } }, /* 122 */
{ .mk = { 0 }, .brk = { 0 } }, /* 123 */
{ .mk = { 0 }, .brk = { 0 } }, /* 124 */
{ .mk = { 0 }, .brk = { 0 } }, /* 125 */
{ .mk = { 0 }, .brk = { 0 } }, /* 126 */
{ .mk = { 0 }, .brk = { 0 } }, /* 127 */
{ .mk = { 0 }, .brk = { 0 } }, /* 128 */
{ .mk = { 0 }, .brk = { 0 } }, /* 129 */
{ .mk = { 0 }, .brk = { 0 } }, /* 12a */
{ .mk = { 0 }, .brk = { 0 } }, /* 12b */
{ .mk = { 0 }, .brk = { 0 } }, /* 12c */
{ .mk = { 0 }, .brk = { 0 } }, /* 12d */
{ .mk = { 0 }, .brk = { 0 } }, /* 12e */
{ .mk = { 0 }, .brk = { 0 } }, /* 12f */
{ .mk = { 0 }, .brk = { 0 } }, /* 130 */
{ .mk = { 0 }, .brk = { 0 } }, /* 131 */
{ .mk = { 0 }, .brk = { 0 } }, /* 132 */
{ .mk = { 0 }, .brk = { 0 } }, /* 133 */
{ .mk = { 0 }, .brk = { 0 } }, /* 134 */
{ .mk = { 0x35, 0 }, .brk = { 0xb5, 0 } }, /* 135 */
{ .mk = { 0 }, .brk = { 0 } }, /* 136 */
{ .mk = { 0x37, 0 }, .brk = { 0xb7, 0 } }, /* 137 */
{ .mk = { 0x38, 0 }, .brk = { 0xb8, 0 } }, /* 138 */
{ .mk = { 0 }, .brk = { 0 } }, /* 139 */
{ .mk = { 0 }, .brk = { 0 } }, /* 13a */
{ .mk = { 0 }, .brk = { 0 } }, /* 13b */
{ .mk = { 0 }, .brk = { 0 } }, /* 13c */
{ .mk = { 0 }, .brk = { 0 } }, /* 13d */
{ .mk = { 0 }, .brk = { 0 } }, /* 13e */
{ .mk = { 0 }, .brk = { 0 } }, /* 13f */
{ .mk = { 0 }, .brk = { 0 } }, /* 140 */
{ .mk = { 0 }, .brk = { 0 } }, /* 141 */
{ .mk = { 0 }, .brk = { 0 } }, /* 142 */
{ .mk = { 0 }, .brk = { 0 } }, /* 143 */
{ .mk = { 0 }, .brk = { 0 } }, /* 144 */
{ .mk = { 0 }, .brk = { 0 } }, /* 145 */
{ .mk = { 0x46, 0 }, .brk = { 0xc6, 0 } }, /* 146 */
{ .mk = { 0x47, 0 }, .brk = { 0xc7, 0 } }, /* 147 */
{ .mk = { 0x29, 0 }, .brk = { 0xa9, 0 } }, /* 148 */
{ .mk = { 0x49, 0 }, .brk = { 0xc9, 0 } }, /* 149 */
{ .mk = { 0 }, .brk = { 0 } }, /* 14a */
{ .mk = { 0x2b, 0 }, .brk = { 0xab, 0 } }, /* 14b */
{ .mk = { 0 }, .brk = { 0 } }, /* 14c */
{ .mk = { 0x4e, 0 }, .brk = { 0xce, 0 } }, /* 14d */
{ .mk = { 0 }, .brk = { 0 } }, /* 14e */
{ .mk = { 0x4f, 0 }, .brk = { 0xcf, 0 } }, /* 14f */
{ .mk = { 0x4a, 0 }, .brk = { 0xca, 0 } }, /* 150 */
{ .mk = { 0x51, 0 }, .brk = { 0xd1, 0 } }, /* 151 */
{ .mk = { 0x52, 0 }, .brk = { 0xd2, 0 } }, /* 152 */
{ .mk = { 0x53, 0 }, .brk = { 0xd3, 0 } }, /* 153 */
{ .mk = { 0 }, .brk = { 0 } }, /* 154 */
{ .mk = { 0 }, .brk = { 0 } }, /* 155 */
{ .mk = { 0 }, .brk = { 0 } }, /* 156 */
{ .mk = { 0 }, .brk = { 0 } }, /* 157 */
{ .mk = { 0 }, .brk = { 0 } }, /* 158 */
{ .mk = { 0 }, .brk = { 0 } }, /* 159 */
{ .mk = { 0 }, .brk = { 0 } }, /* 15a */
{ .mk = { 0 }, .brk = { 0 } }, /* 15b */
{ .mk = { 0 }, .brk = { 0 } }, /* 15c */
{ .mk = { 0 }, .brk = { 0 } }, /* 15d */
{ .mk = { 0 }, .brk = { 0 } }, /* 15e */
{ .mk = { 0 }, .brk = { 0 } }, /* 15f */
{ .mk = { 0 }, .brk = { 0 } }, /* 160 */
{ .mk = { 0 }, .brk = { 0 } }, /* 161 */
{ .mk = { 0 }, .brk = { 0 } }, /* 162 */
{ .mk = { 0 }, .brk = { 0 } }, /* 163 */
{ .mk = { 0 }, .brk = { 0 } }, /* 164 */
{ .mk = { 0 }, .brk = { 0 } }, /* 165 */
{ .mk = { 0 }, .brk = { 0 } }, /* 166 */
{ .mk = { 0 }, .brk = { 0 } }, /* 167 */
{ .mk = { 0 }, .brk = { 0 } }, /* 168 */
{ .mk = { 0 }, .brk = { 0 } }, /* 169 */
{ .mk = { 0 }, .brk = { 0 } }, /* 16a */
{ .mk = { 0 }, .brk = { 0 } }, /* 16b */
{ .mk = { 0 }, .brk = { 0 } }, /* 16c */
{ .mk = { 0 }, .brk = { 0 } }, /* 16d */
{ .mk = { 0 }, .brk = { 0 } }, /* 16e */
{ .mk = { 0 }, .brk = { 0 } }, /* 16f */
{ .mk = { 0 }, .brk = { 0 } }, /* 170 */
{ .mk = { 0 }, .brk = { 0 } }, /* 171 */
{ .mk = { 0 }, .brk = { 0 } }, /* 172 */
{ .mk = { 0 }, .brk = { 0 } }, /* 173 */
{ .mk = { 0 }, .brk = { 0 } }, /* 174 */
{ .mk = { 0 }, .brk = { 0 } }, /* 175 */
{ .mk = { 0 }, .brk = { 0 } }, /* 176 */
{ .mk = { 0 }, .brk = { 0 } }, /* 177 */
{ .mk = { 0 }, .brk = { 0 } }, /* 178 */
{ .mk = { 0 }, .brk = { 0 } }, /* 179 */
{ .mk = { 0 }, .brk = { 0 } }, /* 17a */
{ .mk = { 0 }, .brk = { 0 } }, /* 17b */
{ .mk = { 0 }, .brk = { 0 } }, /* 17c */
{ .mk = { 0 }, .brk = { 0 } }, /* 17d */
{ .mk = { 0 }, .brk = { 0 } }, /* 17e */
{ .mk = { 0 }, .brk = { 0 } }, /* 17f */
{ .mk = { 0 }, .brk = { 0 } }, /* 180 */
{ .mk = { 0 }, .brk = { 0 } }, /* 181 */
{ .mk = { 0 }, .brk = { 0 } }, /* 182 */
{ .mk = { 0 }, .brk = { 0 } }, /* 183 */
{ .mk = { 0 }, .brk = { 0 } }, /* 184 */
{ .mk = { 0 }, .brk = { 0 } }, /* 185 */
{ .mk = { 0 }, .brk = { 0 } }, /* 186 */
{ .mk = { 0 }, .brk = { 0 } }, /* 187 */
{ .mk = { 0 }, .brk = { 0 } }, /* 188 */
{ .mk = { 0 }, .brk = { 0 } }, /* 189 */
{ .mk = { 0 }, .brk = { 0 } }, /* 18a */
{ .mk = { 0 }, .brk = { 0 } }, /* 18b */
{ .mk = { 0 }, .brk = { 0 } }, /* 18c */
{ .mk = { 0 }, .brk = { 0 } }, /* 18d */
{ .mk = { 0 }, .brk = { 0 } }, /* 18e */
{ .mk = { 0 }, .brk = { 0 } }, /* 18f */
{ .mk = { 0 }, .brk = { 0 } }, /* 190 */
{ .mk = { 0 }, .brk = { 0 } }, /* 191 */
{ .mk = { 0 }, .brk = { 0 } }, /* 192 */
{ .mk = { 0 }, .brk = { 0 } }, /* 193 */
{ .mk = { 0 }, .brk = { 0 } }, /* 194 */
{ .mk = { 0 }, .brk = { 0 } }, /* 195 */
{ .mk = { 0 }, .brk = { 0 } }, /* 196 */
{ .mk = { 0 }, .brk = { 0 } }, /* 197 */
{ .mk = { 0 }, .brk = { 0 } }, /* 198 */
{ .mk = { 0 }, .brk = { 0 } }, /* 199 */
{ .mk = { 0 }, .brk = { 0 } }, /* 19a */
{ .mk = { 0 }, .brk = { 0 } }, /* 19b */
{ .mk = { 0 }, .brk = { 0 } }, /* 19c */
{ .mk = { 0 }, .brk = { 0 } }, /* 19d */
{ .mk = { 0 }, .brk = { 0 } }, /* 19e */
{ .mk = { 0 }, .brk = { 0 } }, /* 19f */
