Ask for help and support on things not being bugs. Help on how to program with ZX Basic, etc. Please, READ the How-To & Tutorials forum and Wiki before asking here: your question might already be answered.
Looks like my reference may be incorrect:
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!
Who is online
Users browsing this forum: No registered users and 1 guest