1612 lines
41 KiB
C++
1612 lines
41 KiB
C++
// Copyright 2013 Dolphin Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#include <limits>
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#include "Common/Arm64Emitter.h"
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#include "Common/MathUtil.h"
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namespace Arm64Gen
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{
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void ARM64XEmitter::SetCodePtr(u8* ptr)
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{
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m_code = ptr;
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m_startcode = m_code;
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m_lastCacheFlushEnd = ptr;
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}
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const u8* ARM64XEmitter::GetCodePtr() const
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{
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return m_code;
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}
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u8* ARM64XEmitter::GetWritableCodePtr()
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{
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return m_code;
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}
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void ARM64XEmitter::ReserveCodeSpace(u32 bytes)
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{
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for (u32 i = 0; i < bytes/4; i++)
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BRK(0);
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}
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const u8* ARM64XEmitter::AlignCode16()
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{
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int c = int((u64)m_code & 15);
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if (c)
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ReserveCodeSpace(16-c);
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return m_code;
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}
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const u8* ARM64XEmitter::AlignCodePage()
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{
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int c = int((u64)m_code & 4095);
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if (c)
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ReserveCodeSpace(4096-c);
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return m_code;
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}
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void ARM64XEmitter::FlushIcache()
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{
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FlushIcacheSection(m_lastCacheFlushEnd, m_code);
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m_lastCacheFlushEnd = m_code;
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}
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void ARM64XEmitter::FlushIcacheSection(u8* start, u8* end)
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{
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#if defined(IOS)
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// Header file says this is equivalent to: sys_icache_invalidate(start, end - start);
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sys_cache_control(kCacheFunctionPrepareForExecution, start, end - start);
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#else
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#ifdef __clang__
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__clear_cache(start, end);
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#else
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__builtin___clear_cache(start, end);
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#endif
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#endif
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}
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// Exception generation
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static const u32 ExcEnc[][3] = {
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{0, 0, 1}, // SVC
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{0, 0, 2}, // HVC
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{0, 0, 3}, // SMC
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{1, 0, 0}, // BRK
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{2, 0, 0}, // HLT
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{5, 0, 1}, // DCPS1
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{5, 0, 2}, // DCPS2
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{5, 0, 3}, // DCPS3
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};
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// Arithmetic generation
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static const u32 ArithEnc[] = {
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0x058, // ADD
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0x258, // SUB
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};
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// Conditional Select
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static const u32 CondSelectEnc[][2] = {
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{0, 0}, // CSEL
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{0, 1}, // CSINC
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{1, 0}, // CSINV
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{1, 1}, // CSNEG
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};
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// Data-Processing (1 source)
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static const u32 Data1SrcEnc[][2] = {
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{0, 0}, // RBIT
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{0, 1}, // REV16
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{0, 2}, // REV32
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{0, 3}, // REV64
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{0, 4}, // CLZ
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{0, 5}, // CLS
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};
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// Data-Processing (2 source)
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static const u32 Data2SrcEnc[] = {
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0x02, // UDIV
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0x03, // SDIV
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0x08, // LSLV
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0x09, // LSRV
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0x0A, // ASRV
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0x0B, // RORV
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0x10, // CRC32B
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0x11, // CRC32H
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0x12, // CRC32W
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0x14, // CRC32CB
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0x15, // CRC32CH
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0x16, // CRC32CW
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0x13, // CRC32X (64bit Only)
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0x17, // XRC32CX (64bit Only)
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};
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// Data-Processing (3 source)
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static const u32 Data3SrcEnc[][2] = {
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{0, 0}, // MADD
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{0, 1}, // MSUB
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{1, 0}, // SMADDL (64Bit Only)
