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ScriptedAmigaEmulator/sae/blitter.js
Rupert Hausberger dd3bb23b86 update 0.8.1
2013-07-07 16:53:47 +02:00

2837 lines
89 KiB
JavaScript
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/**************************************************************************
* SAE - Scripted Amiga Emulator
*
* https://github.com/naTmeg/ScriptedAmigaEmulator
*
* ©2012 Rupert Hausberger
* Commercial use is prohibited.
*
***************************************************************************
* Notes: Ported from WinUAE 2.5.0
*
**************************************************************************/
function Blitter() {
const FAST = true;
const BLITTER_MAX_WORDS = 2048;
const blit_cycle_diagram = [
[2, 0,0, 0,0 ], /* 0 -- */
[2, 0,0, 0,4 ], /* 1 -D */
[2, 0,3, 0,3 ], /* 2 -C */
[3, 0,3,0, 0,3,4 ], /* 3 -CD */
[3, 0,2,0, 0,2,0 ], /* 4 -B- */
[3, 0,2,0, 0,2,4 ], /* 5 -BD */
[3, 0,2,3, 0,2,3 ], /* 6 -BC */
[4, 0,2,3,0, 0,2,3,4], /* 7 -BCD */
[2, 1,0, 1,0 ], /* 8 A- */
[2, 1,0, 1,4 ], /* 9 AD */
[2, 1,3, 1,3 ], /* A AC */
[3, 1,3,0, 1,3,4 ], /* B ACD */
[3, 1,2,0, 1,2,0 ], /* C AB- */
[3, 1,2,0, 1,2,4 ], /* D ABD */
[3, 1,2,3, 1,2,3 ], /* E ABC */
[4, 1,2,3,0, 1,2,3,4] /* F ABCD */
];
const blit_cycle_diagram_fill = [
[0 ], /* 0 */
[3, 0,0,0, 0,4,0 ], /* 1 */
[0 ], /* 2 */
[0 ], /* 3 */
[0 ], /* 4 */
[4, 0,2,0,0, 0,2,4,0], /* 5 */
[0 ], /* 6 */
[0 ], /* 7 */
[0 ], /* 8 */
[3, 1,0,0, 1,4,0 ], /* 9 */
[0 ], /* A */
[0 ], /* B */
[0 ], /* C */
[4, 1,2,0,0, 1,2,4,0], /* D */
[0 ], /* E */
[0 ] /* F */
];
const blit_cycle_diagram_line = [4, 0,3,5,4, 0,3,5,4];
//const blit_cycle_diagram_finald = [2, 0,4, 0,4];
//const blit_cycle_diagram_finalld = [2, 0,0, 0,0];
var blit_filltable = [];
var blit_masktable = [];
var blit_interrupt = true;
var blit_ch = 0;
var blit_slowdown = 0;
var blit_stuck = 0;
var blit_cyclecounter = 0;
var blit_firstline_cycles = 0;
var blit_first_cycle = 0;
var blit_last_cycle = 0, blit_dmacount = 0, blit_dmacount2 = 0;
var blit_nod = 0;
var blit_diag = [];
var blit_faulty = 0;
var original_ch = 0, original_fill = 0, original_line = 0;
var bltstate = BLT_done;
var bltcon0 = 0;
var bltcon1 = 0;
var bltapt = 0;
var bltapt_line = null;
var bltbpt = 0;
var bltcpt = 0;
var bltdpt = 0;
var blinea_shift = 0;
var blinea = 0, blineb = 0;
var blitline = 0, blitfc = 0, blitfill = 0, blitife = 0, blitsing = 0, blitdesc = 0;
var blitonedot = 0, blitsign = 0, blitlinepixel = 0;
var ddat1use = 0, ddat2use = 0;
var last_blitter_hpos = 0;
var blt_info = {
blitzero:0,
blitashift:0, blitbshift:0, blitdownashift:0, blitdownbshift:0,
bltadat:0, bltbdat:0, bltcdat:0, bltddat:0,
bltahold:0, bltbhold:0, bltafwm:0, bltalwm:0,
vblitsize:0, hblitsize:0,
bltamod:0, bltbmod:0, bltcmod:0, bltdmod:0,
got_cycle:0
};
//function build_blitfilltable()
{
blit_masktable = new Uint16Array(BLITTER_MAX_WORDS);
for (var i = 0; i < BLITTER_MAX_WORDS; i++)
blit_masktable[i] = 0xffff;
blit_filltable = [];
for (var d = 0; d < 256; d++) {
blit_filltable[d] = [];
for (var i = 0; i < 4; i++) {
var fc = (i & 1) == 1;
var data = d;
blit_filltable[d][i] = [];
for (var fillmask = 1; fillmask != 0x100; fillmask <<= 1) {
var tmp = data;
if (fc) {
if (i & 2)
data |= fillmask;
else
data ^= fillmask;
}
if (tmp & fillmask) fc = !fc;
}
blit_filltable[d][i][0] = data;
blit_filltable[d][i][1] = fc;
}
}
}
/*---------------------------------*/
this.reset = function () {
bltstate = BLT_done;
blit_interrupt = true;
blit_stuck = 0;
};
/*function blitter_dump() {
BUG.info('PT A=%08X B=%08X C=%08X D=%08X', bltapt, bltbpt, bltcpt, bltdpt);
BUG.info('CON0=%04X CON1=%04X DAT A=%04X B=%04X C=%04X', bltcon0, bltcon1, blt_info.bltadat, blt_info.bltbdat, blt_info.bltcdat);
//BUG.info('AFWM=%04X ALWM=%04X MOD A=%04X B=%04X C=%04X D=%04X', blt_info.bltafwm, blt_info.bltalwm, blt_info.bltamod & 0xffff, blt_info.bltbmod & 0xffff, blt_info.bltcmod & 0xffff, blt_info.bltdmod & 0xffff);
BUG.info('AFWM=%04X ALWM=%04X MOD A=%04X B=%04X C=%04X D=%04X', blt_info.bltafwm, blt_info.bltalwm, blt_info.bltamod, blt_info.bltbmod, blt_info.bltcmod, blt_info.bltdmod);
}*/
function castWord(v) {
return (v & 0x8000) ? (v - 0x10000) : v;
}
function get_ch() {
if (blit_faulty) {
console.log('get_ch() blit_faulty');
return blit_cycle_diagram[0]; //&blit_diag[0];
}
return blit_diag;
}
function channel_state(cycles) {
//console.log('channel_state()', cycles);
if (cycles < 0)
return 0;
var diag = get_ch();
if (cycles < diag[0])
return diag[1 + cycles];
cycles -= diag[0];
cycles %= diag[0];
return diag[1 + diag[0] + cycles];
}
/*function channel_pos(cycles) {
if (cycles < 0)
return 0;
var diag = get_ch();
if (cycles < diag[0])
return cycles;
cycles -= diag[0];
cycles %= diag[0];
return cycles;
}*/
function blitter_interrupt() {
if (blit_interrupt)
return;
blit_interrupt = true;
AMIGA.INTREQ_0(INT_BLIT);
}
function blitter_done(hpos) {
ddat1use = ddat2use = 0;
bltstate = BLT_done;
blitter_interrupt();
AMIGA.copper.blitter_done_notify(hpos);
AMIGA.events.remevent(EV2_BLITTER);
clr_special(SPCFLAG_BLTNASTY);
}
/*---------------------------------*/
/* ~1500 lines of auto-generated functions are follwing... */
/*---------------------------------*/
function blitdofast_0(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = (0) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (ptd) ptd += b.bltdmod;
}
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_0(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = (0) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (ptd) ptd -= b.bltdmod;
}
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_a(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc += 2; }
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((~srca & srcc)) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptc) ptc += b.bltcmod;
if (ptd) ptd += b.bltdmod;
}
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_a(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc -= 2; }
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((~srca & srcc)) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptc) ptc -= b.bltcmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_2a(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc += 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc & ~(srca & srcb))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptb) ptb += b.bltbmod;
