diff options
Diffstat (limited to 'asm_arm.h')
| -rw-r--r-- | asm_arm.h | 85 |
1 files changed, 72 insertions, 13 deletions
@@ -21,9 +21,10 @@ static inline ogg_int32_t MULT32(ogg_int32_t x, ogg_int32_t y) { int lo,hi; - asm volatile("smull %0,%1,%2,%3;\n" + asm volatile("smull\t%0, %1, %2, %3" : "=&r"(lo),"=&r"(hi) - : "%r"(x),"r"(y)); + : "%r"(x),"r"(y) + : "cc"); return(hi); } @@ -37,26 +38,84 @@ static inline ogg_int32_t MULT30(ogg_int32_t x, ogg_int32_t y) { static inline ogg_int32_t MULT31_SHIFT15(ogg_int32_t x, ogg_int32_t y) { int lo,hi; - asm volatile("smull %0,%1,%2,%3;\n" - "mov %0,%0, lsr #15;\n" - "orr %1,%0,%1, lsl #17;\n" + asm volatile("smull %0, %1, %2, %3\n\t" + "movs %0, %0, lsr #15\n\t" + "adc %1, %0, %1, lsl #17\n\t" : "=&r"(lo),"=&r"(hi) - : "%r"(x),"r"(y)); + : "%r"(x),"r"(y) + : "cc"); return(hi); } static inline ogg_int32_t CLIP_TO_15(ogg_int32_t x) { - asm volatile("subs r0,%0,#32768;\n" - "movpl %0,#0x7f00;\n" - "orrpl %0,%0,#0xff;\n" - "adds r0,%0,#32768;\n" - "movmi %0,#0x8000;\n" - : "+r"(x) + int tmp; + asm volatile("subs %1, %0, #32768\n\t" + "movpl %0, #0x7f00\n\t" + "orrpl %0, %0, #0xff\n" + "adds %1, %0, #32768\n\t" + "movmi %0, #0x8000" + : "+r"(x),"=r"(tmp) : - : "r0","cc"); + : "cc"); return(x); } +#define MB() asm volatile ("" : : : "memory") + +static inline void XPROD32(ogg_int32_t a, ogg_int32_t b, + ogg_int32_t t, ogg_int32_t v, + ogg_int32_t *x, ogg_int32_t *y) +{ + int x1, y1, l; + asm( "smull %0, %1, %4, %6\n\t" + "smlal %0, %1, %5, %7\n\t" + "rsb %3, %4, #0\n\t" + "smull %0, %2, %5, %6\n\t" + "smlal %0, %2, %3, %7" + : "=&r" (l), "=&r" (x1), "=&r" (y1), "=r" (a) + : "3" (a), "r" (b), "r" (t), "r" (v) + : "cc" ); + *x = x1; + MB(); + *y = y1; +} + +static inline void XPROD31(ogg_int32_t a, ogg_int32_t b, + ogg_int32_t t, ogg_int32_t v, + ogg_int32_t *x, ogg_int32_t *y) +{ + int x1, y1, l; + asm( "smull %0, %1, %4, %6\n\t" + "smlal %0, %1, %5, %7\n\t" + "rsb %3, %4, #0\n\t" + "smull %0, %2, %5, %6\n\t" + "smlal %0, %2, %3, %7" + : "=&r" (l), "=&r" (x1), "=&r" (y1), "=r" (a) + : "3" (a), "r" (b), "r" (t), "r" (v) + : "cc" ); + *x = x1 << 1; + MB(); + *y = y1 << 1; +} + +static inline void XNPROD31(ogg_int32_t a, ogg_int32_t b, + ogg_int32_t t, ogg_int32_t v, + ogg_int32_t *x, ogg_int32_t *y) +{ + int x1, y1, l; + asm( "rsb %2, %4, #0\n\t" + "smull %0, %1, %3, %5\n\t" + "smlal %0, %1, %2, %6\n\t" + "smull %0, %2, %4, %5\n\t" + "smlal %0, %2, %3, %6" + : "=&r" (l), "=&r" (x1), "=&r" (y1) + : "r" (a), "r" (b), "r" (t), "r" (v) + : "cc" ); + *x = x1 << 1; + MB(); + *y = y1 << 1; +} + #endif #ifndef _V_LSP_MATH_ASM |