32x: add more regs, ignore purge space

git-svn-id: file:///home/notaz/opt/svn/PicoDrive@793 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-09-25 22:14:16 +00:00
parent 97d3f47fbe
commit 87accdf72d
3 changed files with 134 additions and 51 deletions

View file

@ -27,9 +27,10 @@ void p32x_update_irls(void)
elprintf(EL_32X, "update_irls: m %d, s %d", mlvl, slvl);
sh2_irl_irq(&msh2, mlvl);
if (mlvl)
p32x_poll_event(0);
sh2_irl_irq(&ssh2, slvl);
mlvl = mlvl ? 1 : 0;
slvl = slvl ? 1 : 0;
p32x_poll_event(mlvl | (slvl << 1), 0);
}
void Pico32xStartup(void)
@ -63,6 +64,7 @@ void PicoPower32x(void)
Pico32x.regs[0] = 0x0082; // SH2 reset?
Pico32x.vdp_regs[0x0a/2] = P32XV_VBLK|P32XV_HBLK|P32XV_PEN;
Pico32x.sh2_regs[0] = P32XS2_ADEN;
}
void PicoUnload32x(void)
@ -94,7 +96,7 @@ static void p32x_start_blank(void)
Pico32x.sh2irqs |= P32XI_VINT;
p32x_update_irls();
p32x_poll_event(1);
p32x_poll_event(3, 1);
}
// FIXME..
@ -127,12 +129,23 @@ static __inline void SekRunM68k(int cyc)
#define SH2_LINE_CYCLES 735
#define PICO_32X
#define RUN_SH2S \
#define RUN_SH2S_SIMPLE \
if (!(Pico32x.emu_flags & (P32XF_MSH2POLL|P32XF_MSH2VPOLL))) \
sh2_execute(&msh2, SH2_LINE_CYCLES); \
if (!(Pico32x.emu_flags & (P32XF_SSH2POLL|P32XF_SSH2VPOLL))) \
sh2_execute(&ssh2, SH2_LINE_CYCLES);
#define RUN_SH2S_LOCKSTEP \
{ \
int i; \
for (i = 0; i < SH2_LINE_CYCLES; i+= 3) { \
sh2_execute(&msh2, 3); \
sh2_execute(&ssh2, 3); \
} \
}
#define RUN_SH2S RUN_SH2S_SIMPLE
#include "../pico_cmn.c"
void PicoFrame32x(void)
@ -143,7 +156,7 @@ void PicoFrame32x(void)
if ((Pico32x.vdp_regs[0] & P32XV_Mx) != 0) // no forced blanking
Pico32x.vdp_regs[0x0a/2] &= ~P32XV_PEN; // no palette access
p32x_poll_event(1);
p32x_poll_event(3, 1);
PicoFrameStart();
PicoFrameHints();