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{1, 1}, // SMSUBL (64Bit Only)
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{2, 0}, // SMULH (64Bit Only)
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{5, 0}, // UMADDL (64Bit Only)
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{5, 1}, // UMSUBL (64Bit Only)
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{6, 0}, // UMULH (64Bit Only)
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};
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// Logical (shifted register)
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static const u32 LogicalEnc[][2] = {
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{0, 0}, // AND
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{0, 1}, // BIC
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{1, 0}, // OOR
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{1, 1}, // ORN
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{2, 0}, // EOR
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{2, 1}, // EON
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{3, 0}, // ANDS
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{3, 1}, // BICS
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};
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// Load/Store Exclusive
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static u32 LoadStoreExcEnc[][5] = {
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{0, 0, 0, 0, 0}, // STXRB
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{0, 0, 0, 0, 1}, // STLXRB
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{0, 0, 1, 0, 0}, // LDXRB
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{0, 0, 1, 0, 1}, // LDAXRB
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{0, 1, 0, 0, 1}, // STLRB
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{0, 1, 1, 0, 1}, // LDARB
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{1, 0, 0, 0, 0}, // STXRH
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{1, 0, 0, 0, 1}, // STLXRH
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{1, 0, 1, 0, 0}, // LDXRH
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{1, 0, 1, 0, 1}, // LDAXRH
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{1, 1, 0, 0, 1}, // STLRH
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{1, 1, 1, 0, 1}, // LDARH
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{2, 0, 0, 0, 0}, // STXR
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{3, 0, 0, 0, 0}, // (64bit) STXR
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{2, 0, 0, 0, 1}, // STLXR
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{3, 0, 0, 0, 1}, // (64bit) STLXR
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{2, 0, 0, 1, 0}, // STXP
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{3, 0, 0, 1, 0}, // (64bit) STXP
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{2, 0, 0, 1, 1}, // STLXP
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{3, 0, 0, 1, 1}, // (64bit) STLXP
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{2, 0, 1, 0, 0}, // LDXR
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{3, 0, 1, 0, 0}, // (64bit) LDXR
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{2, 0, 1, 0, 1}, // LDAXR
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{3, 0, 1, 0, 1}, // (64bit) LDAXR
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{2, 0, 1, 1, 0}, // LDXP
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{3, 0, 1, 1, 0}, // (64bit) LDXP
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{2, 0, 1, 1, 1}, // LDAXP
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{3, 0, 1, 1, 1}, // (64bit) LDAXP
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{2, 1, 0, 0, 1}, // STLR
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{3, 1, 0, 0, 1}, // (64bit) STLR
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{2, 1, 1, 0, 1}, // LDAR
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{3, 1, 1, 0, 1}, // (64bit) LDAR
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};
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void ARM64XEmitter::EncodeCompareBranchInst(u32 op, ARM64Reg Rt, const void* ptr)
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{
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bool b64Bit = Is64Bit(Rt);
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s64 distance = (s64)ptr - (s64(m_code) + 8);
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_assert_msg_(DYNA_REC, !(distance & 0x3), "%s: distance must be a multiple of 4: %lx", __FUNCTION__, distance);
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distance >>= 2;
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_assert_msg_(DYNA_REC, distance >= -0xFFFFF && distance < 0xFFFFF, "%s: Received too large distance: %lx", __FUNCTION__, distance);
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Rt = DecodeReg(Rt);
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Write32((b64Bit << 31) | (0x34 << 24) | (op << 24) | \
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(distance << 5) | Rt);
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}
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void ARM64XEmitter::EncodeTestBranchInst(u32 op, ARM64Reg Rt, u8 bits, const void* ptr)
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{
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bool b64Bit = Is64Bit(Rt);
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s64 distance = (s64)ptr - (s64(m_code) + 8);
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_assert_msg_(DYNA_REC, !(distance & 0x3), "%s: distance must be a multiple of 4: %lx", __FUNCTION__, distance);
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distance >>= 2;
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_assert_msg_(DYNA_REC, distance >= -0x3FFF && distance < 0x3FFF, "%s: Received too large distance: %lx", __FUNCTION__, distance);
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Rt = DecodeReg(Rt);
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Write32((b64Bit << 31) | (0x36 << 24) | (op << 24) | \
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(bits << 19) | (distance << 5) | Rt);
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}
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void ARM64XEmitter::EncodeUnconditionalBranchInst(u32 op, const void* ptr)
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{
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s64 distance = (s64)ptr - s64(m_code);
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_assert_msg_(DYNA_REC, !(distance & 0x3), "%s: distance must be a multiple of 4: %lx", __FUNCTION__, distance);
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distance >>= 2;
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_assert_msg_(DYNA_REC, distance >= -0x3FFFFFF && distance < 0x3FFFFFF, "%s: Received too large distance: %lx", __FUNCTION__, distance);
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Write32((op << 31) | (0x5 << 26) | (distance & 0x3FFFFFF));
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}
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void ARM64XEmitter::EncodeUnconditionalBranchInst(u32 opc, u32 op2, u32 op3, u32 op4, ARM64Reg Rn)
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{
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Rn = DecodeReg(Rn);
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Write32((0x6B << 25) | (opc << 21) | (op2 << 16) | (op3 << 10) | (Rn << 5) | op4);
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}
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void ARM64XEmitter::EncodeExceptionInst(u32 instenc, u32 imm)
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{
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_assert_msg_(DYNA_REC, !(imm & ~0xFFFF), "%s: Exception instruction too large immediate: %d", __FUNCTION__, imm);
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Write32((0xD4 << 24) | (ExcEnc[instenc][0] << 21) | (imm << 5) | (ExcEnc[instenc][1] << 2) | ExcEnc[instenc][2]);
