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comparison blastem.c @ 548:a3afee2271ce

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Initial work on the x86-32 target
author Michael Pavone <pavone@retrodev.com>
date Tue, 18 Feb 2014 21:37:31 -0800
parents c641006da28e
children dc9f178085a0
comparison
equal deleted inserted replaced
547:3090d016c9e9 548:a3afee2271ce
180 180
181 #define Z80_VINT_DURATION 128 181 #define Z80_VINT_DURATION 128
182 182
183 void sync_z80(z80_context * z_context, uint32_t mclks) 183 void sync_z80(z80_context * z_context, uint32_t mclks)
184 { 184 {
185 #ifdef X86_64
185 if (z80_enabled && !reset && !busreq) { 186 if (z80_enabled && !reset && !busreq) {
186 genesis_context * gen = z_context->system; 187 genesis_context * gen = z_context->system;
187 z_context->sync_cycle = mclks / MCLKS_PER_Z80; 188 z_context->sync_cycle = mclks / MCLKS_PER_Z80;
188 if (z_context->current_cycle < z_context->sync_cycle) { 189 if (z_context->current_cycle < z_context->sync_cycle) {
189 if (need_reset) { 190 if (need_reset) {
199 dprintf("Running Z80 from cycle %d to cycle %d. Native PC: %p\n", z_context->current_cycle, z_context->sync_cycle, z_context->native_pc); 200 dprintf("Running Z80 from cycle %d to cycle %d. Native PC: %p\n", z_context->current_cycle, z_context->sync_cycle, z_context->native_pc);
200 z80_run(z_context); 201 z80_run(z_context);
201 dprintf("Z80 ran to cycle %d\n", z_context->current_cycle); 202 dprintf("Z80 ran to cycle %d\n", z_context->current_cycle);
202 } 203 }
203 } 204 }
204 } else { 205 } else
206 #endif
207 {
205 z_context->current_cycle = mclks / MCLKS_PER_Z80; 208 z_context->current_cycle = mclks / MCLKS_PER_Z80;
206 } 209 }
207 } 210 }
208 211
209 void sync_sound(genesis_context * gen, uint32_t target) 212 void sync_sound(genesis_context * gen, uint32_t target)
467 } 470 }
468 if (!(busack || reset)) { 471 if (!(busack || reset)) {
469 location &= 0x7FFF; 472 location &= 0x7FFF;
470 if (location < 0x4000) { 473 if (location < 0x4000) {
471 z80_ram[location & 0x1FFF] = value; 474 z80_ram[location & 0x1FFF] = value;
475 #ifdef X86_64
472 z80_handle_code_write(location & 0x1FFF, gen->z80); 476 z80_handle_code_write(location & 0x1FFF, gen->z80);
477 #endif
473 } else if (location < 0x6000) { 478 } else if (location < 0x6000) {
474 sync_sound(gen, context->current_cycle * MCLKS_PER_68K); 479 sync_sound(gen, context->current_cycle * MCLKS_PER_68K);
475 if (location & 1) { 480 if (location & 1) {
476 ym_data_write(gen->ym, value); 481 ym_data_write(gen->ym, value);
477 } else if(location & 2) { 482 } else if(location & 2) {
984 printf("Loaded %s\n", statefile); 989 printf("Loaded %s\n", statefile);
985 if (debugger) { 990 if (debugger) {
986 insert_breakpoint(&context, pc, debugger); 991 insert_breakpoint(&context, pc, debugger);
987 } 992 }
988 adjust_int_cycle(gen->m68k, gen->vdp); 993 adjust_int_cycle(gen->m68k, gen->vdp);
994 #ifdef X86_64
989 gen->z80->native_pc = z80_get_native_address_trans(gen->z80, gen->z80->pc); 995 gen->z80->native_pc = z80_get_native_address_trans(gen->z80, gen->z80->pc);
996 #endif
990 start_68k_context(&context, pc); 997 start_68k_context(&context, pc);
991 } else { 998 } else {
992 if (debugger) { 999 if (debugger) {
993 insert_breakpoint(&context, address, debugger); 1000 insert_breakpoint(&context, address, debugger);
994 } 1001 }
1229 psg_context p_context; 1236 psg_context p_context;
1230 psg_init(&p_context, render_sample_rate(), gen.master_clock, MCLKS_PER_PSG, render_audio_buffer()); 1237 psg_init(&p_context, render_sample_rate(), gen.master_clock, MCLKS_PER_PSG, render_audio_buffer());
1231 1238
1232 z80_context z_context; 1239 z80_context z_context;
1233 x86_z80_options z_opts; 1240 x86_z80_options z_opts;
1241 #ifdef X86_64
1234 init_x86_z80_opts(&z_opts); 1242 init_x86_z80_opts(&z_opts);
1235 init_z80_context(&z_context, &z_opts); 1243 init_z80_context(&z_context, &z_opts);
1244 #endif
1236 1245
1237 z_context.system = &gen; 1246 z_context.system = &gen;
1238 z_context.mem_pointers[0] = z80_ram; 1247 z_context.mem_pointers[0] = z80_ram;
1239 z_context.sync_cycle = z_context.target_cycle = mclks_per_frame/MCLKS_PER_Z80; 1248 z_context.sync_cycle = z_context.target_cycle = mclks_per_frame/MCLKS_PER_Z80;
1240 z_context.int_cycle = CYCLE_NEVER; 1249 z_context.int_cycle = CYCLE_NEVER;