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gtia.c
1290 lines (1212 loc) · 42.6 KB
/
gtia.c
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/*
* gtia.c - GTIA chip emulation
*
* Copyright (C) 1995-1998 David Firth
* Copyright (C) 1998-2005 Atari800 development team (see DOC/CREDITS)
*
* This file is part of the Atari800 emulator project which emulates
* the Atari 400, 800, 800XL, 130XE, and 5200 8-bit computers.
*
* Atari800 is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Atari800 is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Atari800; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include <string.h>
#include "antic.h"
#include "cassette.h"
#include "gtia.h"
#ifndef BASIC
#include "input.h"
#include "statesav.h"
#endif
#include "pokeysnd.h"
#include "screen.h"
/* GTIA Registers ---------------------------------------------------------- */
UBYTE GTIA_M0PL;
UBYTE GTIA_M1PL;
UBYTE GTIA_M2PL;
UBYTE GTIA_M3PL;
UBYTE GTIA_P0PL;
UBYTE GTIA_P1PL;
UBYTE GTIA_P2PL;
UBYTE GTIA_P3PL;
UBYTE GTIA_HPOSP0;
UBYTE GTIA_HPOSP1;
UBYTE GTIA_HPOSP2;
UBYTE GTIA_HPOSP3;
UBYTE GTIA_HPOSM0;
UBYTE GTIA_HPOSM1;
UBYTE GTIA_HPOSM2;
UBYTE GTIA_HPOSM3;
UBYTE GTIA_SIZEP0;
UBYTE GTIA_SIZEP1;
UBYTE GTIA_SIZEP2;
UBYTE GTIA_SIZEP3;
UBYTE GTIA_SIZEM;
UBYTE GTIA_GRAFP0;
UBYTE GTIA_GRAFP1;
UBYTE GTIA_GRAFP2;
UBYTE GTIA_GRAFP3;
UBYTE GTIA_GRAFM;
UBYTE GTIA_COLPM0;
UBYTE GTIA_COLPM1;
UBYTE GTIA_COLPM2;
UBYTE GTIA_COLPM3;
UBYTE GTIA_COLPF0;
UBYTE GTIA_COLPF1;
UBYTE GTIA_COLPF2;
UBYTE GTIA_COLPF3;
UBYTE GTIA_COLBK;
UBYTE GTIA_PRIOR;
UBYTE GTIA_VDELAY;
UBYTE GTIA_GRACTL;
/* Internal GTIA state ----------------------------------------------------- */
int GTIA_speaker;
int GTIA_consol_index = 0;
UBYTE GTIA_consol_table[3];
UBYTE consol_mask;
UBYTE GTIA_TRIG[4];
UBYTE GTIA_TRIG_latch[4];
#if defined(BASIC) || defined(CURSES_BASIC)
static UBYTE PF0PM = 0;
static UBYTE PF1PM = 0;
static UBYTE PF2PM = 0;
static UBYTE PF3PM = 0;
#define GTIA_collisions_mask_missile_playfield 0
#define GTIA_collisions_mask_player_playfield 0
#define GTIA_collisions_mask_missile_player 0
#define GTIA_collisions_mask_player_player 0
#else /* defined(BASIC) || defined(CURSES_BASIC) */
void set_prior(UBYTE byte); /* in antic.c */
/* Player/Missile stuff ---------------------------------------------------- */
/* change to 0x00 to disable collisions */
UBYTE GTIA_collisions_mask_missile_playfield = 0x0f;
UBYTE GTIA_collisions_mask_player_playfield = 0x0f;
UBYTE GTIA_collisions_mask_missile_player = 0x0f;
UBYTE GTIA_collisions_mask_player_player = 0x0f;
#ifdef NEW_CYCLE_EXACT
/* temporary collision registers for the current scanline only */
UBYTE P1PL_T;
UBYTE P2PL_T;
UBYTE P3PL_T;
UBYTE M0PL_T;
UBYTE M1PL_T;
UBYTE M2PL_T;
UBYTE M3PL_T;
/* If partial collisions have been generated during a scanline, this
* is the position of the up-to-date collision point , otherwise it is 0
*/
int collision_curpos;
/* if hitclr has been written to during a scanline, this is the position
* within pm_scaline at which it was written to, and collisions should
* only be generated from this point on, otherwise it is 0
*/
int hitclr_pos;
#else
#define P1PL_T P1PL
#define P2PL_T P2PL
#define P3PL_T P3PL
#define M0PL_T M0PL
#define M1PL_T M1PL
#define M2PL_T M2PL
#define M3PL_T M3PL
#endif /* NEW_CYCLE_EXACT */
static UBYTE *hposp_ptr[4];
static UBYTE *hposm_ptr[4];
static ULONG hposp_mask[4];
static ULONG grafp_lookup[4][256];
static ULONG *grafp_ptr[4];
static int global_sizem[4];
static const int PM_Width[4] = {1, 2, 1, 4};
/* Meaning of bits in GTIA_pm_scanline:
bit 0 - Player 0
bit 1 - Player 1
bit 2 - Player 2
bit 3 - Player 3
bit 4 - Missile 0
bit 5 - Missile 1
bit 6 - Missile 2
bit 7 - Missile 3
*/
UBYTE GTIA_pm_scanline[Screen_WIDTH / 2 + 8]; /* there's a byte for every *pair* of pixels */
int GTIA_pm_dirty = TRUE;
#define C_PM0 0x01
#define C_PM1 0x02
#define C_PM01 0x03
#define C_PM2 0x04
#define C_PM3 0x05
#define C_PM23 0x06
