Mercurial > repos > blastem
view testgst.c @ 622:b76d2a628ab9
Partially working switch to having a vcounter and hslot counter in the context rather than trying to derive them from the cycle count. This should allow for more accurate handling of mid screen mode switches. Interrupt timing is broken currently though
author | Michael Pavone <pavone@retrodev.com> |
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date | Tue, 17 Jun 2014 19:01:01 -0700 |
parents | 140af5509ce7 |
children | e9369d6f0101 |
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/* Copyright 2013 Michael Pavone This file is part of BlastEm. BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. */ #include "gst.h" #include <string.h> #include <stdlib.h> uint8_t busreq; uint8_t reset; int32_t color_map[1 << 12]; void latch_mode(vdp_context * context) { } void ym_data_write(ym2612_context * context, uint8_t value) { if (context->selected_reg >= YM_REG_END) { return; } if (context->selected_part) { if (context->selected_reg < YM_PART2_START) { return; } context->part2_regs[context->selected_reg - YM_PART2_START] = value; } else { if (context->selected_reg < YM_PART1_START) { return; } context->part1_regs[context->selected_reg - YM_PART1_START] = value; } } void ym_address_write_part1(ym2612_context * context, uint8_t address) { //printf("address_write_part1: %X\n", address); context->selected_reg = address; context->selected_part = 0; } void ym_address_write_part2(ym2612_context * context, uint8_t address) { //printf("address_write_part2: %X\n", address); context->selected_reg = address; context->selected_part = 1; } uint16_t ram[64*1024]; uint8_t zram[8*1024]; int main(int argc, char ** argv) { vdp_context vdp; ym2612_context ym; psg_context psg; m68k_context m68k; z80_context z80; genesis_context gen; if (argc < 3) { fputs("Usage: testgst infile outfile\n", stderr); return 1; } memset(&gen, 0, sizeof(gen)); memset(&m68k, 0, sizeof(m68k)); memset(&z80, 0, sizeof(z80)); memset(&ym, 0, sizeof(ym)); memset(&vdp, 0, sizeof(vdp)); memset(&psg, 0, sizeof(psg)); m68k.mem_pointers[1] = ram; z80.mem_pointers[0] = zram; vdp.vdpmem = malloc(VRAM_SIZE); gen.vdp = &vdp; gen.ym = &ym; gen.psg = &psg; gen.m68k = &m68k; gen.z80 = &z80; uint32_t pc = load_gst(&gen, argv[1]); save_gst(&gen, argv[2], pc); return 0; }