A82: OP1, OP2, etc... questions


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A82: OP1, OP2, etc... questions



Which of the following are 'legal'?

ld OP1,a
ld a,OP1
add OP1,26
dec OP1
ld OP2,HL
ld HL,OP2
ld OP1,OP2
ld OP1,(score)
ld (score),OP1
ld OP1,2

Please mark which ones work and which ones don't. And if they don't how 
can it work.