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comparison blastem.c @ 279:6be6056735a9

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Fix native address lookup in bannked memory area
author Mike Pavone <pavone@retrodev.com>
date Fri, 03 May 2013 20:18:28 -0700
parents eec7072189a1
children 9ee64039ddeb
comparison
equal deleted inserted replaced
278:9578e5dea147 279:6be6056735a9
131 uint8_t need_reset = 0; 131 uint8_t need_reset = 0;
132 uint8_t busreq = 0; 132 uint8_t busreq = 0;
133 uint8_t busack = 0; 133 uint8_t busack = 0;
134 uint32_t busack_cycle = CYCLE_NEVER; 134 uint32_t busack_cycle = CYCLE_NEVER;
135 uint8_t new_busack = 0; 135 uint8_t new_busack = 0;
136 //#define DO_DEBUG_PRINT 136 #define DO_DEBUG_PRINT
137 #ifdef DO_DEBUG_PRINT 137 #ifdef DO_DEBUG_PRINT
138 #define dprintf printf 138 #define dprintf printf
139 #define dputs puts 139 #define dputs puts
140 #else 140 #else
141 #define dprintf 141 #define dprintf
348 /*if (pad->input[GAMEPAD_TH0] || pad->input[GAMEPAD_TH1]) { 348 /*if (pad->input[GAMEPAD_TH0] || pad->input[GAMEPAD_TH1]) {
349 printf ("value: %X\n", context->value); 349 printf ("value: %X\n", context->value);
350 }*/ 350 }*/
351 } 351 }
352 352
353 uint32_t zram_counter = 0;
354
353 m68k_context * io_write(uint32_t location, m68k_context * context, uint8_t value) 355 m68k_context * io_write(uint32_t location, m68k_context * context, uint8_t value)
354 { 356 {
355 if (location < 0x10000) { 357 if (location < 0x10000) {
356 if (busack_cycle > context->current_cycle) { 358 if (busack_cycle > context->current_cycle) {
357 busack = new_busack; 359 busack = new_busack;
399 new_busack = 0; 401 new_busack = 0;
400 } 402 }
401 } else { 403 } else {
402 if (busreq) { 404 if (busreq) {
403 dputs("releasing z80 bus"); 405 dputs("releasing z80 bus");
406 char fname[20];
407 sprintf(fname, "zram-%d", zram_counter++);
408 FILE * f = fopen(fname, "wb");
409 fwrite(z80_ram, 1, sizeof(z80_ram), f);
410 fclose(f);
404 z80_context * z_context = context->next_cpu; 411 z80_context * z_context = context->next_cpu;
405 //TODO: Add necessary delay between release of busreq and resumption of execution 412 //TODO: Add necessary delay between release of busreq and resumption of execution
406 z_context->current_cycle = (context->current_cycle * MCLKS_PER_68K) / MCLKS_PER_Z80; 413 z_context->current_cycle = (context->current_cycle * MCLKS_PER_68K) / MCLKS_PER_Z80;
407 } 414 }
408 busreq = 0; 415 busreq = 0;
483 new_busack = 0; 490 new_busack = 0;
484 } 491 }
485 } else { 492 } else {
486 if (busreq) { 493 if (busreq) {
487 dprintf("releasing Z80 bus @ %d\n", (context->current_cycle * MCLKS_PER_68K) / MCLKS_PER_Z80); 494 dprintf("releasing Z80 bus @ %d\n", (context->current_cycle * MCLKS_PER_68K) / MCLKS_PER_Z80);
495 char fname[20];
496 sprintf(fname, "zram-%d", zram_counter++);
497 FILE * f = fopen(fname, "wb");
498 fwrite(z80_ram, 1, sizeof(z80_ram), f);
499 fclose(f);
488 z80_context * z_context = context->next_cpu; 500 z80_context * z_context = context->next_cpu;
489 //TODO: Add necessary delay between release of busreq and resumption of execution 501 //TODO: Add necessary delay between release of busreq and resumption of execution
490 z_context->current_cycle = (context->current_cycle * MCLKS_PER_68K) / MCLKS_PER_Z80; 502 z_context->current_cycle = (context->current_cycle * MCLKS_PER_68K) / MCLKS_PER_Z80;
491 } 503 }
492 busreq = 0; 504 busreq = 0;