{ .mk = { 0 }, .brk = { 0 } }, /* 1a0 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1a1 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1a2 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1a3 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1a4 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1a5 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1a6 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1a7 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1a8 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1a9 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1aa */
{ .mk = { 0 }, .brk = { 0 } }, /* 1ab */
{ .mk = { 0 }, .brk = { 0 } }, /* 1ac */
{ .mk = { 0 }, .brk = { 0 } }, /* 1ad */
{ .mk = { 0 }, .brk = { 0 } }, /* 1ae */
{ .mk = { 0 }, .brk = { 0 } }, /* 1af */
{ .mk = { 0 }, .brk = { 0 } }, /* 1b0 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1b1 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1b2 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1b3 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1b4 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1b5 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1b6 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1b7 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1b8 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1b9 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1ba */
{ .mk = { 0 }, .brk = { 0 } }, /* 1bb */
{ .mk = { 0 }, .brk = { 0 } }, /* 1bc */
{ .mk = { 0 }, .brk = { 0 } }, /* 1bd */
{ .mk = { 0 }, .brk = { 0 } }, /* 1be */
{ .mk = { 0 }, .brk = { 0 } }, /* 1bf */
{ .mk = { 0 }, .brk = { 0 } }, /* 1c0 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1c1 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1c2 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1c3 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1c4 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1c5 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1c6 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1c7 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1c8 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1c9 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1ca */
{ .mk = { 0 }, .brk = { 0 } }, /* 1cb */
{ .mk = { 0 }, .brk = { 0 } }, /* 1cc */
{ .mk = { 0 }, .brk = { 0 } }, /* 1cd */
{ .mk = { 0 }, .brk = { 0 } }, /* 1ce */
{ .mk = { 0 }, .brk = { 0 } }, /* 1cf */
{ .mk = { 0 }, .brk = { 0 } }, /* 1d0 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1d1 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1d2 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1d3 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1d4 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1d5 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1d6 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1d7 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1d8 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1d9 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1da */
{ .mk = { 0 }, .brk = { 0 } }, /* 1db */
{ .mk = { 0 }, .brk = { 0 } }, /* 1dc */
{ .mk = { 0 }, .brk = { 0 } }, /* 1dd */
{ .mk = { 0 }, .brk = { 0 } }, /* 1de */
{ .mk = { 0 }, .brk = { 0 } }, /* 1df */
{ .mk = { 0 }, .brk = { 0 } }, /* 1e0 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1e1 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1e2 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1e3 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1e4 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1e5 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1e6 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1e7 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1e8 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1e9 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1ea */
{ .mk = { 0 }, .brk = { 0 } }, /* 1eb */
{ .mk = { 0 }, .brk = { 0 } }, /* 1ec */
{ .mk = { 0 }, .brk = { 0 } }, /* 1ed */
{ .mk = { 0 }, .brk = { 0 } }, /* 1ee */
{ .mk = { 0 }, .brk = { 0 } }, /* 1ef */
{ .mk = { 0 }, .brk = { 0 } }, /* 1f0 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1f1 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1f2 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1f3 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1f4 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1f5 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1f6 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1f7 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1f8 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1f9 */
{ .mk = { 0 }, .brk = { 0 } }, /* 1fa */
{ .mk = { 0 }, .brk = { 0 } }, /* 1fb */
{ .mk = { 0 }, .brk = { 0 } }, /* 1fc */
{ .mk = { 0 }, .brk = { 0 } }, /* 1fd */
{ .mk = { 0 }, .brk = { 0 } }, /* 1fe */
{ .mk = { 0 }, .brk = { 0 } } /* 1ff */
// clang-format on
};
static uint8_t crtcmask[32] = {
0xff, 0xff, 0xff, 0xff, 0x7f, 0x1f, 0x7f, 0x7f,
0xf3, 0x1f, 0x7f, 0x1f, 0x3f, 0xff, 0x3f, 0xff,
0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
static uint8_t crtcmask_sl[32] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, 0xff, 0xff,
0xf3, 0x1f, 0x7f, 0x1f, 0x3f, 0xff, 0x3f, 0xff,
0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
static int eep_data_out;
static uint8_t vid_in(uint16_t addr, void *priv);
static void vid_out(uint16_t addr, uint8_t val, void *priv);
#ifdef ENABLE_TANDY_LOG
int tandy_do_log = ENABLE_TANDY_LOG;
static void
tandy_log(const char *fmt, ...)
