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comparison sms.c @ 1377:e587f16e7d3d

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Implemented SMS pause button
author Michael Pavone <pavone@retrodev.com>
date Sun, 28 May 2017 21:03:55 -0700
parents 5b20840711c1
children 65f1d6558e9e
comparison
equal deleted inserted replaced
1376:70d88d9bfe13 1377:e587f16e7d3d
191 191
192 static void run_sms(system_header *system) 192 static void run_sms(system_header *system)
193 { 193 {
194 render_disable_ym(); 194 render_disable_ym();
195 sms_context *sms = (sms_context *)system; 195 sms_context *sms = (sms_context *)system;
196 uint32_t target_cycle = sms->z80->current_cycle + 3420*262; 196 uint32_t target_cycle = sms->z80->current_cycle + 3420*16;
197 //TODO: PAL support 197 //TODO: PAL support
198 render_set_video_standard(VID_NTSC); 198 render_set_video_standard(VID_NTSC);
199 while (!sms->should_return) 199 while (!sms->should_return)
200 { 200 {
201 if (system->enter_debugger && sms->z80->pc) { 201 if (system->enter_debugger && sms->z80->pc) {
202 system->enter_debugger = 0; 202 system->enter_debugger = 0;
203 zdebugger(sms->z80, sms->z80->pc); 203 zdebugger(sms->z80, sms->z80->pc);
204 } 204 }
205 if (sms->z80->nmi_start == CYCLE_NEVER) {
206 uint32_t nmi = vdp_next_nmi(sms->vdp);
207 if (nmi != CYCLE_NEVER) {
208 z80_assert_nmi(sms->z80, nmi);
209 }
210 }
205 z80_run(sms->z80, target_cycle); 211 z80_run(sms->z80, target_cycle);
206 if (sms->z80->reset) { 212 if (sms->z80->reset) {
207 z80_clear_reset(sms->z80, sms->z80->current_cycle + 128*15); 213 z80_clear_reset(sms->z80, sms->z80->current_cycle + 128*15);
208 } 214 }
209 target_cycle = sms->z80->current_cycle; 215 target_cycle = sms->z80->current_cycle;
210 vdp_run_context(sms->vdp, target_cycle); 216 vdp_run_context(sms->vdp, target_cycle);
211 psg_run(sms->psg, target_cycle); 217 psg_run(sms->psg, target_cycle);
212 target_cycle += 3420*262; 218 target_cycle += 3420*16;
213 if (target_cycle > 0x10000000) { 219 if (target_cycle > 0x10000000) {
214 uint32_t adjust = sms->z80->current_cycle - 3420*262*2; 220 uint32_t adjust = sms->z80->current_cycle - 3420*262*2;
215 io_adjust_cycles(sms->io.ports, sms->z80->current_cycle, adjust); 221 io_adjust_cycles(sms->io.ports, sms->z80->current_cycle, adjust);
216 io_adjust_cycles(sms->io.ports+1, sms->z80->current_cycle, adjust); 222 io_adjust_cycles(sms->io.ports+1, sms->z80->current_cycle, adjust);
217 z80_adjust_cycles(sms->z80, adjust); 223 z80_adjust_cycles(sms->z80, adjust);
353 sms->header.get_open_bus_value = get_open_bus_value; 359 sms->header.get_open_bus_value = get_open_bus_value;
354 sms->header.request_exit = request_exit; 360 sms->header.request_exit = request_exit;
355 sms->header.soft_reset = soft_reset; 361 sms->header.soft_reset = soft_reset;
356 sms->header.inc_debug_mode = inc_debug_mode; 362 sms->header.inc_debug_mode = inc_debug_mode;
357 sms->header.inc_debug_pal = inc_debug_pal; 363 sms->header.inc_debug_pal = inc_debug_pal;
364 sms->header.type = SYSTEM_SMS;
358 365
359 return sms; 366 return sms;
360 } 367 }