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runs code in 1M wram, cell arrange, decode (untested)

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@54 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-02-21 22:23:37 +00:00
parent 3a81ecde1c
commit fa1e5e2948
16 changed files with 787 additions and 551 deletions
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75
Pico/cd/gfx_cd.c
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@ -146,7 +146,7 @@ unsigned int gfx_cd_read(unsigned int a)
case 0x62: d = rot_comp.Reg_62; break;
case 0x64: d = rot_comp.Reg_64; break;
case 0x66: break;
default: dprintf("gfx_cd_read: unexpected address: %02x", a); break;
default: dprintf("gfx_cd_read FIXME: unexpected address: %02x", a); break;
}
dprintf("gfx_cd_read(%02x) = %04x", a, d);
@ -193,13 +193,82 @@ void gfx_cd_write(unsigned int a, unsigned int d)
gfx_cd_start();
return;
default: dprintf("gfx_cd_write: unexpected address: %02x", a); return;
default: dprintf("gfx_cd_write FIXME: unexpected address: %02x", a); return;
}
}
void gfx_cd_reset(void)
{
memset(&rot_comp.Reg_58, 0, 0/*sizeof(Pico_mcd->rot_comp)*/);
memset(&rot_comp.Reg_58, 0, sizeof(rot_comp));
}
// --------------------------------
#include "cell_map.c"
typedef unsigned short u16;
void DmaSlowCell(unsigned int source, unsigned int a, int len, unsigned char inc)
{
unsigned char *base;
unsigned int asrc, a2;
u16 *r;
base = Pico_mcd->word_ram1M[Pico_mcd->s68k_regs[3]&1];
switch (Pico.video.type)
{
case 1: // vram
r = Pico.vram;
for(; len; len--)
{
asrc = cell_map(source >> 2) << 2;
asrc |= source & 2;
// if(a&1) d=(d<<8)|(d>>8); // ??
r[a>>1] = *(u16 *)(base + asrc);
source += 2;
// AutoIncrement
a=(u16)(a+inc);
}
rendstatus|=0x10;
break;
case 3: // cram
Pico.m.dirtyPal = 1;
r = Pico.cram;
for(a2=a&0x7f; len; len--)
{
asrc = cell_map(source >> 2) << 2;
asrc |= source & 2;
r[a2>>1] = *(u16 *)(base + asrc);
source += 2;
// AutoIncrement
a2+=inc;
// good dest?
if(a2 >= 0x80) break;
}
a=(a&0xff00)|a2;
break;
case 5: // vsram[a&0x003f]=d;
r = Pico.vsram;
for(a2=a&0x7f; len; len--)
{
asrc = cell_map(source >> 2) << 2;
asrc |= source & 2;
r[a2>>1] = *(u16 *)(base + asrc);
source += 2;
// AutoIncrement
a2+=inc;
// good dest?
if(a2 >= 0x80) break;
}
a=(a&0xff00)|a2;
break;
}
// remember addr
Pico.video.addr=(u16)a;
}