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arith_mips64x.s
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// Copyright 2025 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.
// Code generated by 'go generate' (with ./internal/asmgen). DO NOT EDIT.
//go:build !math_big_pure_go && (mips64 || mips64le)
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB), NOSPLIT, $0
MOVV z_len+8(FP), R1
MOVV x_base+24(FP), R2
MOVV y_base+48(FP), R3
MOVV z_base+0(FP), R4
// compute unrolled loop lengths
AND $3, R1, R5
SRLV $2, R1
XOR R26, R26 // clear carry
loop1:
BEQ R5, loop1done
loop1cont:
// unroll 1X
MOVV 0(R2), R6
MOVV 0(R3), R7
ADDVU R7, R6 // ADCS R7, R6, R6 (cr=R26)
SGTU R7, R6, R23 // ...
ADDVU R26, R6 // ...
SGTU R26, R6, R26 // ...
ADDVU R23, R26 // ...
MOVV R6, 0(R4)
ADDVU $8, R2
ADDVU $8, R3
ADDVU $8, R4
SUBVU $1, R5
BNE R5, loop1cont
loop1done:
loop4:
BEQ R1, loop4done
loop4cont:
// unroll 4X
MOVV 0(R2), R5
MOVV 8(R2), R6
MOVV 16(R2), R7
MOVV 24(R2), R8
MOVV 0(R3), R9
MOVV 8(R3), R10
MOVV 16(R3), R11
MOVV 24(R3), R12
ADDVU R9, R5 // ADCS R9, R5, R5 (cr=R26)
SGTU R9, R5, R23 // ...
ADDVU R26, R5 // ...
SGTU R26, R5, R26 // ...
ADDVU R23, R26 // ...
ADDVU R10, R6 // ADCS R10, R6, R6 (cr=R26)
SGTU R10, R6, R23 // ...
ADDVU R26, R6 // ...
SGTU R26, R6, R26 // ...
ADDVU R23, R26 // ...
ADDVU R11, R7 // ADCS R11, R7, R7 (cr=R26)
SGTU R11, R7, R23 // ...
ADDVU R26, R7 // ...
SGTU R26, R7, R26 // ...
ADDVU R23, R26 // ...
ADDVU R12, R8 // ADCS R12, R8, R8 (cr=R26)
SGTU R12, R8, R23 // ...
ADDVU R26, R8 // ...
SGTU R26, R8, R26 // ...
ADDVU R23, R26 // ...
MOVV R5, 0(R4)
MOVV R6, 8(R4)
MOVV R7, 16(R4)
MOVV R8, 24(R4)
ADDVU $32, R2
ADDVU $32, R3
ADDVU $32, R4
SUBVU $1, R1
BNE R1, loop4cont
loop4done:
MOVV R26, c+72(FP)
RET
// func subVV(z, x, y []Word) (c Word)
TEXT ·subVV(SB), NOSPLIT, $0
MOVV z_len+8(FP), R1
MOVV x_base+24(FP), R2
MOVV y_base+48(FP), R3
MOVV z_base+0(FP), R4
// compute unrolled loop lengths
AND $3, R1, R5
SRLV $2, R1
XOR R26, R26 // clear carry
loop1:
BEQ R5, loop1done
loop1cont:
// unroll 1X
MOVV 0(R2), R6
MOVV 0(R3), R7
SGTU R26, R6, R23 // SBCS R7, R6, R6
SUBVU R26, R6 // ...
SGTU R7, R6, R26 // ...
SUBVU R7, R6 // ...
ADDVU R23, R26 // ...
MOVV R6, 0(R4)
ADDVU $8, R2
ADDVU $8, R3
ADDVU $8, R4
SUBVU $1, R5
BNE R5, loop1cont
loop1done:
loop4:
BEQ R1, loop4done
loop4cont:
// unroll 4X
MOVV 0(R2), R5
MOVV 8(R2), R6
MOVV 16(R2), R7
MOVV 24(R2), R8
MOVV 0(R3), R9
MOVV 8(R3), R10
MOVV 16(R3), R11
MOVV 24(R3), R12
SGTU R26, R5, R23 // SBCS R9, R5, R5
SUBVU R26, R5 // ...
