// Copyright (c) 1994-2006 Sun Microsystems Inc.
// All Rights Reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// - Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// - Redistribution in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the
// distribution.
//
// - Neither the name of Sun Microsystems or the names of contributors may
// be used to endorse or promote products derived from this software without
// specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
// OF THE POSSIBILITY OF SUCH DAMAGE.
// The original source code covered by the above license above has been
// modified significantly by Google Inc.
// Copyright 2014 the V8 project authors. All rights reserved.
#include "src/s390/assembler-s390.h"
#if V8_TARGET_ARCH_S390
#if V8_HOST_ARCH_S390
#include <elf.h> // Required for auxv checks for STFLE support
#endif
#include "src/base/bits.h"
#include "src/base/cpu.h"
#include "src/s390/assembler-s390-inl.h"
#include "src/macro-assembler.h"
namespace v8 {
namespace internal {
// Get the CPU features enabled by the build.
static unsigned CpuFeaturesImpliedByCompiler() {
unsigned answer = 0;
return answer;
}
// Check whether Store Facility STFLE instruction is available on the platform.
// Instruction returns a bit vector of the enabled hardware facilities.
static bool supportsSTFLE() {
#if V8_HOST_ARCH_S390
static bool read_tried = false;
static uint32_t auxv_hwcap = 0;
if (!read_tried) {
// Open the AUXV (auxilliary vector) psuedo-file
int fd = open("/proc/self/auxv", O_RDONLY);
read_tried = true;
if (fd != -1) {
#if V8_TARGET_ARCH_S390X
static Elf64_auxv_t buffer[16];
Elf64_auxv_t* auxv_element;
#else
static Elf32_auxv_t buffer[16];
Elf32_auxv_t* auxv_element;
#endif
int bytes_read = 0;
while (bytes_read >= 0) {
// Read a chunk of the AUXV
bytes_read = read(fd, buffer, sizeof(buffer));
// Locate and read the platform field of AUXV if it is in the chunk
for (auxv_element = buffer;
auxv_element + sizeof(auxv_element) <= buffer + bytes_read &&
auxv_element->a_type != AT_NULL;
auxv_element++) {
// We are looking for HWCAP entry in AUXV to search for STFLE support
if (auxv_element->a_type == AT_HWCAP) {
/* Note: Both auxv_hwcap and buffer are static */
auxv_hwcap = auxv_element->a_un.a_val;
goto done_reading;
}
}
}
done_reading:
close(fd);
}
}
// Did not find result
if (0 == auxv_hwcap) {
return false;
}
// HWCAP_S390_STFLE is defined to be 4 in include/asm/elf.h. Currently
// hardcoded in case that include file does not exist.
const uint32_t HWCAP_S390_STFLE = 4;
return (auxv_hwcap & HWCAP_S390_STFLE);
#else
// STFLE is not available on non-s390 hosts
return false;
#endif
}
void CpuFeatures::ProbeImpl(bool cross_compile) {
supported_ |= CpuFeaturesImpliedByCompiler();
icache_line_size_ = 256;
// Only use statically determined features for cross compile (snapshot).
if (cross_compile) return;
#ifdef DEBUG
initialized_ = true;
#endif
static bool performSTFLE = supportsSTFLE();
// Need to define host, as we are generating inlined S390 assembly to test
// for facilities.
#if V8_HOST_ARCH_S390
if (performSTFLE) {
// STFLE D(B) requires:
// GPR0 to specify # of double words to update minus 1.
// i.e. GPR0 = 0 for 1 doubleword
// D(B) to specify to memory location to store the facilities bits
// The facilities we are checking for are:
// Bit 45 - Distinct Operands for instructions like ARK, SRK, etc.
// As such, we require only 1 double word
int64_t facilities[3] = {0L};
// LHI sets up GPR0
// STFLE is specified as .insn, as opcode is not recognized.
