RaySollium99/picodrive
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region detection, cd states wip, fixes, stuff

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@25 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-01-28 22:51:16 +00:00
parent cb0316e4c5
commit 51a902ae25
26 changed files with 520 additions and 291 deletions
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21
Pico/cd/Pico.c
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@ -11,7 +11,7 @@
#include "../sound/sound.h"
static int counter75hz = 0; // TODO: move 2 context
extern unsigned char formatted_bram[8*0x10];
int PicoInitMCD(void)
@ -30,15 +30,22 @@ void PicoExitMCD(void)
int PicoResetMCD(int hard)
{
// clear everything except BIOS
memset(Pico_mcd->prg_ram, 0, sizeof(mcd_state) - sizeof(Pico_mcd->bios));
memset(Pico_mcd->prg_ram, 0, sizeof(Pico_mcd->prg_ram));
memset(Pico_mcd->word_ram, 0, sizeof(Pico_mcd->word_ram));
if (hard) {
memset(Pico_mcd->bram, 0, sizeof(Pico_mcd->bram));
memcpy(Pico_mcd->bram + sizeof(Pico_mcd->bram) - 8*0x10, formatted_bram, 8*0x10);
}
memset(Pico_mcd->s68k_regs, 0, sizeof(Pico_mcd->s68k_regs));
*(unsigned int *)(Pico_mcd->bios + 0x70) = 0xffffffff; // reset hint vector (simplest way to implement reg6)
PicoMCD |= 2; // s68k reset pending. TODO: move
Pico_mcd->m.state_flags |= 2; // s68k reset pending
Pico_mcd->s68k_regs[3] = 1; // 2M word RAM mode with m68k access after reset
counter75hz = 0;
Pico_mcd->m.counter75hz = 0;
LC89510_Reset();
Reset_CD();
gfx_cd_reset();
return 0;
}
@ -235,8 +242,8 @@ static int PicoFrameHintsMCD(void)
total_z80+=z80_run(z80CycleAim-total_z80);
}
if ((counter75hz+=10) >= counter75hz_lim) {
counter75hz -= counter75hz_lim;
if ((Pico_mcd->m.counter75hz+=10) >= counter75hz_lim) {
Pico_mcd->m.counter75hz -= counter75hz_lim;
Check_CD_Command();
}