#include "../PicoInt.h"
-#define rot_comp Pico_mcd->rot_comp
+#define _rot_comp Pico_mcd->rot_comp
static const int Table_Rot_Time[] =
{
{
int upd_len;
- // rot_comp.XD_Mul = ((rot_comp.Reg_5C & 0x1f) + 1) * 4; // unused
- rot_comp.Function = (rot_comp.Reg_58 & 7) | (Pico_mcd->s68k_regs[3] & 0x18); // Jmp_Adr
- // rot_comp.Buffer_Adr = (rot_comp.Reg_5E & 0xfff8) << 2; // unused?
- rot_comp.YD = (rot_comp.Reg_60 >> 3) & 7;
- rot_comp.Vector_Adr = (rot_comp.Reg_66 & 0xfffe) << 2;
+ // _rot_comp.XD_Mul = ((_rot_comp.Reg_5C & 0x1f) + 1) * 4; // unused
+ _rot_comp.Function = (_rot_comp.Reg_58 & 7) | (Pico_mcd->s68k_regs[3] & 0x18); // Jmp_Adr
+ // _rot_comp.Buffer_Adr = (_rot_comp.Reg_5E & 0xfff8) << 2; // unused?
+ _rot_comp.YD = (_rot_comp.Reg_60 >> 3) & 7;
+ _rot_comp.Vector_Adr = (_rot_comp.Reg_66 & 0xfffe) << 2;
- upd_len = (rot_comp.Reg_62 >> 3) & 0x3f;
+ upd_len = (_rot_comp.Reg_62 >> 3) & 0x3f;
upd_len = Table_Rot_Time[upd_len];
- rot_comp.Draw_Speed = rot_comp.Float_Part = upd_len;
+ _rot_comp.Draw_Speed = _rot_comp.Float_Part = upd_len;
- rot_comp.Reg_58 |= 0x8000; // Stamp_Size, we start a new GFX operation
+ _rot_comp.Reg_58 |= 0x8000; // Stamp_Size, we start a new GFX operation
- switch (rot_comp.Reg_58 & 6) // Scr_16?
+ switch (_rot_comp.Reg_58 & 6) // Scr_16?
{
case 0: // ?
- rot_comp.Stamp_Map_Adr = (rot_comp.Reg_5A & 0xff80) << 2;
+ _rot_comp.Stamp_Map_Adr = (_rot_comp.Reg_5A & 0xff80) << 2;
break;
case 2: // .Dot_32
- rot_comp.Stamp_Map_Adr = (rot_comp.Reg_5A & 0xffe0) << 2;
+ _rot_comp.Stamp_Map_Adr = (_rot_comp.Reg_5A & 0xffe0) << 2;
break;
case 4: // .Scr_16
- rot_comp.Stamp_Map_Adr = 0x20000;
+ _rot_comp.Stamp_Map_Adr = 0x20000;
break;
case 6: // .Scr_16_Dot_32
- rot_comp.Stamp_Map_Adr = (rot_comp.Reg_5A & 0xe000) << 2;
+ _rot_comp.Stamp_Map_Adr = (_rot_comp.Reg_5A & 0xe000) << 2;
break;
}
- dprintf("gfx_cd_start, stamp_map_addr=%06x", rot_comp.Stamp_Map_Adr);
+ dprintf("gfx_cd_start, stamp_map_addr=%06x", _rot_comp.Stamp_Map_Adr);
gfx_cd_update();
}
static void gfx_completed(void)
{
- rot_comp.Reg_58 &= 0x7fff; // Stamp_Size
- rot_comp.Reg_64 = 0;
+ _rot_comp.Reg_58 &= 0x7fff; // Stamp_Size
+ _rot_comp.Reg_64 = 0;
if (Pico_mcd->s68k_regs[0x33] & (1<<1))
{
dprintf("gfx_cd irq 1");
unsigned int XD, Buffer_Adr;
int DYXS;
- XD = rot_comp.Reg_60 & 7;
- Buffer_Adr = ((rot_comp.Reg_5E & 0xfff8) + rot_comp.YD) << 2;
- ecx = *(unsigned int *)(Pico_mcd->word_ram2M + rot_comp.Vector_Adr);
+ XD = _rot_comp.Reg_60 & 7;
+ Buffer_Adr = ((_rot_comp.Reg_5E & 0xfff8) + _rot_comp.YD) << 2;
+ ecx = *(unsigned int *)(Pico_mcd->word_ram2M + _rot_comp.Vector_Adr);
edx = ecx >> 16;
ecx = (ecx & 0xffff) << 8;
edx <<= 8;
- DYXS = *(int *)(Pico_mcd->word_ram2M + rot_comp.Vector_Adr + 4);
- rot_comp.Vector_Adr += 8;
+ DYXS = *(int *)(Pico_mcd->word_ram2M + _rot_comp.Vector_Adr + 4);
+ _rot_comp.Vector_Adr += 8;
// MAKE_IMAGE_LINE
while (H_Dot)
Next_Pixel:
- ecx += (DYXS << 16) >> 16; // rot_comp.DXS;
- edx += DYXS >> 16; // rot_comp.DYS;
+ ecx += (DYXS << 16) >> 16; // _rot_comp.DXS;
+ edx += DYXS >> 16; // _rot_comp.DYS;
XD++;
if (XD >= 8)
{
- Buffer_Adr += ((rot_comp.Reg_5C & 0x1f) + 1) << 5;
+ Buffer_Adr += ((_rot_comp.Reg_5C & 0x1f) + 1) << 5;
XD = 0;
}
H_Dot--;
// nothing_to_draw:
- rot_comp.YD++;
- // rot_comp.V_Dot--; // will be done by caller
+ _rot_comp.YD++;
+ // _rot_comp.V_Dot--; // will be done by caller
}
-void gfx_cd_update(void)
+PICO_INTERNAL void gfx_cd_update(void)
{
- int V_Dot = rot_comp.Reg_64 & 0xff;
+ int V_Dot = _rot_comp.Reg_64 & 0xff;
int jobs;