if (ptc) ptc += b.bltcmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_2a(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc -= 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc & ~(srca & srcb))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptb) ptb -= b.bltbmod;
if (ptc) ptc -= b.bltcmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_30(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srca & ~srcb)) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptb) ptb += b.bltbmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_30(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srca & ~srcb)) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptb) ptb -= b.bltbmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_3a(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc += 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcb ^ (srca | (srcb ^ srcc)))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptb) ptb += b.bltbmod;
if (ptc) ptc += b.bltcmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_3a(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc -= 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcb ^ (srca | (srcb ^ srcc)))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptb) ptb -= b.bltbmod;
if (ptc) ptc -= b.bltcmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_3c(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srca ^ srcb)) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptb) ptb += b.bltbmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_3c(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srca ^ srcb)) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptb) ptb -= b.bltbmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_4a(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc += 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc ^ (srca & (srcb | srcc)))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptb) ptb += b.bltbmod;
if (ptc) ptc += b.bltcmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_4a(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc -= 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc ^ (srca & (srcb | srcc)))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptb) ptb -= b.bltbmod;
if (ptc) ptc -= b.bltcmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_6a(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc += 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc ^ (srca & srcb))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptb) ptb += b.bltbmod;
if (ptc) ptc += b.bltcmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_6a(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc -= 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc ^ (srca & srcb))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptb) ptb -= b.bltbmod;
if (ptc) ptc -= b.bltcmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_8a(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc += 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc & (~srca | srcb))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptb) ptb += b.bltbmod;
if (ptc) ptc += b.bltcmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_8a(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc -= 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc & (~srca | srcb))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptb) ptb -= b.bltbmod;
if (ptc) ptc -= b.bltcmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_8c(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc += 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcb & (~srca | srcc))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptb) ptb += b.bltbmod;
if (ptc) ptc += b.bltcmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_8c(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc -= 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcb & (~srca | srcc))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptb) ptb -= b.bltbmod;
if (ptc) ptc -= b.bltcmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_9a(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc += 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc ^ (srca & ~srcb))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptb) ptb += b.bltbmod;
if (ptc) ptc += b.bltcmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_9a(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc -= 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc ^ (srca & ~srcb))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptb) ptb -= b.bltbmod;
if (ptc) ptc -= b.bltcmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_a8(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc += 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc & (srca | srcb))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptb) ptb += b.bltbmod;
if (ptc) ptc += b.bltcmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_a8(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc -= 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc & (srca | srcb))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptb) ptb -= b.bltbmod;
if (ptc) ptc -= b.bltcmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_aa(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc += 2; }
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = (srcc) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (ptc) ptc += b.bltcmod;
if (ptd) ptd += b.bltdmod;
}
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_aa(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc -= 2; }
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = (srcc) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (ptc) ptc -= b.bltcmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_b1(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc += 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = (~(srca ^ (srcc | (srca ^ srcb)))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptb) ptb += b.bltbmod;
if (ptc) ptc += b.bltcmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_b1(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc -= 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = (~(srca ^ (srcc | (srca ^ srcb)))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptb) ptb -= b.bltbmod;
if (ptc) ptc -= b.bltcmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_ca(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc += 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc ^ (srca & (srcb ^ srcc)))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptb) ptb += b.bltbmod;