{
va_list ap;
if (tandy_do_log) {
va_start(ap, fmt);
pclog_ex(fmt, ap);
va_end(ap);
}
}
#else
# define tandy_log(fmt, ...)
#endif
static void
recalc_mapping(tandy_t *dev)
{
t1kvid_t *vid = dev->vid;
mem_mapping_disable(&vid->mapping);
io_removehandler(0x03d0, 16,
vid_in, NULL, NULL, vid_out, NULL, NULL, dev);
if (vid->planar_ctrl & 4) {
mem_mapping_enable(&vid->mapping);
if (vid->array[5] & 1)
mem_mapping_set_addr(&vid->mapping, 0xa0000, 0x10000);
else
mem_mapping_set_addr(&vid->mapping, 0xb8000, 0x8000);
io_sethandler(0x03d0, 16, vid_in, NULL, NULL, vid_out, NULL, NULL, dev);
}
}
static void
recalc_timings(tandy_t *dev)
{
t1kvid_t *vid = dev->vid;
double _dispontime;
double _dispofftime;
double disptime;
disptime = vid->crtc[0] + 1;
_dispontime = vid->crtc[1];
_dispofftime = disptime - _dispontime;
_dispontime *= CGACONST;
_dispofftime *= CGACONST;
vid->dispontime = (uint64_t) (_dispontime);
vid->dispofftime = (uint64_t) (_dispofftime);
}
static void
recalc_address(tandy_t *dev)
{
t1kvid_t *vid = dev->vid;
if ((vid->memctrl & 0xc0) == 0xc0) {
vid->vram = &ram[((vid->memctrl & 0x06) << 14) + dev->base];
vid->b8000 = &ram[((vid->memctrl & 0x30) << 11) + dev->base];
vid->b8000_mask = 0x7fff;
} else {
vid->vram = &ram[((vid->memctrl & 0x07) << 14) + dev->base];
vid->b8000 = &ram[((vid->memctrl & 0x38) << 11) + dev->base];
vid->b8000_mask = 0x3fff;
}
}
static void
recalc_address_sl(tandy_t *dev)
{
t1kvid_t *vid = dev->vid;
vid->b8000_limit = 0x8000;
if (vid->array[5] & 1) {
vid->vram = &ram[((vid->memctrl & 0x04) << 14) + dev->base];
vid->b8000 = &ram[((vid->memctrl & 0x20) << 11) + dev->base];
} else if ((vid->memctrl & 0xc0) == 0xc0) {
vid->vram = &ram[((vid->memctrl & 0x06) << 14) + dev->base];
vid->b8000 = &ram[((vid->memctrl & 0x30) << 11) + dev->base];
} else {
vid->vram = &ram[((vid->memctrl & 0x07) << 14) + dev->base];
vid->b8000 = &ram[((vid->memctrl & 0x38) << 11) + dev->base];
if ((vid->memctrl & 0x38) == 0x38)
vid->b8000_limit = 0x4000;
}
}
static void
vid_out(uint16_t addr, uint8_t val, void *priv)
{
tandy_t *dev = (tandy_t *) priv;
t1kvid_t *vid = dev->vid;
uint8_t old;
if ((addr >= 0x3d0) && (addr <= 0x3d7))
addr = (addr & 0xff9) | 0x004;
switch (addr) {
case 0x03d4:
vid->crtcreg = val & 0x1f;
break;
case 0x03d5:
old = vid->crtc[vid->crtcreg];
if (dev->is_sl2)
vid->crtc[vid->crtcreg] = val & crtcmask_sl[vid->crtcreg];
else
vid->crtc[vid->crtcreg] = val & crtcmask[vid->crtcreg];
if (old != val) {
if (vid->crtcreg < 0xe || vid->crtcreg > 0x10) {
vid->fullchange = changeframecount;
recalc_timings(dev);
}
}
break;
case 0x03d8:
vid->mode = val;
if (!dev->is_sl2)
update_cga16_color(vid->mode);
break;
case 0x03d9:
vid->col = val;
break;
case 0x03da:
vid->array_index = val & 0x1f;
break;
case 0x03de:
if (vid->array_index & 16)
val &= 0xf;
vid->array[vid->array_index & 0x1f] = val;
if (dev->is_sl2) {
if ((vid->array_index & 0x1f) == 5) {
recalc_mapping(dev);
recalc_address_sl(dev);
}
}
break;
case 0x03df:
vid->memctrl = val;
if (dev->is_sl2)
recalc_address_sl(dev);
else
recalc_address(dev);
break;
case 0x0065:
if (val == 8)
return; /*Hack*/
vid->planar_ctrl = val;
recalc_mapping(dev);
break;
default:
break;
}
}
static uint8_t
vid_in(uint16_t addr, void *priv)
{
const tandy_t *dev = (tandy_t *) priv;
const t1kvid_t *vid = dev->vid;
uint8_t ret = 0xff;
if ((addr >= 0x3d0) && (addr <= 0x3d7))
addr = (addr & 0xff9) | 0x004;
switch (addr) {
case 0x03d4:
ret = vid->crtcreg;
break;
case 0x03d5:
ret = vid->crtc[vid->crtcreg];
break;
case 0x03da:
ret = vid->stat;
break;
default:
break;
}
return ret;
}
static void
vid_write(uint32_t addr, uint8_t val, void *priv)
{
tandy_t *dev = (tandy_t *) priv;
t1kvid_t *vid = dev->vid;
if (vid->memctrl == -1)
return;
if (dev->is_sl2) {
if (vid->array[5] & 1)
vid->b8000[addr & 0xffff] = val;
else {
if ((addr & 0x7fff) < vid->b8000_limit)
vid->b8000[addr & 0x7fff] = val;
}
} else {
vid->b8000[addr & vid->b8000_mask] = val;
}
}
static uint8_t
vid_read(uint32_t addr, void *priv)
{
const tandy_t *dev = (tandy_t *) priv;
const t1kvid_t *vid = dev->vid;
if (vid->memctrl == -1)
return 0xff;
if (dev->is_sl2) {
if (vid->array[5] & 1)
return (vid->b8000[addr & 0xffff]);
if ((addr & 0x7fff) < vid->b8000_limit)
return (vid->b8000[addr & 0x7fff]);
else
return 0xff;
} else {
return (vid->b8000[addr & vid->b8000_mask]);
}
}
static void
vid_poll(void *priv)
{
tandy_t *dev = (tandy_t *) priv;
t1kvid_t *vid = dev->vid;
uint16_t ca = (vid->crtc[15] | (vid->crtc[14] << 8)) & 0x3fff;
int drawcursor;
int x;
int c;
int xs_temp;
int ys_temp;
int oldvc;
uint8_t chr;
uint8_t attr;
uint16_t dat;
int cols[4];
int col;
int oldsc;
if (!vid->linepos) {
timer_advance_u64(&vid->timer, vid->dispofftime);
vid->stat |= 1;
vid->linepos = 1;
oldsc = vid->sc;
if ((vid->crtc[8] & 3) == 3)
vid->sc = (vid->sc << 1) & 7;
if (vid->dispon) {
if (vid->displine < vid->firstline) {
vid->firstline = vid->displine;
video_wait_for_buffer();
}
vid->lastline = vid->displine;
cols[0] = (vid->array[2] & 0xf) + 16;
for (c = 0; c < 8; c++) {
if (vid->array[3] & 4) {
buffer32->line[vid->displine << 1][c] = buffer32->line[(vid->displine << 1) + 1][c] = cols[0];
if (vid->mode & 1) {