#define C_PM023 0x07
#define C_PM123 0x08
#define C_PM0123 0x09
#define C_PM25 0x0a
#define C_PM35 0x0b
#define C_PM235 0x0c
#define C_COLLS 0x0d
#define C_BAK 0x00
#define C_HI2 0x20
#define C_HI3 0x30
#define C_PF0 0x40
#define C_PF1 0x50
#define C_PF2 0x60
#define C_PF3 0x70
#define PF0PM (*(UBYTE *) &ANTIC_cl[C_PF0 | C_COLLS])
#define PF1PM (*(UBYTE *) &ANTIC_cl[C_PF1 | C_COLLS])
#define PF2PM (*(UBYTE *) &ANTIC_cl[C_PF2 | C_COLLS])
#define PF3PM (*(UBYTE *) &ANTIC_cl[C_PF3 | C_COLLS])
/* Colours ----------------------------------------------------------------- */
#ifdef USE_COLOUR_TRANSLATION_TABLE
UWORD colour_translation_table[256];
#endif /* USE_COLOUR_TRANSLATION_TABLE */
static void setup_gtia9_11(void) {
int i;
#ifdef USE_COLOUR_TRANSLATION_TABLE
UWORD temp;
temp = colour_translation_table[GTIA_COLBK & 0xf0];
ANTIC_lookup_gtia11[0] = ((ULONG) temp << 16) + temp;
for (i = 1; i < 16; i++) {
temp = colour_translation_table[GTIA_COLBK | i];
ANTIC_lookup_gtia9[i] = ((ULONG) temp << 16) + temp;
temp = colour_translation_table[GTIA_COLBK | (i << 4)];
ANTIC_lookup_gtia11[i] = ((ULONG) temp << 16) + temp;
}
#else
ULONG count9 = 0;
ULONG count11 = 0;
ANTIC_lookup_gtia11[0] = ANTIC_lookup_gtia9[0] & 0xf0f0f0f0;
for (i = 1; i < 16; i++) {
ANTIC_lookup_gtia9[i] = ANTIC_lookup_gtia9[0] | (count9 += 0x01010101);
ANTIC_lookup_gtia11[i] = ANTIC_lookup_gtia9[0] | (count11 += 0x10101010);
}
#endif
}
#endif /* defined(BASIC) || defined(CURSES_BASIC) */
/* Initialization ---------------------------------------------------------- */
int GTIA_Initialise(int *argc, char *argv[])
{
#if !defined(BASIC) && !defined(CURSES_BASIC)
int i;
for (i = 0; i < 256; i++) {
int tmp = i + 0x100;
ULONG grafp1 = 0;
ULONG grafp2 = 0;
ULONG grafp4 = 0;
do {
grafp1 <<= 1;
grafp2 <<= 2;
grafp4 <<= 4;
if (tmp & 1) {
grafp1++;
grafp2 += 3;
grafp4 += 15;
}
tmp >>= 1;
} while (tmp != 1);
grafp_lookup[2][i] = grafp_lookup[0][i] = grafp1;
grafp_lookup[1][i] = grafp2;
grafp_lookup[3][i] = grafp4;
}
memset(ANTIC_cl, GTIA_COLOUR_BLACK, sizeof(ANTIC_cl));
for (i = 0; i < 32; i++)
GTIA_PutByte((UWORD) i, 0);
#endif /* !defined(BASIC) && !defined(CURSES_BASIC) */
return TRUE;
}
#ifdef NEW_CYCLE_EXACT
/* generate updated PxPL and MxPL for part of a scanline */
/* slow, but should be called rarely */
static void generate_partial_pmpl_colls(int l, int r)
{
int i;
if (r < 0 || l >= (int) sizeof(GTIA_pm_scanline) / (int) sizeof(GTIA_pm_scanline[0]))
return;
if (r >= (int) sizeof(GTIA_pm_scanline) / (int) sizeof(GTIA_pm_scanline[0])) {
r = (int) sizeof(GTIA_pm_scanline) / (int) sizeof(GTIA_pm_scanline[0]);
}
if (l < 0)
l = 0;
for (i = l; i <= r; i++) {
UBYTE p = GTIA_pm_scanline[i];
/* It is possible that some bits are set in PxPL/MxPL here, which would
* not otherwise be set ever in GTIA_NewPmScanline. This is because the
* player collisions are always generated in order in GTIA_NewPmScanline.
* However this does not cause any problem because we never use those bits
* of PxPL/MxPL in the collision reading code.
*/
GTIA_P1PL |= (p & (1 << 1)) ? p : 0;
GTIA_P2PL |= (p & (1 << 2)) ? p : 0;
GTIA_P3PL |= (p & (1 << 3)) ? p : 0;
GTIA_M0PL |= (p & (0x10 << 0)) ? p : 0;
GTIA_M1PL |= (p & (0x10 << 1)) ? p : 0;
GTIA_M2PL |= (p & (0x10 << 2)) ? p : 0;
GTIA_M3PL |= (p & (0x10 << 3)) ? p : 0;
}
}
/* update pm->pl collisions for a partial scanline */
static void update_partial_pmpl_colls(void)
{
int l = collision_curpos;
int r = ANTIC_XPOS * 2 - 37;
generate_partial_pmpl_colls(l, r);
collision_curpos = r;
}
/* update pm-> pl collisions at the end of a scanline */
void GTIA_UpdatePmplColls(void)
{
if (hitclr_pos != 0){
generate_partial_pmpl_colls(hitclr_pos,
sizeof(GTIA_pm_scanline) / sizeof(GTIA_pm_scanline[0]) - 1);
/* If hitclr was written to, then only part of GTIA_pm_scanline should be used
* for collisions */
}
else {
/* otherwise the whole of pm_scaline can be used for collisions. This will