if (ptc) ptc += b.bltcmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_ca(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc -= 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc ^ (srca & (srcb ^ srcc)))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptb) ptb -= b.bltbmod;
if (ptc) ptc -= b.bltcmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_cc(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var prevb = 0, srcb = b.bltbhold;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = (srcb) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (ptb) ptb += b.bltbmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_cc(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var prevb = 0, srcb = b.bltbhold;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = (srcb) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (ptb) ptb -= b.bltbmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_d8(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc += 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srca ^ (srcc & (srca ^ srcb)))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptb) ptb += b.bltbmod;
if (ptc) ptc += b.bltcmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_d8(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc -= 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srca ^ (srcc & (srca ^ srcb)))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptb) ptb -= b.bltbmod;
if (ptc) ptc -= b.bltcmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_e2(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc += 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc ^ (srcb & (srca ^ srcc)))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptb) ptb += b.bltbmod;
if (ptc) ptc += b.bltcmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_e2(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc -= 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc ^ (srcb & (srca ^ srcc)))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptb) ptb -= b.bltbmod;
if (ptc) ptc -= b.bltcmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_ea(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc += 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc | (srca & srcb))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptb) ptb += b.bltbmod;
if (ptc) ptc += b.bltcmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_ea(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc -= 2; }
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srcc | (srca & srcb))) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptb) ptb -= b.bltbmod;
if (ptc) ptc -= b.bltcmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_f0(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = (srca) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptd) ptd += b.bltdmod;
}
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_f0(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = (srca) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptd) ptd -= b.bltdmod;
}
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_fa(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc += 2; }
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srca | srcc)) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptc) ptc += b.bltcmod;
if (ptd) ptd += b.bltdmod;
}
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_fa(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var srcc = b.bltcdat;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptc) { srcc = AMIGA.mem.chip.data[ptc >>> 1]; ptc -= 2; }
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srca | srcc)) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptc) ptc -= b.bltcmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltcdat = srcc;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_fc(pta, ptb, ptc, ptd, b) {
var i,j;
var totald = 0;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb += 2;
srcb = ((((prevb << 16) | bltbdat) >>> 0) >>> b.blitbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta += 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((preva << 16) | bltadat) >>> 0) >>> b.blitashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srca | srcb)) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd += 2; }
}
if (pta) pta += b.bltamod;
if (ptb) ptb += b.bltbmod;
if (ptd) ptd += b.bltdmod;
}
b.bltbhold = srcb;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
function blitdofast_desc_fc(pta, ptb, ptc, ptd, b) {
var totald = 0;
var i,j;
var preva = 0;
var prevb = 0, srcb = b.bltbhold;
var dstd = 0;
var dstp = 0;
for (j = 0; j < b.vblitsize; j++) {
for (i = 0; i < b.hblitsize; i++) {
var bltadat, srca;
if (ptb) {
var bltbdat = blt_info.bltbdat = AMIGA.mem.chip.data[ptb >>> 1]; ptb -= 2;
srcb = ((((bltbdat << 16) | prevb) >>> 0) >>> b.blitdownbshift) & 0xffff;
prevb = bltbdat;
}
if (pta) { bltadat = blt_info.bltadat = AMIGA.mem.chip.data[pta >>> 1]; pta -= 2; } else { bltadat = blt_info.bltadat; }
bltadat &= blit_masktable[i];
srca = ((((bltadat << 16) | preva) >>> 0) >>> b.blitdownashift) & 0xffff;
preva = bltadat;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
dstd = ((srca | srcb)) & 0xffff;
totald |= dstd;
if (ptd) { dstp = ptd; ptd -= 2; }
}
if (pta) pta -= b.bltamod;
if (ptb) ptb -= b.bltbmod;
if (ptd) ptd -= b.bltdmod;
}
b.bltbhold = srcb;
if (dstp) AMIGA.mem.chip.data[dstp >>> 1] = dstd;
if (totald != 0) b.blitzero = 0;
}
const blitfunc_dofast = [
blitdofast_0, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_a, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_2a, 0, 0, 0, 0, 0,
blitdofast_30, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_3a, 0, blitdofast_3c, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_4a, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_6a, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_8a, 0, blitdofast_8c, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_9a, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
blitdofast_a8, 0, blitdofast_aa, 0, 0, 0, 0, 0,
0, blitdofast_b1, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_ca, 0, blitdofast_cc, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
blitdofast_d8, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_e2, 0, 0, 0, 0, 0,
0, 0, blitdofast_ea, 0, 0, 0, 0, 0,
blitdofast_f0, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_fa, 0, blitdofast_fc, 0, 0, 0
];
const blitfunc_dofast_desc = [
