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Refs #75. Use ffreep opcode directly. Please check out http://www.sandpile.org/x86/opc_fpu.htm .

This commit is contained in:
Xianyi Zhang 2012-05-30 20:25:01 +08:00
parent cfc2940412
commit a4daa34db7
2 changed files with 9 additions and 0 deletions
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5
common_x86.h
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@ -356,4 +356,9 @@ REALNAME:
#ifndef ALIGN_6 #ifndef ALIGN_6
#define ALIGN_6 .align 64 #define ALIGN_6 .align 64
// ffreep %st(0).
// Because Clang didn't support ffreep, we directly use the opcode.
// Please check out http://www.sandpile.org/x86/opc_fpu.htm
#define ffreep .byte 0xdf, 0xc0 #
#endif #endif

4
common_x86_64.h
View File

@ -448,4 +448,8 @@ REALNAME:
#define ALIGN_6 .align 64 #define ALIGN_6 .align 64
#endif #endif
// ffreep %st(0).
// Because Clang didn't support ffreep, we directly use the opcode.
// Please check out http://www.sandpile.org/x86/opc_fpu.htm
#define ffreep .byte 0xdf, 0xc0 #
#endif #endif