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32x: various gfx related bugfixes

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@856 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2010-01-10 22:58:13 +00:00
parent 5a68108691
commit e51e5983fe
6 changed files with 45 additions and 27 deletions
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6
pico/32x/memory.c
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@ -341,6 +341,9 @@ static void p32x_vdp_write8(u32 a, u32 d)
Pico32x.dirty_pal = 1;
r[0] = (r[0] & P32XV_nPAL) | (d & 0xff);
break;
case 0x03: // shift (for pp mode)
r[2 / 2] = d & 1;
break;
case 0x05: // fill len
r[4 / 2] = d & 0xff;
break;
@ -1050,8 +1053,9 @@ static int REGPARM(3) sh2_write8_cs0(u32 a, u32 d, int id)
return sh2_write8_unmapped(a, d, id);
}
/* quirk: in both normal and overwrite areas only nonzero values go through */
#define sh2_write8_dramN(n) \
if (!(a & 0x20000) || d) { \
if ((d & 0xff) != 0) { \
u8 *dram = (u8 *)Pico32xMem->dram[n]; \
dram[(a & 0x1ffff) ^ 1] = d; \
} \