Bitwise operations: Difference between revisions
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Puppydrum64 (talk | contribs) (→{{header|68000 Assembly}}: also revised 6502 example) |
Puppydrum64 (talk | contribs) m (→{{header|6502 Assembly}}: forgot a # on an immediate operand) |
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;NOT |
;NOT |
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<lang 6502asm>LDA #$08 |
<lang 6502asm>LDA #$08 |
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EOR 255</lang> |
EOR #255</lang> |
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The 6502 doesn't have arithmetic shift right, but it can be replicated, provided the negative flag is set according to the value in the accumulator. |
The 6502 doesn't have arithmetic shift right, but it can be replicated, provided the negative flag is set according to the value in the accumulator. |
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<lang 6502asm>LDA #$01 |
<lang 6502asm>LDA #$01 |
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ROR ;if the carry was set prior to the ROR, A = 0x80. If clear, A = 0.</lang> |
ROR ;if the carry was set prior to the ROR, A = 0x80. If clear, A = 0.</lang> |
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=={{header|68000 Assembly}}== |
=={{header|68000 Assembly}}== |
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