Gecko [ 167.86.127.34 ]

Name	Size	Permission
accuracy_string.go	414 B	-rw-r--r--
arith.go	5.68 KB	-rw-r--r--
arith_386.s	4.67 KB	-rw-r--r--
arith_amd64.go	277 B	-rw-r--r--
arith_amd64.s	9.71 KB	-rw-r--r--
arith_arm.s	4.47 KB	-rw-r--r--
arith_arm64.s	9.94 KB	-rw-r--r--
arith_decl.go	707 B	-rw-r--r--
arith_decl_pure.go	1.24 KB	-rw-r--r--
arith_decl_s390x.go	791 B	-rw-r--r--
arith_mips64x.s	917 B	-rw-r--r--
arith_mipsx.s	913 B	-rw-r--r--
arith_ppc64x.s	12.62 KB	-rw-r--r--
arith_s390x.s	29.12 KB	-rw-r--r--
arith_s390x_test.go	1014 B	-rw-r--r--
arith_test.go	12.29 KB	-rw-r--r--
arith_wasm.s	757 B	-rw-r--r--
bits_test.go	5.07 KB	-rw-r--r--
calibrate_test.go	4.63 KB	-rw-r--r--
decimal.go	6.52 KB	-rw-r--r--
decimal_test.go	3.33 KB	-rw-r--r--
doc.go	3.79 KB	-rw-r--r--
example_rat_test.go	1.68 KB	-rw-r--r--
example_test.go	3.94 KB	-rw-r--r--
float.go	44.14 KB	-rw-r--r--
float_test.go	51.94 KB	-rw-r--r--
floatconv.go	8.36 KB	-rw-r--r--
floatconv_test.go	24.28 KB	-rw-r--r--
floatexample_test.go	3.63 KB	-rw-r--r--
floatmarsh.go	3.34 KB	-rw-r--r--
floatmarsh_test.go	3.64 KB	-rw-r--r--
ftoa.go	13.55 KB	-rw-r--r--
gcd_test.go	2.16 KB	-rw-r--r--
hilbert_test.go	2.88 KB	-rw-r--r--
int.go	29.56 KB	-rw-r--r--
int_test.go	51.93 KB	-rw-r--r--
intconv.go	6.68 KB	-rw-r--r--
intconv_test.go	10.01 KB	-rw-r--r--
intmarsh.go	2.09 KB	-rw-r--r--
intmarsh_test.go	2.8 KB	-rw-r--r--
nat.go	33.76 KB	-rw-r--r--
nat_test.go	18.87 KB	-rw-r--r--
natconv.go	14.57 KB	-rw-r--r--
natconv_test.go	16.85 KB	-rw-r--r--
prime.go	10.34 KB	-rw-r--r--
prime_test.go	7.1 KB	-rw-r--r--
rat.go	13.49 KB	-rw-r--r--
rat_test.go	18.54 KB	-rw-r--r--
ratconv.go	9.49 KB	-rw-r--r--
ratconv_test.go	14.96 KB	-rw-r--r--
ratmarsh.go	1.95 KB	-rw-r--r--
ratmarsh_test.go	3.04 KB	-rw-r--r--
roundingmode_string.go	501 B	-rw-r--r--
sqrt.go	3.59 KB	-rw-r--r--
sqrt_test.go	4.81 KB	-rw-r--r--

Code Editor : arith_arm.s

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// +build !math_big_pure_go

#include "textflag.h"

// This file provides fast assembly versions for the elementary
// arithmetic operations on vectors implemented in arith.go.

// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
	ADD.S	$0, R0		// clear carry flag
	MOVW	z+0(FP), R1
	MOVW	z_len+4(FP), R4
	MOVW	x+12(FP), R2
	MOVW	y+24(FP), R3
	ADD	R4<<2, R1, R4
	B E1
L1:
	MOVW.P	4(R2), R5
	MOVW.P	4(R3), R6
	ADC.S	R6, R5
	MOVW.P	R5, 4(R1)
E1:
	TEQ	R1, R4
	BNE L1

MOVW	$0, R0
	MOVW.CS	$1, R0
	MOVW	R0, c+36(FP)
	RET

// func subVV(z, x, y []Word) (c Word)
// (same as addVV except for SBC instead of ADC and label names)
TEXT ·subVV(SB),NOSPLIT,$0
	SUB.S	$0, R0		// clear borrow flag
	MOVW	z+0(FP), R1
	MOVW	z_len+4(FP), R4
	MOVW	x+12(FP), R2
	MOVW	y+24(FP), R3
	ADD	R4<<2, R1, R4
	B E2
L2:
	MOVW.P	4(R2), R5
	MOVW.P	4(R3), R6
	SBC.S	R6, R5
	MOVW.P	R5, 4(R1)
E2:
	TEQ	R1, R4
	BNE L2

MOVW	$0, R0
	MOVW.CC	$1, R0
	MOVW	R0, c+36(FP)
	RET

// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
	MOVW	z+0(FP), R1
	MOVW	z_len+4(FP), R4
	MOVW	x+12(FP), R2
	MOVW	y+24(FP), R3
	ADD	R4<<2, R1, R4
	TEQ	R1, R4
	BNE L3a
	MOVW	R3, c+28(FP)
	RET
L3a:
	MOVW.P	4(R2), R5
	ADD.S	R3, R5
	MOVW.P	R5, 4(R1)
	B	E3
L3:
	MOVW.P	4(R2), R5
	ADC.S	$0, R5
	MOVW.P	R5, 4(R1)
E3:
	TEQ	R1, R4
	BNE	L3