* update the collision registers based on the generated collisions for the
* current line */
GTIA_P1PL |= P1PL_T;
GTIA_P2PL |= P2PL_T;
GTIA_P3PL |= P3PL_T;
GTIA_M0PL |= M0PL_T;
GTIA_M1PL |= M1PL_T;
GTIA_M2PL |= M2PL_T;
GTIA_M3PL |= M3PL_T;
}
collision_curpos = 0;
hitclr_pos = 0;
}
#else
#define update_partial_pmpl_colls()
#endif /* NEW_CYCLE_EXACT */
/* Prepare PMG scanline ---------------------------------------------------- */
#if !defined(BASIC) && !defined(CURSES_BASIC)
void GTIA_NewPmScanline(void)
{
#ifdef NEW_CYCLE_EXACT
/* reset temporary pm->pl collisions */
P1PL_T = P2PL_T = P3PL_T = 0;
M0PL_T = M1PL_T = M2PL_T = M3PL_T = 0;
#endif /* NEW_CYCLE_EXACT */
/* Clear if necessary */
if (GTIA_pm_dirty) {
memset(GTIA_pm_scanline, 0, Screen_WIDTH / 2);
GTIA_pm_dirty = FALSE;
}
/* Draw Players */
#define DO_PLAYER(n) if (GTIA_GRAFP##n) { \
ULONG grafp = grafp_ptr[n][GTIA_GRAFP##n] & hposp_mask[n]; \
if (grafp) { \
UBYTE *ptr = hposp_ptr[n]; \
GTIA_pm_dirty = TRUE; \
do { \
if (grafp & 1) \
P##n##PL_T |= *ptr |= 1 << n; \
ptr++; \
grafp >>= 1; \
} while (grafp); \
} \
}
/* optimized DO_PLAYER(0): GTIA_pm_scanline is clear and P0PL is unused */
if (GTIA_GRAFP0) {
ULONG grafp = grafp_ptr[0][GTIA_GRAFP0] & hposp_mask[0];
if (grafp) {
UBYTE *ptr = hposp_ptr[0];
GTIA_pm_dirty = TRUE;
do {
if (grafp & 1)
*ptr = 1;
ptr++;
grafp >>= 1;
} while (grafp);
}
}
DO_PLAYER(1)
DO_PLAYER(2)
DO_PLAYER(3)
/* Draw Missiles */
#define DO_MISSILE(n,p,m,r,l) if (GTIA_GRAFM & m) { \
int j = global_sizem[n]; \
UBYTE *ptr = hposm_ptr[n]; \
if (GTIA_GRAFM & r) { \
if (GTIA_GRAFM & l) \
j <<= 1; \
} \
else \
ptr += j; \
if (ptr < GTIA_pm_scanline + 2) { \
j += ptr - GTIA_pm_scanline - 2; \
ptr = GTIA_pm_scanline + 2; \
} \
else if (ptr + j > GTIA_pm_scanline + Screen_WIDTH / 2 - 2) \
j = GTIA_pm_scanline + Screen_WIDTH / 2 - 2 - ptr; \
if (j > 0) \
do \
M##n##PL_T |= *ptr++ |= p; \
while (--j); \
}
if (GTIA_GRAFM) {
GTIA_pm_dirty = TRUE;
DO_MISSILE(3, 0x80, 0xc0, 0x80, 0x40)
DO_MISSILE(2, 0x40, 0x30, 0x20, 0x10)
DO_MISSILE(1, 0x20, 0x0c, 0x08, 0x04)
DO_MISSILE(0, 0x10, 0x03, 0x02, 0x01)
}
}
#endif /* !defined(BASIC) && !defined(CURSES_BASIC) */
/* GTIA registers ---------------------------------------------------------- */
void GTIA_Frame(void)
{
#ifdef BASIC
int consol = 0xf;
#else
int consol = INPUT_key_consol | 0x08;
#endif
GTIA_consol_table[0] = consol;
GTIA_consol_table[1] = GTIA_consol_table[2] &= consol;
if (GTIA_GRACTL & 4) {
GTIA_TRIG_latch[0] &= GTIA_TRIG[0];
GTIA_TRIG_latch[1] &= GTIA_TRIG[1];
GTIA_TRIG_latch[2] &= GTIA_TRIG[2];
GTIA_TRIG_latch[3] &= GTIA_TRIG[3];
}
}
UBYTE GTIA_GetByte(UWORD addr)
{
switch (addr & 0x1f) {
case GTIA_OFFSET_M0PF:
return (((PF0PM & 0x10) >> 4)
+ ((PF1PM & 0x10) >> 3)
+ ((PF2PM & 0x10) >> 2)
+ ((PF3PM & 0x10) >> 1)) & GTIA_collisions_mask_missile_playfield;
case GTIA_OFFSET_M1PF:
return (((PF0PM & 0x20) >> 5)
+ ((PF1PM & 0x20) >> 4)
+ ((PF2PM & 0x20) >> 3)
+ ((PF3PM & 0x20) >> 2)) & GTIA_collisions_mask_missile_playfield;
case GTIA_OFFSET_M2PF:
return (((PF0PM & 0x40) >> 6)
+ ((PF1PM & 0x40) >> 5)
+ ((PF2PM & 0x40) >> 4)
+ ((PF3PM & 0x40) >> 3)) & GTIA_collisions_mask_missile_playfield;
case GTIA_OFFSET_M3PF:
return (((PF0PM & 0x80) >> 7)
+ ((PF1PM & 0x80) >> 6)
+ ((PF2PM & 0x80) >> 5)
+ ((PF3PM & 0x80) >> 4)) & GTIA_collisions_mask_missile_playfield;
case GTIA_OFFSET_P0PF:
return ((PF0PM & 0x01)
+ ((PF1PM & 0x01) << 1)
+ ((PF2PM & 0x01) << 2)
+ ((PF3PM & 0x01) << 3)) & GTIA_collisions_mask_player_playfield;
case GTIA_OFFSET_P1PF:
return (((PF0PM & 0x02) >> 1)
+ (PF1PM & 0x02)
+ ((PF2PM & 0x02) << 1)
+ ((PF3PM & 0x02) << 2)) & GTIA_collisions_mask_player_playfield;
case GTIA_OFFSET_P2PF:
return (((PF0PM & 0x04) >> 2)
+ ((PF1PM & 0x04) >> 1)
+ (PF2PM & 0x04)
+ ((PF3PM & 0x04) << 1)) & GTIA_collisions_mask_player_playfield;
case GTIA_OFFSET_P3PF:
return (((PF0PM & 0x08) >> 3)
+ ((PF1PM & 0x08) >> 2)
+ ((PF2PM & 0x08) >> 1)
+ (PF3PM & 0x08)) & GTIA_collisions_mask_player_playfield;