View file

@ -24,7 +24,7 @@ static int p32x_poll_detect(struct poll_det *pd, u32 a, u32 pc, int is_vdp)
if (is_vdp)
flag <<= 3;
if (a - 2 <= pd->addr && pd->addr <= a + 2 && pd->pc == pc) {
if (a - 2 <= pd->addr && pd->addr <= a + 2) { // && pd->pc == pc) {
pd->cnt++;
if (pd->cnt > POLL_THRESHOLD) {
if (!(Pico32x.emu_flags & flag)) {
@ -55,9 +55,11 @@ static int p32x_poll_undetect(struct poll_det *pd, int is_vdp)
return ret;
}
void p32x_poll_event(int is_vdp)
void p32x_poll_event(int cpu_mask, int is_vdp)
{
if (cpu_mask & 1)
p32x_poll_undetect(&sh2_poll[0], is_vdp);
if (cpu_mask & 2)
p32x_poll_undetect(&sh2_poll[1], is_vdp);
}
@ -132,6 +134,8 @@ static u32 p32x_reg_read16(u32 a)
{
a &= 0x3e;
if (a == 2) // INTM, INTS
return ((Pico32x.sh2irqi[0] & P32XI_CMD) >> 4) | ((Pico32x.sh2irqi[1] & P32XI_CMD) >> 3);
#if 0
if ((a & 0x30) == 0x20)
return sh2_comm_faker(a);
@ -140,11 +144,7 @@ static u32 p32x_reg_read16(u32 a)
SekEndRun(16);
}
#endif
#ifdef FAKE_SH2
// fake only slave for now
if (a == 0x24 || a == 0x26)
return sh2_comm_faker(a);
#endif
if ((a & 0x30) == 0x30)
return p32x_pwm_read16(a);
@ -176,10 +176,12 @@ static void p32x_reg_write8(u32 a, u32 d)
if ((d & 1) && !(Pico32x.sh2irqi[0] & P32XI_CMD)) {
Pico32x.sh2irqi[0] |= P32XI_CMD;
p32x_update_irls();
SekEndRun(16);
}
if ((d & 2) && !(Pico32x.sh2irqi[1] & P32XI_CMD)) {
Pico32x.sh2irqi[1] |= P32XI_CMD;
p32x_update_irls();
SekEndRun(16);
}
break;
case 5: // bank
@ -192,6 +194,9 @@ static void p32x_reg_write8(u32 a, u32 d)
case 7: // DREQ ctl
r[6 / 2] = (r[6 / 2] & P32XS_FULL) | (d & (P32XS_68S|P32XS_DMA|P32XS_RV));
break;
case 0x1b: // TV
r[0x1a / 2] = d;
break;
}
}
@ -300,7 +305,9 @@ static u32 p32x_sh2reg_read16(u32 a, int cpuid)
switch (a) {
case 0x00: // adapter/irq ctl
return (r[0] & P32XS_FM) | P32XS2_ADEN | Pico32x.sh2irq_mask[cpuid];
return (r[0] & P32XS_FM) | Pico32x.sh2_regs[0] | Pico32x.sh2irq_mask[cpuid];
case 0x04: // H count
return Pico32x.sh2_regs[4 / 2];
case 0x10: // DREQ len
return r[a / 2];
}
@ -325,9 +332,20 @@ static u32 p32x_sh2reg_read16(u32 a, int cpuid)
static void p32x_sh2reg_write8(u32 a, u32 d, int cpuid)
{
a &= 0xff;
if (a == 1) {
Pico32x.sh2irq_mask[cpuid] = d & 0x0f;
switch (a) {
case 0: // FM
Pico32x.regs[0] &= ~P32XS_FM;
Pico32x.regs[0] |= (d << 8) & P32XS_FM;
break;
case 1: //
Pico32x.sh2irq_mask[cpuid] = d & 0x8f;
Pico32x.sh2_regs[0] &= ~0x80;
Pico32x.sh2_regs[0] |= d & 0x80;
p32x_update_irls();
break;
case 5: // H count
Pico32x.sh2_regs[4 / 2] = d & 0xff;
break;
}
}
@ -349,6 +367,10 @@ static void p32x_sh2reg_write16(u32 a, u32 d, int cpuid)
}
switch (a) {
case 0: // FM
Pico32x.regs[0] &= ~P32XS_FM;
Pico32x.regs[0] |= d & P32XS_FM;
break;
case 0x14: Pico32x.sh2irqs &= ~P32XI_VRES; goto irls;
case 0x16: Pico32x.sh2irqs &= ~P32XI_VINT; goto irls;
case 0x18: Pico32x.sh2irqs &= ~P32XI_HINT; goto irls;
@ -363,7 +385,23 @@ irls:
p32x_update_irls();
}
static u32 sh2_peripheral_read(u32 a, int id)
// ------------------------------------------------------------------
// SH2 internal peripherals
static u32 sh2_peripheral_read8(u32 a, int id)
{
u8 *r = (void *)Pico32xMem->sh2_peri_regs[id];
u32 d;
a &= 0x1ff;
d = r[a];
if (a == 4)
d = 0x84; // SCI SSR
elprintf(EL_32X, "%csh2 peri r8 [%08x] %02x @%06x", id ? 's' : 'm', a | ~0x1ff, d, sh2_pc(id));
