Started by SerErris, 11:13, 19 November 22
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Quote from: SerErris on 18:44, 19 November 22The difference is the following:The hardware uses two address bits and XORs it with two data bits from the EPROM to actually generate the correct output to the CPC. CPC_D5 = A2 XOR D5CPC_D3 = A5 XOR D3
vdos_init: call 0b912h ;c1e9 cd 12 b9 . . . or a ;c1ec b7 . jp z,cpm ;c1ed ca 44 c3 . D . defb 0fdh,0edh,0ddh ;illegal sequence ;c1f0 fd ed dd . . . push hl ;c1f3 e5 . ld hl,(0b1b8h) ;c1f4 2a b8 b1 * . . ld e,a ;c1f7 5f _ ld a,h ;c1f8 7c | ...
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