64 lines
1.6 KiB
ArmAsm
Executable File
64 lines
1.6 KiB
ArmAsm
Executable File
#include "asm.h"
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/* Note that primitive word definitions are compiled with
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__attribute__((regparm 2), so the pointer to the word object is passed in EAX,
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and the callstack top is passed in EDX */
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#define ARG0 %eax
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#define ARG1 %edx
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#define STACK_REG %esp
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#define DS_REG %esi
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#define RETURN_REG %eax
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#define NV_TEMP_REG %ebx
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#define CELL_SIZE 4
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#define STACK_PADDING 12
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#define PUSH_NONVOLATILE \
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push %ebx ; \
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push %ebp ; \
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push %ebp
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#define POP_NONVOLATILE \
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pop %ebp ; \
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pop %ebp ; \
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pop %ebx
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#define QUOT_XT_OFFSET 9
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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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mov 4(%esp),%ebp /* to */
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mov 8(%esp),%edx /* from */
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mov 12(%esp),%ecx /* length */
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mov 16(%esp),%eax /* memcpy */
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sub %ecx,%ebp /* compute new stack pointer */
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mov %ebp,%esp
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push %ecx /* pass length */
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push %edx /* pass src */
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push %ebp /* pass dst */
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call *%eax /* call memcpy */
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add $12,%esp /* pop args from the stack */
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ret /* return _with new stack_ */
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/* cpu.x86.32 calls this */
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DEF(bool,check_sse2,(void)):
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push %ebx
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mov $1,%eax
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cpuid
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shr $26,%edx
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and $1,%edx
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pop %ebx
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mov %edx,%eax
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ret
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#include "cpu-x86.S"
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#ifdef WINDOWS
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.section .drectve
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.ascii " -export:check_sse2"
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#endif
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