buffer32->line[vid->displine << 1][c + (vid->crtc[1] << 3) + 8] = buffer32->line[(vid->displine << 1) + 1][c + (vid->crtc[1] << 3) + 8] = cols[0];
} else {
buffer32->line[vid->displine << 1][c + (vid->crtc[1] << 4) + 8] = buffer32->line[(vid->displine << 1) + 1][c + (vid->crtc[1] << 4) + 8] = cols[0];
}
} else if ((vid->mode & 0x12) == 0x12) {
buffer32->line[vid->displine << 1][c] = buffer32->line[(vid->displine << 1) + 1][c] = 0;
if (vid->mode & 1) {
buffer32->line[vid->displine << 1][c + (vid->crtc[1] << 3) + 8] = buffer32->line[(vid->displine << 1) + 1][c + (vid->crtc[1] << 3) + 8] = 0;
} else {
buffer32->line[vid->displine << 1][c + (vid->crtc[1] << 4) + 8] = buffer32->line[(vid->displine << 1) + 1][c + (vid->crtc[1] << 4) + 8] = 0;
}
} else {
buffer32->line[vid->displine << 1][c] = buffer32->line[(vid->displine << 1) + 1][c] = (vid->col & 15) + 16;
if (vid->mode & 1) {
buffer32->line[vid->displine << 1][c + (vid->crtc[1] << 3) + 8] = buffer32->line[(vid->displine << 1) + 1][c + (vid->crtc[1] << 3) + 8] = (vid->col & 15) + 16;
} else {
buffer32->line[vid->displine << 1][c + (vid->crtc[1] << 4) + 8] = buffer32->line[(vid->displine << 1) + 1][c + (vid->crtc[1] << 4) + 8] = (vid->col & 15) + 16;
}
}
}
if (dev->is_sl2 && (vid->array[5] & 1)) { /*640x200x16*/
for (x = 0; x < vid->crtc[1] * 2; x++) {
dat = (vid->vram[(vid->ma << 1) & 0xffff] << 8) | vid->vram[((vid->ma << 1) + 1) & 0xffff];
vid->ma++;
buffer32->line[vid->displine << 1][(x << 2) + 8] = buffer32->line[(vid->displine << 1) + 1][(x << 2) + 8] = vid->array[((dat >> 12) & 0xf) + 16] + 16;
buffer32->line[vid->displine << 1][(x << 2) + 9] = buffer32->line[(vid->displine << 1) + 1][(x << 2) + 9] = vid->array[((dat >> 8) & 0xf) + 16] + 16;
buffer32->line[vid->displine << 1][(x << 2) + 10] = buffer32->line[(vid->displine << 1) + 1][(x << 2) + 10] = vid->array[((dat >> 4) & 0xf) + 16] + 16;
buffer32->line[vid->displine << 1][(x << 2) + 11] = buffer32->line[(vid->displine << 1) + 1][(x << 2) + 11] = vid->array[(dat & 0xf) + 16] + 16;
}
} else if ((vid->array[3] & 0x10) && (vid->mode & 1)) { /*320x200x16*/
for (x = 0; x < vid->crtc[1]; x++) {
dat = (vid->vram[((vid->ma << 1) & 0x1fff) + ((vid->sc & 3) * 0x2000)] << 8) | vid->vram[((vid->ma << 1) & 0x1fff) + ((vid->sc & 3) * 0x2000) + 1];
vid->ma++;
buffer32->line[vid->displine << 1][(x << 3) + 8] = buffer32->line[(vid->displine << 1) + 1][(x << 3) + 8] = buffer32->line[vid->displine << 1][(x << 3) + 9] = buffer32->line[(vid->displine << 1) + 1][(x << 3) + 9] = vid->array[((dat >> 12) & vid->array[1] & 0x0f) + 16] + 16;
buffer32->line[vid->displine << 1][(x << 3) + 10] = buffer32->line[(vid->displine << 1) + 1][(x << 3) + 10] = buffer32->line[vid->displine << 1][(x << 3) + 11] = buffer32->line[(vid->displine << 1) + 1][(x << 3) + 11] = vid->array[((dat >> 8) & vid->array[1] & 0x0f) + 16] + 16;
buffer32->line[vid->displine << 1][(x << 3) + 12] = buffer32->line[(vid->displine << 1) + 1][(x << 3) + 12] = buffer32->line[vid->displine << 1][(x << 3) + 13] = buffer32->line[(vid->displine << 1) + 1][(x << 3) + 13] = vid->array[((dat >> 4) & vid->array[1] & 0x0f) + 16] + 16;
buffer32->line[vid->displine << 1][(x << 3) + 14] = buffer32->line[(vid->displine << 1) + 1][(x << 3) + 14] = buffer32->line[vid->displine << 1][(x << 3) + 15] = buffer32->line[(vid->displine << 1) + 1][(x << 3) + 15] = vid->array[(dat & vid->array[1] & 0x0f) + 16] + 16;
}
} else if (vid->array[3] & 0x10) { /*160x200x16*/
for (x = 0; x < vid->crtc[1]; x++) {
if (dev->is_sl2) {
dat = (vid->vram[((vid->ma << 1) & 0x1fff) + ((vid->sc & 1) * 0x2000)] << 8) | vid->vram[((vid->ma << 1) & 0x1fff) + ((vid->sc & 1) * 0x2000) + 1];
} else {
dat = (vid->vram[((vid->ma << 1) & 0x1fff) + ((vid->sc & 3) * 0x2000)] << 8) | vid->vram[((vid->ma << 1) & 0x1fff) + ((vid->sc & 3) * 0x2000) + 1];
}
vid->ma++;
buffer32->line[vid->displine << 1][(x << 4) + 8] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + 8] = buffer32->line[vid->displine << 1][(x << 4) + 9] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + 9] = buffer32->line[vid->displine << 1][(x << 4) + 10] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + 10] = buffer32->line[vid->displine << 1][(x << 4) + 11] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + 11] = vid->array[((dat >> 12) & vid->array[1] & 0x0f) + 16] + 16;
buffer32->line[vid->displine << 1][(x << 4) + 12] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + 12] = buffer32->line[vid->displine << 1][(x << 4) + 13] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + 13] = buffer32->line[vid->displine << 1][(x << 4) + 14] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + 14] = buffer32->line[vid->displine << 1][(x << 4) + 15] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + 15] = vid->array[((dat >> 8) & vid->array[1] & 0x0f) + 16] + 16;
buffer32->line[vid->displine << 1][(x << 4) + 16] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + 16] = buffer32->line[vid->displine << 1][(x << 4) + 17] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + 17] = buffer32->line[vid->displine << 1][(x << 4) + 18] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + 18] = buffer32->line[vid->displine << 1][(x << 4) + 19] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + 19] = vid->array[((dat >> 4) & vid->array[1] & 0x0f) + 16] + 16;
