| Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame^] | 1 | .align 2 |
| 2 | .global ___umulsi3_highpart; |
| 3 | .type ___umulsi3_highpart, STT_FUNC; |
| 4 | |
| 5 | #ifdef CONFIG_ARITHMETIC_OPS_L1 |
| 6 | .section .l1.text |
| 7 | #else |
| 8 | .text |
| 9 | #endif |
| 10 | |
| 11 | ___umulsi3_highpart: |
| 12 | R2 = R1.H * R0.H, R3 = R1.L * R0.H (FU); |
| 13 | R0 = R1.L * R0.L, R1 = R1.H * R0.L (FU); |
| 14 | R0 >>= 16; |
| 15 | /* Unsigned multiplication has the nice property that we can |
| 16 | ignore carry on this first addition. */ |
| 17 | R0 = R0 + R3; |
| 18 | R0 = R0 + R1; |
| 19 | cc = ac0; |
| 20 | R1 = cc; |
| 21 | R1 = PACK(R1.l,R0.h); |
| 22 | R0 = R1 + R2; |
| 23 | RTS; |