case GTIA_OFFSET_M0PL:
update_partial_pmpl_colls();
return GTIA_M0PL & GTIA_collisions_mask_missile_player;
case GTIA_OFFSET_M1PL:
update_partial_pmpl_colls();
return GTIA_M1PL & GTIA_collisions_mask_missile_player;
case GTIA_OFFSET_M2PL:
update_partial_pmpl_colls();
return GTIA_M2PL & GTIA_collisions_mask_missile_player;
case GTIA_OFFSET_M3PL:
update_partial_pmpl_colls();
return GTIA_M3PL & GTIA_collisions_mask_missile_player;
case GTIA_OFFSET_P0PL:
update_partial_pmpl_colls();
return (((GTIA_P1PL & 0x01) << 1) /* mask in player 1 */
+ ((GTIA_P2PL & 0x01) << 2) /* mask in player 2 */
+ ((GTIA_P3PL & 0x01) << 3)) /* mask in player 3 */
& GTIA_collisions_mask_player_player;
case GTIA_OFFSET_P1PL:
update_partial_pmpl_colls();
return ((GTIA_P1PL & 0x01) /* mask in player 0 */
+ ((GTIA_P2PL & 0x02) << 1) /* mask in player 2 */
+ ((GTIA_P3PL & 0x02) << 2)) /* mask in player 3 */
& GTIA_collisions_mask_player_player;
case GTIA_OFFSET_P2PL:
update_partial_pmpl_colls();
return ((GTIA_P2PL & 0x03) /* mask in player 0 and 1 */
+ ((GTIA_P3PL & 0x04) << 1)) /* mask in player 3 */
& GTIA_collisions_mask_player_player;
case GTIA_OFFSET_P3PL:
update_partial_pmpl_colls();
return (GTIA_P3PL & 0x07) /* mask in player 0,1, and 2 */
& GTIA_collisions_mask_player_player;
case GTIA_OFFSET_TRIG0:
return GTIA_TRIG[0] & GTIA_TRIG_latch[0];
case GTIA_OFFSET_TRIG1:
return GTIA_TRIG[1] & GTIA_TRIG_latch[1];
case GTIA_OFFSET_TRIG2:
return GTIA_TRIG[2] & GTIA_TRIG_latch[2];
case GTIA_OFFSET_TRIG3:
return GTIA_TRIG[3] & GTIA_TRIG_latch[3];
case GTIA_OFFSET_PAL:
return (Atari800_tv_mode == Atari800_TV_PAL) ? 0x01 : 0x0f;
case GTIA_OFFSET_CONSOL:
{
UBYTE byte = GTIA_consol_table[GTIA_consol_index] & consol_mask;
if (GTIA_consol_index > 0) {
GTIA_consol_index--;
if (GTIA_consol_index == 0 && CASSETTE_hold_start) {
/* press Space after Start to start cassette boot */
CASSETTE_press_space = 1;
CASSETTE_hold_start = CASSETTE_hold_start_on_reboot;
}
}
return byte;
}
default:
break;
}
return 0xf;
}
void GTIA_PutByte(UWORD addr, UBYTE byte)
{
#if !defined(BASIC) && !defined(CURSES_BASIC)
UWORD cword;
UWORD cword2;
#ifdef NEW_CYCLE_EXACT
int x; /* the cycle-exact update position in GTIA_pm_scanline */
if (ANTIC_DRAWING_SCREEN) {
if ((addr & 0x1f) != GTIA_PRIOR) {
ANTIC_UpdateScanline();
} else {
ANTIC_UpdateScanlinePrior(byte);
}
}
#define UPDATE_PM_CYCLE_EXACT if(ANTIC_DRAWING_SCREEN) GTIA_NewPmScanline();
#else
#define UPDATE_PM_CYCLE_EXACT
#endif
#endif /* !defined(BASIC) && !defined(CURSES_BASIC) */
switch (addr & 0x1f) {
case GTIA_OFFSET_CONSOL:
GTIA_speaker = !(byte & 0x08);
#ifdef CONSOLE_SOUND
POKEYSND_UpdateConsol(1);
#endif
consol_mask = (~byte) & 0x0f;
break;
#if defined(BASIC) || defined(CURSES_BASIC)
/* We use these for Antic modes 6, 7 on Curses */
case GTIA_OFFSET_COLPF0:
GTIA_COLPF0 = byte;
break;
case GTIA_OFFSET_COLPF1:
GTIA_COLPF1 = byte;
break;
case GTIA_OFFSET_COLPF2:
GTIA_COLPF2 = byte;
break;
case GTIA_OFFSET_COLPF3:
GTIA_COLPF3 = byte;
break;
#else
#ifdef USE_COLOUR_TRANSLATION_TABLE
case GTIA_OFFSET_COLBK:
GTIA_COLBK = byte &= 0xfe;
ANTIC_cl[C_BAK] = cword = colour_translation_table[byte];
if (cword != (UWORD) (ANTIC_lookup_gtia9[0]) ) {
ANTIC_lookup_gtia9[0] = cword + (cword << 16);
if (GTIA_PRIOR & 0x40)
setup_gtia9_11();
}
break;
case GTIA_OFFSET_COLPF0:
GTIA_COLPF0 = byte &= 0xfe;
ANTIC_cl[C_PF0] = cword = GTIA_colour_translation_table[byte];
if ((GTIA_PRIOR & 1) == 0) {
ANTIC_cl[C_PF0 | C_PM23] = ANTIC_cl[C_PF0 | C_PM3] = ANTIC_cl[C_PF0 | C_PM2] = cword;
if ((GTIA_PRIOR & 3) == 0) {
if (GTIA_PRIOR & 0xf) {
ANTIC_cl[C_PF0 | C_PM01] = ANTIC_cl[C_PF0 | C_PM1] = ANTIC_cl[C_PF0 | C_PM0] = cword;
if ((GTIA_PRIOR & 0xf) == 0xc)
ANTIC_cl[C_PF0 | C_PM0123] = ANTIC_cl[C_PF0 | C_PM123] = ANTIC_cl[C_PF0 | C_PM023] = cword;
}
else {
ANTIC_cl[C_PF0 | C_PM0] = colour_translation_table[byte | GTIA_COLPM0];
ANTIC_cl[C_PF0 | C_PM1] = colour_translation_table[byte | GTIA_COLPM1];
