Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-10-08 09:30:17 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

Fixed H-Blank IN regression, made CH2 DMA to fire irq via CPU cycles, miscellanea

Browse Source
This commit is contained in:
Angelo Salese 2013-08-25 23:01:09 +00:00
parent e2f109e05e
commit b6220ce5a5
4 changed files with 11 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/emu/machine/saturn.c
View File

@ -411,7 +411,7 @@ void saturn_state::scu_dma_direct(address_space &space, UINT8 dma_ch)
if(LOG_SCU) printf("Start Add %04x Destination Add %04x\n",m_scu.src_add[dma_ch],m_scu.dst_add[dma_ch]); if(LOG_SCU) printf("Start Add %04x Destination Add %04x\n",m_scu.src_add[dma_ch],m_scu.dst_add[dma_ch]);
} }
/* TODO: Game Basic and World Cup 98 trips this, according to the docs the SCU can't transfer from BIOS area (can't communicate from/to that bus) */ /* Game Basic and World Cup 98 trips this, according to the docs the SCU can't transfer from BIOS area (can't communicate from/to that bus) */
if(BIOS_BUS(m_scu.src[dma_ch])) if(BIOS_BUS(m_scu.src[dma_ch]))
{ {
popmessage("Warning: SCU transfer from BIOS area, contact MAMEdev"); popmessage("Warning: SCU transfer from BIOS area, contact MAMEdev");

8
src/mame/machine/dc.c
View File

@ -145,7 +145,7 @@ WRITE8_MEMBER(dc_state::pvr_irq)
break; break;
case powervr2_device::HBL_IN_IRQ: case powervr2_device::HBL_IN_IRQ:
dc_sysctrl_regs[SB_ISTNRM] |= IST_VBL_IN; dc_sysctrl_regs[SB_ISTNRM] |= IST_HBL_IN;
break; break;
case powervr2_device::EOR_VIDEO_IRQ: case powervr2_device::EOR_VIDEO_IRQ:
@ -431,9 +431,9 @@ WRITE64_MEMBER(dc_state::dc_sysctrl_w )
else //direct texture path else //direct texture path
dc_sysctrl_regs[SB_C2DSTAT]=address+ddtdata.length; dc_sysctrl_regs[SB_C2DSTAT]=address+ddtdata.length;
/* 200 usecs breaks sfz3upper */ /* TODO: timing is a guess */
machine().scheduler().timer_set(attotime::from_usec(50), timer_expired_delegate(FUNC(dc_state::ch2_dma_irq),this)); machine().scheduler().timer_set(m_maincpu->cycles_to_attotime(ddtdata.length/4), timer_expired_delegate(FUNC(dc_state::ch2_dma_irq),this));
/* simulate YUV FIFO processing here */ /* simulate YUV FIFO processing here (HACK! should go inside the YUV FIFO itself) */
if((address & 0x1800000) == 0x0800000) if((address & 0x1800000) == 0x0800000)
machine().scheduler().timer_set(attotime::from_usec(500), timer_expired_delegate(FUNC(dc_state::yuv_fifo_irq),this)); machine().scheduler().timer_set(attotime::from_usec(500), timer_expired_delegate(FUNC(dc_state::yuv_fifo_irq),this));
} }

4
src/mame/video/powervr2.c
View File

@ -3165,17 +3165,17 @@ void powervr2_device::device_reset()
dc_framebuffer_ram = state->dc_framebuffer_ram.target(); dc_framebuffer_ram = state->dc_framebuffer_ram.target();
} }
/* called by TIMER_ADD_PERIODIC, in driver sections */ /* called by TIMER_ADD_PERIODIC, in driver sections (controlled by SPG, that's a PVR sub-device) */
void powervr2_device::pvr_scanline_timer(int vpos) void powervr2_device::pvr_scanline_timer(int vpos)
{ {
int vbin_line = spg_vblank_int & 0x3ff; int vbin_line = spg_vblank_int & 0x3ff;
int vbout_line = (spg_vblank_int >> 16) & 0x3ff; int vbout_line = (spg_vblank_int >> 16) & 0x3ff;
int spg_hblank_int & 0x3ff
if(vbin_line == vpos) if(vbin_line == vpos)
irq_cb(VBL_IN_IRQ); irq_cb(VBL_IN_IRQ);
if(vbout_line == vpos) if(vbout_line == vpos)
irq_cb(VBL_OUT_IRQ); irq_cb(VBL_OUT_IRQ);
} }

8
src/mess/drivers/dccons.c
View File

@ -49,8 +49,8 @@
READ64_MEMBER(dc_cons_state::dcus_idle_skip_r ) READ64_MEMBER(dc_cons_state::dcus_idle_skip_r )
{ {
if (space.device().safe_pc()==0xc0ba52a) //if (space.device().safe_pc()==0xc0ba52a)
space.device().execute().spin_until_time(attotime::from_usec(2500)); // space.device().execute().spin_until_time(attotime::from_usec(2500));
// device_spinuntil_int(&space.device()); // device_spinuntil_int(&space.device());
return dc_ram[0x2303b0/8]; return dc_ram[0x2303b0/8];
@ -58,8 +58,8 @@ READ64_MEMBER(dc_cons_state::dcus_idle_skip_r )
READ64_MEMBER(dc_cons_state::dcjp_idle_skip_r ) READ64_MEMBER(dc_cons_state::dcjp_idle_skip_r )
{ {
if (space.device().safe_pc()==0xc0bac62) //if (space.device().safe_pc()==0xc0bac62)
space.device().execute().spin_until_time(attotime::from_usec(2500)); // space.device().execute().spin_until_time(attotime::from_usec(2500));
// device_spinuntil_int(&space.device()); // device_spinuntil_int(&space.device());
return dc_ram[0x2302f8/8]; return dc_ram[0x2302f8/8];