77 lines
1.3 KiB
PHP
77 lines
1.3 KiB
PHP
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; Windows x64 prologue macro
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;
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; prologue name, register list, stack space
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;
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; name: routine name
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; register list: comma separated list of registers to save
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; stack space: stack space needed in 8 byte units
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; Windows x64 epilogue macro
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;
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; epilogue register list, stack space
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;
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; register list: comma separated list of registers to save
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; in same order used in prologue
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; stack space: stack space used in 8 byte units
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%ifdef _WIN64_ABI
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%macro prologue 1-*
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PROC_FRAME %1
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%rotate 1
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%rep %0 - 2
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push_reg %1
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%rotate 1
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%endrep
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%if ((%0 + %1) & 1) == 0
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alloc_stack 8 * (%1 + 1)
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%elif %1 > 0
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alloc_stack 8 * %1
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%endif
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END_PROLOGUE
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%endmacro
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%macro epilogue 1-*
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%rotate -1
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%if (%0 + %1) & 1
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add rsp, 8 * (%1 + 1)
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%else
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add rsp, 8 * %1 ; is this needed if %1 == 0 ?
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%endif
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%rep %0 - 1
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%rotate -1
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pop %1
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%endrep
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ret
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ENDPROC_FRAME
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%endmacro
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%else
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%macro prologue 1-*
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%1:
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%rotate 1
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%rep %0 - 2
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push %1
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%rotate 1
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%endrep
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%if %1 > 0
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sub rsp, 8 * %1
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%endif
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%endmacro
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%macro epilogue 1-*
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%rotate -1
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%if %1 > 0
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add rsp, 8 * %1
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%endif
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%rep %0 - 1
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%rotate -1
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pop %1
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%endrep
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ret
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%endmacro
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%endif
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