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| version 1.5, 2004/08/08 06:59:22 | version 1.6, 2004/08/08 15:14:08 |
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| Line 7 | Line 7 |
| #include "makescrn.h" | #include "makescrn.h" |
| BYTE crtc_TEXTPAL[8]; | static const UINT8 defpaltext[8] = { |
| WORD crtc_GRPHPAL[2][64]; | |
| WORD crtc_PAL4096[4096]; | |
| static const UINT8 def_TEXTPAL[8] = { | |
| 0x00, 0x03, 0x0c, 0x0f, 0x30, 0x33, 0x3c, 0x3f}; | 0x00, 0x03, 0x0c, 0x0f, 0x30, 0x33, 0x3c, 0x3f}; |
| static const UINT16 def_GRPHPAL[64] = { | static const UINT16 defpalgrph[64] = { |
| 0x000, 0x00a, 0x0a0, 0x0aa, 0xa00, 0xa0a, 0xaa0, 0xaaa, | 0x000, 0x00a, 0x0a0, 0x0aa, 0xa00, 0xa0a, 0xaa0, 0xaaa, |
| 0x005, 0x00f, 0x0a5, 0x0af, 0xa05, 0xa0f, 0xaa5, 0xaaf, | 0x005, 0x00f, 0x0a5, 0x0af, 0xa05, 0xa0f, 0xaa5, 0xaaf, |
| 0x050, 0x05a, 0x0f0, 0x0fa, 0xa50, 0xa5a, 0xaf0, 0xafa, | 0x050, 0x05a, 0x0f0, 0x0fa, 0xa50, 0xa5a, 0xaf0, 0xafa, |
| Line 29 static const CRTCSTAT crtcdefault = { | Line 25 static const CRTCSTAT crtcdefault = { |
| 0xcc, // PAL_R; | 0xcc, // PAL_R; |
| 0xf0, // PAL_G; | 0xf0, // PAL_G; |
| 0x00, // PLY | 0x00, // PLY |
| {0, 1, 2, 3, 4, 5, 6, 7}, // TEXT_PAL[8] | // {0, 1, 2, 3, 4, 5, 6, 7}, // TEXT_PAL[8] |
| 0, // SCRN_BITS | 0, // SCRN_BITS |
| 0, // CRTC_NUM | 0, // CRTC_NUM |
| Line 41 static const CRTCSTAT crtcdefault = { | Line 37 static const CRTCSTAT crtcdefault = { |
| 28, // TXT_YS | 28, // TXT_YS |
| 320, // GRP_XL | 320, // GRP_XL |
| 200, // GRP_YL | 200, // GRP_YL |
| 0, // CPU_BANK | // 0, // CPU_BANK |
| 0, // CRT_BANK | // 0, // CRT_BANK |
| 200, // CRT_YL | 200, // CRT_YL |
| 232, // CRT_VS | 232, // CRT_VS |
| Line 281 void IOOUTCALL scrn_o(UINT port, REG8 va | Line 277 void IOOUTCALL scrn_o(UINT port, REG8 va |
| crtc_updt(); | crtc_updt(); |
| } | } |
| vrambank_patch(); | vrambank_patch(); |
| crtc.s.CPU_BANK = (BYTE)((crtc.s.SCRN_BITS & SCRN_ACCESSVRAM)?1:0); | // crtc.s.CPU_BANK = (BYTE)((crtc.s.SCRN_BITS & SCRN_ACCESSVRAM)?1:0); |
| crtc.s.CRT_BANK = (BYTE)((crtc.s.SCRN_BITS & SCRN_DISPVRAM)?1:0); | // crtc.s.CRT_BANK = (BYTE)((crtc.s.SCRN_BITS & SCRN_DISPVRAM)?1:0); |
| (void)port; | (void)port; |
| } | } |
| Line 315 REG8 IOINPCALL ply_i(UINT port) { | Line 311 REG8 IOINPCALL ply_i(UINT port) { |
| void IOOUTCALL palette_o(UINT port, REG8 value) { | void IOOUTCALL palette_o(UINT port, REG8 value) { |
| REG8 sft; | |
| UINT num; | |
| UINT pal; | UINT pal; |
| BYTE c; | |
| crtc.s.lastpal = (value & 0xf0); | crtc.s.lastpal = (value & 0xf0); |
| if (crtc.s.EXTPALMODE & 0x80) { | if (crtc.s.EXTPALMODE & 0x80) { |
| if ((crtc.s.EXTGRPHPAL & 0x88) != 0x80) { | if ((crtc.s.EXTGRPHPAL & 0x88) != 0x80) { |
| return; | return; |
| } | } |
| sft = (port >> (8 - 2)) & (3 << 2); | |
| if (pal_bank & PAL_4096) { // use 4096palettes | if (pal_bank & PAL_4096) { // use 4096palettes |
| switch(pal_bank & (PAL_4096FULL | PAL_4096BANK)) { | switch(pal_bank & (PAL_4096FULL | PAL_4096BANK)) { |
| case 0: | case 0: |
| pal = ((port & 0xcc) << 4) + ((value & 0xc0) >> 4); | num = ((port & 0xcc) << 4) + ((value & 0xc0) >> 4); |
