diff options
| -rw-r--r-- | target-mips/dsp_helper.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/target-mips/dsp_helper.c b/target-mips/dsp_helper.c index 4870e3dbbc..aed4c637c3 100644 --- a/target-mips/dsp_helper.c +++ b/target-mips/dsp_helper.c @@ -20,6 +20,28 @@ #include "cpu.h" #include "helper.h" +/* As the byte ordering doesn't matter, i.e. all columns are treated + identically, these unions can be used directly. */ +typedef union { + uint8_t ub[4]; + int8_t sb[4]; + uint16_t uh[2]; + int16_t sh[2]; + uint32_t uw[1]; + int32_t sw[1]; +} DSP32Value; + +typedef union { + uint8_t ub[8]; + int8_t sb[8]; + uint16_t uh[4]; + int16_t sh[4]; + uint32_t uw[2]; + int32_t sw[2]; + uint64_t ul[1]; + int64_t sl[1]; +} DSP64Value; + /*** MIPS DSP internal functions begin ***/ #define MIPSDSP_ABS(x) (((x) >= 0) ? x : -x) #define MIPSDSP_OVERFLOW(a, b, c, d) (!(!((a ^ b ^ -1) & (a ^ c) & d))) |