| // 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. |
| |
| package asmgen |
| |
| var ArchMIPS64x = &Arch{ |
| Name: "mips64x", |
| Build: "mips64 || mips64le", |
| WordBits: 64, |
| WordBytes: 8, |
| CarrySafeLoop: true, |
| |
| regs: []string{ |
| // R0 is 0 |
| // R23 is the assembler/linker temporary (which we use too). |
| // R24 and R25 are our virtual carry flags. |
| // R28 is SB. |
| // R29 is SP. |
| // R30 is g. |
| // R31 is LR. |
| "R1", "R2", "R3", "R4", "R5", "R6", "R7", "R8", "R9", |
| "R10", "R11", "R12", "R13", "R14", "R15", "R16", "R17", "R18", "R19", |
| "R20", "R21", "R22", "R24", "R25", |
| }, |
| reg0: "R0", |
| regTmp: "R23", |
| regCarry: "R24", |
| regAltCarry: "R25", |
| |
| mov: "MOVV", |
| add: "ADDVU", |
| sltu: "SGTU", // SGTU args are swapped, so it's really SLTU |
| sub: "SUBVU", |
| mulWideF: mips64MulWide, |
| lsh: "SLLV", |
| rsh: "SRLV", |
| and: "AND", |
| or: "OR", |
| xor: "XOR", |
| |
| jmpZero: "BEQ %s, %s", |
| jmpNonZero: "BNE %s, %s", |
| } |
| |
| func mips64MulWide(a *Asm, src1, src2, dstlo, dsthi Reg) { |
| a.Printf("\tMULVU %s, %s\n\tMOVV LO, %s\n\tMOVV HI, %s\n", src1, src2, dstlo, dsthi) |
| } |