| break; | break; |
| case 1: | case 1: |
| pal = ((port & 0xcc) << 2) + ((value & 0xc0) >> 6); | num = ((port & 0xcc) << 2) + ((value & 0xc0) >> 6); |
| break; | break; |
| default: | default: |
| pal = ((port & 0xff) << 4) + (crtc.s.lastpal >> 4); | num = ((port & 0xff) << 4) + (crtc.s.lastpal >> 4); |
| break; | break; |
| } | } |
| value &= 0xf; | pal = crtc.p.grph4096[num]; |
| switch(port & 0xff00) { | pal &= ~((0x0f) << sft); |
| case 0x1000: | pal |= (value & 0x0f) << sft; |
| crtc_PAL4096[pal] &= 0xff0; | crtc.p.grph4096[num] = pal; |
| crtc_PAL4096[pal] |= value; | pal_setgrph4096(num); |
| break; | |
| case 0x1100: | |
| crtc_PAL4096[pal] &= 0xf0f; | |
| crtc_PAL4096[pal] |= (value << 4); | |
| break; | |
| case 0x1200: | |
| crtc_PAL4096[pal] &= 0x0ff; | |
| crtc_PAL4096[pal] |= ((WORD)value << 8); | |
| break; | |
| } | |
| pal_setgrph4096(pal); | |
| } | } |
| else { | else { |
| c = ((port & 0x80) >> 5) | ((port & 0x08) >> 2) | | num = ((port & 0x80) >> 5) | ((port & 0x08) >> 2) | |
| ((value & 0x80) >> 7); | ((value & 0x80) >> 7); |
| if ((dispmode & SCRN64_MASK) == SCRN64_INVALID) { | if ((dispmode & SCRN64_MASK) == SCRN64_INVALID) { |
| c |= (c << 3); | num |= (num << 3); |
| } | } |
| else { | else { |
| c += ((port & 0x40) >> 1) | ((port & 0x04) << 2) | | num += ((port & 0x40) >> 1) | ((port & 0x04) << 2) | |
| ((value & 0x40) >> 3); | ((value & 0x40) >> 3); |
| } | } |
| value &= 0xf; | pal = crtc.p.grph[pal_bank][num]; |
| switch(port & 0xff00) { | pal &= ~((0x0f) << sft); |
| case 0x1000: | pal |= (value & 0x0f) << sft; |
| crtc_GRPHPAL[pal_bank][c] &= 0xff0; | crtc.p.grph[pal_bank][num] = pal; |
| crtc_GRPHPAL[pal_bank][c] |= value; | pal_setgrph(pal_bank, (REG8)num); |
| break; | |
| case 0x1100: | |
| crtc_GRPHPAL[pal_bank][c] &= 0xf0f; | |
| crtc_GRPHPAL[pal_bank][c] |= (value << 4); | |
| break; | |
| case 0x1200: | |
| crtc_GRPHPAL[pal_bank][c] &= 0x0ff; | |
| crtc_GRPHPAL[pal_bank][c] |= ((WORD)value << 8); | |
| break; | |
| } | |
| pal_setgrph(pal_bank, c); | |
| } | } |
| } | } |
| else { | else { |
| Line 414 void IOOUTCALL palette_o(UINT port, REG8 | Line 386 void IOOUTCALL palette_o(UINT port, REG8 |
| REG8 IOINPCALL palette_i(UINT port) { | REG8 IOINPCALL palette_i(UINT port) { |
| UINT c; | UINT num; |
| UINT pal; | |
| REG8 sft; | |
| if ((crtc.s.EXTPALMODE & 0x80) && ((crtc.s.EXTGRPHPAL & 0x88) == 0x88)) { | if ((crtc.s.EXTPALMODE & 0x80) && ((crtc.s.EXTGRPHPAL & 0x88) == 0x88)) { |
| if (pal_bank & PAL_4096) { // use 4096palettes | if (pal_bank & PAL_4096) { // use 4096palettes |
| switch(pal_bank & (PAL_4096FULL | PAL_4096BANK)) { | switch(pal_bank & (PAL_4096FULL | PAL_4096BANK)) { |
| case 0: | case 0: |
| c = ((port & 0xcc) << 4) | ((crtc.s.lastpal & 0xc0) >> 4); | num = ((port & 0xcc) << 4) | |
| ((crtc.s.lastpal & 0xc0) >> 4); | |
| break; | break; |
| case 1: | case 1: |
| c = ((port & 0xcc) << 2) | ((crtc.s.lastpal & 0xc0) >> 6); | num = ((port & 0xcc) << 2) | |
| ((crtc.s.lastpal & 0xc0) >> 6); | |
| break; | break; |
| default: | default: |
| c = ((port & 0xff) << 4) | (crtc.s.lastpal >> 4); | num = ((port & 0xff) << 4) | (crtc.s.lastpal >> 4); |