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}
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void ARM64XEmitter::EncodeSystemInst(u32 op0, u32 op1, u32 CRn, u32 CRm, u32 op2, ARM64Reg Rt)
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{
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Write32((0x354 << 22) | (op0 << 19) | (op1 << 16) | (CRn << 12) | (CRm << 8) | (op2 << 5) | Rt);
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}
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void ARM64XEmitter::EncodeArithmeticInst(u32 instenc, bool flags, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Option)
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{
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Rd = DecodeReg(Rd);
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Rn = DecodeReg(Rn);
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Rm = DecodeReg(Rm);
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Write32((flags << 29) | (ArithEnc[instenc] << 21) | \
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(Option.GetType() == ArithOption::TYPE_EXTENDEDREG ? 1 << 21 : 0) | (Rm << 16) | Option.GetData() | (Rn << 5) | Rd);
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}
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void ARM64XEmitter::EncodeArithmeticCarryInst(u32 op, bool flags, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
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{
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bool b64Bit = Is64Bit(Rd);
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Rd = DecodeReg(Rd);
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Rm = DecodeReg(Rm);
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Rn = DecodeReg(Rn);
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Write32((b64Bit << 31) | (op << 30) | (flags << 29) | \
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(0xD0 << 21) | (Rm << 16) | (Rn << 5) | Rd);
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}
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void ARM64XEmitter::EncodeCondCompareImmInst(u32 op, ARM64Reg Rn, u32 imm, u32 nzcv, CCFlags cond)
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{
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bool b64Bit = Is64Bit(Rn);
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_assert_msg_(DYNA_REC, !(imm & ~0x1F), "%s: too large immediate: %d", __FUNCTION__, imm)
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_assert_msg_(DYNA_REC, !(nzcv & ~0xF), "%s: Flags out of range: %d", __FUNCTION__, nzcv)
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Rn = DecodeReg(Rn);
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Write32((b64Bit << 31) | (op << 30) | (1 << 29) | (0xD2 << 21) | \
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(imm << 16) | (cond << 12) | (1 << 11) | (Rn << 5) | nzcv);
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}
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void ARM64XEmitter::EncodeCondCompareRegInst(u32 op, ARM64Reg Rn, ARM64Reg Rm, u32 nzcv, CCFlags cond)
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{
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bool b64Bit = Is64Bit(Rm);
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_assert_msg_(DYNA_REC, !(nzcv & ~0xF), "%s: Flags out of range: %d", __FUNCTION__, nzcv)
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Rm = DecodeReg(Rm);
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Rn = DecodeReg(Rn);
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Write32((b64Bit << 31) | (op << 30) | (1 << 29) | (0xD2 << 21) | \
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(Rm << 16) | (cond << 12) | (Rn << 5) | nzcv);
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}
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void ARM64XEmitter::EncodeCondSelectInst(u32 instenc, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, CCFlags cond)
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{
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bool b64Bit = Is64Bit(Rd);
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Rd = DecodeReg(Rd);
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Rm = DecodeReg(Rm);
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Rn = DecodeReg(Rn);
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Write32((b64Bit << 31) | (CondSelectEnc[instenc][0] << 30) | \
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(0xD4 << 21) | (Rm << 16) | (cond << 12) | (CondSelectEnc[instenc][1] << 10) | \
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(Rn << 5) | Rd);
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}
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void ARM64XEmitter::EncodeData1SrcInst(u32 instenc, ARM64Reg Rd, ARM64Reg Rn)
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{
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bool b64Bit = Is64Bit(Rd);
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Rd = DecodeReg(Rd);
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Rn = DecodeReg(Rn);
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Write32((b64Bit << 31) | (0x2D6 << 21) | \
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(Data1SrcEnc[instenc][0] << 16) | (Data1SrcEnc[instenc][1] << 10) | \
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(Rn << 5) | Rd);
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}
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void ARM64XEmitter::EncodeData2SrcInst(u32 instenc, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
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{
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bool b64Bit = Is64Bit(Rd);
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Rd = DecodeReg(Rd);
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Rm = DecodeReg(Rm);
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Rn = DecodeReg(Rn);
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Write32((b64Bit << 31) | (0x0D6 << 21) | \
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(Rm << 16) | (Data2SrcEnc[instenc] << 10) | \
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(Rn << 5) | Rd);
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}
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void ARM64XEmitter::EncodeData3SrcInst(u32 instenc, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra)
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{
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bool b64Bit = Is64Bit(Rd);
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Rd = DecodeReg(Rd);
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Rm = DecodeReg(Rm);
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Rn = DecodeReg(Rn);
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Ra = DecodeReg(Ra);
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Write32((b64Bit << 31) | (0xD8 << 21) | (Data3SrcEnc[instenc][0] << 21) | \
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(Rm << 16) | (Data3SrcEnc[instenc][1] << 15) | \
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(Ra << 10) | (Rn << 5) | Rd);
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}
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void ARM64XEmitter::EncodeLogicalInst(u32 instenc, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift)
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{
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Rd = DecodeReg(Rd);
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Rm = DecodeReg(Rm);
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Rn = DecodeReg(Rn);
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Write32((LogicalEnc[instenc][0] << 29) | (0x50 << 21) | (LogicalEnc[instenc][1] << 21) | \
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Shift.GetData() | (Rm << 16) | (Rn << 5) | Rd);
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}
