From 43a123c1ae6613b3efeed291fa552ecd909d3acf Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:23:18 +0200 Subject: Adding upstream version 1.20.14. Signed-off-by: Daniel Baumann --- src/cmd/asm/internal/arch/s390x.go | 81 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 src/cmd/asm/internal/arch/s390x.go (limited to 'src/cmd/asm/internal/arch/s390x.go') diff --git a/src/cmd/asm/internal/arch/s390x.go b/src/cmd/asm/internal/arch/s390x.go new file mode 100644 index 0000000..519d208 --- /dev/null +++ b/src/cmd/asm/internal/arch/s390x.go @@ -0,0 +1,81 @@ +// Copyright 2016 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. + +// This file encapsulates some of the odd characteristics of the +// s390x instruction set, to minimize its interaction +// with the core of the assembler. + +package arch + +import ( + "cmd/internal/obj/s390x" +) + +func jumpS390x(word string) bool { + switch word { + case "BRC", + "BC", + "BCL", + "BEQ", + "BGE", + "BGT", + "BL", + "BLE", + "BLEU", + "BLT", + "BLTU", + "BNE", + "BR", + "BVC", + "BVS", + "BRCT", + "BRCTG", + "CMPBEQ", + "CMPBGE", + "CMPBGT", + "CMPBLE", + "CMPBLT", + "CMPBNE", + "CMPUBEQ", + "CMPUBGE", + "CMPUBGT", + "CMPUBLE", + "CMPUBLT", + "CMPUBNE", + "CRJ", + "CGRJ", + "CLRJ", + "CLGRJ", + "CIJ", + "CGIJ", + "CLIJ", + "CLGIJ", + "CALL", + "JMP": + return true + } + return false +} + +func s390xRegisterNumber(name string, n int16) (int16, bool) { + switch name { + case "AR": + if 0 <= n && n <= 15 { + return s390x.REG_AR0 + n, true + } + case "F": + if 0 <= n && n <= 15 { + return s390x.REG_F0 + n, true + } + case "R": + if 0 <= n && n <= 15 { + return s390x.REG_R0 + n, true + } + case "V": + if 0 <= n && n <= 31 { + return s390x.REG_V0 + n, true + } + } + return 0, false +} -- cgit v1.2.3