SGTU R9, R5, R26 // ...
SUBVU R9, R5 // ...
ADDVU R23, R26 // ...
SGTU R26, R6, R23 // SBCS R10, R6, R6
SUBVU R26, R6 // ...
SGTU R10, R6, R26 // ...
SUBVU R10, R6 // ...
ADDVU R23, R26 // ...
SGTU R26, R7, R23 // SBCS R11, R7, R7
SUBVU R26, R7 // ...
SGTU R11, R7, R26 // ...
SUBVU R11, R7 // ...
ADDVU R23, R26 // ...
SGTU R26, R8, R23 // SBCS R12, R8, R8
SUBVU R26, R8 // ...
SGTU R12, R8, R26 // ...
SUBVU R12, R8 // ...
ADDVU R23, R26 // ...
MOVV R5, 0(R4)
MOVV R6, 8(R4)
MOVV R7, 16(R4)
MOVV R8, 24(R4)
ADDVU $32, R2
ADDVU $32, R3
ADDVU $32, R4
SUBVU $1, R1
BNE R1, loop4cont
loop4done:
MOVV R26, c+72(FP)
RET
// func lshVU(z, x []Word, s uint) (c Word)
TEXT ·lshVU(SB), NOSPLIT, $0
MOVV z_len+8(FP), R1
BEQ R1, ret0
MOVV s+48(FP), R2
MOVV x_base+24(FP), R3
MOVV z_base+0(FP), R4
// run loop backward
SLLV $3, R1, R5
ADDVU R5, R3
SLLV $3, R1, R5
ADDVU R5, R4
// shift first word into carry
MOVV -8(R3), R5
MOVV $64, R6
SUBVU R2, R6
SRLV R6, R5, R7
SLLV R2, R5
MOVV R7, c+56(FP)
// shift remaining words
SUBVU $1, R1
// compute unrolled loop lengths
AND $3, R1, R7
SRLV $2, R1
loop1:
BEQ R7, loop1done
loop1cont:
// unroll 1X
MOVV -16(R3), R8
SRLV R6, R8, R9
OR R5, R9
SLLV R2, R8, R5
MOVV R9, -8(R4)
ADDVU $-8, R3
ADDVU $-8, R4
SUBVU $1, R7
BNE R7, loop1cont
loop1done:
loop4:
BEQ R1, loop4done
loop4cont:
// unroll 4X
MOVV -16(R3), R7
MOVV -24(R3), R8
MOVV -32(R3), R9
MOVV -40(R3), R10
SRLV R6, R7, R11
OR R5, R11
SLLV R2, R7, R5
SRLV R6, R8, R7
OR R5, R7
SLLV R2, R8, R5
SRLV R6, R9, R8
OR R5, R8
SLLV R2, R9, R5
SRLV R6, R10, R9
OR R5, R9
SLLV R2, R10, R5
MOVV R11, -8(R4)
MOVV R7, -16(R4)
MOVV R8, -24(R4)
MOVV R9, -32(R4)
ADDVU $-32, R3
ADDVU $-32, R4
SUBVU $1, R1
BNE R1, loop4cont
loop4done:
// store final shifted bits
MOVV R5, -8(R4)
RET
ret0:
MOVV R0, c+56(FP)
RET
// func rshVU(z, x []Word, s uint) (c Word)
TEXT ·rshVU(SB), NOSPLIT, $0
MOVV z_len+8(FP), R1
BEQ R1, ret0
MOVV s+48(FP), R2
MOVV x_base+24(FP), R3
MOVV z_base+0(FP), R4
// shift first word into carry
MOVV 0(R3), R5
MOVV $64, R6
SUBVU R2, R6
SLLV R6, R5, R7
SRLV R2, R5
MOVV R7, c+56(FP)
