ARMSystemRegister.td
5.42 KB
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//===-- ARMSystemRegister.td - ARM Register defs -------------*- tablegen -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
include "llvm/TableGen/SearchableTable.td"
//===----------------------------------------------------------------------===//
// Declarations that describe the ARM system-registers
//===----------------------------------------------------------------------===//
// M-Class System Registers.
// 'Mask' bits create unique keys for searches.
//
class MClassSysReg<bits<1> UniqMask1,
bits<1> UniqMask2,
bits<1> UniqMask3,
bits<12> Enc12,
string name> : SearchableTable {
let SearchableFields = ["Name", "M1Encoding12", "M2M3Encoding8", "Encoding"];
string Name;
bits<13> M1Encoding12;
bits<10> M2M3Encoding8;
bits<12> Encoding;
let Name = name;
let EnumValueField = "M1Encoding12";
let EnumValueField = "M2M3Encoding8";
let EnumValueField = "Encoding";
let M1Encoding12{12} = UniqMask1;
let M1Encoding12{11-00} = Enc12;
let Encoding = Enc12;
let M2M3Encoding8{9} = UniqMask2;
let M2M3Encoding8{8} = UniqMask3;
let M2M3Encoding8{7-0} = Enc12{7-0};
code Requires = [{ {} }];
}
// [|i|e|x]apsr_nzcvq has alias [|i|e|x]apsr.
// Mask1 Mask2 Mask3 Enc12, Name
let Requires = [{ {ARM::FeatureDSP} }] in {
def : MClassSysReg<0, 0, 0, 0x400, "apsr_g">;
def : MClassSysReg<0, 1, 1, 0xc00, "apsr_nzcvqg">;
def : MClassSysReg<0, 0, 0, 0x401, "iapsr_g">;
def : MClassSysReg<0, 1, 1, 0xc01, "iapsr_nzcvqg">;
def : MClassSysReg<0, 0, 0, 0x402, "eapsr_g">;
def : MClassSysReg<0, 1, 1, 0xc02, "eapsr_nzcvqg">;
def : MClassSysReg<0, 0, 0, 0x403, "xpsr_g">;
def : MClassSysReg<0, 1, 1, 0xc03, "xpsr_nzcvqg">;
}
def : MClassSysReg<0, 0, 1, 0x800, "apsr">;
def : MClassSysReg<1, 1, 0, 0x800, "apsr_nzcvq">;
def : MClassSysReg<0, 0, 1, 0x801, "iapsr">;
def : MClassSysReg<1, 1, 0, 0x801, "iapsr_nzcvq">;
def : MClassSysReg<0, 0, 1, 0x802, "eapsr">;
def : MClassSysReg<1, 1, 0, 0x802, "eapsr_nzcvq">;
def : MClassSysReg<0, 0, 1, 0x803, "xpsr">;
def : MClassSysReg<1, 1, 0, 0x803, "xpsr_nzcvq">;
def : MClassSysReg<0, 0, 1, 0x805, "ipsr">;
def : MClassSysReg<0, 0, 1, 0x806, "epsr">;
def : MClassSysReg<0, 0, 1, 0x807, "iepsr">;
def : MClassSysReg<0, 0, 1, 0x808, "msp">;
def : MClassSysReg<0, 0, 1, 0x809, "psp">;
let Requires = [{ {ARM::HasV8MBaselineOps} }] in {
def : MClassSysReg<0, 0, 1, 0x80a, "msplim">;
def : MClassSysReg<0, 0, 1, 0x80b, "psplim">;
}
def : MClassSysReg<0, 0, 1, 0x810, "primask">;
let Requires = [{ {ARM::HasV7Ops} }] in {
def : MClassSysReg<0, 0, 1, 0x811, "basepri">;
def : MClassSysReg<0, 0, 1, 0x812, "basepri_max">;
def : MClassSysReg<0, 0, 1, 0x813, "faultmask">;
}
def : MClassSysReg<0, 0, 1, 0x814, "control">;
let Requires = [{ {ARM::Feature8MSecExt} }] in {
def : MClassSysReg<0, 0, 1, 0x888, "msp_ns">;
def : MClassSysReg<0, 0, 1, 0x889, "psp_ns">;
}
let Requires = [{ {ARM::Feature8MSecExt, ARM::HasV8MBaselineOps} }] in {
def : MClassSysReg<0, 0, 1, 0x88a, "msplim_ns">;
def : MClassSysReg<0, 0, 1, 0x88b, "psplim_ns">;
}
def : MClassSysReg<0, 0, 1, 0x890, "primask_ns">;
let Requires = [{ {ARM::Feature8MSecExt, ARM::HasV7Ops} }] in {
def : MClassSysReg<0, 0, 1, 0x891, "basepri_ns">;
def : MClassSysReg<0, 0, 1, 0x893, "faultmask_ns">;
}
let Requires = [{ {ARM::Feature8MSecExt} }] in {
def : MClassSysReg<0, 0, 1, 0x894, "control_ns">;
def : MClassSysReg<0, 0, 1, 0x898, "sp_ns">;
}
// Banked Registers
//
class BankedReg<string name, bits<8> enc>
: SearchableTable {
string Name;
bits<8> Encoding;
let Name = name;
let Encoding = enc;
let SearchableFields = ["Name", "Encoding"];
}
// The values here come from B9.2.3 of the ARM ARM, where bits 4-0 are SysM
// and bit 5 is R.
def : BankedReg<"r8_usr", 0x00>;
def : BankedReg<"r9_usr", 0x01>;
def : BankedReg<"r10_usr", 0x02>;
def : BankedReg<"r11_usr", 0x03>;
def : BankedReg<"r12_usr", 0x04>;
def : BankedReg<"sp_usr", 0x05>;
def : BankedReg<"lr_usr", 0x06>;
def : BankedReg<"r8_fiq", 0x08>;
def : BankedReg<"r9_fiq", 0x09>;
def : BankedReg<"r10_fiq", 0x0a>;
def : BankedReg<"r11_fiq", 0x0b>;
def : BankedReg<"r12_fiq", 0x0c>;
def : BankedReg<"sp_fiq", 0x0d>;
def : BankedReg<"lr_fiq", 0x0e>;
def : BankedReg<"lr_irq", 0x10>;
def : BankedReg<"sp_irq", 0x11>;
def : BankedReg<"lr_svc", 0x12>;
def : BankedReg<"sp_svc", 0x13>;
def : BankedReg<"lr_abt", 0x14>;
def : BankedReg<"sp_abt", 0x15>;
def : BankedReg<"lr_und", 0x16>;
def : BankedReg<"sp_und", 0x17>;
def : BankedReg<"lr_mon", 0x1c>;
def : BankedReg<"sp_mon", 0x1d>;
def : BankedReg<"elr_hyp", 0x1e>;
def : BankedReg<"sp_hyp", 0x1f>;
def : BankedReg<"spsr_fiq", 0x2e>;
def : BankedReg<"spsr_irq", 0x30>;
def : BankedReg<"spsr_svc", 0x32>;
def : BankedReg<"spsr_abt", 0x34>;
def : BankedReg<"spsr_und", 0x36>;
def : BankedReg<"spsr_mon", 0x3c>;
def : BankedReg<"spsr_hyp", 0x3e>;