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void ARM64XEmitter::EncodeLoadRegisterInst(u32 bitop, ARM64Reg Rt, u32 imm)
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{
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bool b64Bit = Is64Bit(Rt);
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bool bVec = IsVector(Rt);
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_assert_msg_(DYNA_REC, !(imm & 0xFFFFF), "%s: offset too large %d", __FUNCTION__, imm);
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Rt = DecodeReg(Rt);
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if (b64Bit && bitop != 0x2) // LDRSW(0x2) uses 64bit reg, doesn't have 64bit bit set
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bitop |= 0x1;
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Write32((bitop << 30) | (bVec << 26) | (0x18 << 24) | (imm << 5) | Rt);
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}
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void ARM64XEmitter::EncodeLoadStoreExcInst(u32 instenc,
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ARM64Reg Rs, ARM64Reg Rt2, ARM64Reg Rn, ARM64Reg Rt)
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{
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Rs = DecodeReg(Rs);
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Rt2 = DecodeReg(Rt2);
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Rn = DecodeReg(Rn);
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Rt = DecodeReg(Rt);
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Write32((LoadStoreExcEnc[instenc][0] << 30) | (0x8 << 24) | (LoadStoreExcEnc[instenc][1] << 23) | \
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(LoadStoreExcEnc[instenc][2] << 22) | (LoadStoreExcEnc[instenc][3] << 21) | (Rs << 16) | \
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(LoadStoreExcEnc[instenc][4] << 15) | (Rt2 << 10) | (Rn << 5) | Rt);
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}
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void ARM64XEmitter::EncodeLoadStorePairedInst(u32 op, ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn, u32 imm)
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{
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bool b64Bit = Is64Bit(Rt);
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bool b128Bit = Is128Bit(Rt);
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bool bVec = IsVector(Rt);
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if (b128Bit)
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imm >>= 4;
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else if (b64Bit)
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imm >>= 3;
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else
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imm >>= 2;
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_assert_msg_(DYNA_REC, !(imm & ~0xF), "%s: offset too large %d", __FUNCTION__, imm);
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u32 opc = 0;
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if (b128Bit)
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opc = 2;
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else if (b64Bit && bVec)
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opc = 1;
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else if (b64Bit && !bVec)
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opc = 2;
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Rt = DecodeReg(Rt);
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Rt2 = DecodeReg(Rt2);
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Rn = DecodeReg(Rn);
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Write32((opc << 30) | (bVec << 26) | (op << 22) | (imm << 15) | (Rt2 << 10) | (Rn << 5) | Rt);
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}
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void ARM64XEmitter::EncodeLoadStoreIndexedInst(u32 op, u32 op2, ARM64Reg Rt, ARM64Reg Rn, s32 imm)
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{
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bool b64Bit = Is64Bit(Rt);
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bool bVec = IsVector(Rt);
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u32 offset = imm & 0x1FF;
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_assert_msg_(DYNA_REC, imm < -256 || imm > 255, "%s: offset too large %d", __FUNCTION__, imm);
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Rt = DecodeReg(Rt);
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Rn = DecodeReg(Rn);
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Write32((b64Bit << 30) | (op << 22) | (bVec << 26) | (offset << 12) | (op2 << 10) | (Rn << 5) | Rt);
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}
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void ARM64XEmitter::EncodeLoadStoreIndexedInst(u32 op, ARM64Reg Rt, ARM64Reg Rn, s32 imm, u8 size)
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{
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bool b64Bit = Is64Bit(Rt);
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bool bVec = IsVector(Rt);
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if (size == 64)
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imm >>= 3;
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else if (size == 32)
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imm >>= 2;
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else if (size == 16)
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imm >>= 1;
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_assert_msg_(DYNA_REC, imm < 0, "%s(INDEX_UNSIGNED): offset must be positive", __FUNCTION__);
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_assert_msg_(DYNA_REC, !(imm & ~0xFFF), "%s(INDEX_UNSIGNED): offset too large %d", __FUNCTION__, imm);
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Rt = DecodeReg(Rt);
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Rn = DecodeReg(Rn);
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Write32((b64Bit << 30) | (op << 22) | (bVec << 26) | (imm << 10) | (Rn << 5) | Rt);
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}
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void ARM64XEmitter::EncodeMOVWideInst(u32 op, ARM64Reg Rd, u32 imm, ShiftAmount pos)
|
|
{
|
|
bool b64Bit = Is64Bit(Rd);
|
|
|
|
_assert_msg_(DYNA_REC, !(imm & ~0xFFFF), "%s: immediate out of range: %d", __FUNCTION__, imm);
|
|
|
|
Rd = DecodeReg(Rd);
|
|
Write32((b64Bit << 31) | (op << 29) | (0x25 << 23) | (pos << 21) | (imm << 5) | Rd);
|
|
}
|
|
|
|
void ARM64XEmitter::EncodeBitfieldMOVInst(u32 op, ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms)
|
|
{
|
|
bool b64Bit = Is64Bit(Rd);
|
|
|
|
Rd = DecodeReg(Rd);
|
|
Rn = DecodeReg(Rn);
|
|
Write32((b64Bit << 31) | (op << 29) | (0x26 << 23) | (b64Bit << 22) | \
|
|
(immr << 16) | (imms << 10) | (Rn << 5) | Rd);
|
|
}
|
|
|
|
void ARM64XEmitter::EncodeLoadStoreRegisterOffset(u32 size, u32 opc, ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend)
|
|
{
|
|
Rt = DecodeReg(Rt);
|
|
Rn = DecodeReg(Rn);
|
|
Rm = DecodeReg(Rm);
|
|
|
|
Write32((size << 30) | (opc << 22) | (0x1C1 << 21) | (Rm << 16) | \
|
|
(extend << 13) | (1 << 11) | (Rn << 5) | Rt);
|
|
}
|
|
|
|
void ARM64XEmitter::EncodeAddSubImmInst(u32 op, bool flags, u32 shift, u32 imm, ARM64Reg Rn, ARM64Reg Rd)
|
|
{
|
|
bool b64Bit = Is64Bit(Rd);
|
|
|
|
_assert_msg_(DYNA_REC, !(imm & ~0xFFF), "%s: immediate too large: %x", __FUNCTION__, imm);
|
|
|
|
Rd = DecodeReg(Rd);
|
|
Rn = DecodeReg(Rn);
|
|
Write32((b64Bit << 31) | (op << 30) | (flags << 29) | (0x11 << 24) | (shift << 22) | \
|
|
(imm << 10) | (Rn << 5) | Rd);
|
|
}
|
|
|
|
void ARM64XEmitter::EncodeLogicalImmInst(u32 op, ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms)
|
|
{
|
|
// Sometimes Rd is fixed to SP, but can still be 32bit or 64bit.
|
|
// Use Rn to determine bitness here.
|
|
bool b64Bit = Is64Bit(Rn);
|
|
|
|
Rd = DecodeReg(Rd);
|
|
Rn = DecodeReg(Rn);
|
|
|
|
Write32((b64Bit << 31) | (op << 29) | (0x24 << 23) | (b64Bit << 22) | \