buffer32->line[vid->displine << 1][(x << 4) + 20] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + 20] = buffer32->line[vid->displine << 1][(x << 4) + 21] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + 21] = buffer32->line[vid->displine << 1][(x << 4) + 22] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + 22] = buffer32->line[vid->displine << 1][(x << 4) + 23] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + 23] = vid->array[(dat & vid->array[1] & 0x0f) + 16] + 16;
}
} else if (vid->array[3] & 0x08) { /*640x200x4 - this implementation is a complete guess!*/
for (x = 0; x < vid->crtc[1]; x++) {
dat = (vid->vram[((vid->ma << 1) & 0x1fff) + ((vid->sc & 3) * 0x2000)] << 8) | vid->vram[((vid->ma << 1) & 0x1fff) + ((vid->sc & 3) * 0x2000) + 1];
vid->ma++;
for (c = 0; c < 8; c++) {
chr = (dat >> 6) & 2;
chr |= ((dat >> 15) & 1);
buffer32->line[vid->displine << 1][(x << 3) + 8 + c] = buffer32->line[(vid->displine << 1) + 1][(x << 3) + 8 + c] = vid->array[(chr & vid->array[1]) + 16] + 16;
dat <<= 1;
}
}
} else if (vid->mode & 1) {
for (x = 0; x < vid->crtc[1]; x++) {
chr = vid->vram[(vid->ma << 1) & 0x3fff];
attr = vid->vram[((vid->ma << 1) + 1) & 0x3fff];
drawcursor = ((vid->ma == ca) && vid->con && vid->cursoron);
if (vid->mode & 0x20) {
cols[1] = vid->array[((attr & 15) & vid->array[1]) + 16] + 16;
cols[0] = vid->array[(((attr >> 4) & 7) & vid->array[1]) + 16] + 16;
if ((vid->blink & 16) && (attr & 0x80) && !drawcursor)
cols[1] = cols[0];
} else {
cols[1] = vid->array[((attr & 15) & vid->array[1]) + 16] + 16;
cols[0] = vid->array[((attr >> 4) & vid->array[1]) + 16] + 16;
}
if (vid->sc & 8) {
for (c = 0; c < 8; c++) {
buffer32->line[vid->displine << 1][(x << 3) + c + 8] = buffer32->line[(vid->displine << 1) + 1][(x << 3) + c + 8] = cols[0];
}
} else {
for (c = 0; c < 8; c++) {
if (vid->sc == 8) {
buffer32->line[vid->displine << 1][(x << 3) + c + 8] = buffer32->line[(vid->displine << 1) + 1][(x << 3) + c + 8] = cols[(fontdat[chr][7] & (1 << (c ^ 7))) ? 1 : 0];
} else {
buffer32->line[vid->displine << 1][(x << 3) + c + 8] = buffer32->line[(vid->displine << 1) + 1][(x << 3) + c + 8] = cols[(fontdat[chr][vid->sc & 7] & (1 << (c ^ 7))) ? 1 : 0];
}
}
}
if (drawcursor) {
for (c = 0; c < 8; c++) {
buffer32->line[vid->displine << 1][(x << 3) + c + 8] ^= 15;
buffer32->line[(vid->displine << 1) + 1][(x << 3) + c + 8] ^= 15;
}
}
vid->ma++;
}
} else if (!(vid->mode & 2)) {
for (x = 0; x < vid->crtc[1]; x++) {
chr = vid->vram[(vid->ma << 1) & 0x3fff];
attr = vid->vram[((vid->ma << 1) + 1) & 0x3fff];
drawcursor = ((vid->ma == ca) && vid->con && vid->cursoron);
if (vid->mode & 0x20) {
cols[1] = vid->array[((attr & 15) & vid->array[1]) + 16] + 16;
cols[0] = vid->array[(((attr >> 4) & 7) & vid->array[1]) + 16] + 16;
if ((vid->blink & 16) && (attr & 0x80) && !drawcursor)
cols[1] = cols[0];
} else {
cols[1] = vid->array[((attr & 15) & vid->array[1]) + 16] + 16;
cols[0] = vid->array[((attr >> 4) & vid->array[1]) + 16] + 16;
}
vid->ma++;
if (vid->sc & 8) {
for (c = 0; c < 8; c++)
buffer32->line[vid->displine << 1][(x << 4) + (c << 1) + 8] = buffer32->line[vid->displine << 1][(x << 4) + (c << 1) + 1 + 8] = cols[0];
} else {
for (c = 0; c < 8; c++) {
if (vid->sc == 8) {
buffer32->line[vid->displine << 1][(x << 4) + (c << 1) + 8] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + (c << 1) + 8] = buffer32->line[vid->displine << 1][(x << 4) + (c << 1) + 1 + 8] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + (c << 1) + 1 + 8] = cols[(fontdat[chr][7] & (1 << (c ^ 7))) ? 1 : 0];
} else {
buffer32->line[vid->displine << 1][(x << 4) + (c << 1) + 8] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + (c << 1) + 8] = buffer32->line[vid->displine << 1][(x << 4) + (c << 1) + 1 + 8] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + (c << 1) + 1 + 8] = cols[(fontdat[chr][vid->sc & 7] & (1 << (c ^ 7))) ? 1 : 0];
}
}
}
if (drawcursor) {
for (c = 0; c < 16; c++) {
buffer32->line[vid->displine << 1][(x << 4) + c + 8] ^= 15;
buffer32->line[(vid->displine << 1) + 1][(x << 4) + c + 8] ^= 15;
}
}
}
} else if (!(vid->mode & 16)) {
cols[0] = (vid->col & 15);
col = (vid->col & 16) ? 8 : 0;
if (vid->mode & 4) {
cols[1] = col | 3;
cols[2] = col | 4;
cols[3] = col | 7;
} else if (vid->col & 32) {
cols[1] = col | 3;
cols[2] = col | 5;
cols[3] = col | 7;
} else {
cols[1] = col | 2;
cols[2] = col | 4;
cols[3] = col | 6;
}
cols[0] = vid->array[(cols[0] & vid->array[1]) + 16] + 16;
cols[1] = vid->array[(cols[1] & vid->array[1]) + 16] + 16;
cols[2] = vid->array[(cols[2] & vid->array[1]) + 16] + 16;
cols[3] = vid->array[(cols[3] & vid->array[1]) + 16] + 16;
for (x = 0; x < vid->crtc[1]; x++) {
dat = (vid->vram[((vid->ma << 1) & 0x1fff) + ((vid->sc & 1) * 0x2000)] << 8) | vid->vram[((vid->ma << 1) & 0x1fff) + ((vid->sc & 1) * 0x2000) + 1];
vid->ma++;
for (c = 0; c < 8; c++) {
buffer32->line[vid->displine << 1][(x << 4) + (c << 1) + 8] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + (c << 1) + 8] = buffer32->line[vid->displine << 1][(x << 4) + (c << 1) + 1 + 8] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + (c << 1) + 1 + 8] = cols[dat >> 14];