ANTIC_cl[C_PF0 | C_PM01] = colour_translation_table[byte | GTIA_COLPM0 | GTIA_COLPM1];
}
}
if ((GTIA_PRIOR & 0xf) >= 0xa)
ANTIC_cl[C_PF0 | C_PM25] = cword;
}
break;
case GTIA_OFFSET_COLPF1:
GTIA_COLPF1 = byte &= 0xfe;
ANTIC_cl[C_PF1] = cword = GTIA_colour_translation_table[byte];
if ((GTIA_PRIOR & 1) == 0) {
ANTIC_cl[C_PF1 | C_PM23] = ANTIC_cl[C_PF1 | C_PM3] = ANTIC_cl[C_PF1 | C_PM2] = cword;
if ((GTIA_PRIOR & 3) == 0) {
if (GTIA_PRIOR & 0xf) {
ANTIC_cl[C_PF1 | C_PM01] = ANTIC_cl[C_PF1 | C_PM1] = ANTIC_cl[C_PF1 | C_PM0] = cword;
if ((GTIA_PRIOR & 0xf) == 0xc)
ANTIC_cl[C_PF1 | C_PM0123] = ANTIC_cl[C_PF1 | C_PM123] = ANTIC_cl[C_PF1 | C_PM023] = cword;
}
else {
ANTIC_cl[C_PF1 | C_PM0] = colour_translation_table[byte | GTIA_COLPM0];
ANTIC_cl[C_PF1 | C_PM1] = colour_translation_table[byte | GTIA_COLPM1];
ANTIC_cl[C_PF1 | C_PM01] = colour_translation_table[byte | GTIA_COLPM0 | GTIA_COLPM1];
}
}
}
{
UBYTE byte2 = (GTIA_COLPF2 & 0xf0) + (byte & 0xf);
ANTIC_cl[C_HI2] = cword = colour_translation_table[byte2];
ANTIC_cl[C_HI3] = colour_translation_table[(GTIA_COLPF3 & 0xf0) | (byte & 0xf)];
if (GTIA_PRIOR & 4)
ANTIC_cl[C_HI2 | C_PM01] = ANTIC_cl[C_HI2 | C_PM1] = ANTIC_cl[C_HI2 | C_PM0] = cword;
if ((GTIA_PRIOR & 9) == 0) {
if (GTIA_PRIOR & 0xf)
ANTIC_cl[C_HI2 | C_PM23] = ANTIC_cl[C_HI2 | C_PM3] = ANTIC_cl[C_HI2 | C_PM2] = cword;
else {
ANTIC_cl[C_HI2 | C_PM2] = colour_translation_table[byte2 | (GTIA_COLPM2 & 0xf0)];
ANTIC_cl[C_HI2 | C_PM3] = colour_translation_table[byte2 | (GTIA_COLPM3 & 0xf0)];
ANTIC_cl[C_HI2 | C_PM23] = colour_translation_table[byte2 | ((GTIA_COLPM2 | GTIA_COLPM3) & 0xf0)];
}
}
}
break;
case GTIA_OFFSET_COLPF2:
GTIA_COLPF2 = byte &= 0xfe;
ANTIC_cl[C_PF2] = cword = GTIA_colour_translation_table[byte];
{
UBYTE byte2 = (byte & 0xf0) + (GTIA_COLPF1 & 0xf);
ANTIC_cl[C_HI2] = cword2 = colour_translation_table[byte2];
if (GTIA_PRIOR & 4) {
ANTIC_cl[C_PF2 | C_PM01] = ANTIC_cl[C_PF2 | C_PM1] = ANTIC_cl[C_PF2 | C_PM0] = cword;
ANTIC_cl[C_HI2 | C_PM01] = ANTIC_cl[C_HI2 | C_PM1] = ANTIC_cl[C_HI2 | C_PM0] = cword2;
}
if ((GTIA_PRIOR & 9) == 0) {
if (GTIA_PRIOR & 0xf) {
ANTIC_cl[C_PF2 | C_PM23] = ANTIC_cl[C_PF2 | C_PM3] = ANTIC_cl[C_PF2 | C_PM2] = cword;
ANTIC_cl[C_HI2 | C_PM23] = ANTIC_cl[C_HI2 | C_PM3] = ANTIC_cl[C_HI2 | C_PM2] = cword2;
}
else {
ANTIC_cl[C_PF2 | C_PM2] = colour_translation_table[byte | GTIA_COLPM2];
ANTIC_cl[C_PF2 | C_PM3] = colour_translation_table[byte | GTIA_COLPM3];
ANTIC_cl[C_PF2 | C_PM23] = colour_translation_table[byte | GTIA_COLPM2 | GTIA_COLPM3];
ANTIC_cl[C_HI2 | C_PM2] = colour_translation_table[byte2 | (GTIA_COLPM2 & 0xf0)];
ANTIC_cl[C_HI2 | C_PM3] = colour_translation_table[byte2 | (GTIA_COLPM3 & 0xf0)];
ANTIC_cl[C_HI2 | C_PM23] = colour_translation_table[byte2 | ((GTIA_COLPM2 | GTIA_COLPM3) & 0xf0)];
}
}
}
break;
case GTIA_OFFSET_COLPF3:
GTIA_COLPF3 = byte &= 0xfe;
ANTIC_cl[C_PF3] = cword = colour_translation_table[byte];
ANTIC_cl[C_HI3] = cword2 = colour_translation_table[(byte & 0xf0) | (GTIA_COLPF1 & 0xf)];
if (GTIA_PRIOR & 4)
ANTIC_cl[C_PF3 | C_PM01] = ANTIC_cl[C_PF3 | C_PM1] = ANTIC_cl[C_PF3 | C_PM0] = cword;
if ((GTIA_PRIOR & 9) == 0) {
if (GTIA_PRIOR & 0xf)
ANTIC_cl[C_PF3 | C_PM23] = ANTIC_cl[C_PF3 | C_PM3] = ANTIC_cl[C_PF3 | C_PM2] = cword;
else {
ANTIC_cl[C_PF3 | C_PM25] = ANTIC_cl[C_PF2 | C_PM25] = ANTIC_cl[C_PM25] = ANTIC_cl[C_PF3 | C_PM2] = colour_translation_table[byte | GTIA_COLPM2];
ANTIC_cl[C_PF3 | C_PM35] = ANTIC_cl[C_PF2 | C_PM35] = ANTIC_cl[C_PM35] = ANTIC_cl[C_PF3 | C_PM3] = colour_translation_table[byte | GTIA_COLPM3];
ANTIC_cl[C_PF3 | C_PM235] = ANTIC_cl[C_PF2 | C_PM235] = ANTIC_cl[C_PM235] = ANTIC_cl[C_PF3 | C_PM23] = colour_translation_table[byte | GTIA_COLPM2 | GTIA_COLPM3];
ANTIC_cl[C_PF0 | C_PM235] = ANTIC_cl[C_PF0 | C_PM35] = ANTIC_cl[C_PF0 | C_PM25] =
ANTIC_cl[C_PF1 | C_PM235] = ANTIC_cl[C_PF1 | C_PM35] = ANTIC_cl[C_PF1 | C_PM25] = cword;
}
}
break;
case GTIA_OFFSET_COLPM0:
GTIA_COLPM0 = byte &= 0xfe;