// We register the instructions kill r0 (LHI) and the CC (STFLE).
asm volatile(
"lhi 0,2\n"
".insn s,0xb2b00000,%0\n"
: "=Q"(facilities)
:
: "cc", "r0");
uint64_t one = static_cast<uint64_t>(1);
// Test for Distinct Operands Facility - Bit 45
if (facilities[0] & (one << (63 - 45))) {
supported_ |= (1u << DISTINCT_OPS);
}
// Test for General Instruction Extension Facility - Bit 34
if (facilities[0] & (one << (63 - 34))) {
supported_ |= (1u << GENERAL_INSTR_EXT);
}
// Test for Floating Point Extension Facility - Bit 37
if (facilities[0] & (one << (63 - 37))) {
supported_ |= (1u << FLOATING_POINT_EXT);
}
// Test for Vector Facility - Bit 129
if (facilities[2] & (one << (63 - (129 - 128)))) {
supported_ |= (1u << VECTOR_FACILITY);
}
// Test for Miscellaneous Instruction Extension Facility - Bit 58
if (facilities[0] & (1lu << (63 - 58))) {
supported_ |= (1u << MISC_INSTR_EXT2);
}
}
#else
// All distinct ops instructions can be simulated
supported_ |= (1u << DISTINCT_OPS);
// RISBG can be simulated
supported_ |= (1u << GENERAL_INSTR_EXT);
supported_ |= (1u << FLOATING_POINT_EXT);
supported_ |= (1u << MISC_INSTR_EXT2);
USE(performSTFLE); // To avoid assert
supported_ |= (1u << VECTOR_FACILITY);
#endif
supported_ |= (1u << FPU);
}
void CpuFeatures::PrintTarget() {
const char* s390_arch = NULL;
#if V8_TARGET_ARCH_S390X
s390_arch = "s390x";
#else
s390_arch = "s390";
#endif
printf("target %s\n", s390_arch);
}
void CpuFeatures::PrintFeatures() {
printf("FPU=%d\n", CpuFeatures::IsSupported(FPU));
printf("FPU_EXT=%d\n", CpuFeatures::IsSupported(FLOATING_POINT_EXT));
printf("GENERAL_INSTR=%d\n", CpuFeatures::IsSupported(GENERAL_INSTR_EXT));
printf("DISTINCT_OPS=%d\n", CpuFeatures::IsSupported(DISTINCT_OPS));
printf("VECTOR_FACILITY=%d\n", CpuFeatures::IsSupported(VECTOR_FACILITY));
printf("MISC_INSTR_EXT2=%d\n", CpuFeatures::IsSupported(MISC_INSTR_EXT2));
}
Register ToRegister(int num) {
DCHECK(num >= 0 && num < kNumRegisters);
const Register kRegisters[] = {r0, r1, r2, r3, r4, r5, r6, r7,
r8, r9, r10, fp, ip, r13, r14, sp};
return kRegisters[num];
}
// -----------------------------------------------------------------------------
// Implementation of RelocInfo
const int RelocInfo::kApplyMask =
RelocInfo::kCodeTargetMask | 1 << RelocInfo::INTERNAL_REFERENCE;
bool RelocInfo::IsCodedSpecially() {
// The deserializer needs to know whether a pointer is specially
// coded. Being specially coded on S390 means that it is an iihf/iilf
// instruction sequence, and that is always the case inside code
// objects.
return true;
}
bool RelocInfo::IsInConstantPool() { return false; }
Address RelocInfo::wasm_memory_reference() {
DCHECK(IsWasmMemoryReference(rmode_));
return Assembler::target_address_at(pc_, host_);
}
uint32_t RelocInfo::wasm_memory_size_reference() {
DCHECK(IsWasmMemorySizeReference(rmode_));
return static_cast<uint32_t>(
reinterpret_cast<intptr_t>(Assembler::target_address_at(pc_, host_)));
}
Address RelocInfo::wasm_global_reference() {
DCHECK(IsWasmGlobalReference(rmode_));
return Assembler::target_address_at(pc_, host_);
}
uint32_t RelocInfo::wasm_function_table_size_reference() {
DCHECK(IsWasmFunctionTableSizeReference(rmode_));
return static_cast<uint32_t>(
reinterpret_cast<intptr_t>(Assembler::target_address_at(pc_, host_)));
}
void RelocInfo::unchecked_update_wasm_memory_reference(
Address address, ICacheFlushMode flush_mode) {
Assembler::set_target_address_at(isolate_, pc_, host_, address, flush_mode);
}
void RelocInfo::unchecked_update_wasm_size(uint32_t size,
ICacheFlushMode flush_mode) {
Assembler::set_target_address_at(isolate_, pc_, host_,
reinterpret_cast<Address>(size), flush_mode);
}
// -----------------------------------------------------------------------------
// Implementation of Operand and MemOperand
// See assembler-s390-inl.h for inlined constructors
Operand::Operand(Handle<Object> handle) {
AllowDeferredHandleDereference using_raw_address;
rm_ = no_reg;
// Verify all Objects referred by code are NOT in new space.
