James Hogan | 086e9dc | 2012-10-05 17:02:09 +0100 | [diff] [blame] | 1 | ! Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 |
| 2 | ! Imagination Technologies Ltd |
| 3 | ! |
| 4 | ! Integer modulus routines. |
| 5 | ! |
| 6 | !! |
| 7 | !! 32-bit modulus unsigned i/p - passed unsigned 32-bit numbers |
| 8 | !! |
| 9 | .text |
| 10 | .global ___umodsi3 |
| 11 | .type ___umodsi3,function |
| 12 | .align 2 |
| 13 | ___umodsi3: |
| 14 | MOV D0FrT,D1RtP ! Save original return address |
| 15 | CALLR D1RtP,___udivsi3 |
| 16 | MOV D1RtP,D0FrT ! Recover return address |
| 17 | MOV D0Re0,D1Ar1 ! Return remainder |
| 18 | MOV PC,D1RtP |
| 19 | .size ___umodsi3,.-___umodsi3 |
| 20 | |
| 21 | !! |
| 22 | !! 32-bit modulus signed i/p - passed signed 32-bit numbers |
| 23 | !! |
| 24 | .global ___modsi3 |
| 25 | .type ___modsi3,function |
| 26 | .align 2 |
| 27 | ___modsi3: |
| 28 | MOV D0FrT,D1RtP ! Save original return address |
| 29 | MOV A0.2,D1Ar1 ! Save A in A0.2 |
| 30 | CALLR D1RtP,___divsi3 |
| 31 | MOV D1RtP,D0FrT ! Recover return address |
| 32 | MOV D1Re0,A0.2 ! Recover A |
| 33 | MOV D0Re0,D1Ar1 ! Return remainder |
| 34 | ORS D1Re0,D1Re0,D1Re0 ! Was A negative? |
| 35 | NEG D1Ar1,D1Ar1 ! Negate remainder |
| 36 | MOVMI D0Re0,D1Ar1 ! Return neg remainder |
| 37 | MOV PC, D1RtP |
| 38 | .size ___modsi3,.-___modsi3 |