ANTIC_cl[C_PM023] = ANTIC_cl[C_PM0] = cword = colour_translation_table[byte];
{
UBYTE byte2 = byte | GTIA_COLPM1;
ANTIC_cl[C_PM0123] = ANTIC_cl[C_PM01] = cword2 = colour_translation_table[byte2];
if ((GTIA_PRIOR & 4) == 0) {
ANTIC_cl[C_PF2 | C_PM0] = ANTIC_cl[C_PF3 | C_PM0] = cword;
ANTIC_cl[C_PF2 | C_PM01] = ANTIC_cl[C_PF3 | C_PM01] = cword2;
ANTIC_cl[C_HI2 | C_PM0] = colour_translation_table[(byte & 0xf0) | (GTIA_COLPF1 & 0xf)];
ANTIC_cl[C_HI2 | C_PM01] = colour_translation_table[(byte2 & 0xf0) | (GTIA_COLPF1 & 0xf)];
if ((GTIA_PRIOR & 0xc) == 0) {
if (GTIA_PRIOR & 3) {
ANTIC_cl[C_PF0 | C_PM0] = ANTIC_cl[C_PF1 | C_PM0] = cword;
ANTIC_cl[C_PF0 | C_PM01] = ANTIC_cl[C_PF1 | C_PM01] = cword2;
}
else {
ANTIC_cl[C_PF0 | C_PM0] = colour_translation_table[byte | GTIA_COLPF0];
ANTIC_cl[C_PF1 | C_PM0] = colour_translation_table[byte | GTIA_COLPF1];
ANTIC_cl[C_PF0 | C_PM01] = colour_translation_table[byte2 | GTIA_COLPF0];
ANTIC_cl[C_PF1 | C_PM01] = colour_translation_table[byte2 | GTIA_COLPF1];
}
}
}
}
break;
case GTIA_OFFSET_COLPM1:
GTIA_COLPM1 = byte &= 0xfe;
ANTIC_cl[C_PM123] = ANTIC_cl[C_PM1] = cword = colour_translation_table[byte];
{
UBYTE byte2 = byte | GTIA_COLPM0;
ANTIC_cl[C_PM0123] = ANTIC_cl[C_PM01] = cword2 = colour_translation_table[byte2];
if ((GTIA_PRIOR & 4) == 0) {
ANTIC_cl[C_PF2 | C_PM1] = ANTIC_cl[C_PF3 | C_PM1] = cword;
ANTIC_cl[C_PF2 | C_PM01] = ANTIC_cl[C_PF3 | C_PM01] = cword2;
ANTIC_cl[C_HI2 | C_PM1] = colour_translation_table[(byte & 0xf0) | (GTIA_COLPF1 & 0xf)];
ANTIC_cl[C_HI2 | C_PM01] = colour_translation_table[(byte2 & 0xf0) | (GTIA_COLPF1 & 0xf)];
if ((GTIA_PRIOR & 0xc) == 0) {
if (GTIA_PRIOR & 3) {
ANTIC_cl[C_PF0 | C_PM1] = ANTIC_cl[C_PF1 | C_PM1] = cword;
ANTIC_cl[C_PF0 | C_PM01] = ANTIC_cl[C_PF1 | C_PM01] = cword2;
}
else {
ANTIC_cl[C_PF0 | C_PM1] = colour_translation_table[byte | GTIA_COLPF0];
ANTIC_cl[C_PF1 | C_PM1] = colour_translation_table[byte | GTIA_COLPF1];
ANTIC_cl[C_PF0 | C_PM01] = colour_translation_table[byte2 | GTIA_COLPF0];
ANTIC_cl[C_PF1 | C_PM01] = colour_translation_table[byte2 | GTIA_COLPF1];
}
}
}
}
break;
case GTIA_OFFSET_COLPM2:
GTIA_COLPM2 = byte &= 0xfe;
ANTIC_cl[C_PM2] = cword = colour_translation_table[byte];
{
UBYTE byte2 = byte | GTIA_COLPM3;
ANTIC_cl[C_PM23] = cword2 = colour_translation_table[byte2];
if (GTIA_PRIOR & 1) {
ANTIC_cl[C_PF0 | C_PM2] = ANTIC_cl[C_PF1 | C_PM2] = cword;
ANTIC_cl[C_PF0 | C_PM23] = ANTIC_cl[C_PF1 | C_PM23] = cword2;
}
if ((GTIA_PRIOR & 6) == 0) {
if (GTIA_PRIOR & 9) {
ANTIC_cl[C_PF2 | C_PM2] = ANTIC_cl[C_PF3 | C_PM2] = cword;
ANTIC_cl[C_PF2 | C_PM23] = ANTIC_cl[C_PF3 | C_PM23] = cword2;
ANTIC_cl[C_HI2 | C_PM2] = colour_translation_table[(byte & 0xf0) | (GTIA_COLPF1 & 0xf)];
ANTIC_cl[C_HI2 | C_PM23] = colour_translation_table[(byte2 & 0xf0) | (GTIA_COLPF1 & 0xf)];
}
else {
ANTIC_cl[C_PF2 | C_PM2] = colour_translation_table[byte | GTIA_COLPF2];
ANTIC_cl[C_PF3 | C_PM25] = ANTIC_cl[C_PF2 | C_PM25] = ANTIC_cl[C_PM25] = ANTIC_cl[C_PF3 | C_PM2] = colour_translation_table[byte | GTIA_COLPF3];
ANTIC_cl[C_PF2 | C_PM23] = colour_translation_table[byte2 | GTIA_COLPF2];
ANTIC_cl[C_PF3 | C_PM235] = ANTIC_cl[C_PF2 | C_PM235] = ANTIC_cl[C_PM235] = ANTIC_cl[C_PF3 | C_PM23] = colour_translation_table[byte2 | GTIA_COLPF3];
ANTIC_cl[C_HI2 | C_PM2] = colour_translation_table[((byte | GTIA_COLPF2) & 0xf0) | (GTIA_COLPF1 & 0xf)];
ANTIC_cl[C_HI2 | C_PM25] = colour_translation_table[((byte | GTIA_COLPF3) & 0xf0) | (GTIA_COLPF1 & 0xf)];
ANTIC_cl[C_HI2 | C_PM23] = colour_translation_table[((byte2 | GTIA_COLPF2) & 0xf0) | (GTIA_COLPF1 & 0xf)];
ANTIC_cl[C_HI2 | C_PM235] = colour_translation_table[((byte2 | GTIA_COLPF3) & 0xf0) | (GTIA_COLPF1 & 0xf)];
}
}
}
break;
case GTIA_OFFSET_COLPM3:
GTIA_COLPM3 = byte &= 0xfe;
ANTIC_cl[C_PM3] = cword = colour_translation_table[byte];
{
UBYTE byte2 = byte | GTIA_COLPM2;
ANTIC_cl[C_PM23] = cword2 = colour_translation_table[byte2];
if (GTIA_PRIOR & 1) {
ANTIC_cl[C_PF0 | C_PM3] = ANTIC_cl[C_PF1 | C_PM3] = cword;
