diff options
Diffstat (limited to 'qemu/target-arm/op_addsub.h')
| -rw-r--r-- | qemu/target-arm/op_addsub.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/qemu/target-arm/op_addsub.h b/qemu/target-arm/op_addsub.h new file mode 100644 index 000000000..ca4a1893c --- /dev/null +++ b/qemu/target-arm/op_addsub.h @@ -0,0 +1,103 @@ +/* + * ARMv6 integer SIMD operations. + * + * Copyright (c) 2007 CodeSourcery. + * Written by Paul Brook + * + * This code is licensed under the GPL. + */ + +#ifdef ARITH_GE +#define GE_ARG , void *gep +#define DECLARE_GE uint32_t ge = 0 +#define SET_GE *(uint32_t *)gep = ge +#else +#define GE_ARG +#define DECLARE_GE do{}while(0) +#define SET_GE do{}while(0) +#endif + +#define RESULT(val, n, width) \ + res |= ((uint32_t)(glue(glue(uint,width),_t))(val)) << (n * width) + +uint32_t HELPER(glue(PFX,add16))(uint32_t a, uint32_t b GE_ARG) +{ + uint32_t res = 0; + DECLARE_GE; + + ADD16(a, b, 0); + ADD16(a >> 16, b >> 16, 1); + SET_GE; + return res; +} + +uint32_t HELPER(glue(PFX,add8))(uint32_t a, uint32_t b GE_ARG) +{ + uint32_t res = 0; + DECLARE_GE; + + ADD8(a, b, 0); + ADD8(a >> 8, b >> 8, 1); + ADD8(a >> 16, b >> 16, 2); + ADD8(a >> 24, b >> 24, 3); + SET_GE; + return res; +} + +uint32_t HELPER(glue(PFX,sub16))(uint32_t a, uint32_t b GE_ARG) +{ + uint32_t res = 0; + DECLARE_GE; + + SUB16(a, b, 0); + SUB16(a >> 16, b >> 16, 1); + SET_GE; + return res; +} + +uint32_t HELPER(glue(PFX,sub8))(uint32_t a, uint32_t b GE_ARG) +{ + uint32_t res = 0; + DECLARE_GE; + + SUB8(a, b, 0); + SUB8(a >> 8, b >> 8, 1); + SUB8(a >> 16, b >> 16, 2); + SUB8(a >> 24, b >> 24, 3); + SET_GE; + return res; +} + +uint32_t HELPER(glue(PFX,subaddx))(uint32_t a, uint32_t b GE_ARG) +{ + uint32_t res = 0; + DECLARE_GE; + + ADD16(a, b >> 16, 0); + SUB16(a >> 16, b, 1); + SET_GE; + return res; +} + +uint32_t HELPER(glue(PFX,addsubx))(uint32_t a, uint32_t b GE_ARG) +{ + uint32_t res = 0; + DECLARE_GE; + + SUB16(a, b >> 16, 0); + ADD16(a >> 16, b, 1); + SET_GE; + return res; +} + +#undef GE_ARG +#undef DECLARE_GE +#undef SET_GE +#undef RESULT + +#undef ARITH_GE +#undef PFX +#undef ADD16 +#undef SUB16 +#undef ADD8 +#undef SUB8 |