diff options
| author | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
|---|---|---|
| committer | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
| commit | 8e4bff4cab0ddac6060645b0715210484d02ff40 (patch) | |
| tree | 3a5c3024371a04692a3a6d9974d001cdff8ebf84 /arch/metag/lib/modsi3.S | |
Diffstat (limited to 'arch/metag/lib/modsi3.S')
| -rw-r--r-- | arch/metag/lib/modsi3.S | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/metag/lib/modsi3.S b/arch/metag/lib/modsi3.S new file mode 100644 index 00000000..210cfa85 --- /dev/null +++ b/arch/metag/lib/modsi3.S @@ -0,0 +1,38 @@ +! Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 +! Imagination Technologies Ltd +! +! Integer modulus routines. +! +!! +!! 32-bit modulus unsigned i/p - passed unsigned 32-bit numbers +!! + .text + .global ___umodsi3 + .type ___umodsi3,function + .align 2 +___umodsi3: + MOV D0FrT,D1RtP ! Save original return address + CALLR D1RtP,___udivsi3 + MOV D1RtP,D0FrT ! Recover return address + MOV D0Re0,D1Ar1 ! Return remainder + MOV PC,D1RtP + .size ___umodsi3,.-___umodsi3 + +!! +!! 32-bit modulus signed i/p - passed signed 32-bit numbers +!! + .global ___modsi3 + .type ___modsi3,function + .align 2 +___modsi3: + MOV D0FrT,D1RtP ! Save original return address + MOV A0.2,D1Ar1 ! Save A in A0.2 + CALLR D1RtP,___divsi3 + MOV D1RtP,D0FrT ! Recover return address + MOV D1Re0,A0.2 ! Recover A + MOV D0Re0,D1Ar1 ! Return remainder + ORS D1Re0,D1Re0,D1Re0 ! Was A negative? + NEG D1Ar1,D1Ar1 ! Negate remainder + MOVMI D0Re0,D1Ar1 ! Return neg remainder + MOV PC, D1RtP + .size ___modsi3,.-___modsi3 |