|
|
(immr << 16) | (imms << 10) | (Rn << 5) | Rd);
|
|
}
|
|
|
|
void ARM64XEmitter::EncodeLoadStorePair(u32 op, u32 load, IndexType type, ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn, s32 imm)
|
|
{
|
|
bool b64Bit = Is64Bit(Rt);
|
|
u32 type_encode = 0;
|
|
|
|
switch (type)
|
|
{
|
|
case INDEX_UNSIGNED:
|
|
type_encode = 0b010;
|
|
break;
|
|
case INDEX_POST:
|
|
type_encode = 0b001;
|
|
break;
|
|
case INDEX_PRE:
|
|
type_encode = 0b011;
|
|
break;
|
|
}
|
|
|
|
if (b64Bit)
|
|
{
|
|
op |= 0b10;
|
|
imm >>= 3;
|
|
}
|
|
else
|
|
{
|
|
imm >>= 2;
|
|
}
|
|
|
|
Rt = DecodeReg(Rt);
|
|
Rt2 = DecodeReg(Rt2);
|
|
Rn = DecodeReg(Rn);
|
|
|
|
Write32((op << 30) | (0b101 << 27) | (type_encode << 23) | (load << 22) | \
|
|
((imm & 0x7F) << 15) | (Rt2 << 10) | (Rn << 5) | Rt);
|
|
}
|
|
|
|
void ARM64XEmitter::EncodeAddressInst(u32 op, ARM64Reg Rd, s32 imm)
|
|
{
|
|
Rd = DecodeReg(Rd);
|
|
|
|
Write32((op << 31) | ((imm & 0x3) << 29) | (0b10000 << 24) | \
|
|
((imm & 0x1FFFFC) << 3) | Rd);
|
|
}
|
|
|
|
// FixupBranch branching
|
|
void ARM64XEmitter::SetJumpTarget(FixupBranch const& branch)
|
|
{
|
|
bool Not = false;
|
|
u32 inst = 0;
|
|
s64 distance = (s64)(m_code - branch.ptr);
|
|
distance >>= 2;
|
|
|
|
switch (branch.type)
|
|
{
|
|
case 1: // CBNZ
|
|
Not = true;
|
|
case 0: // CBZ
|
|
{
|
|
_assert_msg_(DYNA_REC, distance >= -0xFFFFF && distance < 0xFFFFF, "%s(%d): Received too large distance: %lx", __FUNCTION__, branch.type, distance);
|
|
bool b64Bit = Is64Bit(branch.reg);
|
|
ARM64Reg reg = DecodeReg(branch.reg);
|
|
inst = (b64Bit << 31) | (0x1A << 25) | (Not << 24) | (distance << 5) | reg;
|
|
}
|
|
break;
|
|
case 2: // B (conditional)
|
|
_assert_msg_(DYNA_REC, distance >= -0xFFFFF && distance < 0xFFFFF, "%s(%d): Received too large distance: %lx", __FUNCTION__, branch.type, distance);
|
|
inst = (0x2A << 25) | (distance << 5) | branch.cond;
|
|
break;
|
|
case 4: // TBNZ
|
|
Not = true;
|
|
case 3: // TBZ
|
|
{
|
|
_assert_msg_(DYNA_REC, distance >= -0x3FFF && distance < 0x3FFF, "%s(%d): Received too large distance: %lx", __FUNCTION__, branch.type, distance);
|
|
ARM64Reg reg = DecodeReg(branch.reg);
|
|
inst = ((branch.bit & 0x20) << 26) | (0x1B << 25) | (Not << 24) | ((branch.bit & 0x1F) << 19) | (distance << 5) | reg;
|
|
}
|
|
break;
|
|
case 5: // B (uncoditional)
|
|
_assert_msg_(DYNA_REC, distance >= -0x3FFFFFF && distance < 0x3FFFFFF, "%s(%d): Received too large distance: %lx", __FUNCTION__, branch.type, distance);
|
|
inst = (0x5 << 26) | distance;
|
|
break;
|
|
case 6: // BL (unconditional)
|
|
_assert_msg_(DYNA_REC, distance >= -0x3FFFFFF && distance < 0x3FFFFFF, "%s(%d): Received too large distance: %lx", __FUNCTION__, branch.type, distance);
|
|
inst = (0x25 << 26) | distance;
|
|
break;
|
|
}
|
|
*(u32*)branch.ptr = inst;
|
|
}
|
|
|
|
FixupBranch ARM64XEmitter::CBZ(ARM64Reg Rt)
|
|
{
|
|
FixupBranch branch;
|
|
branch.ptr = m_code;
|
|
branch.type = 0;
|
|
branch.reg = Rt;
|
|
HINT(HINT_NOP);
|
|
return branch;
|
|
}
|
|
FixupBranch ARM64XEmitter::CBNZ(ARM64Reg Rt)
|
|
{
|
|
FixupBranch branch;
|
|
branch.ptr = m_code;
|
|
branch.type = 1;
|
|
branch.reg = Rt;
|
|
HINT(HINT_NOP);
|
|
return branch;
|
|
}
|
|
FixupBranch ARM64XEmitter::B(CCFlags cond)
|
|
{
|
|
FixupBranch branch;
|
|
branch.ptr = m_code;
|
|
branch.type = 2;
|
|
branch.cond = cond;
|
|
HINT(HINT_NOP);
|
|
return branch;
|
|
}
|
|
FixupBranch ARM64XEmitter::TBZ(ARM64Reg Rt, u8 bit)
|
|
{
|
|
FixupBranch branch;
|
|
branch.ptr = m_code;
|
|
branch.type = 3;
|
|
branch.reg = Rt;
|
|
branch.bit = bit;
|
|
HINT(HINT_NOP);
|
|
return branch;
|
|
}
|
|
FixupBranch ARM64XEmitter::TBNZ(ARM64Reg Rt, u8 bit)
|
|
{
|
|
FixupBranch branch;
|
|
branch.ptr = m_code;
|
|
branch.type = 4;
|
|
branch.reg = Rt;
|
|
branch.bit = bit;
|
|
HINT(HINT_NOP);
|
|
return branch;
|
|
}
|
|
FixupBranch ARM64XEmitter::B()
|
|
{
|
|
FixupBranch branch;
|
|
branch.ptr = m_code;
|
|
branch.type = 5;
|
|
HINT(HINT_NOP);
|
|
return branch;
|
|
}
|
|
FixupBranch ARM64XEmitter::BL()
|
|
{
|
|
FixupBranch branch;
|
|
branch.ptr = m_code;
|
|
branch.type = 6;
|
|
HINT(HINT_NOP);
|
|
return branch;
|
|
}
|
|
|
|
// Compare and Branch
|
|
void ARM64XEmitter::CBZ(ARM64Reg Rt, const void* ptr)
|
|
{
|
|
EncodeCompareBranchInst(0, Rt, ptr);
|
|
}
|
|
void ARM64XEmitter::CBNZ(ARM64Reg Rt, const void* ptr)
|
|
{
|
|
EncodeCompareBranchInst(1, Rt, ptr);
|
|
}
|
|
|
|
// Conditional Branch
|
|
void ARM64XEmitter::B(CCFlags cond, const void* ptr)
|
|
{
|
|
s64 distance = (s64)ptr - (s64(m_code) + 8);
|
|
distance >>= 2;
|
|
|
|
_assert_msg_(DYNA_REC, distance >= -0xFFFFF && distance < 0xFFFFF, "%s: Received too large distance: %lx", __FUNCTION__, distance);
|
|
|
|
Write32((0x54 << 24) | (distance << 5) | cond);
|
|
}
|
|
|
|
// Test and Branch
|
|
void ARM64XEmitter::TBZ(ARM64Reg Rt, u8 bits, const void* ptr)
|
|
{
|
|
EncodeTestBranchInst(0, Rt, bits, ptr);
|
|
}
|
|
void ARM64XEmitter::TBNZ(ARM64Reg Rt, u8 bits, const void* ptr)
|
|
{
|
|
EncodeTestBranchInst(1, Rt, bits, ptr);
|
|
}
|
|
|
|
// Unconditional Branch
|
|
void ARM64XEmitter::B(const void* ptr)
|
|
{
|
|
EncodeUnconditionalBranchInst(0, ptr);
|
|
}
|
|
void ARM64XEmitter::BL(const void* ptr)
|
|
{
|
|
EncodeUnconditionalBranchInst(1, ptr);
|
|
}
|
|
|
|
// Unconditional Branch (register)
|
|
void ARM64XEmitter::BR(ARM64Reg Rn)
|
|
{
|
|
EncodeUnconditionalBranchInst(0, 0x1F, 0, 0, Rn);
|
|
}
|
|
void ARM64XEmitter::BLR(ARM64Reg Rn)
|
|
{
|
|
EncodeUnconditionalBranchInst(1, 0x1F, 0, 0, Rn);
|
|
}
|
|
void ARM64XEmitter::RET(ARM64Reg Rn)
|
|
{
|
|
EncodeUnconditionalBranchInst(2, 0x1F, 0, 0, Rn);
|
|
}
|
|
void ARM64XEmitter::ERET()
|
|
{
|
|
EncodeUnconditionalBranchInst(4, 0x1F, 0, 0, SP);
|
|
}
|
|
void ARM64XEmitter::DRPS()
|
|
{
|
|
EncodeUnconditionalBranchInst(5, 0x1F, 0, 0, SP);
|
|
}
|
|
|
|
// Exception generation
|
|
void ARM64XEmitter::SVC(u32 imm)
|
|
{
|
|
EncodeExceptionInst(0, imm);
|
|
}
|
|
|
|
void ARM64XEmitter::HVC(u32 imm)
|
|
{
|
|
EncodeExceptionInst(1, imm);
|
|
}
|
|
|
|
void ARM64XEmitter::SMC(u32 imm)
|
|
{
|
|
EncodeExceptionInst(2, imm);
|
|
}
|
|
|
|
void ARM64XEmitter::BRK(u32 imm)
|
|
{
|
|
EncodeExceptionInst(3, imm);
|
|
}
|
|
|
|
void ARM64XEmitter::HLT(u32 imm)
|
|
{
|
|
EncodeExceptionInst(4, imm);
|
|
}
|
|
|
|
void ARM64XEmitter::DCPS1(u32 imm)
|
|
{
|
|
EncodeExceptionInst(5, imm);
|
|
}
|
|
|
|
void ARM64XEmitter::DCPS2(u32 imm)
|
|
{
|
|
EncodeExceptionInst(6, imm);
|
|
}
|
|
|
|
void ARM64XEmitter::DCPS3(u32 imm)
|
|
{
|
|
EncodeExceptionInst(7, imm);
|
|
}
|
|
|
|
// System
|
|
void ARM64XEmitter::_MSR(PStateField field, u8 imm)
|
|
{
|
|
u32 op1 = 0, op2 = 0;
|
|
switch (field)
|
|
{
|
|
case FIELD_SPSel:
|
|
op1 = 0; op2 = 5;
|
|
break;
|
|
case FIELD_DAIFSet:
|
|
op1 = 3; op2 = 6;
|
|
break;
|
|
case FIELD_DAIFClr:
|
|
op1 = 3; op2 = 7;
|
|
break;
|
|
}
|
|
EncodeSystemInst(0, op1, 3, imm, op2, WSP);
|
|
}
|
|
void ARM64XEmitter::HINT(SystemHint op)
|
|
{
|
|
EncodeSystemInst(0, 3, 2, 0, op, WSP);
|
|
}
|
|
void ARM64XEmitter::CLREX()
|
|
{
|
|
EncodeSystemInst(0, 3, 3, 0, 2, WSP);
|
|
}
|
|
void ARM64XEmitter::DSB(BarrierType type)
|
|
{
|
|
EncodeSystemInst(0, 3, 3, type, 4, WSP);
|
|
}
|
|
void ARM64XEmitter::DMB(BarrierType type)
|
|
{
|
|
EncodeSystemInst(0, 3, 3, type, 5, WSP);
|
|
}
|
|
void ARM64XEmitter::ISB(BarrierType type)
|
|
{
|
|
EncodeSystemInst(0, 3, 3, type, 6, WSP);
|
|
}
|
|
|
|
// Add/Subtract (extended register)
|
|
void ARM64XEmitter::ADD(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
ADD(Rd, Rn, Rm, ArithOption(Rd));
|
|
}
|
|
|
|
void ARM64XEmitter::ADD(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Option)
|
|
{
|
|
EncodeArithmeticInst(0, false, Rd, Rn, Rm, Option);
|
|
}
|
|
|
|
void ARM64XEmitter::ADDS(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeArithmeticInst(0, true, Rd, Rn, Rm, ArithOption(Rd));
|
|
}
|
|
|
|
void ARM64XEmitter::ADDS(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Option)
|
|
{
|
|
EncodeArithmeticInst(0, true, Rd, Rn, Rm, Option);
|
|
}
|
|
|
|
void ARM64XEmitter::SUB(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
