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mcd, preparations for msu support

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This commit is contained in:
kub 2023-05-26 19:09:37 +00:00
parent 178a9b683c
commit 02ff025479
15 changed files with 153 additions and 170 deletions
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8
pico/cd/mcd.c
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@ -16,6 +16,7 @@ static unsigned int mcd_s68k_cycle_mult;
static unsigned int mcd_m68k_cycle_base;
static unsigned int mcd_s68k_cycle_base;
mcd_state *Pico_mcd;
PICO_INTERNAL void PicoInitMCD(void)
{
@ -25,6 +26,10 @@ PICO_INTERNAL void PicoInitMCD(void)
PICO_INTERNAL void PicoExitMCD(void)
{
cdd_unload();
if (Pico_mcd) {
plat_munmap(Pico_mcd, sizeof(mcd_state));
Pico_mcd = NULL;
}
}
PICO_INTERNAL void PicoPowerMCD(void)
@ -52,7 +57,8 @@ PICO_INTERNAL void PicoPowerMCD(void)
Pico_mcd->m.state_flags = PCD_ST_S68K_RST;
Pico_mcd->m.busreq = 2; // busreq on, s68k in reset
Pico_mcd->s68k_regs[3] = 1; // 2M word RAM mode, m68k access
memset(Pico_mcd->bios + 0x70, 0xff, 4);
if (Pico.romsize <= 0x20000)
memset(Pico.rom + 0x70, 0xff, 4);
}
void pcd_soft_reset(void)