Object* obj = *handle;
if (obj->IsHeapObject()) {
imm_ = reinterpret_cast<intptr_t>(handle.location());
rmode_ = RelocInfo::EMBEDDED_OBJECT;
} else {
// no relocation needed
imm_ = reinterpret_cast<intptr_t>(obj);
rmode_ = kRelocInfo_NONEPTR;
}
}
MemOperand::MemOperand(Register rn, int32_t offset) {
baseRegister = rn;
indexRegister = r0;
offset_ = offset;
}
MemOperand::MemOperand(Register rx, Register rb, int32_t offset) {
baseRegister = rb;
indexRegister = rx;
offset_ = offset;
}
// -----------------------------------------------------------------------------
// Specific instructions, constants, and masks.
Assembler::Assembler(Isolate* isolate, void* buffer, int buffer_size)
: AssemblerBase(isolate, buffer, buffer_size),
recorded_ast_id_(TypeFeedbackId::None()),
code_targets_(100) {
reloc_info_writer.Reposition(buffer_ + buffer_size_, pc_);
last_bound_pos_ = 0;
ClearRecordedAstId();
relocations_.reserve(128);
}
void Assembler::GetCode(CodeDesc* desc) {
EmitRelocations();
// Set up code descriptor.
desc->buffer = buffer_;
desc->buffer_size = buffer_size_;
desc->instr_size = pc_offset();
desc->reloc_size = (buffer_ + buffer_size_) - reloc_info_writer.pos();
desc->origin = this;
desc->unwinding_info_size = 0;
desc->unwinding_info = nullptr;
}
void Assembler::Align(int m) {
DCHECK(m >= 4 && base::bits::IsPowerOfTwo32(m));
while ((pc_offset() & (m - 1)) != 0) {
nop(0);
}
}
void Assembler::CodeTargetAlign() { Align(8); }
Condition Assembler::GetCondition(Instr instr) {
switch (instr & kCondMask) {
case BT:
return eq;
case BF:
return ne;
default:
UNIMPLEMENTED();
}
return al;
}
#if V8_TARGET_ARCH_S390X
// This code assumes a FIXED_SEQUENCE for 64bit loads (iihf/iilf)
bool Assembler::Is64BitLoadIntoIP(SixByteInstr instr1, SixByteInstr instr2) {
// Check the instructions are the iihf/iilf load into ip
return (((instr1 >> 32) == 0xC0C8) && ((instr2 >> 32) == 0xC0C9));
}
#else
// This code assumes a FIXED_SEQUENCE for 32bit loads (iilf)
bool Assembler::Is32BitLoadIntoIP(SixByteInstr instr) {
// Check the instruction is an iilf load into ip/r12.
return ((instr >> 32) == 0xC0C9);
}
#endif
// Labels refer to positions in the (to be) generated code.
// There are bound, linked, and unused labels.
//
// Bound labels refer to known positions in the already
// generated code. pos() is the position the label refers to.
//
// Linked labels refer to unknown positions in the code
// to be generated; pos() is the position of the last
// instruction using the label.
// The link chain is terminated by a negative code position (must be aligned)
const int kEndOfChain = -4;
// Returns the target address of the relative instructions, typically
// of the form: pos + imm (where immediate is in # of halfwords for
// BR* and LARL).
int Assembler::target_at(int pos) {
SixByteInstr instr = instr_at(pos);
// check which type of branch this is 16 or 26 bit offset
Opcode opcode = Instruction::S390OpcodeValue(buffer_ + pos);
if (BRC == opcode || BRCT == opcode || BRCTG == opcode) {
int16_t imm16 = SIGN_EXT_IMM16((instr & kImm16Mask));
imm16 <<= 1; // BRC immediate is in # of halfwords
if (imm16 == 0) return kEndOfChain;
return pos + imm16;
} else if (LLILF == opcode || BRCL == opcode || LARL == opcode ||
BRASL == opcode) {
int32_t imm32 =
static_cast<int32_t>(instr & (static_cast<uint64_t>(0xffffffff)));
if (LLILF != opcode)
imm32 <<= 1; // BR* + LARL treat immediate in # of halfwords
if (imm32 == 0) return kEndOfChain;
return pos + imm32;
}
// Unknown condition
DCHECK(false);
return -1;
}
// Update the target address of the current relative instruction.
