114 lines
2.3 KiB
ArmAsm
114 lines
2.3 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 NV0 %rbp
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#define NV1 %r12
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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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#define POP_NONVOLATILE \
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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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#define POP_NONVOLATILE \
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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 28
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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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DEF(F_FASTCALL void,throw_impl,(CELL quot, F_STACK_FRAME *rewind_to, void *vm)):
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/* clear x87 stack, but preserve rounding mode and exception flags */
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sub $2,STACK_REG
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fnstcw (STACK_REG)
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fninit
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fldcw (STACK_REG)
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/* rewind_to */
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mov ARG1,STACK_REG
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mov ARG2,ARG1 /* make vm ptr 2nd arg in case quot_xt = lazy_jit_compile */
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jmp *QUOT_XT_OFFSET(ARG0)
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DEF(F_FASTCALL void,lazy_jit_compile,(CELL quot, void *vm)):
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mov ARG1,ARG2 /* vm is 3rd arg */
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mov STACK_REG,ARG1 /* Save stack pointer */
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sub $STACK_PADDING,STACK_REG
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call MANGLE(lazy_jit_compile_impl)
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mov RETURN_REG,ARG0 /* No-op on 32-bit */
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add $STACK_PADDING,STACK_REG
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jmp *QUOT_XT_OFFSET(ARG0) /* Call the quotation */
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DEF(long long,read_timestamp_counter,(void)):
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mov $0,%rax
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rdtsc
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shl $32,%rdx
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or %rdx,%rax
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ret
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DEF(void,get_sse_env,(void*)):
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stmxcsr (%rdi)
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ret
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DEF(void,set_sse_env,(const void*)):
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ldmxcsr (%rdi)
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ret
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DEF(void,get_x87_env,(void*)):
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fnstsw (%rdi)
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fnstcw 2(%rdi)
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ret
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DEF(void,set_x87_env,(const void*)):
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fnclex
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fldcw 2(%rdi)
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ret
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#include "cpu-x86.S"
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