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Note about the black swirl

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This commit is contained in:
Angelo Salese 2013-09-05 01:25:13 +00:00
parent 3bcaea2f77
commit fc360c16e7
2 changed files with 5 additions and 3 deletions
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4
src/mame/machine/dc.c
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@ -559,11 +559,11 @@ WRITE64_MEMBER(dc_state::dc_g2_ctrl_w )
old = m_wave_dma.start & 1; old = m_wave_dma.start & 1;
m_wave_dma.start = dat & 1; m_wave_dma.start = dat & 1;
//#if DEBUG_AICA_DMA #if DEBUG_AICA_DMA
printf("AICA: G2-DMA start \n"); printf("AICA: G2-DMA start \n");
printf("DST %08x SRC %08x SIZE %08x IND %02x\n",m_wave_dma.aica_addr,m_wave_dma.root_addr,m_wave_dma.size,m_wave_dma.indirect); printf("DST %08x SRC %08x SIZE %08x IND %02x\n",m_wave_dma.aica_addr,m_wave_dma.root_addr,m_wave_dma.size,m_wave_dma.indirect);
printf("SEL %08x ST %08x FLAG %08x DIR %02x\n",m_wave_dma.sel,m_wave_dma.start,m_wave_dma.flag,m_wave_dma.dir); printf("SEL %08x ST %08x FLAG %08x DIR %02x\n",m_wave_dma.sel,m_wave_dma.start,m_wave_dma.flag,m_wave_dma.dir);
//#endif #endif
//mame_printf_verbose("SB_ADST data %08x\n",dat); //mame_printf_verbose("SB_ADST data %08x\n",dat);
if(((old & 1) == 0) && m_wave_dma.flag && m_wave_dma.start && ((m_wave_dma.sel & 2) == 0)) // 0 -> 1 if(((old & 1) == 0) && m_wave_dma.flag && m_wave_dma.start && ((m_wave_dma.sel & 2) == 0)) // 0 -> 1

4
src/mess/drivers/dccons.c
View File

@ -26,8 +26,10 @@
- Sega GT: no cursor on main menu; - Sega GT: no cursor on main menu;
- Tetris 4D: hangs at BPS FMV (bp 0C0B0C4E) - Tetris 4D: hangs at BPS FMV (bp 0C0B0C4E)
Note: Notes:
- DC US and DC PAL flash ROMs are definitely hacked, they are set to have Chinese instead of Japanese. - DC US and DC PAL flash ROMs are definitely hacked, they are set to have Chinese instead of Japanese.
- 0x1a002 of flash ROM returns the region type (0x30=Japan, 0x31=USA, 0x32=Europe). Amusingly, if the value
on a non-jp console is different than these ones, the system shows a black swirl (and nothing boots).
- gdi file for DCLP (a Dreamcast tester) doesn't have first two tracks info, they are: - gdi file for DCLP (a Dreamcast tester) doesn't have first two tracks info, they are:
1 0 4 2048 FILE0001.DUP 0 1 0 4 2048 FILE0001.DUP 0
2 1798 0 2352 FILE0002.DUP 0 2 1798 0 2352 FILE0002.DUP 0