SpinAsm OR and SpinAsm XOR: Difference between pages
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== | ==XOR== | ||
{| class="wikitable" | {| class="wikitable" | ||
|+ | |+ | ||
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!Instruction coding | !Instruction coding | ||
|- | |- | ||
| | |XOR | ||
| | |ACC ^ MASK | ||
| | |MMMMMMMMMMMMMMMMMMMMMMMM000010000 | ||
|} | |} | ||
======Description====== | ======Description====== | ||
XOR will perform a bit wise "xor" of the current ACC and the 24bit MASK specified within the instruction word. The instruction will invert ACC provided MASK equals $FFFFFF. (see also the pseudo opcode section) | |||
{| class="wikitable" | {| class="wikitable" | ||
|+Parameters | |+Parameters | ||
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======Syntax====== | ======Syntax====== | ||
XOR M | |||
======Coding Example====== | ======Coding Example====== | ||
<syntaxhighlight line="1"> | <syntaxhighlight line="1"> | ||
XMASK EQU $AAAAAA ; | |||
; | ; | ||
;------------------------------------------- | ;------------------------------------------- | ||
sof 0,0 ; Clear all bits within ACC | sof 0,0 ; Clear all bits within ACC | ||
xor $0 ; Set all ACC bits | |||
xor %01010101_01010101_01010101 ; Invert all even numbered bits | |||
xor XMASK ; Invert all odd numbered bits | |||
</syntaxhighlight> | </syntaxhighlight> |
Revision as of 20:54, 6 January 2023
XOR
Mnemonic | Operation | Instruction coding |
---|---|---|
XOR | ACC ^ MASK | MMMMMMMMMMMMMMMMMMMMMMMM000010000 |
Description
XOR will perform a bit wise "xor" of the current ACC and the 24bit MASK specified within the instruction word. The instruction will invert ACC provided MASK equals $FFFFFF. (see also the pseudo opcode section)
Name | Width | Entry formats, range |
---|---|---|
M | 24 Bit | Binary
Hex ($000000 - $FFFFFF) Symbolic |
Syntax
XOR M
Coding Example
XMASK EQU $AAAAAA ;
;
;-------------------------------------------
sof 0,0 ; Clear all bits within ACC
xor $0 ; Set all ACC bits
xor %01010101_01010101_01010101 ; Invert all even numbered bits
xor XMASK ; Invert all odd numbered bits