diff options
Diffstat (limited to 'libc/sysdeps/linux/arc/asm.h')
| -rw-r--r-- | libc/sysdeps/linux/arc/asm.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/arc/asm.h b/libc/sysdeps/linux/arc/asm.h new file mode 100644 index 000000000..f83075ea1 --- /dev/null +++ b/libc/sysdeps/linux/arc/asm.h @@ -0,0 +1,91 @@ +/* + * Copyright (C) 2022, Synopsys, Inc. (www.synopsys.com) + * + * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball. + */ + +#ifndef _ARC_ASM_H +#define _ARC_ASM_H + +/* + * Some 16-bit instructions were excluded from the ARCv3 ISA + * the following macros are introduced to handle these changes in one place. + * This will allow not to change existing ARCv2 code and use 16-bit versions + * of instructions for ARCv2 and replace them with 32-bit vesrions for ARCv3 + */ + +#if defined (__ARC64_ARCH32__) + +.macro PUSHR reg + push \reg +.endm + +.macro PUSHR_S reg + push \reg +.endm + +.macro POPR reg + pop \reg +.endm + +.macro POPR_S reg + pop \reg +.endm + +.macro SUBR_S dst,src1,src2 + sub \dst, \src1, \src2 +.endm + +.macro ADDR_S dst,src1,src2 + add \dst, \src1, \src2 +.endm + +.macro ASRR_S dst,src1,src2 + asr \dst, \src1, \src2 +.endm + +.macro ASLR_S dst,src1,src2 + asl \dst, \src1, \src2 +.endm + +#elif defined (__ARC64_ARCH64__) + +# error ARCv3 64-bit is not supported by uClibc-ng + +#else /* ARCHS || ARC700 */ + +.macro PUSHR reg + push \reg +.endm + +.macro PUSHR_S reg + push_s \reg +.endm + +.macro POPR reg + pop \reg +.endm + +.macro POPR_S reg + pop_s \reg +.endm + +.macro SUBR_S dst,src1,src2 + sub_s \dst, \src1, \src2 +.endm + +.macro ADDR_S dst,src1,src2 + add_s \dst, \src1, \src2 +.endm + +.macro ASRR_S dst,src1,src2 + asr_s \dst, \src1, \src2 +.endm + +.macro ASLR_S dst,src1,src2 + asl_s \dst, \src1, \src2 +.endm + +#endif + +#endif /* _ARC_ASM_H */ |