Call a function: Difference between revisions
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Due to assembler, argument are passed by reference.<br> |
Due to assembler, argument are passed by reference.<br> |
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With: |
With: |
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<lang 360asm> |
<lang 360asm>X DS F |
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X DS F |
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Y DS F |
Y DS F |
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Z DS F |
Z DS F</lang> |
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</lang> |
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If you do not want to use the CALL macro instruction and for a link-edited object-module: |
If you do not want to use the CALL macro instruction and for a link-edited object-module: |
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<lang 360asm> |
<lang 360asm> L R15,=V(MULTPLIC) |
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L R15,=V(MULTPLIC) |
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LA R1,PARMLIST address of the paramter list |
LA R1,PARMLIST address of the paramter list |
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BALR R14,R15 branch and link |
BALR R14,R15 branch and link |
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* ... |
* ... |
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PARMLIST DC A(X) |
PARMLIST DC A(X) |
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DC A(Y) |
DC A(Y)</lang> |
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</lang> |
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If you call a link-edited object-module: |
If you call a link-edited object-module: |
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<lang 360asm> |
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ST R0,Z Z=MULTPLIC(X,Y)</lang> |
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</lang> |
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If you call an load-module at execution time: |
If you call an load-module at execution time: |
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<lang 360asm> |
<lang 360asm> LOAD EP=MULTPLIC load load-module |
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LOAD EP=MULTPLIC load load-module |
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LR R15,R0 retrieve entry address |
LR R15,R0 retrieve entry address |
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CALL (R15),(X,Y) call MULTPLIC(X,Y) |
CALL (R15),(X,Y) call MULTPLIC(X,Y) |
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ST R0,Z Z=MULTPLIC(X,Y) |
ST R0,Z Z=MULTPLIC(X,Y)</lang> |
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</lang> |
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=={{header|ActionScript}}== |
=={{header|ActionScript}}== |
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