RaySollium99/picodrive
1
0
Fork 0
mirror of https://github.com/RaySollium99/picodrive.git synced 2025-09-05 15:27:46 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

split memories away from Pico

Browse source 
saves ~3k of code on ARM because Pico no longer crosses ldr limit
This commit is contained in:
notaz 2017-10-05 02:06:21 +03:00
parent e64886365d
commit 88fd63ad10
30 changed files with 633 additions and 587 deletions
Download patch file Download diff file Expand all files Collapse all files

20
pico/sms.c
View file

@ -23,7 +23,7 @@ static unsigned char vdp_data_read(void)
struct PicoVideo *pv = &Pico.video;
unsigned char d;
d = Pico.vramb[pv->addr];
d = PicoMem.vramb[pv->addr];
pv->addr = (pv->addr + 1) & 0x3fff;
pv->pending = 0;
return d;
@ -44,10 +44,10 @@ static void vdp_data_write(unsigned char d)
struct PicoVideo *pv = &Pico.video;
if (pv->type == 3) {
Pico.cram[pv->addr & 0x1f] = d;
PicoMem.cram[pv->addr & 0x1f] = d;
Pico.m.dirtyPal = 1;
} else {
Pico.vramb[pv->addr] = d;
PicoMem.vramb[pv->addr] = d;
}
pv->addr = (pv->addr + 1) & 0x3fff;
@ -180,7 +180,7 @@ static void xwrite(unsigned int a, unsigned char d)
{
elprintf(EL_IO, "z80 write [%04x] %02x", a, d);
if (a >= 0xc000)
Pico.zram[a & 0x1fff] = d;
PicoMem.zram[a & 0x1fff] = d;
if (a >= 0xfff8)
write_bank(a, d);
}
@ -195,7 +195,7 @@ void PicoPowerMS(void)
{
int s, tmp;
memset(&Pico.ram,0,(unsigned char *)&Pico.rom - Pico.ram);
memset(&PicoMem,0,sizeof(PicoMem));
memset(&Pico.video,0,sizeof(Pico.video));
memset(&Pico.m,0,sizeof(Pico.m));
Pico.m.pal = 0;
@ -219,11 +219,11 @@ void PicoPowerMS(void)
void PicoMemSetupMS(void)
{
z80_map_set(z80_read_map, 0x0000, 0xbfff, Pico.rom, 0);
z80_map_set(z80_read_map, 0xc000, 0xdfff, Pico.zram, 0);
z80_map_set(z80_read_map, 0xe000, 0xffff, Pico.zram, 0);
z80_map_set(z80_read_map, 0xc000, 0xdfff, PicoMem.zram, 0);
z80_map_set(z80_read_map, 0xe000, 0xffff, PicoMem.zram, 0);
z80_map_set(z80_write_map, 0x0000, 0xbfff, xwrite, 1);
z80_map_set(z80_write_map, 0xc000, 0xdfff, Pico.zram, 0);
z80_map_set(z80_write_map, 0xc000, 0xdfff, PicoMem.zram, 0);
z80_map_set(z80_write_map, 0xe000, 0xffff, xwrite, 1);
#ifdef _USE_DRZ80
@ -232,8 +232,8 @@ void PicoMemSetupMS(void)
#endif
#ifdef _USE_CZ80
Cz80_Set_Fetch(&CZ80, 0x0000, 0xbfff, (FPTR)Pico.rom);
Cz80_Set_Fetch(&CZ80, 0xc000, 0xdfff, (FPTR)Pico.zram);
Cz80_Set_Fetch(&CZ80, 0xe000, 0xffff, (FPTR)Pico.zram);
Cz80_Set_Fetch(&CZ80, 0xc000, 0xdfff, (FPTR)PicoMem.zram);
Cz80_Set_Fetch(&CZ80, 0xe000, 0xffff, (FPTR)PicoMem.zram);
Cz80_Set_INPort(&CZ80, z80_sms_in);
Cz80_Set_OUTPort(&CZ80, z80_sms_out);
#endif