mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-07-08 12:18:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Fold LIBC_BITS into LIBC_INTRIN

Browse source
This commit is contained in:
Justine Tunney 2022-08-11 12:13:18 -07:00
parent 625aa365f1
commit 05b8f82371
603 changed files with 1071 additions and 1211 deletions
Download patch file Download diff file Expand all files Collapse all files

34
libc/intrin/asmflag.h Normal file
View file

@ -0,0 +1,34 @@
#ifndef COSMOPOLITAN_LIBC_BITS_ASMFLAG_H_
#define COSMOPOLITAN_LIBC_BITS_ASMFLAG_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
/*
* Constraints for virtual machine flags.
* @note we beseech clang devs for flag constraints
*/
#ifdef __GCC_ASM_FLAG_OUTPUTS__ /* GCC6+ CLANG10+ */
#define CFLAG_CONSTRAINT "=@ccc"
#define CFLAG_ASM(OP) OP
#define ZFLAG_CONSTRAINT "=@ccz"
#define ZFLAG_ASM(OP) OP
#define OFLAG_CONSTRAINT "=@cco"
#define OFLAG_ASM(OP) OP
#define SFLAG_CONSTRAINT "=@ccs"
#define SFLAG_ASM(SP) SP
#define ABOVE_CONSTRAINT "=@cca" /* i.e. !ZF && !CF */
#define ABOVEFLAG_ASM(OP) OP
#else
#define CFLAG_CONSTRAINT "=q"
#define CFLAG_ASM(OP) OP "\n\tsetc\t%b0"
#define ZFLAG_CONSTRAINT "=q"
#define ZFLAG_ASM(OP) OP "\n\tsetz\t%b0"
#define OFLAG_CONSTRAINT "=q"
#define OFLAG_ASM(OP) OP "\n\tseto\t%b0"
#define SFLAG_CONSTRAINT "=q"
#define SFLAG_ASM(SP) OP "\n\tsets\t%b0"
#define ABOVE_CONSTRAINT "=@cca"
#define ABOVEFLAG_ASM(OP) OP "\n\tseta\t%b0"
#endif
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_BITS_ASMFLAG_H_ */