blitdofast_desc_0, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_desc_a, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_desc_2a, 0, 0, 0, 0, 0,
blitdofast_desc_30, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_desc_3a, 0, blitdofast_desc_3c, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_desc_4a, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_desc_6a, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_desc_8a, 0, blitdofast_desc_8c, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_desc_9a, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
blitdofast_desc_a8, 0, blitdofast_desc_aa, 0, 0, 0, 0, 0,
0, blitdofast_desc_b1, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_desc_ca, 0, blitdofast_desc_cc, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
blitdofast_desc_d8, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_desc_e2, 0, 0, 0, 0, 0,
0, 0, blitdofast_desc_ea, 0, 0, 0, 0, 0,
blitdofast_desc_f0, 0, 0, 0, 0, 0, 0, 0,
0, 0, blitdofast_desc_fa, 0, blitdofast_desc_fc, 0, 0, 0
];
function blit_func(a, b, c, mt) {
switch (mt) {
case 0x00: return 0;
case 0x01: return (~c & ~b & ~a);
case 0x02: return (c & ~b & ~a);
case 0x03: return (~b & ~a);
case 0x04: return (~c & b & ~a);
case 0x05: return (~c & ~a);
case 0x06: return (c & ~b & ~a) | (~c & b & ~a);
case 0x07: return (~b & ~a) | (~c & ~a);
case 0x08: return (c & b & ~a);
case 0x09: return (~c & ~b & ~a) | (c & b & ~a);
case 0x0a: return (c & ~a);
case 0x0b: return (~b & ~a) | (c & ~a);
case 0x0c: return (b & ~a);
case 0x0d: return (~c & ~a) | (b & ~a);
case 0x0e: return (c & ~a) | (b & ~a);
case 0x0f: return (~a);
case 0x10: return (~c & ~b & a);
case 0x11: return (~c & ~b);
case 0x12: return (c & ~b & ~a) | (~c & ~b & a);
case 0x13: return (~b & ~a) | (~c & ~b);
case 0x14: return (~c & b & ~a) | (~c & ~b & a);
case 0x15: return (~c & ~a) | (~c & ~b);
case 0x16: return (c & ~b & ~a) | (~c & b & ~a) | (~c & ~b & a);
case 0x17: return (~b & ~a) | (~c & ~a) | (~c & ~b);
case 0x18: return (c & b & ~a) | (~c & ~b & a);
case 0x19: return (~c & ~b) | (c & b & ~a);
case 0x1a: return (c & ~a) | (~c & ~b & a);
case 0x1b: return (~b & ~a) | (c & ~a) | (~c & ~b);
case 0x1c: return (b & ~a) | (~c & ~b & a);
case 0x1d: return (~c & ~a) | (b & ~a) | (~c & ~b);
case 0x1e: return (c & ~a) | (b & ~a) | (~c & ~b & a);
case 0x1f: return (~a) | (~c & ~b);
case 0x20: return (c & ~b & a);
case 0x21: return (~c & ~b & ~a) | (c & ~b & a);
case 0x22: return (c & ~b);
case 0x23: return (~b & ~a) | (c & ~b);
case 0x24: return (~c & b & ~a) | (c & ~b & a);
case 0x25: return (~c & ~a) | (c & ~b & a);
case 0x26: return (c & ~b) | (~c & b & ~a);
case 0x27: return (~b & ~a) | (~c & ~a) | (c & ~b);
case 0x28: return (c & b & ~a) | (c & ~b & a);
case 0x29: return (~c & ~b & ~a) | (c & b & ~a) | (c & ~b & a);
case 0x2a: return (c & ~a) | (c & ~b);
case 0x2b: return (~b & ~a) | (c & ~a) | (c & ~b);
case 0x2c: return (b & ~a) | (c & ~b & a);
case 0x2d: return (~c & ~a) | (b & ~a) | (c & ~b & a);
case 0x2e: return (c & ~a) | (b & ~a) | (c & ~b);
case 0x2f: return (~a) | (c & ~b);
case 0x30: return (~b & a);
case 0x31: return (~c & ~b) | (~b & a);
case 0x32: return (c & ~b) | (~b & a);
case 0x33: return (~b);
case 0x34: return (~c & b & ~a) | (~b & a);
case 0x35: return (~c & ~a) | (~b & a);
case 0x36: return (c & ~b) | (~c & b & ~a) | (~b & a);
case 0x37: return (~b) | (~c & ~a);
case 0x38: return (c & b & ~a) | (~b & a);
case 0x39: return (~c & ~b) | (c & b & ~a) | (~b & a);
case 0x3a: return (c & ~a) | (~b & a);
case 0x3b: return (~b) | (c & ~a);
case 0x3c: return (b & ~a) | (~b & a);
case 0x3d: return (~c & ~a) | (b & ~a) | (~b & a);
case 0x3e: return (c & ~a) | (b & ~a) | (~b & a);
case 0x3f: return (~a) | (~b);
case 0x40: return (~c & b & a);
case 0x41: return (~c & ~b & ~a) | (~c & b & a);
case 0x42: return (c & ~b & ~a) | (~c & b & a);
case 0x43: return (~b & ~a) | (~c & b & a);
case 0x44: return (~c & b);
case 0x45: return (~c & ~a) | (~c & b);
case 0x46: return (c & ~b & ~a) | (~c & b);
case 0x47: return (~b & ~a) | (~c & ~a) | (~c & b);
case 0x48: return (c & b & ~a) | (~c & b & a);
case 0x49: return (~c & ~b & ~a) | (c & b & ~a) | (~c & b & a);
case 0x4a: return (c & ~a) | (~c & b & a);
case 0x4b: return (~b & ~a) | (c & ~a) | (~c & b & a);
case 0x4c: return (b & ~a) | (~c & b);
case 0x4d: return (~c & ~a) | (b & ~a) | (~c & b);
case 0x4e: return (c & ~a) | (b & ~a) | (~c & b);
case 0x4f: return (~a) | (~c & b);
case 0x50: return (~c & a);
case 0x51: return (~c & ~b) | (~c & a);
case 0x52: return (c & ~b & ~a) | (~c & a);
case 0x53: return (~b & ~a) | (~c & a);
case 0x54: return (~c & b) | (~c & a);
case 0x55: return (~c);
case 0x56: return (c & ~b & ~a) | (~c & b) | (~c & a);
case 0x57: return (~b & ~a) | (~c);
case 0x58: return (c & b & ~a) | (~c & a);
case 0x59: return (~c & ~b) | (c & b & ~a) | (~c & a);
case 0x5a: return (c & ~a) | (~c & a);
case 0x5b: return (~b & ~a) | (c & ~a) | (~c & a);
case 0x5c: return (b & ~a) | (~c & a);
case 0x5d: return (~c) | (b & ~a);
case 0x5e: return (c & ~a) | (b & ~a) | (~c & a);
case 0x5f: return (~a) | (~c);
case 0x60: return (c & ~b & a) | (~c & b & a);
case 0x61: return (~c & ~b & ~a) | (c & ~b & a) | (~c & b & a);
case 0x62: return (c & ~b) | (~c & b & a);
case 0x63: return (~b & ~a) | (c & ~b) | (~c & b & a);
case 0x64: return (~c & b) | (c & ~b & a);
case 0x65: return (~c & ~a) | (c & ~b & a) | (~c & b);
case 0x66: return (c & ~b) | (~c & b);
case 0x67: return (~b & ~a) | (~c & ~a) | (c & ~b) | (~c & b);
case 0x68: return (c & b & ~a) | (c & ~b & a) | (~c & b & a);
case 0x69: return (~c & ~b & ~a) | (c & b & ~a) | (c & ~b & a) | (~c & b & a);
case 0x6a: return (c & ~a) | (c & ~b) | (~c & b & a);
case 0x6b: return (~b & ~a) | (c & ~a) | (c & ~b) | (~c & b & a);
case 0x6c: return (b & ~a) | (c & ~b & a) | (~c & b);
case 0x6d: return (~c & ~a) | (b & ~a) | (c & ~b & a) | (~c & b);
case 0x6e: return (c & ~a) | (b & ~a) | (c & ~b) | (~c & b);
case 0x6f: return (~a) | (c & ~b) | (~c & b);
case 0x70: return (~b & a) | (~c & a);
case 0x71: return (~c & ~b) | (~b & a) | (~c & a);
case 0x72: return (c & ~b) | (~b & a) | (~c & a);
case 0x73: return (~b) | (~c & a);
case 0x74: return (~c & b) | (~b & a);
case 0x75: return (~c) | (~b & a);
case 0x76: return (c & ~b) | (~c & b) | (~b & a);
case 0x77: return (~b) | (~c);
case 0x78: return (c & b & ~a) | (~b & a) | (~c & a);
case 0x79: return (~c & ~b) | (c & b & ~a) | (~b & a) | (~c & a);
case 0x7a: return (c & ~a) | (~b & a) | (~c & a);
case 0x7b: return (~b) | (c & ~a) | (~c & a);
