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reios: ignore high order bits for FAD 

Mask FAD with ffffff. Apparently the regular BIOS does the same. Fixes
bogus FAD issued by Guilty Gear X when playing CD audio.
Issue  #1124
This commit is contained in:
Flyinghead 2023-07-05 10:23:54 +02:00
parent a870fb7f6c
commit 30e66d1c17
1 changed files with 7 additions and 7 deletions
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14
core/reios/gdrom_hle.cpp
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@ -109,7 +109,7 @@ static void read_sectors_to(u32 addr, u32 sector, u32 count)
static void GDROM_HLE_ReadDMA()
{
u32 fad = gd_hle_state.params[0];
u32 fad = gd_hle_state.params[0] & 0xffffff;
u32 nsect = gd_hle_state.params[1];
u32 buffer = gd_hle_state.params[2];
// params[3] 0
@ -123,7 +123,7 @@ static void GDROM_HLE_ReadDMA()
static void GDROM_HLE_ReadPIO()
{
u32 fad = gd_hle_state.params[0];
u32 fad = gd_hle_state.params[0] & 0xffffff;
u32 nsect = gd_hle_state.params[1];
u32 buffer = gd_hle_state.params[2];
// params[3] seekAhead (wince) or 0
@ -309,8 +309,8 @@ static void GD_HLE_Command(gd_command cc)
case GDCC_PLAY2:
{
cdda.StartAddr.FAD = gd_hle_state.params[0];
cdda.EndAddr.FAD = gd_hle_state.params[1];
cdda.StartAddr.FAD = gd_hle_state.params[0] & 0xffffff;
cdda.EndAddr.FAD = gd_hle_state.params[1] & 0xffffff;
cdda.repeats = gd_hle_state.params[2];
// params[3] debug (0)
DEBUG_LOG(REIOS, "GDROM: CMD PLAYSEC from %d to %d repeats %d", cdda.StartAddr.FAD, cdda.EndAddr.FAD, cdda.repeats);
@ -337,7 +337,7 @@ static void GD_HLE_Command(gd_command cc)
case GDCC_SEEK:
DEBUG_LOG(REIOS, "GDROM: CMD SEEK");
cdda.CurrAddr.FAD = cdda.StartAddr.FAD = gd_hle_state.params[0];
cdda.CurrAddr.FAD = cdda.StartAddr.FAD = gd_hle_state.params[0] & 0xffffff;
// params[1] debug (0)
cdda.status = cdda_t::Paused;
SecNumber.Status = GD_PAUSE;
@ -382,7 +382,7 @@ static void GD_HLE_Command(gd_command cc)
case GDCC_DMA_READ_REQ:
{
u32 sector = gd_hle_state.params[0];
u32 sector = gd_hle_state.params[0] & 0xffffff;
u32 num = gd_hle_state.params[1];
DEBUG_LOG(REIOS, "GDROM: CMD READ Sector=%d, Num=%d", sector, num);
@ -509,7 +509,7 @@ static void GD_HLE_Command(gd_command cc)
case GDCC_MULTI_DMAREAD:
case GDCC_MULTI_PIOREAD:
{
u32 sector = gd_hle_state.params[0];
u32 sector = gd_hle_state.params[0] & 0xffffff;
u32 num = gd_hle_state.params[1];
// params[2] seekAhead (wince)
bool dma = cc == GDCC_MULTI_DMAREAD;