void Assembler::target_at_put(int pos, int target_pos, bool* is_branch) {
SixByteInstr instr = instr_at(pos);
Opcode opcode = Instruction::S390OpcodeValue(buffer_ + pos);
if (is_branch != nullptr) {
*is_branch = (opcode == BRC || opcode == BRCT || opcode == BRCTG ||
opcode == BRCL || opcode == BRASL);
}
if (BRC == opcode || BRCT == opcode || BRCTG == opcode) {
int16_t imm16 = target_pos - pos;
instr &= (~0xffff);
DCHECK(is_int16(imm16));
instr_at_put<FourByteInstr>(pos, instr | (imm16 >> 1));
return;
} else if (BRCL == opcode || LARL == opcode || BRASL == opcode) {
// Immediate is in # of halfwords
int32_t imm32 = target_pos - pos;
instr &= (~static_cast<uint64_t>(0xffffffff));
instr_at_put<SixByteInstr>(pos, instr | (imm32 >> 1));
return;
} else if (LLILF == opcode) {
DCHECK(target_pos == kEndOfChain || target_pos >= 0);
// Emitted label constant, not part of a branch.
// Make label relative to Code* of generated Code object.
int32_t imm32 = target_pos + (Code::kHeaderSize - kHeapObjectTag);
instr &= (~static_cast<uint64_t>(0xffffffff));
instr_at_put<SixByteInstr>(pos, instr | imm32);
return;
}
DCHECK(false);
}
// Returns the maximum number of bits given instruction can address.
int Assembler::max_reach_from(int pos) {
Opcode opcode = Instruction::S390OpcodeValue(buffer_ + pos);
// Check which type of instr. In theory, we can return
// the values below + 1, given offset is # of halfwords
if (BRC == opcode || BRCT == opcode || BRCTG == opcode) {
return 16;
} else if (LLILF == opcode || BRCL == opcode || LARL == opcode ||
BRASL == opcode) {
return 31; // Using 31 as workaround instead of 32 as
// is_intn(x,32) doesn't work on 32-bit platforms.
// llilf: Emitted label constant, not part of
// a branch (regexp PushBacktrack).
}
DCHECK(false);
return 16;
}
void Assembler::bind_to(Label* L, int pos) {
DCHECK(0 <= pos && pos <= pc_offset()); // must have a valid binding position
bool is_branch = false;
while (L->is_linked()) {
int fixup_pos = L->pos();
#ifdef DEBUG
int32_t offset = pos - fixup_pos;
int maxReach = max_reach_from(fixup_pos);
#endif
next(L); // call next before overwriting link with target at fixup_pos
DCHECK(is_intn(offset, maxReach));
target_at_put(fixup_pos, pos, &is_branch);
}
L->bind_to(pos);
// Keep track of the last bound label so we don't eliminate any instructions
// before a bound label.
if (pos > last_bound_pos_) last_bound_pos_ = pos;
}
void Assembler::bind(Label* L) {
DCHECK(!L->is_bound()); // label can only be bound once
bind_to(L, pc_offset());
}
void Assembler::next(Label* L) {
DCHECK(L->is_linked());
int link = target_at(L->pos());
if (link == kEndOfChain) {
L->Unuse();
} else {
DCHECK(link >= 0);
L->link_to(link);
}
}
bool Assembler::is_near(Label* L, Condition cond) {
DCHECK(L->is_bound());
if (L->is_bound() == false) return false;
int maxReach = ((cond == al) ? 26 : 16);
int offset = L->pos() - pc_offset();
return is_intn(offset, maxReach);
}
int Assembler::link(Label* L) {
int position;
if (L->is_bound()) {
position = L->pos();
} else {
if (L->is_linked()) {
position = L->pos(); // L's link
} else {
// was: target_pos = kEndOfChain;
// However, using self to mark the first reference
// should avoid most instances of branch offset overflow. See
// target_at() for where this is converted back to kEndOfChain.
