2007-09-21 22:56:01 -04:00
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#include "asm.h"
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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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2007-09-22 00:44:27 -04:00
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#define DS_REG %esi
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2007-09-26 00:34:37 -04:00
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#define RETURN_REG %eax
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2007-09-21 22:56:01 -04:00
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2008-11-08 22:06:51 -05:00
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#define NV_TEMP_REG %ebx
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2008-11-08 21:32:23 -05:00
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2008-11-26 05:22:39 -05:00
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#define ARITH_TEMP_1 %ebp
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#define ARITH_TEMP_2 %ebx
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#define DIV_RESULT %eax
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2007-09-21 22:56:01 -04:00
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#define CELL_SIZE 4
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2008-11-07 21:33:32 -05:00
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#define STACK_PADDING 12
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2007-09-21 22:56:01 -04:00
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#define PUSH_NONVOLATILE \
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2007-09-22 00:44:27 -04:00
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push %ebx ; \
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2008-11-08 21:32:23 -05:00
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push %ebp ; \
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2007-09-21 22:56:01 -04:00
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push %ebp
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#define POP_NONVOLATILE \
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2008-11-08 21:32:23 -05:00
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pop %ebp ; \
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2007-09-22 00:44:27 -04:00
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pop %ebp ; \
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2007-09-21 22:56:01 -04:00
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pop %ebx
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2009-05-12 04:09:15 -04:00
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#define QUOT_XT_OFFSET 12
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2007-09-21 22:56:01 -04:00
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2007-09-22 02:28:49 -04:00
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/* We pass a function pointer to memcpy to work around a Mac OS X
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2007-09-21 22:56:01 -04:00
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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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2008-10-20 06:56:39 -04:00
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/* cpu.x86.32 calls this */
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2008-11-03 08:27:14 -05:00
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DEF(bool,check_sse2,(void)):
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2008-10-20 06:56:39 -04:00
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push %ebx
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2008-10-31 22:07:41 -04:00
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mov $1,%eax
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2008-10-20 06:56:39 -04:00
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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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2009-05-31 16:02:14 -04:00
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DEF(long long,read_timestamp_counter,(void)):
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rdtsc
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ret
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2009-05-07 13:33:31 -04:00
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DEF(void,primitive_inline_cache_miss,(void)):
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2009-05-06 20:22:22 -04:00
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mov (%esp),%ebx
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2009-05-07 13:33:31 -04:00
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DEF(void,primitive_inline_cache_miss_tail,(void)):
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2009-04-28 17:58:38 -04:00
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sub $8,%esp
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2009-05-06 20:22:22 -04:00
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push %ebx
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2009-04-28 17:58:38 -04:00
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call MANGLE(inline_cache_miss)
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add $12,%esp
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2009-04-29 00:05:18 -04:00
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jmp *%eax
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2009-04-28 17:58:38 -04:00
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2009-09-05 20:48:13 -04:00
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DEF(unsigned,get_fp_control_register,(void)):
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push %eax
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stmxcsr (%esp)
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pop %eax
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ret
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DEF(void,set_fp_control_register,(unsigned reg)):
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ldmxcsr 4(%esp)
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ret
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2007-09-21 22:56:01 -04:00
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#include "cpu-x86.S"
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2008-11-04 01:04:18 -05:00
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#ifdef WINDOWS
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.section .drectve
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.ascii " -export:check_sse2"
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2009-05-31 16:16:40 -04:00
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.ascii " -export:read_timestamp_counter"
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2008-11-04 01:04:18 -05:00
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#endif
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