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7800: tweaks to debug info

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This commit is contained in:
Steven Hugg 2023-07-12 16:37:29 -05:00
parent d4b8473b86
commit b131d29663
1 changed files with 5 additions and 9 deletions
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14
src/machine/atari7800.ts
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@ -676,6 +676,7 @@ export class Atari7800 extends BasicMachine implements RasterFrameBased {
let dlhi = dlstart & 0xff00;
let dlofs = dlstart & 0xff;
do {
const ctrlreg = this.maria.regs[0x1c];
// read DL entry
let b0 = this.readConst(dlhi + ((dlofs+0) & 0x1ff));
let b1 = this.readConst(dlhi + ((dlofs+1) & 0x1ff));
@ -686,30 +687,25 @@ export class Atari7800 extends BasicMachine implements RasterFrameBased {
// extended header?
let indirect = false;
let description = "";
const grmode = (ctrlreg & 0x3) + ((b1 & 0x80) ? 4 : 0);
if ((b1 & 31) == 0) {
var pal = b3 >> 5;
var width = 32 - (b3 & 31);
var xpos = this.readConst(dlhi + ((dlofs+4) & 0x1ff));
var writemode = b1 & 0x80;
indirect = (b1 & 0x20) != 0;
dlofs += 5;
description += "X=" + xpos + " W=" + width + " P=" + pal + " " + (writemode?"WRITE":"");
} else {
// direct mode
var xpos = b3;
var pal = b1 >> 5;
var width = 32 - (b1 & 31);
var writemode = 0;
dlofs += 4;
description += "X=" + xpos + " W=" + width + " P=" + pal;
}
let gfxadr = b0 + (((b2 + (indirect?0:this.maria.offset)) & 0xff) << 8);
let readmode = (this.maria.regs[0x1c] & 0x3) + (writemode?4:0);
let dbl = indirect && (this.maria.regs[0x1c] & 0x10) != 0;
if (readmode) description += " READMODE=" + readmode;
if (dbl) description += " DBL";
description += "X=" + xpos + " W=" + width + " P=" + pal;
if (indirect) description += " CHR=$" + hex((this.maria.regs[0x14] + this.maria.offset) & 0xff) + "xx";
let gfxadr = b0 + (((b2 + (indirect?0:this.maria.offset)) & 0xff) << 8);
description = " $" + hex(gfxadr,4) + " " + description;
description = ["160A","?","320D","320A","160B","?","320B","320C"][grmode] + ' ' + description;
display_list.push(description);
} while (dlofs < 0x200);
return display_list;