ANTIC_cl[C_PF0 | C_PM23] = ANTIC_cl[C_PF1 | C_PM23] = cword2;
}
if ((GTIA_PRIOR & 6) == 0) {
if (GTIA_PRIOR & 9) {
ANTIC_cl[C_PF2 | C_PM3] = ANTIC_cl[C_PF3 | C_PM3] = cword;
ANTIC_cl[C_PF2 | C_PM23] = ANTIC_cl[C_PF3 | C_PM23] = cword2;
}
else {
ANTIC_cl[C_PF2 | C_PM3] = colour_translation_table[byte | GTIA_COLPF2];
ANTIC_cl[C_PF3 | C_PM35] = ANTIC_cl[C_PF2 | C_PM35] = ANTIC_cl[C_PM35] = ANTIC_cl[C_PF3 | C_PM3] = colour_translation_table[byte | GTIA_COLPF3];
ANTIC_cl[C_PF2 | C_PM23] = colour_translation_table[byte2 | GTIA_COLPF2];
ANTIC_cl[C_PF3 | C_PM235] = ANTIC_cl[C_PF2 | C_PM235] = ANTIC_cl[C_PM235] = ANTIC_cl[C_PF3 | C_PM23] = colour_translation_table[byte2 | GTIA_COLPF3];
ANTIC_cl[C_HI2 | C_PM3] = colour_translation_table[((byte | GTIA_COLPF2) & 0xf0) | (GTIA_COLPF1 & 0xf)];
ANTIC_cl[C_HI2 | C_PM23] = colour_translation_table[((byte2 | GTIA_COLPF2) & 0xf0) | (GTIA_COLPF1 & 0xf)];
}
}
}
break;
#else /* USE_COLOUR_TRANSLATION_TABLE */
case GTIA_OFFSET_COLBK:
GTIA_COLBK = byte &= 0xfe;
GTIA_COLOUR_TO_WORD(cword,byte);
ANTIC_cl[C_BAK] = cword;
if (cword != (UWORD) (ANTIC_lookup_gtia9[0]) ) {
ANTIC_lookup_gtia9[0] = cword + (cword << 16);
if (GTIA_PRIOR & 0x40)
setup_gtia9_11();
}
break;
case GTIA_OFFSET_COLPF0:
GTIA_COLPF0 = byte &= 0xfe;
GTIA_COLOUR_TO_WORD(cword,byte);
ANTIC_cl[C_PF0] = cword;
if ((GTIA_PRIOR & 1) == 0) {
ANTIC_cl[C_PF0 | C_PM23] = ANTIC_cl[C_PF0 | C_PM3] = ANTIC_cl[C_PF0 | C_PM2] = cword;
if ((GTIA_PRIOR & 3) == 0) {
if (GTIA_PRIOR & 0xf) {
ANTIC_cl[C_PF0 | C_PM01] = ANTIC_cl[C_PF0 | C_PM1] = ANTIC_cl[C_PF0 | C_PM0] = cword;
if ((GTIA_PRIOR & 0xf) == 0xc)
ANTIC_cl[C_PF0 | C_PM0123] = ANTIC_cl[C_PF0 | C_PM123] = ANTIC_cl[C_PF0 | C_PM023] = cword;
}
else
ANTIC_cl[C_PF0 | C_PM01] = (ANTIC_cl[C_PF0 | C_PM0] = cword | ANTIC_cl[C_PM0]) | (ANTIC_cl[C_PF0 | C_PM1] = cword | ANTIC_cl[C_PM1]);
}
if ((GTIA_PRIOR & 0xf) >= 0xa)
ANTIC_cl[C_PF0 | C_PM25] = cword;
}
break;
case GTIA_OFFSET_COLPF1:
GTIA_COLPF1 = byte &= 0xfe;
GTIA_COLOUR_TO_WORD(cword,byte);
ANTIC_cl[C_PF1] = cword;
if ((GTIA_PRIOR & 1) == 0) {
ANTIC_cl[C_PF1 | C_PM23] = ANTIC_cl[C_PF1 | C_PM3] = ANTIC_cl[C_PF1 | C_PM2] = cword;
if ((GTIA_PRIOR & 3) == 0) {
if (GTIA_PRIOR & 0xf) {
ANTIC_cl[C_PF1 | C_PM01] = ANTIC_cl[C_PF1 | C_PM1] = ANTIC_cl[C_PF1 | C_PM0] = cword;
if ((GTIA_PRIOR & 0xf) == 0xc)
ANTIC_cl[C_PF1 | C_PM0123] = ANTIC_cl[C_PF1 | C_PM123] = ANTIC_cl[C_PF1 | C_PM023] = cword;
}
else
ANTIC_cl[C_PF1 | C_PM01] = (ANTIC_cl[C_PF1 | C_PM0] = cword | ANTIC_cl[C_PM0]) | (ANTIC_cl[C_PF1 | C_PM1] = cword | ANTIC_cl[C_PM1]);
}
}
((UBYTE *)ANTIC_hires_lookup_l)[0x80] = ((UBYTE *)ANTIC_hires_lookup_l)[0x41] = (UBYTE)
(ANTIC_hires_lookup_l[0x60] = cword & 0xf0f);
break;
case GTIA_OFFSET_COLPF2:
GTIA_COLPF2 = byte &= 0xfe;
GTIA_COLOUR_TO_WORD(cword,byte);
ANTIC_cl[C_PF2] = cword;
if (GTIA_PRIOR & 4)
ANTIC_cl[C_PF2 | C_PM01] = ANTIC_cl[C_PF2 | C_PM1] = ANTIC_cl[C_PF2 | C_PM0] = cword;
if ((GTIA_PRIOR & 9) == 0) {
if (GTIA_PRIOR & 0xf)
ANTIC_cl[C_PF2 | C_PM23] = ANTIC_cl[C_PF2 | C_PM3] = ANTIC_cl[C_PF2 | C_PM2] = cword;
else
ANTIC_cl[C_PF2 | C_PM23] = (ANTIC_cl[C_PF2 | C_PM2] = cword | ANTIC_cl[C_PM2]) | (ANTIC_cl[C_PF2 | C_PM3] = cword | ANTIC_cl[C_PM3]);
}
break;
case GTIA_OFFSET_COLPF3:
GTIA_COLPF3 = byte &= 0xfe;
GTIA_COLOUR_TO_WORD(cword,byte);
ANTIC_cl[C_PF3] = cword;
if (GTIA_PRIOR & 4)
ANTIC_cl[C_PF3 | C_PM01] = ANTIC_cl[C_PF3 | C_PM1] = ANTIC_cl[C_PF3 | C_PM0] = cword;
if ((GTIA_PRIOR & 9) == 0) {
if (GTIA_PRIOR & 0xf)
ANTIC_cl[C_PF3 | C_PM23] = ANTIC_cl[C_PF3 | C_PM3] = ANTIC_cl[C_PF3 | C_PM2] = cword;
else {
ANTIC_cl[C_PF3 | C_PM25] = ANTIC_cl[C_PF2 | C_PM25] = ANTIC_cl[C_PM25] = ANTIC_cl[C_PF3 | C_PM2] = cword | ANTIC_cl[C_PM2];
ANTIC_cl[C_PF3 | C_PM35] = ANTIC_cl[C_PF2 | C_PM35] = ANTIC_cl[C_PM35] = ANTIC_cl[C_PF3 | C_PM3] = cword | ANTIC_cl[C_PM3];
ANTIC_cl[C_PF3 | C_PM235] = ANTIC_cl[C_PF2 | C_PM235] = ANTIC_cl[C_PM235] = ANTIC_cl[C_PF3 | C_PM23] = ANTIC_cl[C_PF3 | C_PM2] | ANTIC_cl[C_PF3 | C_PM3];