position = pc_offset();
}
L->link_to(pc_offset());
}
return position;
}
void Assembler::load_label_offset(Register r1, Label* L) {
int target_pos;
int constant;
if (L->is_bound()) {
target_pos = L->pos();
constant = target_pos + (Code::kHeaderSize - kHeapObjectTag);
} else {
if (L->is_linked()) {
target_pos = L->pos(); // L's link
} else {
// was: target_pos = kEndOfChain;
// However, using branch to self to mark the first reference
// should avoid most instances of branch offset overflow. See
// target_at() for where this is converted back to kEndOfChain.
target_pos = pc_offset();
}
L->link_to(pc_offset());
constant = target_pos - pc_offset();
}
llilf(r1, Operand(constant));
}
// Pseudo op - branch on condition
void Assembler::branchOnCond(Condition c, int branch_offset, bool is_bound) {
int offset_in_halfwords = branch_offset / 2;
if (is_bound && is_int16(offset_in_halfwords)) {
brc(c, Operand(offset_in_halfwords)); // short jump
} else {
brcl(c, Operand(offset_in_halfwords)); // long jump
}
}
// 32-bit Store Multiple - short displacement (12-bits unsigned)
void Assembler::stm(Register r1, Register r2, const MemOperand& src) {
rs_form(STM, r1, r2, src.rb(), src.offset());
}
// 32-bit Store Multiple - long displacement (20-bits signed)
void Assembler::stmy(Register r1, Register r2, const MemOperand& src) {
rsy_form(STMY, r1, r2, src.rb(), src.offset());
}
// 64-bit Store Multiple - long displacement (20-bits signed)
void Assembler::stmg(Register r1, Register r2, const MemOperand& src) {
rsy_form(STMG, r1, r2, src.rb(), src.offset());
}
// Exception-generating instructions and debugging support.
// Stops with a non-negative code less than kNumOfWatchedStops support
// enabling/disabling and a counter feature. See simulator-s390.h .
void Assembler::stop(const char* msg, Condition cond, int32_t code,
CRegister cr) {
if (cond != al) {
Label skip;
b(NegateCondition(cond), &skip, Label::kNear);
bkpt(0);
bind(&skip);
} else {
bkpt(0);
}
}
void Assembler::bkpt(uint32_t imm16) {
// GDB software breakpoint instruction
emit2bytes(0x0001);
}
// Pseudo instructions.
void Assembler::nop(int type) {
switch (type) {
case 0:
lr(r0, r0);
break;
case DEBUG_BREAK_NOP:
// TODO(john.yan): Use a better NOP break
oill(r3, Operand::Zero());
break;
default:
UNIMPLEMENTED();
}
}
// RI1 format: <insn> R1,I2
// +--------+----+----+------------------+
// | OpCode | R1 |OpCd| I2 |
// +--------+----+----+------------------+
// 0 8 12 16 31
#define RI1_FORM_EMIT(name, op) \
void Assembler::name(Register r, const Operand& i2) { ri_form(op, r, i2); }
void Assembler::ri_form(Opcode op, Register r1, const Operand& i2) {
DCHECK(is_uint12(op));
DCHECK(is_uint16(i2.imm_) || is_int16(i2.imm_));
emit4bytes((op & 0xFF0) * B20 | r1.code() * B20 | (op & 0xF) * B16 |
(i2.imm_ & 0xFFFF));
}
// RI2 format: <insn> M1,I2
// +--------+----+----+------------------+
// | OpCode | M1 |OpCd| I2 |
// +--------+----+----+------------------+
// 0 8 12 16 31
#define RI2_FORM_EMIT(name, op) \
void Assembler::name(Condition m, const Operand& i2) { ri_form(op, m, i2); }
void Assembler::ri_form(Opcode op, Condition m1, const Operand& i2) {
DCHECK(is_uint12(op));
DCHECK(is_uint4(m1));
DCHECK(op == BRC ? is_int16(i2.imm_) : is_uint16(i2.imm_));
emit4bytes((op & 0xFF0) * B20 | m1 * B20 | (op & 0xF) * B16 |
