diff options
| author | Brad Midgley <bmidgley@xmission.com> | 2008-01-17 04:35:14 +0000 |
|---|---|---|
| committer | Brad Midgley <bmidgley@xmission.com> | 2008-01-17 04:35:14 +0000 |
| commit | f6dd2c738c08de510d8eb2d2f81c1c9f10521cd2 (patch) | |
| tree | 1ed5d43a94fe45765db9f29a5b0c5fc40cabf9b8 /sbc/sbc_math.h | |
| parent | 68fdcb7d84d0d700f10ca3be42f9c7e51cfca932 (diff) | |
codec has been using 32-bit (MUL) and 64-bit (MULA) multiplies
straighten things out so MUL/MULA are both 64 bit
create MUL32/MULA32 for anyone who really needs a 32-bit product
Diffstat (limited to 'sbc/sbc_math.h')
| -rw-r--r-- | sbc/sbc_math.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sbc/sbc_math.h b/sbc/sbc_math.h index 97389c29..fae2a0c5 100644 --- a/sbc/sbc_math.h +++ b/sbc/sbc_math.h @@ -64,6 +64,8 @@ typedef long long sbc_extended_t; #define SBC_FIXED_0(val) { val = 0; } #define ADD(dst, src) { dst += src; } #define SUB(dst, src) { dst -= src; } -#define MUL(dst, a, b) { dst = (sbc_fixed_t) (a) * (b); } +#define MUL32(dst, a, b) { dst = (sbc_fixed_t) (a) * (b); } +#define MULA32(dst, a, b) { dst += (sbc_fixed_t) (a) * (b); } +#define MUL(dst, a, b) { dst = (sbc_extended_t) (a) * (b); } #define MULA(dst, a, b) { dst += (sbc_extended_t) (a) * (b); } #define DIV2(dst, src) { dst = ASR(src, 1); } |