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m6800/m6802 instruction set
Test Accumulator
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Test Accumulator
MemonicMode OpcodeCyclesBytes
TSTA Inherent 4D 2 1
TSTB Inherent 5D 2 1


A - 0
B - 0

Results:
H not affected
N set if bit 7 is 1
Z set if all bits are 0
V set to zero
C set to zero
MC6802 - instruction set - Test Accumulator
MC6802 - instruction set - logic shift right memory
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filename:microprocessors - MC6800/MC6802 - instruction set - Test Accumulator
filename:microprocessors%20%2D%20MC6800%2FMC6802%20%2D%20instruction%20set%20%2D%20Test%20Accumulator
last edit:February 06 2010 14:17:52 (5493 days ago)
ct = 1740080325.000000 = February 20 2025 14:38:45
ft = 1265483872.000000 = February 06 2010 14:17:52
dt = 474596453.000000