diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2015-11-20 06:25:56 +0100 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2015-11-20 06:25:56 +0100 |
| commit | 9fccf1629ea99ab2613601e2ecd48646acb1e219 (patch) | |
| tree | c5b2164389116c33f42d3ae8954dc3586deb1455 /sys/src/libmp | |
| parent | 2559e19e1944f3ff880274d0a7d172976d082c33 (diff) | |
libmp: add mpvecadd()/mpvecsub() assembly versions for arm
Diffstat (limited to 'sys/src/libmp')
| -rw-r--r-- | sys/src/libmp/arm/mkfile | 2 | ||||
| -rw-r--r-- | sys/src/libmp/arm/mpvecadd.s | 32 | ||||
| -rw-r--r-- | sys/src/libmp/arm/mpvecdigmuladd.s | 4 | ||||
| -rw-r--r-- | sys/src/libmp/arm/mpvecdigmulsub.s | 4 | ||||
| -rw-r--r-- | sys/src/libmp/arm/mpvecsub.s | 31 |
5 files changed, 68 insertions, 5 deletions
diff --git a/sys/src/libmp/arm/mkfile b/sys/src/libmp/arm/mkfile index c939f5c41..501c5ecc4 100644 --- a/sys/src/libmp/arm/mkfile +++ b/sys/src/libmp/arm/mkfile @@ -2,7 +2,7 @@ objtype=arm </$objtype/mkfile LIB=/$objtype/lib/libmp.a -SFILES=mpvecdigmuladd.s mpvecdigmulsub.s +SFILES=mpvecdigmuladd.s mpvecdigmulsub.s mpvecadd.s mpvecsub.s HFILES=/$objtype/include/u.h /sys/include/mp.h ../port/dat.h diff --git a/sys/src/libmp/arm/mpvecadd.s b/sys/src/libmp/arm/mpvecadd.s new file mode 100644 index 000000000..931213407 --- /dev/null +++ b/sys/src/libmp/arm/mpvecadd.s @@ -0,0 +1,32 @@ +TEXT mpvecadd(SB),$0 + MOVW alen+4(FP), R4 + MOVW b+8(FP), R5 + MOVW blen+12(FP), R6 + MOVW sum+16(FP), R7 + MOVW $0, R8 + MOVW R8, R3 + CMP R8, R6 + B.EQ _add1 + SUB R6, R4, R4 +_addloop1: + MOVW.WP 4(R0), R1 + MOVW.WP 4(R5), R2 + CMP $1, R3 + ADC.S R2, R1 + ADC R8, R8, R3 + MOVW.WP R1, 4(R7) + SUB.S $1, R6 + B.NE _addloop1 +_add1: + CMP R8, R4 + B.EQ _addend +_addloop2: + MOVW.WP 4(R0), R1 + ADD.S R3, R1 + ADC R8, R8, R3 + MOVW.WP R1, 4(R7) + SUB.S $1, R4 + B.NE _addloop2 +_addend: + MOVW R3, (R7) + RET diff --git a/sys/src/libmp/arm/mpvecdigmuladd.s b/sys/src/libmp/arm/mpvecdigmuladd.s index a3833bee0..d006ff81b 100644 --- a/sys/src/libmp/arm/mpvecdigmuladd.s +++ b/sys/src/libmp/arm/mpvecdigmuladd.s @@ -5,12 +5,12 @@ TEXT mpvecdigmuladd(SB),$0 MOVW $0, R2 _muladdloop: MOVW $0, R1 - MOVW.W.P 4(R0), R3 + MOVW.WP 4(R0), R3 MULALU R3, R5, (R1, R2) MOVW (R6), R7 ADD.S R2, R7 ADC $0, R1, R2 - MOVW.W.P R7, 4(R6) + MOVW.WP R7, 4(R6) SUB.S $1, R4 B.NE _muladdloop MOVW (R6), R7 diff --git a/sys/src/libmp/arm/mpvecdigmulsub.s b/sys/src/libmp/arm/mpvecdigmulsub.s index 7f877a64b..8340734b6 100644 --- a/sys/src/libmp/arm/mpvecdigmulsub.s +++ b/sys/src/libmp/arm/mpvecdigmulsub.s @@ -5,13 +5,13 @@ TEXT mpvecdigmulsub(SB),$0 MOVW $0, R2 _mulsubloop: MOVW $0, R1 - MOVW.W.P 4(R0), R3 + MOVW.WP 4(R0), R3 MULALU R3, R5, (R1, R2) MOVW (R6), R7 SUB.S R2, R7 ADD.CC $1, R1 MOVW R1, R2 - MOVW.W.P R7, 4(R6) + MOVW.WP R7, 4(R6) SUB.S $1, R4 B.NE _mulsubloop MOVW (R6), R7 diff --git a/sys/src/libmp/arm/mpvecsub.s b/sys/src/libmp/arm/mpvecsub.s new file mode 100644 index 000000000..bfcb124ae --- /dev/null +++ b/sys/src/libmp/arm/mpvecsub.s @@ -0,0 +1,31 @@ +TEXT mpvecsub(SB),$0 + MOVW alen+4(FP), R4 + MOVW b+8(FP), R5 + MOVW blen+12(FP), R6 + MOVW diff+16(FP), R7 + MOVW $0, R8 + MOVW R8, R3 + CMP R8, R6 + B.EQ _sub1 + SUB R6, R4, R4 +_subloop1: + MOVW.WP 4(R0), R1 + MOVW.WP 4(R5), R2 + CMP R3, R8 + SBC.S R2, R1 + SBC R8, R8, R3 + MOVW.WP R1, 4(R7) + SUB.S $1, R6 + B.NE _subloop1 +_sub1: + CMP R8, R4 + RET.EQ +_subloop2: + MOVW.WP 4(R0), R1 + CMP R3, R8 + SBC.S R8, R1 + SBC R8, R8, R3 + MOVW.WP R1, 4(R7) + SUB.S $1, R4 + B.NE _subloop2 + RET |