case 0x7c: return (b & ~a) | (~b & a) | (~c & a);
case 0x7d: return (~c) | (b & ~a) | (~b & a);
case 0x7e: return (c & ~a) | (b & ~a) | (~b & a) | (~c & a);
case 0x7f: return (~a) | (~b) | (~c);
case 0x80: return (c & b & a);
case 0x81: return (~c & ~b & ~a) | (c & b & a);
case 0x82: return (c & ~b & ~a) | (c & b & a);
case 0x83: return (~b & ~a) | (c & b & a);
case 0x84: return (~c & b & ~a) | (c & b & a);
case 0x85: return (~c & ~a) | (c & b & a);
case 0x86: return (c & ~b & ~a) | (~c & b & ~a) | (c & b & a);
case 0x87: return (~b & ~a) | (~c & ~a) | (c & b & a);
case 0x88: return (c & b);
case 0x89: return (~c & ~b & ~a) | (c & b);
case 0x8a: return (c & ~a) | (c & b);
case 0x8b: return (~b & ~a) | (c & ~a) | (c & b);
case 0x8c: return (b & ~a) | (c & b);
case 0x8d: return (~c & ~a) | (b & ~a) | (c & b);
case 0x8e: return (c & ~a) | (b & ~a) | (c & b);
case 0x8f: return (~a) | (c & b);
case 0x90: return (~c & ~b & a) | (c & b & a);
case 0x91: return (~c & ~b) | (c & b & a);
case 0x92: return (c & ~b & ~a) | (~c & ~b & a) | (c & b & a);
case 0x93: return (~b & ~a) | (~c & ~b) | (c & b & a);
case 0x94: return (~c & b & ~a) | (~c & ~b & a) | (c & b & a);
case 0x95: return (~c & ~a) | (~c & ~b) | (c & b & a);
case 0x96: return (c & ~b & ~a) | (~c & b & ~a) | (~c & ~b & a) | (c & b & a);
case 0x97: return (~b & ~a) | (~c & ~a) | (~c & ~b) | (c & b & a);
case 0x98: return (c & b) | (~c & ~b & a);
case 0x99: return (~c & ~b) | (c & b);
case 0x9a: return (c & ~a) | (~c & ~b & a) | (c & b);
case 0x9b: return (~b & ~a) | (c & ~a) | (~c & ~b) | (c & b);
case 0x9c: return (b & ~a) | (~c & ~b & a) | (c & b);
case 0x9d: return (~c & ~a) | (b & ~a) | (~c & ~b) | (c & b);
case 0x9e: return (c & ~a) | (b & ~a) | (~c & ~b & a) | (c & b);
case 0x9f: return (~a) | (~c & ~b) | (c & b);
case 0xa0: return (c & a);
case 0xa1: return (~c & ~b & ~a) | (c & a);
case 0xa2: return (c & ~b) | (c & a);
case 0xa3: return (~b & ~a) | (c & a);
case 0xa4: return (~c & b & ~a) | (c & a);
case 0xa5: return (~c & ~a) | (c & a);
case 0xa6: return (c & ~b) | (~c & b & ~a) | (c & a);
case 0xa7: return (~b & ~a) | (~c & ~a) | (c & a);
case 0xa8: return (c & b) | (c & a);
case 0xa9: return (~c & ~b & ~a) | (c & b) | (c & a);
case 0xaa: return (c);
case 0xab: return (~b & ~a) | (c);
case 0xac: return (b & ~a) | (c & a);
case 0xad: return (~c & ~a) | (b & ~a) | (c & a);
case 0xae: return (c) | (b & ~a);
case 0xaf: return (~a) | (c);
case 0xb0: return (~b & a) | (c & a);
case 0xb1: return (~c & ~b) | (~b & a) | (c & a);
case 0xb2: return (c & ~b) | (~b & a) | (c & a);
case 0xb3: return (~b) | (c & a);
case 0xb4: return (~c & b & ~a) | (~b & a) | (c & a);
case 0xb5: return (~c & ~a) | (~b & a) | (c & a);
case 0xb6: return (c & ~b) | (~c & b & ~a) | (~b & a) | (c & a);
case 0xb7: return (~b) | (~c & ~a) | (c & a);
case 0xb8: return (c & b) | (~b & a);
case 0xb9: return (~c & ~b) | (c & b) | (~b & a);
case 0xba: return (c) | (~b & a);
case 0xbb: return (~b) | (c);
case 0xbc: return (b & ~a) | (~b & a) | (c & a);
case 0xbd: return (~c & ~a) | (b & ~a) | (~b & a) | (c & a);
case 0xbe: return (c) | (b & ~a) | (~b & a);
case 0xbf: return (~a) | (~b) | (c);
case 0xc0: return (b & a);
case 0xc1: return (~c & ~b & ~a) | (b & a);
case 0xc2: return (c & ~b & ~a) | (b & a);
case 0xc3: return (~b & ~a) | (b & a);
case 0xc4: return (~c & b) | (b & a);
case 0xc5: return (~c & ~a) | (b & a);
case 0xc6: return (c & ~b & ~a) | (~c & b) | (b & a);
case 0xc7: return (~b & ~a) | (~c & ~a) | (b & a);
case 0xc8: return (c & b) | (b & a);
case 0xc9: return (~c & ~b & ~a) | (c & b) | (b & a);
case 0xca: return (c & ~a) | (b & a);
case 0xcb: return (~b & ~a) | (c & ~a) | (b & a);
case 0xcc: return (b);
case 0xcd: return (~c & ~a) | (b);
case 0xce: return (c & ~a) | (b);
case 0xcf: return (~a) | (b);
case 0xd0: return (~c & a) | (b & a);
case 0xd1: return (~c & ~b) | (b & a);
case 0xd2: return (c & ~b & ~a) | (~c & a) | (b & a);
case 0xd3: return (~b & ~a) | (~c & a) | (b & a);
case 0xd4: return (~c & b) | (~c & a) | (b & a);
case 0xd5: return (~c) | (b & a);
case 0xd6: return (c & ~b & ~a) | (~c & b) | (~c & a) | (b & a);
case 0xd7: return (~b & ~a) | (~c) | (b & a);
case 0xd8: return (c & b) | (~c & a);
case 0xd9: return (~c & ~b) | (c & b) | (b & a);
case 0xda: return (c & ~a) | (~c & a) | (b & a);
case 0xdb: return (~b & ~a) | (c & ~a) | (~c & a) | (b & a);
case 0xdc: return (b) | (~c & a);
case 0xdd: return (~c) | (b);
case 0xde: return (c & ~a) | (b) | (~c & a);
case 0xdf: return (~a) | (~c) | (b);
case 0xe0: return (c & a) | (b & a);
case 0xe1: return (~c & ~b & ~a) | (c & a) | (b & a);
case 0xe2: return (c & ~b) | (b & a);
case 0xe3: return (~b & ~a) | (c & a) | (b & a);
case 0xe4: return (~c & b) | (c & a);
case 0xe5: return (~c & ~a) | (c & a) | (b & a);
case 0xe6: return (c & ~b) | (~c & b) | (b & a);
case 0xe7: return (~b & ~a) | (~c & ~a) | (c & a) | (b & a);
case 0xe8: return (c & b) | (c & a) | (b & a);
case 0xe9: return (~c & ~b & ~a) | (c & b) | (c & a) | (b & a);
case 0xea: return (c) | (b & a);
case 0xeb: return (~b & ~a) | (c) | (b & a);
case 0xec: return (b) | (c & a);
case 0xed: return (~c & ~a) | (b) | (c & a);
case 0xee: return (c) | (b);
case 0xef: return (~a) | (c) | (b);
case 0xf0: return (a);
case 0xf1: return (~c & ~b) | (a);
case 0xf2: return (c & ~b) | (a);
case 0xf3: return (~b) | (a);
case 0xf4: return (~c & b) | (a);
case 0xf5: return (~c) | (a);
case 0xf6: return (c & ~b) | (~c & b) | (a);
case 0xf7: return (~b) | (~c) | (a);
case 0xf8: return (c & b) | (a);
case 0xf9: return (~c & ~b) | (c & b) | (a);
case 0xfa: return (c) | (a);
case 0xfb: return (~b) | (c) | (a);
case 0xfc: return (b) | (a);
case 0xfd: return (~c) | (b) | (a);
case 0xfe: return (c) | (b) | (a);
case 0xff: return 0xffff;
default: return 0;
}
}
function blitter_dofast() {
//console.log('blitter_dofast');
var i,j;
var bltadatptr = 0, bltbdatptr = 0, bltcdatptr = 0, bltddatptr = 0;
var mt = bltcon0 & 0xFF;
blit_masktable[0] = blt_info.bltafwm;
blit_masktable[blt_info.hblitsize - 1] &= blt_info.bltalwm;
if (bltcon0 & 0x800) {
bltadatptr = bltapt;
bltapt += (blt_info.hblitsize * 2 + blt_info.bltamod) * blt_info.vblitsize;
}
if (bltcon0 & 0x400) {
bltbdatptr = bltbpt;
bltbpt += (blt_info.hblitsize * 2 + blt_info.bltbmod) * blt_info.vblitsize;
}
if (bltcon0 & 0x200) {
bltcdatptr = bltcpt;
bltcpt += (blt_info.hblitsize * 2 + blt_info.bltcmod) * blt_info.vblitsize;
}
if (bltcon0 & 0x100) {