ANTIC_cl[C_PF0 | C_PM235] = ANTIC_cl[C_PF0 | C_PM35] = ANTIC_cl[C_PF0 | C_PM25] =
ANTIC_cl[C_PF1 | C_PM235] = ANTIC_cl[C_PF1 | C_PM35] = ANTIC_cl[C_PF1 | C_PM25] = cword;
}
}
break;
case GTIA_OFFSET_COLPM0:
GTIA_COLPM0 = byte &= 0xfe;
GTIA_COLOUR_TO_WORD(cword,byte);
ANTIC_cl[C_PM023] = ANTIC_cl[C_PM0] = cword;
ANTIC_cl[C_PM0123] = ANTIC_cl[C_PM01] = cword2 = cword | ANTIC_cl[C_PM1];
if ((GTIA_PRIOR & 4) == 0) {
ANTIC_cl[C_PF2 | C_PM0] = ANTIC_cl[C_PF3 | C_PM0] = cword;
ANTIC_cl[C_PF2 | C_PM01] = ANTIC_cl[C_PF3 | C_PM01] = cword2;
if ((GTIA_PRIOR & 0xc) == 0) {
if (GTIA_PRIOR & 3) {
ANTIC_cl[C_PF0 | C_PM0] = ANTIC_cl[C_PF1 | C_PM0] = cword;
ANTIC_cl[C_PF0 | C_PM01] = ANTIC_cl[C_PF1 | C_PM01] = cword2;
}
else {
ANTIC_cl[C_PF0 | C_PM0] = cword | ANTIC_cl[C_PF0];
ANTIC_cl[C_PF1 | C_PM0] = cword | ANTIC_cl[C_PF1];
ANTIC_cl[C_PF0 | C_PM01] = cword2 | ANTIC_cl[C_PF0];
ANTIC_cl[C_PF1 | C_PM01] = cword2 | ANTIC_cl[C_PF1];
}
}
}
break;
case GTIA_OFFSET_COLPM1:
GTIA_COLPM1 = byte &= 0xfe;
GTIA_COLOUR_TO_WORD(cword,byte);
ANTIC_cl[C_PM123] = ANTIC_cl[C_PM1] = cword;
ANTIC_cl[C_PM0123] = ANTIC_cl[C_PM01] = cword2 = cword | ANTIC_cl[C_PM0];
if ((GTIA_PRIOR & 4) == 0) {
ANTIC_cl[C_PF2 | C_PM1] = ANTIC_cl[C_PF3 | C_PM1] = cword;
ANTIC_cl[C_PF2 | C_PM01] = ANTIC_cl[C_PF3 | C_PM01] = cword2;
if ((GTIA_PRIOR & 0xc) == 0) {
if (GTIA_PRIOR & 3) {
ANTIC_cl[C_PF0 | C_PM1] = ANTIC_cl[C_PF1 | C_PM1] = cword;
ANTIC_cl[C_PF0 | C_PM01] = ANTIC_cl[C_PF1 | C_PM01] = cword2;
}
else {
ANTIC_cl[C_PF0 | C_PM1] = cword | ANTIC_cl[C_PF0];
ANTIC_cl[C_PF1 | C_PM1] = cword | ANTIC_cl[C_PF1];
ANTIC_cl[C_PF0 | C_PM01] = cword2 | ANTIC_cl[C_PF0];
ANTIC_cl[C_PF1 | C_PM01] = cword2 | ANTIC_cl[C_PF1];
}
}
}
break;
case GTIA_OFFSET_COLPM2:
GTIA_COLPM2 = byte &= 0xfe;
GTIA_COLOUR_TO_WORD(cword,byte);
ANTIC_cl[C_PM2] = cword;
ANTIC_cl[C_PM23] = cword2 = cword | ANTIC_cl[C_PM3];
if (GTIA_PRIOR & 1) {
ANTIC_cl[C_PF0 | C_PM2] = ANTIC_cl[C_PF1 | C_PM2] = cword;
ANTIC_cl[C_PF0 | C_PM23] = ANTIC_cl[C_PF1 | C_PM23] = cword2;
}
if ((GTIA_PRIOR & 6) == 0) {
if (GTIA_PRIOR & 9) {
ANTIC_cl[C_PF2 | C_PM2] = ANTIC_cl[C_PF3 | C_PM2] = cword;
ANTIC_cl[C_PF2 | C_PM23] = ANTIC_cl[C_PF3 | C_PM23] = cword2;
}
else {
ANTIC_cl[C_PF2 | C_PM2] = cword | ANTIC_cl[C_PF2];
ANTIC_cl[C_PF3 | C_PM25] = ANTIC_cl[C_PF2 | C_PM25] = ANTIC_cl[C_PM25] = ANTIC_cl[C_PF3 | C_PM2] = cword | ANTIC_cl[C_PF3];
ANTIC_cl[C_PF2 | C_PM23] = cword2 | ANTIC_cl[C_PF2];
ANTIC_cl[C_PF3 | C_PM235] = ANTIC_cl[C_PF2 | C_PM235] = ANTIC_cl[C_PM235] = ANTIC_cl[C_PF3 | C_PM23] = cword2 | ANTIC_cl[C_PF3];
}
}
break;
case GTIA_OFFSET_COLPM3:
GTIA_COLPM3 = byte &= 0xfe;
GTIA_COLOUR_TO_WORD(cword,byte);
ANTIC_cl[C_PM3] = cword;
ANTIC_cl[C_PM23] = cword2 = cword | ANTIC_cl[C_PM2];
if (GTIA_PRIOR & 1) {
ANTIC_cl[C_PF0 | C_PM3] = ANTIC_cl[C_PF1 | C_PM3] = cword;
ANTIC_cl[C_PF0 | C_PM23] = ANTIC_cl[C_PF1 | C_PM23] = cword2;
}
if ((GTIA_PRIOR & 6) == 0) {
if (GTIA_PRIOR & 9) {
ANTIC_cl[C_PF2 | C_PM3] = ANTIC_cl[C_PF3 | C_PM3] = cword;
ANTIC_cl[C_PF2 | C_PM23] = ANTIC_cl[C_PF3 | C_PM23] = cword2;
}
else {
ANTIC_cl[C_PF2 | C_PM3] = cword | ANTIC_cl[C_PF2];
ANTIC_cl[C_PF3 | C_PM35] = ANTIC_cl[C_PF2 | C_PM35] = ANTIC_cl[C_PM35] = ANTIC_cl[C_PF3 | C_PM3] = cword | ANTIC_cl[C_PF3];
ANTIC_cl[C_PF2 | C_PM23] = cword2 | ANTIC_cl[C_PF2];
ANTIC_cl[C_PF3 | C_PM235] = ANTIC_cl[C_PF2 | C_PM235] = ANTIC_cl[C_PM235] = ANTIC_cl[C_PF3 | C_PM23] = cword2 | ANTIC_cl[C_PF3];
}
}
break;
#endif /* USE_COLOUR_TRANSLATION_TABLE */
case GTIA_OFFSET_GRAFM:
GTIA_GRAFM = byte;
UPDATE_PM_CYCLE_EXACT
break;
#ifdef NEW_CYCLE_EXACT
#define CYCLE_EXACT_GRAFP(n) x = ANTIC_XPOS * 2 - 3;\
if (GTIA_HPOSP##n >= x) {\
/* hpos right of x */\
/* redraw */ \
UPDATE_PM_CYCLE_EXACT\
}
#else
#define CYCLE_EXACT_GRAFP(n)
#endif /* NEW_CYCLE_EXACT */
#define DO_GRAFP(n) case GTIA_OFFSET_GRAFP##n:\
GTIA_GRAFP##n = byte;\
CYCLE_EXACT_GRAFP(n);\
break;
DO_GRAFP(0)
DO_GRAFP(1)
DO_GRAFP(2)
DO_GRAFP(3)