return d;
}
static u32 sh2_peripheral_read32(u32 a, int id)
{
u32 d;
a &= 0x1fc;
@ -373,7 +411,16 @@ static u32 sh2_peripheral_read(u32 a, int id)
return d;
}
static void sh2_peripheral_write(u32 a, u32 d, int id)
static void sh2_peripheral_write8(u32 a, u32 d, int id)
{
u8 *r = (void *)Pico32xMem->sh2_peri_regs[id];
elprintf(EL_32X, "%csh2 peri w8 [%08x] %02x @%06x", id ? 's' : 'm', a, d, sh2_pc(id));
a &= 0x1ff;
r[a] = d;
}
static void sh2_peripheral_write32(u32 a, u32 d, int id)
{
unsigned int *r = Pico32xMem->sh2_peri_regs[id];
elprintf(EL_32X, "%csh2 peri w32 [%08x] %08x @%06x", id ? 's' : 'm', a, d, sh2_pc(id));
@ -614,38 +661,41 @@ u32 p32x_sh2_read8(u32 a, int id)
if (id == 1 && a < sizeof(Pico32xMem->sh2_rom_s))
return Pico32xMem->sh2_rom_s[a ^ 1];
if ((a & 0x0ffc0000) == 0x06000000)
if ((a & 0xdffc0000) == 0x06000000)
return Pico32xMem->sdram[(a & 0x3ffff) ^ 1];
if ((a & 0x0fc00000) == 0x02000000)
if ((a & 0xdfc00000) == 0x02000000)
if ((a & 0x003fffff) < Pico.romsize)
return Pico.rom[(a & 0x3fffff) ^ 1];
if ((a & ~0xfff) == 0xc0000000)
return Pico32xMem->data_array[id][(a & 0xfff) ^ 1];
if ((a & 0x0ffe0000) == 0x04000000) {
if ((a & 0xdffe0000) == 0x04000000) {
u8 *dram = (u8 *)Pico32xMem->dram[(Pico32x.vdp_regs[0x0a/2] & P32XV_FS) ^ 1];
return dram[(a & 0x1ffff) ^ 1];
}
if ((a & 0x0fffff00) == 0x4000) {
if ((a & 0xdfffff00) == 0x4000) {
d = p32x_sh2reg_read16(a, id);
goto out_16to8;
}
if ((a & 0x0fffff00) == 0x4100) {
if ((a & 0xdfffff00) == 0x4100) {
d = p32x_vdp_read16(a);
if (p32x_poll_detect(&sh2_poll[id], a, sh2_pc(id), 1))
ash2_end_run(8);
goto out_16to8;
}
if ((a & 0x0fffff00) == 0x4200) {
if ((a & 0xdfffff00) == 0x4200) {
d = Pico32xMem->pal[(a & 0x1ff) / 2];
goto out_16to8;
}
if ((a & 0xfffffe00) == 0xfffffe00)
return sh2_peripheral_read8(a, id);
elprintf(EL_UIO, "%csh2 unmapped r8 [%08x] %02x @%06x",
id ? 's' : 'm', a, d, sh2_pc(id));
return d;
@ -670,32 +720,32 @@ u32 p32x_sh2_read16(u32 a, int id)
if (id == 1 && a < sizeof(Pico32xMem->sh2_rom_s))
return *(u16 *)(Pico32xMem->sh2_rom_s + a);
if ((a & 0x0ffc0000) == 0x06000000)
if ((a & 0xdffc0000) == 0x06000000)
return ((u16 *)Pico32xMem->sdram)[(a & 0x3ffff) / 2];
if ((a & 0x0fc00000) == 0x02000000)
if ((a & 0xdfc00000) == 0x02000000)
if ((a & 0x003fffff) < Pico.romsize)
return ((u16 *)Pico.rom)[(a & 0x3fffff) / 2];
if ((a & ~0xfff) == 0xc0000000)
return ((u16 *)Pico32xMem->data_array[id])[(a & 0xfff) / 2];
if ((a & 0x0ffe0000) == 0x04000000)
if ((a & 0xdffe0000) == 0x04000000)
return Pico32xMem->dram[(Pico32x.vdp_regs[0x0a/2] & P32XV_FS) ^ 1][(a & 0x1ffff) / 2];
if ((a & 0x0fffff00) == 0x4000) {
if ((a & 0xdfffff00) == 0x4000) {
d = p32x_sh2reg_read16(a, id);
goto out;
}
if ((a & 0x0fffff00) == 0x4100) {
if ((a & 0xdfffff00) == 0x4100) {
d = p32x_vdp_read16(a);
if (p32x_poll_detect(&sh2_poll[id], a, sh2_pc(id), 1))
ash2_end_run(8);
goto out;
}
if ((a & 0x0fffff00) == 0x4200) {
if ((a & 0xdfffff00) == 0x4200) {
d = Pico32xMem->pal[(a & 0x1ff) / 2];
goto out;
}
@ -713,7 +763,7 @@ out:
u32 p32x_sh2_read32(u32 a, int id)
{
if ((a & 0xfffffe00) == 0xfffffe00)
return sh2_peripheral_read(a, id);
return sh2_peripheral_read32(a, id);
// elprintf(EL_UIO, "sh2 r32 [%08x] %08x @%06x", a, d, ash2_pc());
return (p32x_sh2_read16(a, id) << 16) | p32x_sh2_read16(a + 2, id);
