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port to updated Cyclone, debug menu

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@217 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-08-05 19:41:41 +00:00
parent 3335750a7d
commit 0af33fe0ef
14 changed files with 170 additions and 91 deletions
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20
Pico/Sek.c
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@ -43,12 +43,13 @@ static int (*ResetCallback)()=DoReset;
#ifdef EMU_C68K
// interrupt acknowledgment
static void SekIntAck(int level)
static int SekIntAck(int level)
{
// try to emulate VDP's reaction to 68000 int ack
if (level == 4) Pico.video.pending_ints = 0;
else if(level == 6) Pico.video.pending_ints &= ~0x20;
PicoCpu.irq = 0;
return CYCLONE_INT_ACK_AUTOVECTOR;
}
static void SekResetAck()
@ -69,7 +70,7 @@ static int SekUnrecognizedOpcode()
// see if we are not executing trash
if (pc < 0x200 || (pc > Pico.romsize+4 && (pc&0xe00000)!=0xe00000)) {
PicoCpu.cycles = 0;
PicoCpu.stopped = 1;
PicoCpu.state_flags |= 1;
return 1;
}
#ifdef EMU_M68K // debugging cyclone
@ -92,6 +93,11 @@ static int SekIntAckM68K(int level)
CPU_INT_LEVEL = 0;
return M68K_INT_ACK_AUTOVECTOR;
}
static int SekTasCallback(void)
{
return 0; // no writeback
}
#endif
@ -118,6 +124,7 @@ int SekInit()
m68k_set_cpu_type(M68K_CPU_TYPE_68000);
m68k_init();
m68k_set_int_ack_callback(SekIntAckM68K);
m68k_set_tas_instr_callback(SekTasCallback);
m68k_pulse_reset(); // Init cpu emulator
m68k_set_context(oldcontext);
}
@ -132,7 +139,7 @@ int SekReset()
if (Pico.rom==NULL) return 1;
#ifdef EMU_C68K
PicoCpu.stopped=0;
PicoCpu.state_flags=0;
PicoCpu.osp=0;
PicoCpu.srh =0x27; // Supervisor mode
PicoCpu.flags=4; // Z set
@ -161,6 +168,13 @@ int SekReset()
int SekInterrupt(int irq)
{
#if defined(EMU_C68K) && defined(EMU_M68K)
{
extern unsigned int dbg_irq_level;
dbg_irq_level=irq;
return 0;
}
#endif
#ifdef EMU_C68K
PicoCpu.irq=irq;
#endif