factor/vm/cpu-x86.64.S

39 lines
943 B
ArmAsm

#include "asm.h"
#define ARG0 %rdi
#define ARG1 %rsi
#define XT_REG %rcx
#define STACK_REG %rsp
#define DS_REG %r14
#define RETURN_REG %rax
#define CELL_SIZE 8
#define PUSH_NONVOLATILE \
push %rbx ; \
push %rbp ; \
push %r12 ; \
push %r13 ;
#define POP_NONVOLATILE \
pop %r13 ; \
pop %r12 ; \
pop %rbp ; \
pop %rbx
#define QUOT_XT_OFFSET 21
#define PROFILING_OFFSET 53
#define WORD_DEF_OFFSET 29
#define WORD_XT_OFFSET 61
/* We pass a function pointer to memcpy to work around a Mac OS X
ABI limitation which would otherwise require us to do a bizzaro PC-relative
trampoline to retrieve the function address */
DEF(void,set_callstack,(F_STACK_FRAME *to, F_STACK_FRAME *from, CELL length, void *memcpy)):
sub %rdx,%rdi /* compute new stack pointer */
mov %rdi,%rsp
call *%rcx /* call memcpy */
ret /* return _with new stack_ */
#include "cpu-x86.S"