72 lines
1.3 KiB
ArmAsm
72 lines
1.3 KiB
ArmAsm
#include "asm.h"
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#define STACK_REG %rsp
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#define DS_REG %r14
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#define RETURN_REG %rax
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#define CELL_SIZE 8
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#define STACK_PADDING 56
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#define NV_TEMP_REG %rbp
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#ifdef WINDOWS
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#define ARG0 %rcx
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#define ARG1 %rdx
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#define ARG2 %r8
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#define ARG3 %r9
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#define PUSH_NONVOLATILE \
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push %r12 ; \
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push %r13 ; \
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push %rdi ; \
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push %rsi ; \
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push %rbx ; \
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push %rbp ; \
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push %rbp
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#define POP_NONVOLATILE \
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pop %rbp ; \
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pop %rbp ; \
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pop %rbx ; \
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pop %rsi ; \
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pop %rdi ; \
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pop %r13 ; \
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pop %r12
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#else
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#define ARG0 %rdi
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#define ARG1 %rsi
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#define ARG2 %rdx
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#define ARG3 %rcx
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#define PUSH_NONVOLATILE \
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push %rbx ; \
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push %rbp ; \
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push %r12 ; \
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push %r13 ; \
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push %r13
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#define POP_NONVOLATILE \
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pop %r13 ; \
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pop %r13 ; \
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pop %r12 ; \
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pop %rbp ; \
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pop %rbx
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#endif
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#define QUOT_XT_OFFSET 21
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/* We pass a function pointer to memcpy to work around a Mac OS X
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ABI limitation which would otherwise require us to do a bizzaro PC-relative
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trampoline to retrieve the function address */
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DEF(void,set_callstack,(F_STACK_FRAME *to, F_STACK_FRAME *from, CELL length, void *memcpy)):
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sub ARG2,ARG0 /* compute new stack pointer */
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mov ARG0,%rsp
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call *ARG3 /* call memcpy */
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ret /* return _with new stack_ */
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#include "cpu-x86.S"
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