dat <<= 2;
}
}
} else {
cols[0] = 0;
cols[1] = vid->array[(vid->col & vid->array[1]) + 16] + 16;
for (x = 0; x < vid->crtc[1]; x++) {
dat = (vid->vram[((vid->ma << 1) & 0x1fff) + ((vid->sc & 1) * 0x2000)] << 8) | vid->vram[((vid->ma << 1) & 0x1fff) + ((vid->sc & 1) * 0x2000) + 1];
vid->ma++;
for (c = 0; c < 16; c++) {
buffer32->line[vid->displine << 1][(x << 4) + c + 8] = buffer32->line[(vid->displine << 1) + 1][(x << 4) + c + 8] = cols[dat >> 15];
dat <<= 1;
}
}
}
} else {
if (vid->array[3] & 4) {
if (vid->mode & 1) {
hline(buffer32, 0, (vid->displine << 1), (vid->crtc[1] << 3) + 16, (vid->array[2] & 0xf) + 16);
hline(buffer32, 0, (vid->displine << 1) + 1, (vid->crtc[1] << 3) + 16, (vid->array[2] & 0xf) + 16);
} else {
hline(buffer32, 0, (vid->displine << 1), (vid->crtc[1] << 4) + 16, (vid->array[2] & 0xf) + 16);
hline(buffer32, 0, (vid->displine << 1) + 1, (vid->crtc[1] << 4) + 16, (vid->array[2] & 0xf) + 16);
}
} else {
cols[0] = ((vid->mode & 0x12) == 0x12) ? 0 : (vid->col & 0xf) + 16;
if (vid->mode & 1) {
hline(buffer32, 0, (vid->displine << 1), (vid->crtc[1] << 3) + 16, cols[0]);
hline(buffer32, 0, (vid->displine << 1) + 1, (vid->crtc[1] << 3) + 16, cols[0]);
} else {
hline(buffer32, 0, (vid->displine << 1), (vid->crtc[1] << 4) + 16, cols[0]);
hline(buffer32, 0, (vid->displine << 1) + 1, (vid->crtc[1] << 4) + 16, cols[0]);
}
}
}
if (vid->mode & 1)
x = (vid->crtc[1] << 3) + 16;
else
x = (vid->crtc[1] << 4) + 16;
if (!dev->is_sl2 && vid->composite) {
Composite_Process(vid->mode, 0, x >> 2, buffer32->line[vid->displine << 1]);
Composite_Process(vid->mode, 0, x >> 2, buffer32->line[(vid->displine << 1) + 1]);
} else {
video_process_8(x, vid->displine << 1);
video_process_8(x, (vid->displine << 1) + 1);
}
vid->sc = oldsc;
if (vid->vc == vid->crtc[7] && !vid->sc)
vid->stat |= 8;
vid->displine++;
if (vid->displine >= 360)
vid->displine = 0;
} else {
timer_advance_u64(&vid->timer, vid->dispontime);
if (vid->dispon)
vid->stat &= ~1;
vid->linepos = 0;
if (vid->vsynctime) {
vid->vsynctime--;
if (!vid->vsynctime)
vid->stat &= ~8;
}
if (vid->sc == (vid->crtc[11] & 31) || ((vid->crtc[8] & 3) == 3 && vid->sc == ((vid->crtc[11] & 31) >> 1))) {
vid->con = 0;
vid->coff = 1;
}
if (vid->vadj) {
vid->sc++;
vid->sc &= 31;
vid->ma = vid->maback;
vid->vadj--;
if (!vid->vadj) {
vid->dispon = 1;
if (dev->is_sl2 && (vid->array[5] & 1))
vid->ma = vid->maback = vid->crtc[13] | (vid->crtc[12] << 8);
else
vid->ma = vid->maback = (vid->crtc[13] | (vid->crtc[12] << 8)) & 0x3fff;
vid->sc = 0;
}
} else if (vid->sc == vid->crtc[9] || ((vid->crtc[8] & 3) == 3 && vid->sc == (vid->crtc[9] >> 1))) {
vid->maback = vid->ma;
vid->sc = 0;
oldvc = vid->vc;
vid->vc++;
if (dev->is_sl2)
vid->vc &= 255;
else
vid->vc &= 127;
if (vid->vc == vid->crtc[6])
vid->dispon = 0;
if (oldvc == vid->crtc[4]) {
vid->vc = 0;
vid->vadj = vid->crtc[5];
if (!vid->vadj)
vid->dispon = 1;
if (!vid->vadj) {
if (dev->is_sl2 && (vid->array[5] & 1))
vid->ma = vid->maback = vid->crtc[13] | (vid->crtc[12] << 8);
else
vid->ma = vid->maback = (vid->crtc[13] | (vid->crtc[12] << 8)) & 0x3fff;
}
if ((vid->crtc[10] & 0x60) == 0x20)
vid->cursoron = 0;
else
vid->cursoron = vid->blink & 16;
}
if (vid->vc == vid->crtc[7]) {
vid->dispon = 0;
vid->displine = 0;
vid->vsynctime = 16;
if (vid->crtc[7]) {
if (vid->mode & 1)
x = (vid->crtc[1] << 3) + 16;
else
x = (vid->crtc[1] << 4) + 16;
vid->lastline++;
xs_temp = x;
ys_temp = (vid->lastline - vid->firstline) << 1;
if ((xs_temp > 0) && (ys_temp > 0)) {
if (xs_temp < 64)
xs_temp = 656;
if (ys_temp < 32)
ys_temp = 400;
if (!enable_overscan)
xs_temp -= 16;
if ((xs_temp != xsize) || (ys_temp != ysize) || video_force_resize_get()) {
xsize = xs_temp;
ysize = ys_temp;
set_screen_size(xsize, ysize + (enable_overscan ? 16 : 0));
if (video_force_resize_get())
video_force_resize_set(0);
}
if (enable_overscan) {
video_blit_memtoscreen(0, (vid->firstline - 4) << 1,
xsize, ((vid->lastline - vid->firstline) + 8) << 1);
} else {
video_blit_memtoscreen(8, vid->firstline << 1,
xsize, (vid->lastline - vid->firstline) << 1);
}
}
frames++;
video_res_x = xsize;
video_res_y = ysize;
if ((vid->array[3] & 0x10) && (vid->mode & 1)) { /*320x200x16*/
video_res_x /= 2;
video_bpp = 4;
} else if (vid->array[3] & 0x10) { /*160x200x16*/
video_res_x /= 4;
video_bpp = 4;
} else if (vid->array[3] & 0x08) { /*640x200x4 - this implementation is a complete guess!*/
video_bpp = 2;
} else if (vid->mode & 1) {
video_res_x /= 8;
video_res_y /= vid->crtc[9] + 1;
video_bpp = 0;
} else if (!(vid->mode & 2)) {
video_res_x /= 16;
video_res_y /= vid->crtc[9] + 1;
video_bpp = 0;
} else if (!(vid->mode & 16)) {
video_res_x /= 2;
video_bpp = 2;
} else {
video_bpp = 1;
}
}
vid->firstline = 1000;
vid->lastline = 0;
vid->blink++;
}
} else {
vid->sc++;
vid->sc &= 31;
vid->ma = vid->maback;
}
if (vid->sc == (vid->crtc[10] & 31) || ((vid->crtc[8] & 3) == 3 && vid->sc == ((vid->crtc[10] & 31) >> 1)))
vid->con = 1;
}
}
static void
vid_speed_changed(void *priv)
{
tandy_t *dev = (tandy_t *) priv;
recalc_timings(dev);
}