bltddatptr = bltdpt;
bltdpt += (blt_info.hblitsize * 2 + blt_info.bltdmod) * blt_info.vblitsize;
}
if (FAST && blitfunc_dofast[mt] !== 0 && !blitfill)
blitfunc_dofast[mt](bltadatptr, bltbdatptr, bltcdatptr, bltddatptr, blt_info);
else {
var blitbhold = blt_info.bltbhold;
var preva = 0, prevb = 0;
var dstp = 0;
var dodst = 0;
for (j = 0; j < blt_info.vblitsize; j++) {
blitfc = !!(bltcon1 & 0x4);
for (i = 0; i < blt_info.hblitsize; i++) {
var bltadat, blitahold;
var bltbdat;
if (bltadatptr) {
//blt_info.bltadat = bltadat = AMIGA.mem.load16_chip(bltadatptr);
blt_info.bltadat = bltadat = AMIGA.mem.chip.data[bltadatptr >>> 1];
bltadatptr += 2;
} else
bltadat = blt_info.bltadat;
bltadat &= blit_masktable[i];
blitahold = (((preva << 16) | bltadat) >>> 0) >>> blt_info.blitashift;
preva = bltadat;
if (bltbdatptr) {
//blt_info.bltbdat = bltbdat = AMIGA.mem.load16_chip(bltbdatptr);
blt_info.bltbdat = bltbdat = AMIGA.mem.chip.data[bltbdatptr >>> 1];
bltbdatptr += 2;
blitbhold = (((prevb << 16) | bltbdat) >>> 0) >>> blt_info.blitbshift;
prevb = bltbdat;
}
if (bltcdatptr) {
//blt_info.bltcdat = AMIGA.mem.load16_chip(bltcdatptr);
blt_info.bltcdat = AMIGA.mem.chip.data[bltcdatptr >>> 1];
bltcdatptr += 2;
}
if (dodst)
//AMIGA.mem.store16_chip(dstp, blt_info.bltddat);
AMIGA.mem.chip.data[dstp >>> 1] = blt_info.bltddat;
blt_info.bltddat = (blit_func(blitahold & 0xffff, blitbhold & 0xffff, blt_info.bltcdat & 0xffff, mt) >>> 0) & 0xffff;
if (blitfill) {
var d = blt_info.bltddat;
var ifemode = blitife ? 2 : 0;
var fc1 = blit_filltable[d & 255][ifemode + blitfc][1];
blt_info.bltddat = (blit_filltable[d & 255][ifemode + blitfc][0] + (blit_filltable[d >> 8][ifemode + fc1][0] << 8));
blitfc = blit_filltable[d >> 8][ifemode + fc1][1];
}
if (blt_info.bltddat)
blt_info.blitzero = 0;
if (bltddatptr) {
dodst = 1;
dstp = bltddatptr;
bltddatptr += 2;
}
}
if (bltadatptr) bltadatptr += blt_info.bltamod;
if (bltbdatptr) bltbdatptr += blt_info.bltbmod;
if (bltcdatptr) bltcdatptr += blt_info.bltcmod;
if (bltddatptr) bltddatptr += blt_info.bltdmod;
}
if (dodst)
//AMIGA.mem.store16_chip(dstp, blt_info.bltddat);
AMIGA.mem.chip.data[dstp >>> 1] = blt_info.bltddat;
blt_info.bltbhold = blitbhold;
}
blit_masktable[0] = 0xffff;
blit_masktable[blt_info.hblitsize - 1] = 0xffff;
bltstate = BLT_done;
}
function blitter_dofast_desc() {
//console.log('blitter_dofast_desc');
var i,j;
var bltadatptr = 0, bltbdatptr = 0, bltcdatptr = 0, bltddatptr = 0;
var mt = bltcon0 & 0xFF;
blit_masktable[0] = blt_info.bltafwm;
blit_masktable[blt_info.hblitsize - 1] &= blt_info.bltalwm;
if (bltcon0 & 0x800) {
bltadatptr = bltapt;
bltapt -= (blt_info.hblitsize * 2 + blt_info.bltamod) * blt_info.vblitsize;
}
if (bltcon0 & 0x400) {
bltbdatptr = bltbpt;
bltbpt -= (blt_info.hblitsize * 2 + blt_info.bltbmod) * blt_info.vblitsize;
}
if (bltcon0 & 0x200) {
bltcdatptr = bltcpt;
bltcpt -= (blt_info.hblitsize * 2 + blt_info.bltcmod) * blt_info.vblitsize;
}
if (bltcon0 & 0x100) {
bltddatptr = bltdpt;
bltdpt -= (blt_info.hblitsize * 2 + blt_info.bltdmod) * blt_info.vblitsize;
}
if (FAST && blitfunc_dofast_desc[mt] !== 0 && !blitfill)
blitfunc_dofast_desc[mt](bltadatptr, bltbdatptr, bltcdatptr, bltddatptr, blt_info);
else {
var blitbhold = blt_info.bltbhold;
var preva = 0, prevb = 0;
var dstp = 0;
var dodst = 0;
for (j = 0; j < blt_info.vblitsize; j++) {
blitfc = !!(bltcon1 & 0x4);
for (i = 0; i < blt_info.hblitsize; i++) {
var bltadat, blitahold;
var bltbdat;
if (bltadatptr) {
//blt_info.bltadat = bltadat = AMIGA.mem.load16_chip(bltadatptr);
blt_info.bltadat = bltadat = AMIGA.mem.chip.data[bltadatptr >>> 1];
bltadatptr -= 2;
} else
bltadat = blt_info.bltadat;
bltadat &= blit_masktable[i];
blitahold = (((bltadat << 16) | preva) >>> 0) >> blt_info.blitdownashift;
preva = bltadat;
if (bltbdatptr) {
//blt_info.bltbdat = bltbdat = AMIGA.mem.load16_chip(bltbdatptr);
blt_info.bltbdat = bltbdat = AMIGA.mem.chip.data[bltbdatptr >>> 1];
bltbdatptr -= 2;
blitbhold = (((bltbdat << 16) | prevb) >>> 0) >> blt_info.blitdownbshift;
prevb = bltbdat;
}
if (bltcdatptr) {
//blt_info.bltcdat = blt_info.bltbdat = AMIGA.mem.load16_chip(bltcdatptr);
blt_info.bltcdat = blt_info.bltbdat = AMIGA.mem.chip.data[bltcdatptr >>> 1];
bltcdatptr -= 2;
}
if (dodst)
//AMIGA.mem.store16_chip(dstp, blt_info.bltddat);
AMIGA.mem.chip.data[dstp >>> 1] = blt_info.bltddat;
blt_info.bltddat = (blit_func(blitahold & 0xffff, blitbhold & 0xffff, blt_info.bltcdat & 0xffff, mt) >>> 0) & 0xffff;
if (blitfill) {
var d = blt_info.bltddat;
var ifemode = blitife ? 2 : 0;
var fc1 = blit_filltable[d & 255][ifemode + blitfc][1];
blt_info.bltddat = (blit_filltable[d & 255][ifemode + blitfc][0] + (blit_filltable[d >> 8][ifemode + fc1][0] << 8));
blitfc = blit_filltable[d >> 8][ifemode + fc1][1];
}
if (blt_info.bltddat)
blt_info.blitzero = 0;
if (bltddatptr) {
dstp = bltddatptr;
dodst = 1;
bltddatptr -= 2;
}
}
if (bltadatptr) bltadatptr -= blt_info.bltamod;
if (bltbdatptr) bltbdatptr -= blt_info.bltbmod;
if (bltcdatptr) bltcdatptr -= blt_info.bltcmod;
if (bltddatptr) bltddatptr -= blt_info.bltdmod;
}
if (dodst)
//AMIGA.mem.store16_chip(dstp, blt_info.bltddat);
AMIGA.mem.chip.data[dstp >>> 1] = blt_info.bltddat;
blt_info.bltbhold = blitbhold;
}
blit_masktable[0] = 0xffff;
blit_masktable[blt_info.hblitsize - 1] = 0xffff;
bltstate = BLT_done;
}
function blitter_read() {
if (bltcon0 & 0x200) {
if (AMIGA.dmaen(DMAF_BLTEN))
//blt_info.bltcdat = AMIGA.mem.load16_chip(bltcpt);
blt_info.bltcdat = AMIGA.mem.chip.data[bltcpt >>> 1];
}
bltstate = BLT_work;
}
function blitter_write() {
if (blt_info.bltddat)
blt_info.blitzero = 0;
if (bltcon0 & 0x200) {
if (AMIGA.dmaen(DMAF_BLTEN))
//AMIGA.mem.store16_chip(bltdpt, blt_info.bltddat);
AMIGA.mem.chip.data[bltdpt >>> 1] = blt_info.bltddat;
}
bltstate = BLT_next;
}
function blitter_line() {
var blitahold = (blinea & blt_info.bltafwm) >>> blinea_shift;
var blitchold = blt_info.bltcdat;
blt_info.bltbhold = (blineb & 1) ? 0xffff : 0;
blitlinepixel = !blitsing || (blitsing && !blitonedot);
blt_info.bltddat = blit_func(blitahold, blt_info.bltbhold, blitchold, bltcon0 & 0xff);
blitonedot++;
}
/*function blitter_line_incx() {
if (++blinea_shift == 16) {
blinea_shift = 0;
bltcpt += 2;
}
}
function blitter_line_decx() {
if (blinea_shift-- == 0) {
blinea_shift = 15;
bltcpt -= 2;
}
}
function blitter_line_decy() {
bltcpt -= blt_info.bltcmod;
blitonedot = 0;
}
function blitter_line_incy() {
bltcpt += blt_info.bltcmod;
blitonedot = 0;
}
function blitter_line_proc() {
