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cd: clean up dmna handling, stuff

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This commit is contained in:
notaz 2013-08-28 03:07:33 +03:00
parent 89dbbf2b2f
commit ba6e8bfd4b
3 changed files with 54 additions and 38 deletions
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17
pico/cd/mcd.c
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@ -252,15 +252,18 @@ int pcd_sync_s68k(unsigned int m68k_target, int m68k_poll_sync)
#undef now
}
#define pcd_run_cpus_normal pcd_run_cpus
//#define pcd_run_cpus_lockstep pcd_run_cpus
static void SekSyncM68k(void);
static void pcd_run_cpus(int m68k_cycles)
static inline void pcd_run_cpus_normal(int m68k_cycles)
{
SekCycleAim += m68k_cycles;
if (Pico_mcd->m.m68k_poll_cnt >= 16 && !SekShouldInterrupt()) {
int s68k_left = pcd_sync_s68k(SekCycleAim, 1);
if (s68k_left <= 0) {
elprintf(EL_CDPOLL, "m68k poll [%02x] %d @%06x",
elprintf(EL_CDPOLL, "m68k poll [%02x] x%d @%06x",
Pico_mcd->m.m68k_poll_a, Pico_mcd->m.m68k_poll_cnt, SekPc);
SekCycleCnt = SekCycleAim;
return;
@ -271,6 +274,16 @@ static void pcd_run_cpus(int m68k_cycles)
SekSyncM68k();
}
static inline void pcd_run_cpus_lockstep(int m68k_cycles)
{
unsigned int target = SekCycleAim + m68k_cycles;
do {
SekCycleAim += 8;
SekSyncM68k();
pcd_sync_s68k(SekCycleAim, 0);
} while (CYCLES_GT(target, SekCycleAim));
}
#define PICO_CD
#define CPUS_RUN(m68k_cycles) \
pcd_run_cpus(m68k_cycles)