static void
vid_close(void *priv)
{
tandy_t *dev = (tandy_t *) priv;
free(dev->vid);
dev->vid = NULL;
}
static void
vid_init(tandy_t *dev)
{
int display_type;
t1kvid_t *vid;
vid = malloc(sizeof(t1kvid_t));
memset(vid, 0x00, sizeof(t1kvid_t));
vid->memctrl = -1;
dev->vid = vid;
video_inform(VIDEO_FLAG_TYPE_CGA, &timing_dram);
display_type = machine_get_config_int("display_type");
vid->composite = (display_type != TANDY_RGB);
cga_comp_init(1);
if (dev->is_sl2) {
vid->b8000_limit = 0x8000;
vid->planar_ctrl = 4;
overscan_x = overscan_y = 16;
io_sethandler(0x0065, 1, vid_in, NULL, NULL, vid_out, NULL, NULL, dev);
} else
vid->b8000_mask = 0x3fff;
timer_add(&vid->timer, vid_poll, dev, 1);
mem_mapping_add(&vid->mapping, 0xb8000, 0x08000,
vid_read, NULL, NULL, vid_write, NULL, NULL, NULL, 0, dev);
io_sethandler(0x03d0, 16,
vid_in, NULL, NULL, vid_out, NULL, NULL, dev);
}
const device_config_t vid_config[] = {
// clang-format off
{
.name = "display_type",
.description = "Display type",
.type = CONFIG_SELECTION,
.default_string = "",
.default_int = TANDY_RGB,
.file_filter = "",
.spinner = { 0 },
.selection = {
{ .description = "RGB", .value = TANDY_RGB },
{ .description = "Composite", .value = TANDY_COMPOSITE },
{ .description = "" }
}
},
{ .name = "", .description = "", .type = CONFIG_END }
// clang-format on
};
const device_t vid_device = {
.name = "Tandy 1000",
.internal_name = "tandy1000_video",
.flags = 0,
.local = 0,
.init = NULL,
.close = vid_close,
.reset = NULL,
{ .available = NULL },
.speed_changed = vid_speed_changed,
.force_redraw = NULL,
.config = vid_config
};
const device_t vid_device_hx = {
.name = "Tandy 1000 HX",
.internal_name = "tandy1000_hx_video",
.flags = 0,
.local = 0,
.init = NULL,
.close = vid_close,
.reset = NULL,
{ .available = NULL },
.speed_changed = vid_speed_changed,
.force_redraw = NULL,
.config = vid_config
};
const device_t vid_device_sl = {
.name = "Tandy 1000SL2",
.internal_name = "tandy1000_sl_video",
.flags = 0,
.local = 1,
.init = NULL,
.close = vid_close,
.reset = NULL,
{ .available = NULL },
.speed_changed = vid_speed_changed,
.force_redraw = NULL,
.config = NULL
};
static void
eep_write(UNUSED(uint16_t addr), uint8_t val, void *priv)
{
t1keep_t *eep = (t1keep_t *) priv;
if ((val & 4) && !eep->clk)
switch (eep->state) {
case EEPROM_IDLE:
switch (eep->count) {
case 0:
if (!(val & 3))
eep->count = 1;
else
eep->count = 0;
break;
case 1:
if ((val & 3) == 2)
eep->count = 2;
else
eep->count = 0;
break;
case 2:
if ((val & 3) == 3)
eep->state = EEPROM_GET_OPERATION;
eep->count = 0;
break;
default:
break;
}
break;
case EEPROM_GET_OPERATION:
eep->data = (eep->data << 1) | (val & 1);
eep->count++;
if (eep->count == 8) {
eep->count = 0;
eep->addr = eep->data & 0x3f;
switch (eep->data & 0xc0) {
case 0x40:
eep->state = EEPROM_WRITE;
break;
case 0x80:
eep->state = EEPROM_READ;
eep->data = eep->store[eep->addr];
break;
default:
eep->state = EEPROM_IDLE;
break;
}
}
break;
case EEPROM_READ:
eep_data_out = eep->data & 0x8000;
eep->data <<= 1;
eep->count++;
if (eep->count == 16) {
eep->count = 0;
eep->state = EEPROM_IDLE;
}
break;
case EEPROM_WRITE:
eep->data = (eep->data << 1) | (val & 1);
eep->count++;
if (eep->count == 16) {
eep->count = 0;
eep->state = EEPROM_IDLE;
eep->store[eep->addr] = eep->data;
}
break;
default:
break;
}
eep->clk = val & 4;
}
static void *
eep_init(const device_t *info)
{
t1keep_t *eep;
FILE *fp = NULL;
eep = (t1keep_t *) malloc(sizeof(t1keep_t));
memset(eep, 0x00, sizeof(t1keep_t));
switch (info->local) {
case TYPE_TANDY1000HX:
eep->path = "tandy1000hx.bin";
break;
case TYPE_TANDY1000SL2:
eep->path = "tandy1000sl2.bin";
break;
default:
break;
}
fp = nvr_fopen(eep->path, "rb");
if (fp != NULL) {
if (fread(eep->store, 1, 128, fp) != 128)
fatal("eep_init(): Error reading Tandy EEPROM\n");
(void) fclose(fp);
} else
memset(eep->store, 0x00, 128);
io_sethandler(0x037c, 1, NULL, NULL, NULL, eep_write, NULL, NULL, eep);
return eep;
}
static void
eep_close(void *priv)
{
t1keep_t *eep = (t1keep_t *) priv;
FILE *fp = NULL;
fp = nvr_fopen(eep->path, "wb");
if (fp != NULL) {
(void) fwrite(eep->store, 128, 1, fp);
(void) fclose(fp);
}
free(eep);
}
static const device_t eep_1000hx_device = {
.name = "Tandy 1000HX EEPROM",
.internal_name = "eep_1000hx",
.flags = 0,
.local = TYPE_TANDY1000HX,
.init = eep_init,
.close = eep_close,
.reset = NULL,
{ .available = NULL },
.speed_changed = NULL,
.force_redraw = NULL,
.config = NULL
};
static const device_t eep_1000sl2_device = {
.name = "Tandy 1000SL2 EEPROM",
.internal_name = "eep_1000sl2",
.flags = 0,
.local = TYPE_TANDY1000SL2,
.init = eep_init,
.close = eep_close,
.reset = NULL,
{ .available = NULL },
.speed_changed = NULL,
.force_redraw = NULL,
.config = NULL
};
static void
tandy_write(uint16_t addr, uint8_t val, void *priv)
{
tandy_t *dev = (tandy_t *) priv;
switch (addr) {
case 0x00a0:
if (dev->is_hx && (val & 0x10)) {
dev->base = (mem_size - 256) * 1024;
dev->mask = 0x3ffff;
mem_mapping_set_addr(&ram_low_mapping, 0, dev->base);
mem_mapping_set_addr(&dev->ram_mapping,
(((val >> 1) & 7) - 1) * 128 * 1024, 0x40000);
} else {
dev->base = (mem_size - 128) * 1024;
dev->mask = 0x1ffff;