@ -721,47 +771,59 @@ u32 p32x_sh2_read32(u32 a, int id)
void p32x_sh2_write8(u32 a, u32 d, int id)
{
if ((a & 0x0ffffc00) == 0x4000)
if ((a & 0xdffffc00) == 0x4000)
elprintf(EL_32X, "%csh2 w8 [%08x] %02x @%06x",
id ? 's' : 'm', a, d & 0xff, sh2_pc(id));
if ((a & 0x0ffc0000) == 0x06000000) {
if ((a & 0xdffc0000) == 0x06000000) {
Pico32xMem->sdram[(a & 0x3ffff) ^ 1] = d;
return;
}
if ((a & 0x0ffe0000) == 0x04000000) {
u8 *dram = (u8 *)Pico32xMem->dram[(Pico32x.vdp_regs[0x0a/2] & P32XV_FS) ^ 1];
if ((a & 0xdffc0000) == 0x04000000) {
u8 *dram;
if (!(a & 0x20000) || d) {
dram = (u8 *)Pico32xMem->dram[(Pico32x.vdp_regs[0x0a/2] & P32XV_FS) ^ 1];
dram[(a & 0x1ffff) ^ 1] = d;
return;
}
}
if ((a & ~0xfff) == 0xc0000000) {
Pico32xMem->data_array[id][(a & 0xfff) ^ 1] = d;
return;
}
if ((a & 0x0fffff00) == 0x4100) {
if ((a & 0xdfffff00) == 0x4100) {
p32x_vdp_write8(a, d);
return;
}
if ((a & 0x0fffff00) == 0x4000) {
if ((a & 0xdfffff00) == 0x4000) {
p32x_sh2reg_write8(a, d, id);
return;
}
if ((a & 0xfffffe00) == 0xfffffe00) {
sh2_peripheral_write8(a, d, id);
return;
}
elprintf(EL_UIO, "%csh2 unmapped w8 [%08x] %02x @%06x",
id ? 's' : 'm', a, d & 0xff, sh2_pc(id));
}
void p32x_sh2_write16(u32 a, u32 d, int id)
{
if ((a & 0x0ffffc00) == 0x4000)
if ((a & 0xdffffc00) == 0x4000)
elprintf(EL_32X, "%csh2 w16 [%08x] %04x @%06x",
id ? 's' : 'm', a, d & 0xffff, sh2_pc(id));
if ((a & 0x0ffc0000) == 0x06000000) {
// ignore "Associative purge space"
if ((a & 0xf8000000) == 0x40000000)
return;
if ((a & 0xdffc0000) == 0x06000000) {
((u16 *)Pico32xMem->sdram)[(a & 0x3ffff) / 2] = d;
return;
}
@ -771,23 +833,31 @@ void p32x_sh2_write16(u32 a, u32 d, int id)
return;
}
if ((a & 0x0ffe0000) == 0x04000000) {
Pico32xMem->dram[(Pico32x.vdp_regs[0x0a/2] & P32XV_FS) ^ 1][(a & 0x1ffff) / 2] = d;
if ((a & 0xdffc0000) == 0x04000000) {
u16 *pd = &Pico32xMem->dram[(Pico32x.vdp_regs[0x0a/2] & P32XV_FS) ^ 1][(a & 0x1ffff) / 2];
if (!(a & 0x20000)) {
*pd = d;
return;
}
// overwrite
if (!(d & 0xff00)) d |= *pd & 0xff00;
if (!(d & 0x00ff)) d |= *pd & 0x00ff;
*pd = d;
return;
}
if ((a & 0x0fffff00) == 0x4100) {
if ((a & 0xdfffff00) == 0x4100) {
p32x_vdp_write16(a, d);
return;
}
if ((a & 0x0ffffe00) == 0x4200) {
if ((a & 0xdffffe00) == 0x4200) {
Pico32xMem->pal[(a & 0x1ff) / 2] = d;
Pico32x.dirty_pal = 1;
return;
}
if ((a & 0x0fffff00) == 0x4000) {
if ((a & 0xdfffff00) == 0x4000) {
p32x_sh2reg_write16(a, d, id);
return;
}
@ -799,7 +869,7 @@ void p32x_sh2_write16(u32 a, u32 d, int id)
void p32x_sh2_write32(u32 a, u32 d, int id)
{
if ((a & 0xfffffe00) == 0xfffffe00) {
sh2_peripheral_write(a, d, id);
sh2_peripheral_write32(a, d, id);
return;
}

View file

@ -443,9 +443,9 @@ struct Pico32x
{
unsigned short regs[0x20];
unsigned short vdp_regs[0x10];
unsigned short sh2_regs[3];
unsigned char pending_fb;
unsigned char dirty_pal;
unsigned char pad[2];
unsigned int emu_flags;
unsigned char sh2irq_mask[2];
unsigned char sh2irqi[2]; // individual
@ -673,7 +673,7 @@ void PicoWrite8_32x(unsigned int a, unsigned int d);
void PicoWrite16_32x(unsigned int a, unsigned int d);
void PicoMemSetup32x(void);
void Pico32xSwapDRAM(int b);
void p32x_poll_event(int is_vdp);
void p32x_poll_event(int cpu_mask, int is_vdp);
// 32x/draw.c
void FinalizeLine32xRGB555(int sh, int line);