| break; | break; |
| } | } |
| switch(port & 0xff00) { | pal = crtc.p.grph4096[num]; |
| case 0x1000: | |
| return(crtc.s.lastpal | (crtc_PAL4096[c] & 0xf)); | |
| case 0x1100: | |
| return(crtc.s.lastpal | ((crtc_PAL4096[c] & 0xf0) >> 4)); | |
| case 0x1200: | |
| return(crtc.s.lastpal | ((crtc_PAL4096[c] & 0xf00) >> 8)); | |
| } | |
| } | } |
| else { | else { |
| c = ((port & 0x80) >> 5) | ((port & 0x08) >> 2) | | num = ((port & 0x80) >> 5) | ((port & 0x08) >> 2) | |
| ((crtc.s.lastpal & 0x80) >> 7); | ((crtc.s.lastpal & 0x80) >> 7); |
| if ((dispmode & SCRN64_MASK) == SCRN64_INVALID) { | if ((dispmode & SCRN64_MASK) == SCRN64_INVALID) { |
| c |= (c << 3); | num |= (num << 3); |
| } | } |
| else { | else { |
| c += ((port & 0x40) >> 1) | ((port & 0x04) << 2) | | num += ((port & 0x40) >> 1) | ((port & 0x04) << 2) | |
| ((crtc.s.lastpal & 0x40) >> 3); | ((crtc.s.lastpal & 0x40) >> 3); |
| } | } |
| switch(port & 0xff00) { | pal = crtc.p.grph[pal_bank][num]; |
| case 0x1000: | |
| return(crtc.s.lastpal | | |
| (crtc_GRPHPAL[pal_bank][c] & 0xf)); | |
| case 0x1100: | |
| return(crtc.s.lastpal | | |
| ((crtc_GRPHPAL[pal_bank][c] & 0xf0) >> 4)); | |
| case 0x1200: | |
| return(crtc.s.lastpal | | |
| ((crtc_GRPHPAL[pal_bank][c] & 0xf00) >> 8)); | |
| } | |
| } | } |
| sft = (port >> (8 - 2)) & (3 << 2); | |
| return((REG8)(crtc.s.lastpal + ((pal >> sft) & 0xf))); | |
| } | |
| else { | |
| return(0xff); | |
| } | } |
| return(0xff); | |
| } | } |
| Line 504 REG8 IOINPCALL extgrphpal_i(UINT port) { | Line 465 REG8 IOINPCALL extgrphpal_i(UINT port) { |
| void IOOUTCALL exttextpal_o(UINT port, REG8 value) { | void IOOUTCALL exttextpal_o(UINT port, REG8 value) { |
| if (crtc.s.EXTPALMODE & 0x80) { | if (crtc.s.EXTPALMODE & 0x80) { |
| crtc_TEXTPAL[port & 7] = value; | crtc.p.text[port & 7] = value; |
| pal_settext((REG8)(port & 7)); | pal_settext((REG8)(port & 7)); |
| } | } |
| } | } |
| Line 512 void IOOUTCALL exttextpal_o(UINT port, R | Line 473 void IOOUTCALL exttextpal_o(UINT port, R |
| REG8 IOINPCALL exttextpal_i(UINT port) { | REG8 IOINPCALL exttextpal_i(UINT port) { |
| if (crtc.s.EXTPALMODE & 0x80) { | if (crtc.s.EXTPALMODE & 0x80) { |
| return(crtc_TEXTPAL[port & 7]); | return(crtc.p.text[port & 7]); |
| } | } |
| return(0xff); | return(0xff); |
| } | } |
| Line 551 REG8 IOINPCALL blackctrl_i(UINT port) { | Line 512 REG8 IOINPCALL blackctrl_i(UINT port) { |
| static void resetpal(void) { | static void resetpal(void) { |
| CopyMemory(crtc_TEXTPAL, def_TEXTPAL, 8); | CopyMemory(crtc.p.text, defpaltext, sizeof(defpaltext)); |
| CopyMemory(crtc_GRPHPAL[0], def_GRPHPAL, 64*2); | CopyMemory(crtc.p.grph[0], defpalgrph, sizeof(defpalgrph)); |
| CopyMemory(crtc_GRPHPAL[1], def_GRPHPAL, 64*2); | CopyMemory(crtc.p.grph[1], defpalgrph, sizeof(defpalgrph)); |
| } | } |
| void crtc_initialize(void) { | void crtc_initialize(void) { |
| Line 562 void crtc_initialize(void) { | Line 523 void crtc_initialize(void) { |
| resetpal(); | resetpal(); |
| for (p=0; p<4096; p++) { | for (p=0; p<4096; p++) { |
| crtc_PAL4096[p] = p; | crtc.p.grph4096[p] = p; |
| } | } |
| } | } |