if (bltcon0 & 0x800) {
if (blitsign)
bltapt_line += blt_info.bltbmod;
else
bltapt_line += blt_info.bltamod;
}
if (!blitsign) {
if (bltcon1 & 0x10) {
if (bltcon1 & 0x8) {
blitter_line_decy();
} else {
blitter_line_incy();
}
} else {
if (bltcon1 & 0x8) {
blitter_line_decx();
} else {
blitter_line_incx();
}
}
}
if (bltcon1 & 0x10) {
if (bltcon1 & 0x4) {
blitter_line_decx();
} else {
blitter_line_incx();
}
} else {
if (bltcon1 & 0x4) {
blitter_line_decy();
} else {
blitter_line_incy();
}
}
blitsign = 0 > bltapt_line;
bltstate = BLT_write;
}*/
function blitter_line_proc_fast() {
if (bltcon0 & 0x800) {
if (blitsign)
bltapt_line += blt_info.bltbmod;
else
bltapt_line += blt_info.bltamod;
}
if (!blitsign) {
if (bltcon1 & 0x10) {
if (bltcon1 & 0x8) {
bltcpt -= blt_info.bltcmod;
blitonedot = 0;
} else {
bltcpt += blt_info.bltcmod;
blitonedot = 0;
}
} else {
if (bltcon1 & 0x8) {
if (blinea_shift-- == 0) {
blinea_shift = 15;
bltcpt -= 2;
}
} else {
if (++blinea_shift == 16) {
blinea_shift = 0;
bltcpt += 2;
}
}
}
}
if (bltcon1 & 0x10) {
if (bltcon1 & 0x4) {
if (blinea_shift-- == 0) {
blinea_shift = 15;
bltcpt -= 2;
}
} else {
if (++blinea_shift == 16) {
blinea_shift = 0;
bltcpt += 2;
}
}
} else {
if (bltcon1 & 0x4) {
bltcpt -= blt_info.bltcmod;
blitonedot = 0;
} else {
bltcpt += blt_info.bltcmod;
blitonedot = 0;
}
}
blitsign = 0 > bltapt_line;
bltstate = BLT_write;
}
function blitter_nxline() {
blineb = ((blineb << 1) | (blineb >> 15)) & 0xffff;
blt_info.vblitsize--;
bltstate = BLT_read;
}
function actually_do_blit() {
if (blitline) {
bltapt_line = bltapt & 0xffff; if (bltapt_line & 0x8000) bltapt_line -= 0x10000;
do {
blitter_read();
if (ddat1use)
bltdpt = bltcpt;
ddat1use = 1;
blitter_line();
blitter_line_proc_fast();
blitter_nxline();
if (blitlinepixel) {
blitter_write();
blitlinepixel = 0;
}
if (blt_info.vblitsize <= 0)
bltstate = BLT_done;
} while (bltstate != BLT_done);
//bltapt_line = null;
bltdpt = bltcpt;
} else {
if (blitdesc)
blitter_dofast_desc();
else
blitter_dofast();
bltstate = BLT_done;
}
}
function blitter_do() {
actually_do_blit();
blitter_done(AMIGA.playfield.hpos());
}
/*---------------------------------*/
this.handler = function (data) {
if (!AMIGA.dmaen(DMAF_BLTEN)) {
AMIGA.events.newevent(EV2_BLITTER, 10, 0);
if (++blit_stuck < 20000 || !AMIGA.config.blitter.immediate)
return;
BUG.info('blitter_handler() force-unstuck!');
}
blit_stuck = 0;
if (blit_slowdown > 0 && !AMIGA.config.blitter.immediate) {
//console.log('Blitter.handler () slowdown', blit_slowdown);
AMIGA.events.newevent(EV2_BLITTER, blit_slowdown, 0);
blit_slowdown = -1;
return;
}
blitter_do();
};
var changetable = new Uint8Array(32 * 32); for (var i = 0; i < changetable.length; i++) changetable[i] = 0;
//var freezes = 10;
function blit_bltset(con) {
if (con & 2) {
blitdesc = bltcon1 & 2;
blt_info.blitbshift = bltcon1 >> 12;
blt_info.blitdownbshift = 16 - blt_info.blitbshift;
}
if (con & 1) {
blt_info.blitashift = bltcon0 >> 12;
blt_info.blitdownashift = 16 - blt_info.blitashift;
}
blit_ch = (bltcon0 & 0x0f00) >> 8;
blitline = (bltcon1 & 1) != 0;
blitfill = !!(bltcon1 & 0x18);
if (bltstate != BLT_done && blitline) {
blitline = 0;
bltstate = BLT_done;
blit_interrupt = true;
BUG.info('blit_bltset() register modification during linedraw! (%d)', bltstate);
}
if (blitline) {
if (blt_info.hblitsize != 2)
BUG.info('blit_bltset() weird hsize in linemode: %d vsize=%d', blt_info.hblitsize, blt_info.vblitsize);
blit_diag = blit_cycle_diagram_line;
} else {
if (con & 2) {
blitfc = !!(bltcon1 & 0x4);
blitife = !!(bltcon1 & 0x8);
if ((bltcon1 & 0x18) == 0x18) {
//BUG.info('blit_bltset() weird fill mode');
blitife = 0;
}
}
//if (blitfill && !blitdesc) BUG.info('blit_bltset() fill without desc');
blit_diag = blitfill && blit_cycle_diagram_fill[blit_ch][0] ? blit_cycle_diagram_fill[blit_ch] : blit_cycle_diagram[blit_ch];
}
if ((bltcon1 & 0x80) && (AMIGA.config.chipset.mask & CSMASK_ECS_AGNUS))
BUG.info('blit_bltset() ECS BLTCON1 DOFF-bit set');
// on the fly switching from CH=1 to CH=D -> blitter stops writing (Rampage/TEK)
// currently just switch to no-channels mode, better than crashing the demo..
if (bltstate != BLT_done) {
var o = original_ch + (original_fill ? 16 : 0);
var n = blit_ch + (blitfill ? 16 : 0);
if (o != n) {
if (changetable[o * 32 + n] < 10) {
changetable[o * 32 + n]++;
BUG.info('blit_bltset() channel mode changed while active (%02x->%02x)', o, n);
}
}
if (blit_ch == 13 && original_ch == 1)
blit_faulty = 1;
}
if (blit_faulty) {
BUG.info('blit_bltset() blitter faulty!');
blit_ch = 0;
blit_diag = blit_cycle_diagram[blit_ch];
}
blit_dmacount = blit_dmacount2 = 0;
blit_nod = 1;
for (var i = 0; i < blit_diag[0]; i++) {
var v = blit_diag[1 + blit_diag[0] + i];
if (v <= 4)
blit_dmacount++;
if (v > 0 && v < 4)
blit_dmacount2++;
if (v == 4)
blit_nod = 0;
}
}
function reset_blit(bltcon) {
if (bltcon & 1)
blinea_shift = bltcon0 >> 12;
if (bltcon & 2)
blitsign = (bltcon1 & 0x40) != 0;
if (bltstate == BLT_done)
return;
if (bltcon)
blit_bltset(bltcon);
}
var warned1 = 10;
function waitingblits() {
var waited = false;
while (bltstate != BLT_done && AMIGA.dmaen(DMAF_BLTEN)) {
waited = true;
AMIGA.events.cycle(8 * CYCLE_UNIT);
}
if (warned1 && waited) {
warned1--;
BUG.info('waiting_blits detected');
}
return bltstate == BLT_done;
}
function do_blitter(hpos, copper) {
var cycles;
var cleanstart = 0;
if (bltstate == BLT_done) {
if (blit_faulty > 0)
blit_faulty = 0;
cleanstart = 1;
}
blt_info.blitzero = 1;
blt_info.got_cycle = 0;
blit_firstline_cycles = blit_first_cycle = AMIGA.events.currcycle;
blit_last_cycle = 0;
last_blitter_hpos = hpos + 1;
blit_bltset(1 | 2);
ddat1use = ddat2use = 0;
blit_interrupt = false;
if (blitline) {
blinea = blt_info.bltadat;
blineb = ((blt_info.bltbdat >>> blt_info.blitbshift) | (blt_info.bltbdat << (16 - blt_info.blitbshift))) & 0xffff;
blitonedot = 0;
blitlinepixel = 0;
blitsing = (bltcon1 & 0x2) != 0;
cycles = blt_info.vblitsize;
} else {
blit_firstline_cycles = blit_first_cycle + (blit_diag[0] * blt_info.hblitsize + AMIGA.cpu.cycles) * CYCLE_UNIT;
cycles = blt_info.vblitsize * blt_info.hblitsize;
}
if (cleanstart) {
original_ch = blit_ch;
original_fill = blitfill;
original_line = blitline;
}
/*if (0) {
var ch = 0;
if (blit_ch & 1) ch++;
if (blit_ch & 2) ch++;
if (blit_ch & 4) ch++;
if (blit_ch & 8) ch++;
BUG.info('do_blitter2() %dx%d ch=%d %d*%d=%d d=%d f=%d n=%d l=%d dma=%04x %s',
blt_info.hblitsize, blt_info.vblitsize, ch, blit_diag[0], cycles, blit_diag[0] * cycles,