mem_mapping_set_addr(&ram_low_mapping, 0, dev->base);
mem_mapping_set_addr(&dev->ram_mapping,
((val >> 1) & 7) * 128 * 1024, 0x20000);
}
if (dev->is_hx) {
io_removehandler(0x03d0, 16,
vid_in, NULL, NULL, vid_out, NULL, NULL, dev);
if (val & 0x01)
mem_mapping_disable(&dev->vid->mapping);
else {
io_sethandler(0x03d0, 16,
vid_in, NULL, NULL, vid_out, NULL, NULL, dev);
mem_mapping_set_addr(&dev->vid->mapping, 0xb8000, 0x8000);
}
} else {
if (val & 0x01)
mem_mapping_set_addr(&dev->vid->mapping, 0xc0000, 0x10000);
else
mem_mapping_set_addr(&dev->vid->mapping, 0xb8000, 0x8000);
}
dev->ram_bank = val;
break;
case 0xffe8:
if ((val & 0xe) == 0xe)
mem_mapping_disable(&dev->ram_mapping);
else
mem_mapping_set_addr(&dev->ram_mapping,
((val >> 1) & 7) * 128 * 1024,
0x20000);
recalc_address_sl(dev);
dev->ram_bank = val;
break;
case 0xffea:
dev->rom_bank = val;
dev->rom_offset = ((val ^ 4) & 7) * 0x10000;
mem_mapping_set_exec(&dev->rom_mapping,
&dev->rom[dev->rom_offset]);
break;
default:
break;
}
}
static uint8_t
tandy_read(uint16_t addr, void *priv)
{
const tandy_t *dev = (tandy_t *) priv;
uint8_t ret = 0xff;
switch (addr) {
case 0x00a0:
ret = dev->ram_bank;
break;
case 0xffe8:
ret = dev->ram_bank;
break;
case 0xffea:
ret = (dev->rom_bank ^ 0x10);
break;
default:
break;
}
return ret;
}
static void
write_ram(uint32_t addr, uint8_t val, void *priv)
{
const tandy_t *dev = (tandy_t *) priv;
ram[dev->base + (addr & dev->mask)] = val;
}
static uint8_t
read_ram(uint32_t addr, void *priv)
{
const tandy_t *dev = (tandy_t *) priv;
return (ram[dev->base + (addr & dev->mask)]);
}
static uint8_t
read_rom(uint32_t addr, void *priv)
{
const tandy_t *dev = (tandy_t *) priv;
uint32_t addr2 = (addr & 0xffff) + dev->rom_offset;
return (dev->rom[addr2]);
}
static uint16_t
read_romw(uint32_t addr, void *priv)
{
tandy_t *dev = (tandy_t *) priv;
uint32_t addr2 = (addr & 0xffff) + dev->rom_offset;
return (*(uint16_t *) &dev->rom[addr2]);
}
static uint32_t
read_roml(uint32_t addr, void *priv)
{
tandy_t *dev = (tandy_t *) priv;
return (*(uint32_t *) &dev->rom[addr]);
}
static void
init_rom(tandy_t *dev)
{
dev->rom = (uint8_t *) malloc(0x80000);
#if 1
if (!rom_load_interleaved("roms/machines/tandy1000sl2/8079047.hu1",
"roms/machines/tandy1000sl2/8079048.hu2",
0x000000, 0x80000, 0, dev->rom)) {
tandy_log("TANDY: unable to load BIOS for 1000/SL2 !\n");
free(dev->rom);
dev->rom = NULL;
return;
}
#else
f = rom_fopen("roms/machines/tandy1000sl2/8079047.hu1", "rb");
ff = rom_fopen("roms/machines/tandy1000sl2/8079048.hu2", "rb");
for (c = 0x0000; c < 0x80000; c += 2) {
dev->rom[c] = getc(f);
dev->rom[c + 1] = getc(ff);
}
fclose(ff);
fclose(f);
#endif
mem_mapping_add(&dev->rom_mapping, 0xe0000, 0x10000,
read_rom, read_romw, read_roml, NULL, NULL, NULL,
dev->rom, MEM_MAPPING_EXTERNAL, dev);
}
static void
machine_tandy1k_init(const machine_t *model, int type)
{
tandy_t *dev;
dev = calloc(1, sizeof(tandy_t));
machine_common_init(model);
nmi_init();
/*
* Base 128K mapping is controlled via ports 0xA0 or
* 0xFFE8 (SL2), so we remove it from the main mapping.
*/
dev->base = (mem_size - 128) * 1024;
dev->mask = 0x1ffff;
mem_mapping_add(&dev->ram_mapping, 0x60000, 0x20000,
read_ram, NULL, NULL, write_ram, NULL, NULL, NULL,
MEM_MAPPING_INTERNAL, dev);
mem_mapping_set_addr(&ram_low_mapping, 0, dev->base);
device_add(&keyboard_tandy_device);
if (fdc_current[0] == FDC_INTERNAL)
device_add(&fdc_xt_tandy_device);
video_reset(gfxcard[0]);
switch (type) {
case TYPE_TANDY:
case TYPE_TANDY1000SX:
keyboard_set_table(scancode_tandy);
io_sethandler(0x00a0, 1,
tandy_read, NULL, NULL, tandy_write, NULL, NULL, dev);
vid_init(dev);
device_add_ex(&vid_device, dev);
device_add(&sn76489_device);
break;
case TYPE_TANDY1000HX:
dev->is_hx = 1;
keyboard_set_table(scancode_tandy);
io_sethandler(0x00a0, 1,
tandy_read, NULL, NULL, tandy_write, NULL, NULL, dev);
vid_init(dev);
device_add_ex(&vid_device, dev);
device_add(&ncr8496_device);
device_add(&eep_1000hx_device);
break;
case TYPE_TANDY1000SL2:
dev->is_sl2 = 1;
init_rom(dev);
io_sethandler(0xffe8, 8,
tandy_read, NULL, NULL, tandy_write, NULL, NULL, dev);
vid_init(dev);
device_add_ex(&vid_device_sl, dev);
device_add(&pssj_device);
device_add(&eep_1000sl2_device);
break;
default:
break;
}
standalone_gameport_type = &gameport_device;
eep_data_out = 0x0000;
}
int
tandy1k_eeprom_read(void)
{
return eep_data_out;
}
int
machine_tandy1000sx_init(const machine_t *model)
{
int ret;
ret = bios_load_linearr("roms/machines/tandy/tandy1t1.020",
0x000f0000, 131072, 0);
if (bios_only || !ret)
return ret;
machine_tandy1k_init(model, TYPE_TANDY1000SX);
return ret;
}
int
machine_tandy1000hx_init(const machine_t *model)
{
int ret;
ret = bios_load_linear("roms/machines/tandy1000hx/v020000.u12",
0x000e0000, 131072, 0);
if (bios_only || !ret)
return ret;
machine_tandy1k_init(model, TYPE_TANDY1000HX);
return ret;
}
int
machine_tandy1000sl2_init(const machine_t *model)
{
int ret;
ret = bios_load_interleaved("roms/machines/tandy1000sl2/8079047.hu1",
"roms/machines/tandy1000sl2/8079048.hu2",
0x000f0000, 65536, 0x18000);
if (bios_only || !ret)
return ret;
machine_tandy1k_init(model, TYPE_TANDY1000SL2);
return ret;
}