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asm context issue?
#3
Ugh.

Looks like my reference may be incorrect:

Code:
SUB A,imm8
Operation Subtracts the immediate value from A.
Op Code 11010110 : [imm8]
Flags S Z H C are affected as defined
P/V detects overflow
N is set
T States 7

You're right. It looks like Zilog officially use SUB N - which is inconsistent with all their other instructions! How bizarre!
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