// shift remaining words
SUBVU $1, R1
// compute unrolled loop lengths
AND $3, R1, R7
SRLV $2, R1
loop1:
BEQ R7, loop1done
loop1cont:
// unroll 1X
MOVV 8(R3), R8
SLLV R6, R8, R9
OR R5, R9
SRLV R2, R8, R5
MOVV R9, 0(R4)
ADDVU $8, R3
ADDVU $8, R4
SUBVU $1, R7
BNE R7, loop1cont
loop1done:
loop4:
BEQ R1, loop4done
loop4cont:
// unroll 4X
MOVV 8(R3), R7
MOVV 16(R3), R8
MOVV 24(R3), R9
MOVV 32(R3), R10
SLLV R6, R7, R11
OR R5, R11
SRLV R2, R7, R5
SLLV R6, R8, R7
OR R5, R7
SRLV R2, R8, R5
SLLV R6, R9, R8
OR R5, R8
SRLV R2, R9, R5
SLLV R6, R10, R9
OR R5, R9
SRLV R2, R10, R5
MOVV R11, 0(R4)
MOVV R7, 8(R4)
MOVV R8, 16(R4)
MOVV R9, 24(R4)
ADDVU $32, R3
ADDVU $32, R4
SUBVU $1, R1
BNE R1, loop4cont
loop4done:
// store final shifted bits
MOVV R5, 0(R4)
RET
ret0:
MOVV R0, c+56(FP)
RET
// func mulAddVWW(z, x []Word, m, a Word) (c Word)
TEXT ·mulAddVWW(SB), NOSPLIT, $0
MOVV m+48(FP), R1
MOVV a+56(FP), R2
MOVV z_len+8(FP), R3
MOVV x_base+24(FP), R4
MOVV z_base+0(FP), R5
// compute unrolled loop lengths
AND $3, R3, R6
SRLV $2, R3
loop1:
BEQ R6, loop1done
loop1cont:
// unroll 1X
MOVV 0(R4), R7
// synthetic carry, one column at a time
MULVU R1, R7
MOVV LO, R8
MOVV HI, R9
ADDVU R2, R8, R7 // ADDS R2, R8, R7 (cr=R26)
SGTU R2, R7, R26 // ...
ADDVU R26, R9, R2 // ADC $0, R9, R2
MOVV R7, 0(R5)
ADDVU $8, R4
ADDVU $8, R5
SUBVU $1, R6
BNE R6, loop1cont
loop1done:
loop4:
BEQ R3, loop4done
loop4cont:
// unroll 4X
MOVV 0(R4), R6
MOVV 8(R4), R7
MOVV 16(R4), R8
MOVV 24(R4), R9
// synthetic carry, one column at a time
MULVU R1, R6
MOVV LO, R10
MOVV HI, R11
ADDVU R2, R10, R6 // ADDS R2, R10, R6 (cr=R26)
SGTU R2, R6, R26 // ...
ADDVU R26, R11, R2 // ADC $0, R11, R2
MULVU R1, R7
MOVV LO, R10
MOVV HI, R11
ADDVU R2, R10, R7 // ADDS R2, R10, R7 (cr=R26)
SGTU R2, R7, R26 // ...
ADDVU R26, R11, R2 // ADC $0, R11, R2
MULVU R1, R8
MOVV LO, R10
MOVV HI, R11
ADDVU R2, R10, R8 // ADDS R2, R10, R8 (cr=R26)
SGTU R2, R8, R26 // ...
ADDVU R26, R11, R2 // ADC $0, R11, R2
MULVU R1, R9
MOVV LO, R10
MOVV HI, R11
ADDVU R2, R10, R9 // ADDS R2, R10, R9 (cr=R26)
SGTU R2, R9, R26 // ...