SUB(Rd, Rn, Rm, ArithOption(Rd));
|
|
}
|
|
|
|
void ARM64XEmitter::SUB(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Option)
|
|
{
|
|
EncodeArithmeticInst(1, false, Rd, Rn, Rm, Option);
|
|
}
|
|
|
|
void ARM64XEmitter::SUBS(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeArithmeticInst(1, false, Rd, Rn, Rm, ArithOption(Rd));
|
|
}
|
|
|
|
void ARM64XEmitter::SUBS(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Option)
|
|
{
|
|
EncodeArithmeticInst(1, true, Rd, Rn, Rm, Option);
|
|
}
|
|
|
|
void ARM64XEmitter::CMN(ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
CMN(Rn, Rm, ArithOption(Rn));
|
|
}
|
|
|
|
void ARM64XEmitter::CMN(ARM64Reg Rn, ARM64Reg Rm, ArithOption Option)
|
|
{
|
|
EncodeArithmeticInst(0, true, SP, Rn, Rm, Option);
|
|
}
|
|
|
|
void ARM64XEmitter::CMP(ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
CMP(Rn, Rm, ArithOption(Rn));
|
|
}
|
|
|
|
void ARM64XEmitter::CMP(ARM64Reg Rn, ARM64Reg Rm, ArithOption Option)
|
|
{
|
|
EncodeArithmeticInst(1, true, SP, Rn, Rm, Option);
|
|
}
|
|
|
|
// Add/Subtract (with carry)
|
|
void ARM64XEmitter::ADC(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeArithmeticCarryInst(0, false, Rd, Rn, Rm);
|
|
}
|
|
void ARM64XEmitter::ADCS(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeArithmeticCarryInst(0, true, Rd, Rn, Rm);
|
|
}
|
|
void ARM64XEmitter::SBC(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeArithmeticCarryInst(1, false, Rd, Rn, Rm);
|
|
}
|
|
void ARM64XEmitter::SBCS(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeArithmeticCarryInst(1, true, Rd, Rn, Rm);
|
|
}
|
|
|
|
// Conditional Compare (immediate)
|
|
void ARM64XEmitter::CCMN(ARM64Reg Rn, u32 imm, u32 nzcv, CCFlags cond)
|
|
{
|
|
EncodeCondCompareImmInst(0, Rn, imm, nzcv, cond);
|
|
}
|
|
void ARM64XEmitter::CCMP(ARM64Reg Rn, u32 imm, u32 nzcv, CCFlags cond)
|
|
{
|
|
EncodeCondCompareImmInst(1, Rn, imm, nzcv, cond);
|
|
}
|
|
|
|
// Conditiona Compare (register)
|
|
void ARM64XEmitter::CCMN(ARM64Reg Rn, ARM64Reg Rm, u32 nzcv, CCFlags cond)
|
|
{
|
|
EncodeCondCompareRegInst(0, Rn, Rm, nzcv, cond);
|
|
}
|
|
void ARM64XEmitter::CCMP(ARM64Reg Rn, ARM64Reg Rm, u32 nzcv, CCFlags cond)
|
|
{
|
|
EncodeCondCompareRegInst(1, Rn, Rm, nzcv, cond);
|
|
}
|
|
|
|
// Conditional Select
|
|
void ARM64XEmitter::CSEL(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, CCFlags cond)
|
|
{
|
|
EncodeCondSelectInst(0, Rd, Rn, Rm, cond);
|
|
}
|
|
void ARM64XEmitter::CSINC(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, CCFlags cond)
|
|
{
|
|
EncodeCondSelectInst(1, Rd, Rn, Rm, cond);
|
|
}
|
|
void ARM64XEmitter::CSINV(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, CCFlags cond)
|
|
{
|
|
EncodeCondSelectInst(2, Rd, Rn, Rm, cond);
|
|
}
|
|
void ARM64XEmitter::CSNEG(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, CCFlags cond)
|
|
{
|
|
EncodeCondSelectInst(3, Rd, Rn, Rm, cond);
|
|
}
|
|
|
|
// Data-Processing 1 source
|
|
void ARM64XEmitter::RBIT(ARM64Reg Rd, ARM64Reg Rn)
|
|
{
|
|
EncodeData1SrcInst(0, Rd, Rn);
|
|
}
|
|
void ARM64XEmitter::REV16(ARM64Reg Rd, ARM64Reg Rn)
|
|
{
|
|
EncodeData1SrcInst(1, Rd, Rn);
|
|
}
|
|
void ARM64XEmitter::REV32(ARM64Reg Rd, ARM64Reg Rn)
|
|
{
|
|
EncodeData1SrcInst(2, Rd, Rn);
|
|
}
|
|
void ARM64XEmitter::REV64(ARM64Reg Rd, ARM64Reg Rn)
|
|
{
|
|
EncodeData1SrcInst(3, Rd, Rn);
|
|
}
|
|
void ARM64XEmitter::CLZ(ARM64Reg Rd, ARM64Reg Rn)
|
|
{
|
|
EncodeData1SrcInst(4, Rd, Rn);
|
|
}
|
|
void ARM64XEmitter::CLS(ARM64Reg Rd, ARM64Reg Rn)
|
|
{
|
|
EncodeData1SrcInst(5, Rd, Rn);
|
|
}
|
|
|
|
// Data-Processing 2 source
|
|
void ARM64XEmitter::UDIV(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeData2SrcInst(0, Rd, Rn, Rm);
|
|
}
|
|
void ARM64XEmitter::SDIV(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeData2SrcInst(1, Rd, Rn, Rm);
|
|
}
|
|
void ARM64XEmitter::LSLV(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeData2SrcInst(2, Rd, Rn, Rm);
|
|
}
|
|
void ARM64XEmitter::LSRV(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeData2SrcInst(3, Rd, Rn, Rm);
|
|
}
|
|
void ARM64XEmitter::ASRV(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeData2SrcInst(4, Rd, Rn, Rm);
|
|
}
|
|
void ARM64XEmitter::RORV(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeData2SrcInst(5, Rd, Rn, Rm);
|
|
}
|
|
void ARM64XEmitter::CRC32B(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeData2SrcInst(6, Rd, Rn, Rm);
|
|
}
|
|
void ARM64XEmitter::CRC32H(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeData2SrcInst(7, Rd, Rn, Rm);
|
|
}
|
|
void ARM64XEmitter::CRC32W(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeData2SrcInst(8, Rd, Rn, Rm);
|
|
}
|
|
void ARM64XEmitter::CRC32CB(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeData2SrcInst(9, Rd, Rn, Rm);
|
|
}
|
|
void ARM64XEmitter::CRC32CH(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeData2SrcInst(10, Rd, Rn, Rm);
|
|
}
|
|
void ARM64XEmitter::CRC32CW(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeData2SrcInst(11, Rd, Rn, Rm);
|
|
}
|
|
void ARM64XEmitter::CRC32X(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeData2SrcInst(12, Rd, Rn, Rm);
|
|
}
|
|
void ARM64XEmitter::CRC32CX(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeData2SrcInst(13, Rd, Rn, Rm);
|
|
}
|
|
|
|
// Data-Processing 3 source
|
|
void ARM64XEmitter::MADD(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra)
|
|
{
|
|
EncodeData3SrcInst(0, Rd, Rn, Rm, Ra);
|
|
}
|
|
void ARM64XEmitter::MSUB(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra)
|
|
{
|
|
EncodeData3SrcInst(1, Rd, Rn, Rm, Ra);
|
|
}
|
|
void ARM64XEmitter::SMADDL(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra)
|
|
{
|
|
EncodeData3SrcInst(2, Rd, Rn, Rm, Ra);
|
|
}
|
|
void ARM64XEmitter::SMSUBL(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra)
|
|
{
|
|
EncodeData3SrcInst(3, Rd, Rn, Rm, Ra);
|
|
}
|
|
void ARM64XEmitter::SMULH(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra)
|
|
{
|
|
EncodeData3SrcInst(4, Rd, Rn, Rm, Ra);
|
|
}
|
|
void ARM64XEmitter::UMADDL(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra)
|
|
{
|
|
EncodeData3SrcInst(5, Rd, Rn, Rm, Ra);
|
|
}
|
|
void ARM64XEmitter::UMSUBL(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra)
|
|
{
|
|
EncodeData3SrcInst(6, Rd, Rn, Rm, Ra);
|
|
}
|
|
void ARM64XEmitter::UMULH(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra)
|
|
{
|
|
EncodeData3SrcInst(7, Rd, Rn, Rm, Ra);
|
|
}
|
|
void ARM64XEmitter::MUL(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeData3SrcInst(0, Rd, Rn, Rm, SP);
|
|
}
|
|
void ARM64XEmitter::MNEG(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
|
|
{
|
|
EncodeData3SrcInst(1, Rd, Rn, Rm, SP);
|
|
}
|
|
|
|
// Logical (shifted register)
|
|
void ARM64XEmitter::AND(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift)
|
|
{
|
|
EncodeLogicalInst(0, Rd, Rn, Rm, Shift);
|
|
}
|
|
void ARM64XEmitter::BIC(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift)
|
|
{
|
|
EncodeLogicalInst(1, Rd, Rn, Rm, Shift);
|
|
}
|
|
void ARM64XEmitter::ORR(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift)
|
|
{
|
|
EncodeLogicalInst(2, Rd, Rn, Rm, Shift);
|
|
}
|
|
void ARM64XEmitter::ORN(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift)
|
|
{
|
|
EncodeLogicalInst(3, Rd, Rn, Rm, Shift);
|
|
}
|
|
void ARM64XEmitter::EOR(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift)
|
|
{
|
|
EncodeLogicalInst(4, Rd, Rn, Rm, Shift);
|
|
}
|
|
void ARM64XEmitter::EON(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift)
|
|
{
|
|
EncodeLogicalInst(5, Rd, Rn, Rm, Shift);
|
|
}
|
|
void ARM64XEmitter::ANDS(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift)
|
|
{
|
|
EncodeLogicalInst(6, Rd, Rn, Rm, Shift);
|
|
}
|
|
void ARM64XEmitter::BICS(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift)
|
|
{
|
|
EncodeLogicalInst(7, Rd, Rn, Rm, Shift);
|
|
}
|
|
void ARM64XEmitter::MOV(ARM64Reg Rd, ARM64Reg Rm)
|
|
{
|
|
ORR(Rd, Is64Bit(Rd) ? SP : WSP, Rm, ArithOption(Rm, ST_LSL, 0));
|
|
}
|
|
