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more precise callee-saved register set

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This commit is contained in:
gbeauche 2006-01-16 21:31:41 +00:00
parent 12f103a83a
commit e534b07a70
1 changed files with 3 additions and 2 deletions
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5
BasiliskII/src/uae_cpu/compiler/codegen_x86.cpp
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@ -111,11 +111,12 @@ uae_u8 call_saved[]={0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0};
by pushing, even though they are "saved" across function calls
*/
#if defined(__x86_64__)
/* callee-saved registers as defined by Linux/x86_64 ABI: rbx, rbp, rsp, r12 - r15 */
/* callee-saved registers as defined by Linux AMD64 ABI: rbx, rbp, rsp, r12 - r15 */
/* preserve r11 because it's generally used to hold pointers to functions */
static const uae_u8 need_to_preserve[]={0,0,0,1,0,1,0,0,0,0,0,1,1,1,1,1};
#else
static const uae_u8 need_to_preserve[]={1,1,1,1,0,1,1,1};
/* callee-saved registers as defined by System V IA-32 ABI: edi, esi, ebx, ebp */
static const uae_u8 need_to_preserve[]={0,0,0,1,0,1,1,1};
#endif
/* Whether classes of instructions do or don't clobber the native flags */