Posted By
bubis on 2012-10-17 09:01:51
| Re: +4 biggest screen resolution
@Bionic: Probably you can easily answer that question if you run the same code in Yape or Plus4Emu.
BTW, this is your pal interlace code disassembled:
* = $5000 SEI STA $FF3F LDA #lo(irq0) STA $FFFE LDA #hi(irq0) STA $FFFF LDA #$02 STA $FF0A LDA #$FA STA $FF0B CLI JMP * irq0: PHA LDA $FF1E LSR A AND #$07 STA reljump reljump = *+1 BPL * LDA #$A9 LDA #$A9 LDA #$A9 BIT $EA LDA #$54 STA $FF1E LDA #$05 STA $E8 TXA l1: LDX #$14 l2: DEX BNE l2 DEC $E8 BNE l1 TAX LDA #$CA STA $FF1E LDA #lo(irq1) STA $FFFE LSR $FF09 LDA #$61 STA $FF15 PLA RTI
irq1: PHA LDA #lo(irq0) STA $FFFE LSR $FF09 LDA #$71 STA $FF15 PLA RTI
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