void ARM64XEmitter::MVN(ARM64Reg Rd, ARM64Reg Rm)
|
|
{
|
|
ORN(Rd, Is64Bit(Rd) ? SP : WSP, Rm, ArithOption(Rm, ST_LSL, 0));
|
|
}
|
|
|
|
// Logical (immediate)
|
|
void ARM64XEmitter::AND(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms)
|
|
{
|
|
EncodeLogicalImmInst(0, Rd, Rn, immr, imms);
|
|
}
|
|
void ARM64XEmitter::ANDS(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms)
|
|
{
|
|
EncodeLogicalImmInst(3, Rd, Rn, immr, imms);
|
|
}
|
|
void ARM64XEmitter::EOR(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms)
|
|
{
|
|
EncodeLogicalImmInst(2, Rd, Rn, immr, imms);
|
|
}
|
|
void ARM64XEmitter::ORR(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms)
|
|
{
|
|
EncodeLogicalImmInst(1, Rd, Rn, immr, imms);
|
|
}
|
|
void ARM64XEmitter::TST(ARM64Reg Rn, u32 immr, u32 imms)
|
|
{
|
|
EncodeLogicalImmInst(3, SP, Rn, immr, imms);
|
|
}
|
|
|
|
// Add/subtract (immediate)
|
|
void ARM64XEmitter::ADD(ARM64Reg Rd, ARM64Reg Rn, u32 imm, bool shift)
|
|
{
|
|
EncodeAddSubImmInst(0, false, shift, imm, Rn, Rd);
|
|
}
|
|
void ARM64XEmitter::ADDS(ARM64Reg Rd, ARM64Reg Rn, u32 imm, bool shift)
|
|
{
|
|
EncodeAddSubImmInst(0, true, shift, imm, Rn, Rd);
|
|
}
|
|
void ARM64XEmitter::SUB(ARM64Reg Rd, ARM64Reg Rn, u32 imm, bool shift)
|
|
{
|
|
EncodeAddSubImmInst(1, false, shift, imm, Rn, Rd);
|
|
}
|
|
void ARM64XEmitter::SUBS(ARM64Reg Rd, ARM64Reg Rn, u32 imm, bool shift)
|
|
{
|
|
EncodeAddSubImmInst(1, true, shift, imm, Rn, Rd);
|
|
}
|
|
void ARM64XEmitter::CMP(ARM64Reg Rn, u32 imm, bool shift)
|
|
{
|
|
EncodeAddSubImmInst(1, true, shift, imm, Rn, Is64Bit(Rn) ? SP : WSP);
|
|
}
|
|
|
|
// Data Processing (Immediate)
|
|
void ARM64XEmitter::MOVZ(ARM64Reg Rd, u32 imm, ShiftAmount pos)
|
|
{
|
|
EncodeMOVWideInst(2, Rd, imm, pos);
|
|
}
|
|
void ARM64XEmitter::MOVN(ARM64Reg Rd, u32 imm, ShiftAmount pos)
|
|
{
|
|
EncodeMOVWideInst(0, Rd, imm, pos);
|
|
}
|
|
void ARM64XEmitter::MOVK(ARM64Reg Rd, u32 imm, ShiftAmount pos)
|
|
{
|
|
EncodeMOVWideInst(3, Rd, imm, pos);
|
|
}
|
|
|
|
// Bitfield move
|
|
void ARM64XEmitter::BFM(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms)
|
|
{
|
|
EncodeBitfieldMOVInst(1, Rd, Rn, immr, imms);
|
|
}
|
|
void ARM64XEmitter::SBFM(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms)
|
|
{
|
|
EncodeBitfieldMOVInst(0, Rd, Rn, immr, imms);
|
|
}
|
|
void ARM64XEmitter::UBFM(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms)
|
|
{
|
|
EncodeBitfieldMOVInst(2, Rd, Rn, immr, imms);
|
|
}
|
|
void ARM64XEmitter::SXTB(ARM64Reg Rd, ARM64Reg Rn)
|
|
{
|
|
SBFM(Rd, Rn, 0, 7);
|
|
}
|
|
void ARM64XEmitter::SXTH(ARM64Reg Rd, ARM64Reg Rn)
|
|
{
|
|
SBFM(Rd, Rn, 0, 15);
|
|
}
|
|
void ARM64XEmitter::SXTW(ARM64Reg Rd, ARM64Reg Rn)
|
|
{
|
|
_assert_msg_(DYNA_REC, Is64Bit(Rd), "%s requires 64bit register as destination", __FUNCTION__);
|
|
|
|
SBFM(Rd, Rn, 0, 31);
|
|
}
|
|
|
|
// Load Register (Literal)
|
|
void ARM64XEmitter::LDR(ARM64Reg Rt, u32 imm)
|
|
{
|
|
EncodeLoadRegisterInst(0, Rt, imm);
|
|
}
|
|
void ARM64XEmitter::LDRSW(ARM64Reg Rt, u32 imm)
|
|
{
|
|
EncodeLoadRegisterInst(2, Rt, imm);
|
|
}
|
|
void ARM64XEmitter::PRFM(ARM64Reg Rt, u32 imm)
|
|
{
|
|
EncodeLoadRegisterInst(3, Rt, imm);
|
|
}
|
|
|
|
// Load/Store pair
|
|
void ARM64XEmitter::LDP(IndexType type, ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn, s32 imm)
|
|
{
|
|
EncodeLoadStorePair(0, 1, type, Rt, Rt2, Rn, imm);
|
|
}
|
|
void ARM64XEmitter::LDPSW(IndexType type, ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn, s32 imm)
|
|
{
|
|
EncodeLoadStorePair(1, 1, type, Rt, Rt2, Rn, imm);
|
|
}
|
|
void ARM64XEmitter::STP(IndexType type, ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn, s32 imm)
|
|
{
|
|
EncodeLoadStorePair(0, 0, type, Rt, Rt2, Rn, imm);
|
|
}
|
|
|
|
// Load/Store Exclusive
|
|
void ARM64XEmitter::STXRB(ARM64Reg Rs, ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(0, Rs, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::STLXRB(ARM64Reg Rs, ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(1, Rs, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::LDXRB(ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(2, SP, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::LDAXRB(ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(3, SP, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::STLRB(ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(4, SP, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::LDARB(ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(5, SP, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::STXRH(ARM64Reg Rs, ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(6, Rs, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::STLXRH(ARM64Reg Rs, ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(7, Rs, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::LDXRH(ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(8, SP, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::LDAXRH(ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(9, SP, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::STLRH(ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(10, SP, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::LDARH(ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(11, SP, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::STXR(ARM64Reg Rs, ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(12 + Is64Bit(Rt), Rs, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::STLXR(ARM64Reg Rs, ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(14 + Is64Bit(Rt), Rs, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::STXP(ARM64Reg Rs, ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(16 + Is64Bit(Rt), Rs, Rt2, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::STLXP(ARM64Reg Rs, ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(18 + Is64Bit(Rt), Rs, Rt2, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::LDXR(ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(20 + Is64Bit(Rt), SP, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::LDAXR(ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(22 + Is64Bit(Rt), SP, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::LDXP(ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(24 + Is64Bit(Rt), SP, Rt2, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::LDAXP(ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(26 + Is64Bit(Rt), SP, Rt2, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::STLR(ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(28 + Is64Bit(Rt), SP, SP, Rt, Rn);
|
|
}
|
|
void ARM64XEmitter::LDAR(ARM64Reg Rt, ARM64Reg Rn)
|
|
{
|
|
EncodeLoadStoreExcInst(30 + Is64Bit(Rt), SP, SP, Rt, Rn);
|
|
}
|
|
|
|
// Load/Store no-allocate pair (offset)
|
|
void ARM64XEmitter::STNP(ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn, u32 imm)
|
|
{
|
|
EncodeLoadStorePairedInst(0xA0, Rt, Rt2, Rn, imm);
|
|
}
|
|
void ARM64XEmitter::LDNP(ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn, u32 imm)
|
|
{
|
|
EncodeLoadStorePairedInst(0xA1, Rt, Rt2, Rn, imm);
|
|
}
|
|
|
|
// Load/Store register (immediate post-indexed)
|
|
// XXX: Most of these support vectors
|
|
void ARM64XEmitter::STRB(IndexType type, ARM64Reg Rt, ARM64Reg Rn, s32 imm)
|
|
{
|
|
if (type == INDEX_UNSIGNED)
|
|
EncodeLoadStoreIndexedInst(0x0E4, Rt, Rn, imm, 8);
|
|
else
|
|
EncodeLoadStoreIndexedInst(0x0E0,
|
|
type == INDEX_POST ? 1 : 3, Rt, Rn, imm);
|
|
}
|
|
void ARM64XEmitter::LDRB(IndexType type, ARM64Reg Rt, ARM64Reg Rn, s32 imm)
|
|
{
|
|
if (type == INDEX_UNSIGNED)
|
|
EncodeLoadStoreIndexedInst(0x0E5, Rt, Rn, imm, 8);
|
|
else
|
|
EncodeLoadStoreIndexedInst(0x0E1,
|
|
type == INDEX_POST ? 1 : 3, Rt, Rn, imm);
|
|
}
|
|
void ARM64XEmitter::LDRSB(IndexType type, ARM64Reg Rt, ARM64Reg Rn, s32 imm)
|
|
{
|
|
if (type == INDEX_UNSIGNED)
|
|
EncodeLoadStoreIndexedInst(Is64Bit(Rt) ? 0x0E6 : 0x0E7, Rt, Rn, imm, 8);
|
|
else
|
|
EncodeLoadStoreIndexedInst(Is64Bit(Rt) ? 0x0E2 : 0x0E3,
|
|
type == INDEX_POST ? 1 : 3, Rt, Rn, imm);
|
|
}
|
|
void ARM64XEmitter::STRH(IndexType type, ARM64Reg Rt, ARM64Reg Rn, s32 imm)