ADDVU R26, R11, R2 // ADC $0, R11, R2
MOVV R6, 0(R5)
MOVV R7, 8(R5)
MOVV R8, 16(R5)
MOVV R9, 24(R5)
ADDVU $32, R4
ADDVU $32, R5
SUBVU $1, R3
BNE R3, loop4cont
loop4done:
MOVV R2, c+64(FP)
RET
// func addMulVVWW(z, x, y []Word, m, a Word) (c Word)
TEXT ·addMulVVWW(SB), NOSPLIT, $0
MOVV m+72(FP), R1
MOVV a+80(FP), R2
MOVV z_len+8(FP), R3
MOVV x_base+24(FP), R4
MOVV y_base+48(FP), R5
MOVV z_base+0(FP), R6
// compute unrolled loop lengths
AND $3, R3, R7
SRLV $2, R3
loop1:
BEQ R7, loop1done
loop1cont:
// unroll 1X
MOVV 0(R4), R8
MOVV 0(R5), R9
// synthetic carry, one column at a time
MULVU R1, R9
MOVV LO, R10
MOVV HI, R11
ADDVU R8, R10 // ADDS R8, R10, R10 (cr=R26)
SGTU R8, R10, R26 // ...
ADDVU R26, R11 // ADC $0, R11, R11
ADDVU R2, R10, R9 // ADDS R2, R10, R9 (cr=R26)
SGTU R2, R9, R26 // ...
ADDVU R26, R11, R2 // ADC $0, R11, R2
MOVV R9, 0(R6)
ADDVU $8, R4
ADDVU $8, R5
ADDVU $8, R6
SUBVU $1, R7
BNE R7, loop1cont
loop1done:
loop4:
BEQ R3, loop4done
loop4cont:
// unroll 4X
MOVV 0(R4), R7
MOVV 8(R4), R8
MOVV 16(R4), R9
MOVV 24(R4), R10
MOVV 0(R5), R11
MOVV 8(R5), R12
MOVV 16(R5), R13
MOVV 24(R5), R14
// synthetic carry, one column at a time
MULVU R1, R11
MOVV LO, R15
MOVV HI, R16
ADDVU R7, R15 // ADDS R7, R15, R15 (cr=R26)
SGTU R7, R15, R26 // ...
ADDVU R26, R16 // ADC $0, R16, R16
ADDVU R2, R15, R11 // ADDS R2, R15, R11 (cr=R26)
SGTU R2, R11, R26 // ...
ADDVU R26, R16, R2 // ADC $0, R16, R2
MULVU R1, R12
MOVV LO, R15
MOVV HI, R16
ADDVU R8, R15 // ADDS R8, R15, R15 (cr=R26)
SGTU R8, R15, R26 // ...
ADDVU R26, R16 // ADC $0, R16, R16
ADDVU R2, R15, R12 // ADDS R2, R15, R12 (cr=R26)
SGTU R2, R12, R26 // ...
ADDVU R26, R16, R2 // ADC $0, R16, R2
MULVU R1, R13
MOVV LO, R15
MOVV HI, R16
ADDVU R9, R15 // ADDS R9, R15, R15 (cr=R26)
SGTU R9, R15, R26 // ...
ADDVU R26, R16 // ADC $0, R16, R16
ADDVU R2, R15, R13 // ADDS R2, R15, R13 (cr=R26)
SGTU R2, R13, R26 // ...
ADDVU R26, R16, R2 // ADC $0, R16, R2
MULVU R1, R14
MOVV LO, R15
MOVV HI, R16
ADDVU R10, R15 // ADDS R10, R15, R15 (cr=R26)
SGTU R10, R15, R26 // ...
ADDVU R26, R16 // ADC $0, R16, R16
ADDVU R2, R15, R14 // ADDS R2, R15, R14 (cr=R26)
SGTU R2, R14, R26 // ...
ADDVU R26, R16, R2 // ADC $0, R16, R2
MOVV R11, 0(R6)
MOVV R12, 8(R6)
MOVV R13, 16(R6)
MOVV R14, 24(R6)
ADDVU $32, R4
ADDVU $32, R5
ADDVU $32, R6
SUBVU $1, R3
BNE R3, loop4cont
loop4done:
MOVV R2, c+88(FP)
RET