On 9/27/2012 8:22 AM, J. Vernet wrote:
Le 26/09/2012 15:48, David Schmidt a �crit :On 9/26/2012 9:32 AM, Tempest wrote:The IIc+ automatically starts in 4MHz mode; holding down escape during boot will start in 1MHz. If you make an image of the disk, we can try it in an emulator, speed it up, and see...
Is there a way to change the speed via POKE&PEEK on a //c+, or software, like with a ZIPChip on IIe ?
It works the same as a ZipChip, because that's what it really is. lda #$5a sta $c05a sta $c05a sta $c05a sta $c05a ; Unlock ZipChip lda #$00 sta $c05a ; Disable ZipChip [do slow stuff] lda #$00 sta $c05b ; Enable ZipChip lda #$a5 sta $c05a ; Lock ZipChip