|
|
{
|
|
if (type == INDEX_UNSIGNED)
|
|
EncodeLoadStoreIndexedInst(0x1E4, Rt, Rn, imm, 16);
|
|
else
|
|
EncodeLoadStoreIndexedInst(0x1E0,
|
|
type == INDEX_POST ? 1 : 3, Rt, Rn, imm);
|
|
}
|
|
void ARM64XEmitter::LDRH(IndexType type, ARM64Reg Rt, ARM64Reg Rn, s32 imm)
|
|
{
|
|
if (type == INDEX_UNSIGNED)
|
|
EncodeLoadStoreIndexedInst(0x1E5, Rt, Rn, imm, 16);
|
|
else
|
|
EncodeLoadStoreIndexedInst(0x1E1,
|
|
type == INDEX_POST ? 1 : 3, Rt, Rn, imm);
|
|
}
|
|
void ARM64XEmitter::LDRSH(IndexType type, ARM64Reg Rt, ARM64Reg Rn, s32 imm)
|
|
{
|
|
if (type == INDEX_UNSIGNED)
|
|
EncodeLoadStoreIndexedInst(Is64Bit(Rt) ? 0x1E6 : 0x1E7, Rt, Rn, imm, 16);
|
|
else
|
|
EncodeLoadStoreIndexedInst(Is64Bit(Rt) ? 0x1E2 : 0x1E3,
|
|
type == INDEX_POST ? 1 : 3, Rt, Rn, imm);
|
|
}
|
|
void ARM64XEmitter::STR(IndexType type, ARM64Reg Rt, ARM64Reg Rn, s32 imm)
|
|
{
|
|
if (type == INDEX_UNSIGNED)
|
|
EncodeLoadStoreIndexedInst(Is64Bit(Rt) ? 0x3E4 : 0x2E4, Rt, Rn, imm, Is64Bit(Rt) ? 64 : 32);
|
|
else
|
|
EncodeLoadStoreIndexedInst(Is64Bit(Rt) ? 0x3E0 : 0x2E0,
|
|
type == INDEX_POST ? 1 : 3, Rt, Rn, imm);
|
|
}
|
|
void ARM64XEmitter::LDR(IndexType type, ARM64Reg Rt, ARM64Reg Rn, s32 imm)
|
|
{
|
|
if (type == INDEX_UNSIGNED)
|
|
EncodeLoadStoreIndexedInst(Is64Bit(Rt) ? 0x3E5 : 0x2E5, Rt, Rn, imm, Is64Bit(Rt) ? 64 : 32);
|
|
else
|
|
EncodeLoadStoreIndexedInst(Is64Bit(Rt) ? 0x3E1 : 0x2E1,
|
|
type == INDEX_POST ? 1 : 3, Rt, Rn, imm);
|
|
}
|
|
void ARM64XEmitter::LDRSW(IndexType type, ARM64Reg Rt, ARM64Reg Rn, s32 imm)
|
|
{
|
|
if (type == INDEX_UNSIGNED)
|
|
EncodeLoadStoreIndexedInst(0x2E6, Rt, Rn, imm, 32);
|
|
else
|
|
EncodeLoadStoreIndexedInst(0x2E2,
|
|
type == INDEX_POST ? 1 : 3, Rt, Rn, imm);
|
|
}
|
|
|
|
// Load/Store register (register offset)
|
|
void ARM64XEmitter::STRB(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend)
|
|
{
|
|
EncodeLoadStoreRegisterOffset(0, 0, Rt, Rn, Rm, extend);
|
|
}
|
|
void ARM64XEmitter::LDRB(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend)
|
|
{
|
|
EncodeLoadStoreRegisterOffset(0, 1, Rt, Rn, Rm, extend);
|
|
}
|
|
void ARM64XEmitter::LDRSB(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend)
|
|
{
|
|
bool b64Bit = Is64Bit(Rt);
|
|
EncodeLoadStoreRegisterOffset(0, 3 - b64Bit, Rt, Rn, Rm, extend);
|
|
}
|
|
void ARM64XEmitter::STRH(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend)
|
|
{
|
|
EncodeLoadStoreRegisterOffset(1, 0, Rt, Rn, Rm, extend);
|
|
}
|
|
void ARM64XEmitter::LDRH(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend)
|
|
{
|
|
EncodeLoadStoreRegisterOffset(1, 1, Rt, Rn, Rm, extend);
|
|
}
|
|
void ARM64XEmitter::LDRSH(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend)
|
|
{
|
|
bool b64Bit = Is64Bit(Rt);
|
|
EncodeLoadStoreRegisterOffset(1, 3 - b64Bit, Rt, Rn, Rm, extend);
|
|
}
|
|
void ARM64XEmitter::STR(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend)
|
|
{
|
|
bool b64Bit = Is64Bit(Rt);
|
|
EncodeLoadStoreRegisterOffset(2 + b64Bit, 0, Rt, Rn, Rm, extend);
|
|
}
|
|
void ARM64XEmitter::LDR(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend)
|
|
{
|
|
bool b64Bit = Is64Bit(Rt);
|
|
EncodeLoadStoreRegisterOffset(2 + b64Bit, 1, Rt, Rn, Rm, extend);
|
|
}
|
|
void ARM64XEmitter::LDRSW(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend)
|
|
{
|
|
EncodeLoadStoreRegisterOffset(2, 2, Rt, Rn, Rm, extend);
|
|
}
|
|
void ARM64XEmitter::PRFM(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend)
|
|
{
|
|
EncodeLoadStoreRegisterOffset(3, 2, Rt, Rn, Rm, extend);
|
|
}
|
|
|
|
// Address of label/page PC-relative
|
|
void ARM64XEmitter::ADR(ARM64Reg Rd, s32 imm)
|
|
{
|
|
EncodeAddressInst(0, Rd, imm);
|
|
}
|
|
void ARM64XEmitter::ADRP(ARM64Reg Rd, s32 imm)
|
|
{
|
|
EncodeAddressInst(1, Rd, imm >> 12);
|
|
}
|
|
|
|
// Wrapper around MOVZ+MOVK
|
|
void ARM64XEmitter::MOVI2R(ARM64Reg Rd, u64 imm, bool optimize)
|
|
{
|
|
unsigned parts = Is64Bit(Rd) ? 4 : 2;
|
|
BitSet32 upload_part(0);
|
|
bool need_movz = false;
|
|
|
|
if (!Is64Bit(Rd))
|
|
_assert_msg_(DYNA_REC, !(imm >> 32), "%s: immediate doesn't fit in 32bit register: %lx", __FUNCTION__, imm);
|
|
|
|
if (!imm)
|
|
{
|
|
// Zero immediate, just clear the register
|
|
EOR(Rd, Rd, Rd, ArithOption(Rd, ST_LSL, 0));
|
|
return;
|
|
}
|
|
|
|
if ((Is64Bit(Rd) && imm == std::numeric_limits<u64>::max()) ||
|
|
(!Is64Bit(Rd) && imm == std::numeric_limits<u32>::max()))
|
|
{
|
|
// Max unsigned value
|
|
// Set to ~ZR
|
|
ARM64Reg ZR = Is64Bit(Rd) ? SP : WSP;
|
|
ORN(Rd, ZR, ZR, ArithOption(ZR, ST_LSL, 0));
|
|
return;
|
|
}
|
|
|
|
// XXX: Optimize more
|
|
// XXX: Support rotating immediates to save instructions
|
|
if (optimize)
|
|
{
|
|
for (unsigned i = 0; i < parts; ++i)
|
|
{
|
|
if ((imm >> (i * 16)) & 0xFFFF)
|
|
upload_part[i] = 1;
|
|
else
|
|
need_movz = true;
|
|
}
|
|
}
|
|
|
|
u64 aligned_pc = (u64)GetCodePtr() & ~0xFFF;
|
|
s64 aligned_offset = (s64)imm - (s64)aligned_pc;
|
|
if (upload_part.Count() > 1 && std::abs(aligned_offset) < 0xFFFFFFFF)
|
|
{
|
|
// Immediate we are loading is within 4GB of our aligned range
|
|
// Most likely a address that we can load in one or two instructions
|
|
if (!(std::abs(aligned_offset) & 0xFFF))
|
|
{
|
|
// Aligned ADR
|
|
ADRP(Rd, (s32)aligned_offset);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
// If the address is within 1MB of PC we can load it in a single instruction still
|
|
s64 offset = (s64)imm - (s64)GetCodePtr();
|
|
if (offset >= -0xFFFFF && offset <= 0xFFFFF)
|
|
{
|
|
ADR(Rd, (s32)offset);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
ADRP(Rd, (s32)(aligned_offset & ~0xFFF));
|
|
ADD(Rd, Rd, imm & 0xFFF);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (unsigned i = 0; i < parts; ++i)
|
|
{
|
|
if (need_movz && upload_part[i])
|
|
{
|
|
MOVZ(Rd, (imm >> (i * 16)) & 0xFFFF, (ShiftAmount)i);
|
|
need_movz = false;
|
|
}
|
|
else
|
|
{
|
|
if (upload_part[i] || !optimize)
|
|
MOVK(Rd, (imm >> (i * 16)) & 0xFFFF, (ShiftAmount)i);
|
|
}
|
|
}
|
|
}
|
|
|
|
void ARM64XEmitter::ABI_PushRegisters(BitSet32 registers)
|
|
{
|
|
int num_regs = registers.Count();
|
|
|
|
if (num_regs % 2)
|
|
{
|
|
bool first = true;
|
|
|
|
// Stack is required to be quad-word aligned.
|
|
u32 stack_size = ROUND_UP(num_regs * 8, 16);
|
|
u32 current_offset = 0;
|
|
std::vector<ARM64Reg> reg_pair;
|
|
|
|
for (auto it : registers)
|
|
{
|
|
if (first)
|
|
{
|
|
STR(INDEX_PRE, (ARM64Reg)(X0 + it), SP, -stack_size);
|
|
first = false;
|
|
current_offset += 16;
|
|
}
|
|
else
|
|
{
|
|
reg_pair.push_back((ARM64Reg)(X0 + it));
|
|
if (reg_pair.size() == 2)
|
|
{
|
|
STP(INDEX_UNSIGNED, reg_pair[0], reg_pair[1], SP, current_offset);
|
|
reg_pair.clear();
|
|
current_offset += 16;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
std::vector<ARM64Reg> reg_pair;
|
|
|
|
for (auto it : registers)
|
|
{
|
|
reg_pair.push_back((ARM64Reg)(X0 + it));
|
|
if (reg_pair.size() == 2)
|
|
{
|
|
STP(INDEX_PRE, reg_pair[0], reg_pair[1], SP, -16);
|
|
reg_pair.clear();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void ARM64XEmitter::ABI_PopRegisters(BitSet32 registers, BitSet32 ignore_mask)
|
|
{
|
|
int num_regs = registers.Count();
|
|
|
|
if (num_regs % 2)
|
|
{
|
|
bool first = true;
|
|
|
|
std::vector<ARM64Reg> reg_pair;
|
|
|
|
for (auto it : registers)
|
|
{
|
|
if (ignore_mask[it])
|
|
it = WSP;
|
|
|
|
if (first)
|
|
{
|
|
LDR(INDEX_POST, (ARM64Reg)(X0 + it), SP, 16);
|
|
first = false;
|
|
}
|
|
else
|
|
{
|
|
reg_pair.push_back((ARM64Reg)(X0 + it));
|
|
if (reg_pair.size() == 2)
|
|
{
|
|
LDP(INDEX_POST, reg_pair[0], reg_pair[1], SP, 16);
|
|
reg_pair.clear();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
std::vector<ARM64Reg> reg_pair;
|
|
|
|
for (int i = 31; i >= 0; --i)
|
|
{
|
|
if (!registers[i])
|
|
continue;
|
|
|
|
int reg = i;
|
|
|
|
if (ignore_mask[reg])
|
|
reg = WSP;
|
|
|
|
reg_pair.push_back((ARM64Reg)(X0 + reg));
|
|
if (reg_pair.size() == 2)
|
|
{
|
|
LDP(INDEX_POST, reg_pair[1], reg_pair[0], SP, 16);
|
|
reg_pair.clear();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|