Category:68000 Assembly: Difference between revisions
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Puppydrum64 (talk | contribs) m (→Traps) |
Puppydrum64 (talk | contribs) m (→Traps) |
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Certain traps have specific meanings as defined by the 68000 itself: |
Certain traps have specific meanings as defined by the 68000 itself: |
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* Trap 4 occurs if the <code>ILLEGAL</code> command is executed. This is similar to <code>BRK</code> on [[6502 Assembly]]. If you're programming on a system or emulator with no built-in debugger, it's a handy way of seeing if execution is arriving at a certain point. If Trap 4 is pointed to a system reset or a hexdump routine you created |
* Trap 4 occurs if the <code>ILLEGAL</code> command is executed. This is similar to <code>BRK</code> on [[6502 Assembly]]. If you're programming on a system or emulator with no built-in debugger, it's a handy way of seeing if execution is arriving at a certain point. If Trap 4 is pointed to a system reset or a hexdump routine you created, you'll know in an instant if the code before it is bugged. This (admittedly contrived) example will show the basic concept. |
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<lang 68000devpac>;trying to see if this routine works properly |
<lang 68000devpac>;trying to see if this routine works properly |
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TestRoutine: |
TestRoutine: |
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