Posted By
SVS
on 2022-08-28
07:18:48
 |  Re: Plus/4 $FF28 Bug (TEDMON Bug?)
Levente said, in the time, that if $79 was not $00, the routine $CD57 does execute:
LDA #$28
STA ($7A),Y (Y=$28)
LDA #$FF
INY
STA ($7A),Y (Y=$29)
Then it is clear that the value staying on $7A,$7B is $3030 (in fact $3030+$28=$3058 that is the address where the bug appears. This confirms what Ulysses says.
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