blitdesc ? 1 : 0, blitfill ? 1 : 0, AMIGA.dmaen(DMAF_BLTPRI) ? 1 : 0, blitline ? 1 : 0,
AMIGA.dmacon, AMIGA.dmaen(DMAF_BLTEN) ? 'on' : 'off!');
blitter_dump();
}*/
bltstate = BLT_init;
blit_slowdown = 0;
clr_special(SPCFLAG_BLTNASTY);
if (AMIGA.dmaen(DMAF_BLTPRI))
set_special(SPCFLAG_BLTNASTY);
if (AMIGA.dmaen(DMAF_BLTEN))
bltstate = BLT_work;
if (blt_info.vblitsize == 0 || (blitline && blt_info.hblitsize != 2)) {
blitter_done(hpos);
return;
}
blt_info.got_cycle = 1;
if (AMIGA.config.blitter.immediate) {
blitter_do();
return;
}
blit_cyclecounter = cycles * (blit_dmacount2 + (blit_nod ? 0 : 1));
AMIGA.events.newevent(EV2_BLITTER, blit_cyclecounter, 0);
if (AMIGA.dmaen(DMAF_BLTEN)) {
if (AMIGA.config.blitter.waiting) {
// wait immediately if all cycles in use and blitter nastry
if (blit_dmacount == blit_diag[0] && (AMIGA.spcflags & SPCFLAG_BLTNASTY))
waitingblits();
}
}
}
var warned2 = 10;
this.maybe_blit = function (hpos, hack) {
if (bltstate == BLT_done)
return;
if (AMIGA.dmaen(DMAF_BLTEN)) {
var doit = false;
if (AMIGA.config.blitter.waiting == 3) { // always
doit = true;
} else if (AMIGA.config.blitter.waiting == 2) { // no idle
if (blit_dmacount == blit_diag[0] && (AMIGA.spcflags & SPCFLAG_BLTNASTY))
doit = true;
} else if (AMIGA.config.blitter.waiting == 1) { // automatic
if (blit_dmacount == blit_diag[0] && (AMIGA.spcflags & SPCFLAG_BLTNASTY))
doit = true;
else if (AMIGA.config.cpu.speed < 0)
doit = true;
}
if (doit) {
if (waitingblits())
return;
}
}
if (warned2 && AMIGA.dmaen(DMAF_BLTEN) && blt_info.got_cycle) {
warned2--;
BUG.info('maybe_blit() program does not wait for blitter tc=%d', blit_cyclecounter);
}
if (hack == 1 && AMIGA.events.currcycle < blit_firstline_cycles)
return;
AMIGA.blitter.handler(0);
};
this.blitnasty = function () {
if (bltstate == BLT_done || !AMIGA.dmaen(DMAF_BLTEN))
return 0;
if (blit_last_cycle >= blit_diag[0] && blit_dmacount == blit_diag[0])
return 0;
var cycles = Math.floor((AMIGA.events.currcycle - blit_first_cycle) * CYCLE_UNIT_INV);
var ccnt = 0;
while (blit_last_cycle < cycles) {
if (!channel_state(blit_last_cycle++))
ccnt++;
}
return ccnt;
};
/*---------------------------------*/
var oddfstrt = 0, oddfstop = 0, ototal = 0, ofree = 0, slow = 0;
this.slowdown = function () {
var data = AMIGA.playfield.getData();
var ddfstrt = data[0];
var ddfstop = data[1];
var totalcycles = data[2];
var freecycles = data[3];
if (!totalcycles || ddfstrt < 0 || ddfstop < 0)
return;
if (ddfstrt != oddfstrt || ddfstop != oddfstop || totalcycles != ototal || ofree != freecycles) {
var linecycles = Math.floor(((ddfstop - ddfstrt + totalcycles - 1) / totalcycles) * totalcycles);
var freelinecycles = Math.floor(((ddfstop - ddfstrt + totalcycles - 1) / totalcycles) * freecycles);
var dmacycles = Math.floor((linecycles * blit_dmacount) / blit_diag[0]);
oddfstrt = ddfstrt;
oddfstop = ddfstop;
ototal = totalcycles;
ofree = freecycles;
slow = 0;
if (dmacycles > freelinecycles)
slow = dmacycles - freelinecycles;
}
if (blit_slowdown < 0 || blitline)
return;
blit_slowdown += slow;
};
/*---------------------------------*/
this.BLTADAT = function (hpos, v) {
this.maybe_blit(hpos, 0);
blt_info.bltadat = v;
};
this.BLTBDAT = function (hpos, v) {
this.maybe_blit(hpos, 0);
if (bltcon1 & 2)
blt_info.bltbhold = (v << (bltcon1 >> 12)) & 0xffff;
else
blt_info.bltbhold = (v >> (bltcon1 >> 12)) & 0xffff;
blt_info.bltbdat = v;
};
this.BLTCDAT = function (hpos, v) {
this.maybe_blit(hpos, 0);
blt_info.bltcdat = v;
reset_blit(0);
};
this.BLTAMOD = function (hpos, v) {
this.maybe_blit(hpos, 1);
blt_info.bltamod = castWord(v & 0xfffe);
reset_blit(0);
};
this.BLTBMOD = function (hpos, v) {
this.maybe_blit(hpos, 1);
blt_info.bltbmod = castWord(v & 0xfffe);
reset_blit(0);
};
this.BLTCMOD = function (hpos, v) {
this.maybe_blit(hpos, 1);
blt_info.bltcmod = castWord(v & 0xfffe);
reset_blit(0);
};
this.BLTDMOD = function (hpos, v) {
this.maybe_blit(hpos, 1);
blt_info.bltdmod = castWord(v & 0xfffe);
reset_blit(0);
};
this.BLTCON0 = function (hpos, v) {
this.maybe_blit(hpos, 2);
bltcon0 = v;
reset_blit(1);
};
this.BLTCON0L = function (hpos, v) {
if (!(AMIGA.config.chipset.mask & CSMASK_ECS_AGNUS)) return;
this.maybe_blit(hpos, 2);
bltcon0 = (bltcon0 & 0xFF00) | (v & 0xFF);
reset_blit(1);
};
this.BLTCON1 = function (hpos, v) {
this.maybe_blit(hpos, 2);
bltcon1 = v;
reset_blit(2);
};
this.BLTAFWM = function (hpos, v) {
this.maybe_blit(hpos, 2);
blt_info.bltafwm = v;
reset_blit(0);
};
this.BLTALWM = function (hpos, v) {
this.maybe_blit(hpos, 2);
blt_info.bltalwm = v;
reset_blit(0);
};
this.BLTAPTH = function (hpos, v) {
this.maybe_blit(hpos, 0);
bltapt = ((bltapt & 0xffff) | (v << 16)) >>> 0;
};
this.BLTAPTL = function (hpos, v) {
this.maybe_blit(hpos, 0);
bltapt = ((bltapt & ~0xffff) | (v & 0xfffe)) >>> 0;
};
this.BLTBPTH = function (hpos, v) {
this.maybe_blit(hpos, 0);
bltbpt = ((bltbpt & 0xffff) | (v << 16)) >>> 0;
};
this.BLTBPTL = function (hpos, v) {
this.maybe_blit(hpos, 0);
bltbpt = ((bltbpt & ~0xffff) | (v & 0xfffe)) >>> 0;
};
this.BLTCPTH = function (hpos, v) {
this.maybe_blit(hpos, 0);
bltcpt = ((bltcpt & 0xffff) | (v << 16)) >>> 0;
};
this.BLTCPTL = function (hpos, v) {
this.maybe_blit(hpos, 0);
bltcpt = ((bltcpt & ~0xffff) | (v & 0xfffe)) >>> 0;
};
this.BLTDPTH = function (hpos, v) {
this.maybe_blit(hpos, 0);
bltdpt = ((bltdpt & 0xffff) | (v << 16)) >>> 0;
};
this.BLTDPTL = function (hpos, v) {
this.maybe_blit(hpos, 0);
bltdpt = ((bltdpt & ~0xffff) | (v & 0xfffe)) >>> 0;
};
this.BLTSIZE = function (hpos, v) {
this.maybe_blit(hpos, 0);
blt_info.vblitsize = v >> 6;
blt_info.hblitsize = v & 0x3F;
if (!blt_info.vblitsize)
blt_info.vblitsize = 1024;
if (!blt_info.hblitsize)
blt_info.hblitsize = 64;
do_blitter(hpos, AMIGA.copper.access);
};
this.BLTSIZV = function (hpos, v) {
if (!(AMIGA.config.chipset.mask & CSMASK_ECS_AGNUS)) return;
this.maybe_blit(hpos, 0);
blt_info.vblitsize = v & 0x7FFF;
};
this.BLTSIZH = function (hpos, v) {
if (!(AMIGA.config.chipset.mask & CSMASK_ECS_AGNUS)) return;
this.maybe_blit(hpos, 0);
blt_info.hblitsize = v & 0x7FF;
if (!blt_info.vblitsize)
blt_info.vblitsize = 0x8000;
if (!blt_info.hblitsize)
blt_info.hblitsize = 0x0800;
do_blitter(hpos, AMIGA.copper.access);
};
/*---------------------------------*/
this.getState = function () {
return bltstate;
};
this.setState = function (s) {
bltstate = s;
};
this.getIntZero = function() {
return [blit_interrupt, blt_info.blitzero];
}
}
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