Gotchas: Difference between revisions
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Puppydrum64 (talk | contribs) |
Puppydrum64 (talk | contribs) |
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MOVE.W #$7FFF,D0 ;D0 = $12347FFF |
MOVE.W #$7FFF,D0 ;D0 = $12347FFF |
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ADD.W #1,D0 ;D0 = $12348000 |
ADD.W #1,D0 ;D0 = $12348000 |
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TRAPV ;the above operation set the overflow flag, so this instruction will call the signed overflow handler. |
TRAPV ;the above operation set the overflow flag, so this instruction will call the signed overflow handler. |
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;Even though the entire register didn't overflow, the portion we were operating on did, so that counts.</lang> |
;Even though the entire register didn't overflow, the portion we were operating on did, so that counts.</lang> |
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