tas
Test and set an operand
Tests a byte to set the condition codes, then sets its top bit.
Size .b
XNZVC –●●00
- ● set from the result
- 0 always 0
- – not changed
Forms
Operands
<ea>- An operand using one of the instruction’s supported addressing modes, such as
d0,(a0)+or4(a1). It may name a register, memory or an immediate value. More