MOVW	$0, R0
	MOVW.CS	$1, R0
	MOVW	R0, c+28(FP)
	RET

// func subVW(z, x []Word, y Word) (c Word)
TEXT ·subVW(SB),NOSPLIT,$0
	MOVW	z+0(FP), R1
	MOVW	z_len+4(FP), R4
	MOVW	x+12(FP), R2
	MOVW	y+24(FP), R3
	ADD	R4<<2, R1, R4
	TEQ	R1, R4
	BNE L4a
	MOVW	R3, c+28(FP)
	RET
L4a:
	MOVW.P	4(R2), R5
	SUB.S	R3, R5
	MOVW.P	R5, 4(R1)
	B	E4
L4:
	MOVW.P	4(R2), R5
	SBC.S	$0, R5
	MOVW.P	R5, 4(R1)
E4:
	TEQ	R1, R4
	BNE	L4

MOVW	$0, R0
	MOVW.CC	$1, R0
	MOVW	R0, c+28(FP)
	RET

// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
	MOVW	z_len+4(FP), R5
	TEQ	$0, R5
	BEQ	X7

MOVW	z+0(FP), R1
	MOVW	x+12(FP), R2
	ADD	R5<<2, R2, R2
	ADD	R5<<2, R1, R5
	MOVW	s+24(FP), R3
	TEQ	$0, R3	// shift 0 is special
	BEQ	Y7
	ADD	$4, R1	// stop one word early
	MOVW	$32, R4
	SUB	R3, R4
	MOVW	$0, R7

MOVW.W	-4(R2), R6
	MOVW	R6<<R3, R7
	MOVW	R6>>R4, R6
	MOVW	R6, c+28(FP)
	B E7

L7:
	MOVW.W	-4(R2), R6
	ORR	R6>>R4, R7
	MOVW.W	R7, -4(R5)
	MOVW	R6<<R3, R7
E7:
	TEQ	R1, R5
	BNE	L7

MOVW	R7, -4(R5)
	RET

Y7:	// copy loop, because shift 0 == shift 32
	MOVW.W	-4(R2), R6
	MOVW.W	R6, -4(R5)
	TEQ	R1, R5
	BNE Y7

X7:
	MOVW	$0, R1
	MOVW	R1, c+28(FP)
	RET

// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
	MOVW	z_len+4(FP), R5
	TEQ	$0, R5
	BEQ	X6

MOVW	z+0(FP), R1
	MOVW	x+12(FP), R2
	ADD	R5<<2, R1, R5
	MOVW	s+24(FP), R3
	TEQ	$0, R3	// shift 0 is special
	BEQ Y6
	SUB	$4, R5	// stop one word early
	MOVW	$32, R4
	SUB	R3, R4
	MOVW	$0, R7

// first word
	MOVW.P	4(R2), R6
	MOVW	R6>>R3, R7
	MOVW	R6<<R4, R6
	MOVW	R6, c+28(FP)
	B E6

// word loop
L6:
	MOVW.P	4(R2), R6
	ORR	R6<<R4, R7
	MOVW.P	R7, 4(R1)
	MOVW	R6>>R3, R7
E6:
	TEQ	R1, R5
	BNE	L6

MOVW	R7, 0(R1)
	RET

Y6:	// copy loop, because shift 0 == shift 32
	MOVW.P	4(R2), R6
	MOVW.P	R6, 4(R1)
	TEQ R1, R5
	BNE Y6

X6:
	MOVW	$0, R1
	MOVW	R1, c+28(FP)
	RET

// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
	MOVW	$0, R0
	MOVW	z+0(FP), R1
	MOVW	z_len+4(FP), R5
	MOVW	x+12(FP), R2
	MOVW	y+24(FP), R3
	MOVW	r+28(FP), R4
	ADD	R5<<2, R1, R5
	B E8

// word loop
L8:
	MOVW.P	4(R2), R6
	MULLU	R6, R3, (R7, R6)
	ADD.S	R4, R6
	ADC	R0, R7
	MOVW.P	R6, 4(R1)
	MOVW	R7, R4
E8:
	TEQ	R1, R5
	BNE	L8

MOVW	R4, c+32(FP)
	RET

// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
	MOVW	$0, R0
	MOVW	z+0(FP), R1
	MOVW	z_len+4(FP), R5
	MOVW	x+12(FP), R2
	MOVW	y+24(FP), R3
	ADD	R5<<2, R1, R5
	MOVW	$0, R4
	B E9

// word loop
L9:
	MOVW.P	4(R2), R6
	MULLU	R6, R3, (R7, R6)
	ADD.S	R4, R6
	ADC	R0, R7
	MOVW	0(R1), R4
	ADD.S	R4, R6
	ADC	R0, R7
	MOVW.P	R6, 4(R1)
	MOVW	R7, R4
E9:
	TEQ	R1, R5
	BNE	L9

MOVW	R4, c+28(FP)
	RET

// func divWVW(z* Word, xn Word, x []Word, y Word) (r Word)
TEXT ·divWVW(SB),NOSPLIT,$0
	// ARM has no multiword division, so use portable code.
	B ·divWVW_g(SB)

// func divWW(x1, x0, y Word) (q, r Word)
TEXT ·divWW(SB),NOSPLIT,$0
	// ARM has no multiword division, so use portable code.
	B ·divWW_g(SB)

// func mulWW(x, y Word) (z1, z0 Word)
TEXT ·mulWW(SB),NOSPLIT,$0
	MOVW	x+0(FP), R1
	MOVW	y+4(FP), R2
	MULLU	R1, R2, (R4, R3)
	MOVW	R4, z1+8(FP)
	MOVW	R3, z0+12(FP)
	RET

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Code Editor : arith_arm.s