Create an object at a given address: Difference between revisions
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It should be noted that on the 6502 processor hardware is normally memory mapped, so this is often used for manipulating hardware. |
It should be noted that on the 6502 processor hardware is normally memory mapped, so this is often used for manipulating hardware. |
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=={{header|68000 Assembly}}== |
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First, an integer object will be created at address $100000: |
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<lang 68000devpac>MOVE.L #$12345678,$100000</lang> |
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Finding the address of a given object isn't actually possible in the same way it would be on [[C]], since anything loaded from an address is just a numeric copy and is not actually related in any way to the "object." The closest way is to label a memory address and load that label as a numeric constant. |
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<lang 68000devpac>myVariable equ $100000 |
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MOVE.L #myVariable,D0 |
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JSR printLong ;some unimplemented printing routine.</lang> |
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Creating a new object at that location is as simple as storing a new value there. |
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<lang 68000devpac>MOVE.L #$FFFFFFFF,myVariable</lang> |
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=={{header|Ada}}== |
=={{header|Ada}}== |
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