- dprintf("gfx_cd_update, Reg_64 = %04x", rot_comp.Reg_64);
+ dprintf("gfx_cd_update, Reg_64 = %04x", _rot_comp.Reg_64);
if (!V_Dot)
{
return;
}
- jobs = rot_comp.Float_Part >> 16;
+ jobs = _rot_comp.Float_Part >> 16;
if (!jobs)
{
- rot_comp.Float_Part += rot_comp.Draw_Speed;
+ _rot_comp.Float_Part += _rot_comp.Draw_Speed;
return;
}
- rot_comp.Float_Part &= 0xffff;
- rot_comp.Float_Part += rot_comp.Draw_Speed;
+ _rot_comp.Float_Part &= 0xffff;
+ _rot_comp.Float_Part += _rot_comp.Draw_Speed;
if (PicoOpt & 0x1000) // scale/rot enabled
{
- unsigned int func = rot_comp.Function;
- unsigned int H_Dot = rot_comp.Reg_62 & 0x1ff;
- unsigned short *stamp_base = (unsigned short *) (Pico_mcd->word_ram2M + rot_comp.Stamp_Map_Adr);
+ unsigned int func = _rot_comp.Function;
+ unsigned int H_Dot = _rot_comp.Reg_62 & 0x1ff;
+ unsigned short *stamp_base = (unsigned short *) (Pico_mcd->word_ram2M + _rot_comp.Stamp_Map_Adr);
while (jobs--)
{
V_Dot -= jobs;
}
- rot_comp.Reg_64 = V_Dot;
+ _rot_comp.Reg_64 = V_Dot;
}
-unsigned int gfx_cd_read(unsigned int a)
+PICO_INTERNAL_ASM unsigned int gfx_cd_read(unsigned int a)
{
unsigned int d = 0;
switch (a) {
- case 0x58: d = rot_comp.Reg_58; break;
- case 0x5A: d = rot_comp.Reg_5A; break;
- case 0x5C: d = rot_comp.Reg_5C; break;
- case 0x5E: d = rot_comp.Reg_5E; break;
- case 0x60: d = rot_comp.Reg_60; break;
- case 0x62: d = rot_comp.Reg_62; break;
- case 0x64: d = rot_comp.Reg_64; break;
+ case 0x58: d = _rot_comp.Reg_58; break;
+ case 0x5A: d = _rot_comp.Reg_5A; break;
+ case 0x5C: d = _rot_comp.Reg_5C; break;
+ case 0x5E: d = _rot_comp.Reg_5E; break;
+ case 0x60: d = _rot_comp.Reg_60; break;
+ case 0x62: d = _rot_comp.Reg_62; break;
+ case 0x64: d = _rot_comp.Reg_64; break;
case 0x66: break;
default: dprintf("gfx_cd_read FIXME: unexpected address: %02x", a); break;
}
return d;
}
-void gfx_cd_write16(unsigned int a, unsigned int d)
+PICO_INTERNAL_ASM void gfx_cd_write16(unsigned int a, unsigned int d)
{
dprintf("gfx_cd_write16(%x, %04x)", a, d);
switch (a) {
case 0x58: // .Reg_Stamp_Size
- rot_comp.Reg_58 = d & 7;
+ _rot_comp.Reg_58 = d & 7;
return;
case 0x5A: // .Reg_Stamp_Adr
- rot_comp.Reg_5A = d & 0xffe0;
+ _rot_comp.Reg_5A = d & 0xffe0;
return;
case 0x5C: // .Reg_IM_VCell_Size
- rot_comp.Reg_5C = d & 0x1f;
+ _rot_comp.Reg_5C = d & 0x1f;
return;
case 0x5E: // .Reg_IM_Adr
- rot_comp.Reg_5E = d & 0xFFF8;
+ _rot_comp.Reg_5E = d & 0xFFF8;
return;
case 0x60: // .Reg_IM_Offset
- rot_comp.Reg_60 = d & 0x3f;
+ _rot_comp.Reg_60 = d & 0x3f;
return;
case 0x62: // .Reg_IM_HDot_Size
- rot_comp.Reg_62 = d & 0x1ff;
+ _rot_comp.Reg_62 = d & 0x1ff;
return;
case 0x64: // .Reg_IM_VDot_Size
- rot_comp.Reg_64 = d & 0xff; // V_Dot, must be 32bit?
+ _rot_comp.Reg_64 = d & 0xff; // V_Dot, must be 32bit?
return;
case 0x66: // .Reg_Vector_Adr
- rot_comp.Reg_66 = d & 0xfffe;
+ _rot_comp.Reg_66 = d & 0xfffe;
if (Pico_mcd->s68k_regs[3]&4) return; // can't do tanformations in 1M mode
gfx_cd_start();
return;
}
-void gfx_cd_reset(void)
+PICO_INTERNAL void gfx_cd_reset(void)
{
- memset(&rot_comp.Reg_58, 0, sizeof(rot_comp));
+ memset(&_rot_comp.Reg_58, 0, sizeof(_rot_comp));
}
#include "cell_map.c"
+#ifndef UTYPES_DEFINED
typedef unsigned short u16;
+#endif
// check: Heart of the alien, jaguar xj 220
-void DmaSlowCell(unsigned int source, unsigned int a, int len, unsigned char inc)
+PICO_INTERNAL void DmaSlowCell(unsigned int source, unsigned int a, int len, unsigned char inc)
{
unsigned char *base;
unsigned int asrc, a2;
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