59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
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/* TIKI-100_emul.c V1.1.0
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*
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* Hovedmodul for TIKI-100_emul
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* Copyright (C) Asbj<EFBFBD>rn Djupdal 2000-2001
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*/
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#include "TIKI-100_emul.h"
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#include "protos.h"
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/* variabler */
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Z80 cpu;
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static boolean done = FALSE;
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/*****************************************************************************/
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/* starter emulering, returnerer n<>r emulering avslutter */
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boolean runEmul (void) {
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#ifdef DEBUG
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cpu.Trap = 0xffff;
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#endif
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cpu.IPeriod = 4000;
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if (initMem()) {
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ResetZ80 (&cpu);
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RunZ80 (&cpu);
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return TRUE;
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}
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return FALSE;
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}
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/* ikke i bruk */
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void PatchZ80 (register Z80 *R) {
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}
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/* kalles regelmessig av z80-emulator */
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word LoopZ80 (register Z80 *R) {
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static int guiCount = 20;
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if (done) return INT_QUIT;
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updateCTC (cpu.IPeriod);
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if (--guiCount == 0) {
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loopEmul (20);
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guiCount = 20;
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}
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return INT_NONE;
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}
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/* reset emulator */
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void resetEmul (void) {
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OutZ80 (0x1c, 0x00);
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ResetZ80 (&cpu);
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}
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/* avslutt emulator */
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void quitEmul (void) {
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done = TRUE;
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}
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#ifdef DEBUG
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/* start z80-debugger */
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void trace (void) {
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cpu.Trace = 1;
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}
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#endif
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