(i2.imm_ & 0xFFFF));
}
// RIE-f format: <insn> R1,R2,I3,I4,I5
// +--------+----+----+------------------+--------+--------+
// | OpCode | R1 | R2 | I3 | I4 | I5 | OpCode |
// +--------+----+----+------------------+--------+--------+
// 0 8 12 16 24 32 40 47
void Assembler::rie_f_form(Opcode op, Register r1, Register r2,
const Operand& i3, const Operand& i4,
const Operand& i5) {
DCHECK(is_uint16(op));
DCHECK(is_uint8(i3.imm_));
DCHECK(is_uint8(i4.imm_));
DCHECK(is_uint8(i5.imm_));
uint64_t code = (static_cast<uint64_t>(op & 0xFF00)) * B32 |
(static_cast<uint64_t>(r1.code())) * B36 |
(static_cast<uint64_t>(r2.code())) * B32 |
(static_cast<uint64_t>(i3.imm_)) * B24 |
(static_cast<uint64_t>(i4.imm_)) * B16 |
(static_cast<uint64_t>(i5.imm_)) * B8 |
(static_cast<uint64_t>(op & 0x00FF));
emit6bytes(code);
}
// RIE format: <insn> R1,R3,I2
// +--------+----+----+------------------+--------+--------+
// | OpCode | R1 | R3 | I2 |////////| OpCode |
// +--------+----+----+------------------+--------+--------+
// 0 8 12 16 32 40 47
#define RIE_FORM_EMIT(name, op) \
void Assembler::name(Register r1, Register r3, const Operand& i2) { \
rie_form(op, r1, r3, i2); \
}
void Assembler::rie_form(Opcode op, Register r1, Register r3,
const Operand& i2) {
DCHECK(is_uint16(op));
DCHECK(is_int16(i2.imm_));
uint64_t code = (static_cast<uint64_t>(op & 0xFF00)) * B32 |
(static_cast<uint64_t>(r1.code())) * B36 |
(static_cast<uint64_t>(r3.code())) * B32 |
(static_cast<uint64_t>(i2.imm_ & 0xFFFF)) * B16 |
(static_cast<uint64_t>(op & 0x00FF));
emit6bytes(code);
}
// RS1 format: <insn> R1,R3,D2(B2)
// +--------+----+----+----+-------------+
// | OpCode | R1 | R3 | B2 | D2 |
// +--------+----+----+----+-------------+
// 0 8 12 16 20 31
#define RS1_FORM_EMIT(name, op) \
void Assembler::name(Register r1, Register r3, Register b2, Disp d2) { \
rs_form(op, r1, r3, b2, d2); \
} \
void Assembler::name(Register r1, Register r3, const MemOperand& opnd) { \
name(r1, r3, opnd.getBaseRegister(), opnd.getDisplacement()); \
}
void Assembler::rs_form(Opcode op, Register r1, Register r3, Register b2,
const Disp d2) {
DCHECK(is_uint12(d2));
emit4bytes(op * B24 | r1.code() * B20 | r3.code() * B16 | b2.code() * B12 |
d2);
}
// RS2 format: <insn> R1,M3,D2(B2)
// +--------+----+----+----+-------------+
// | OpCode | R1 | M3 | B2 | D2 |
// +--------+----+----+----+-------------+
// 0 8 12 16 20 31
#define RS2_FORM_EMIT(name, op) \
void Assembler::name(Register r1, Condition m3, Register b2, Disp d2) { \
rs_form(op, r1, m3, b2, d2); \
} \
void Assembler::name(Register r1, Condition m3, const MemOperand& opnd) { \
name(r1, m3, opnd.getBaseRegister(), opnd.getDisplacement()); \
}
void Assembler::rs_form(Opcode op, Register r1, Condition m3, Register b2,
const Disp d2) {
DCHECK(is_uint12(d2));
emit4bytes(op * B24 | r1.code() * B20 | m3 * B16 | b2.code() * B12 | d2);
}
// RSI format: <insn> R1,R3,I2
// +--------+----+----+------------------+
// | OpCode | R1 | R3 | RI2 |
// +--------+----+----+------------------+
// 0 8 12 16 31
#define RSI_FORM_EMIT(name, op) \
void Assembler::name(Register r1, Register r3, const Operand& i2) { \
rsi_form(op, r1, r3, i2); \
}
void Assembler::rsi_form(Opcode op, Register r1, Register r3,
const Operand& i2) {
DCHECK(is_uint8(op));
DCHECK(is_uint16(i2.imm_));
emit4bytes(op * B24 | r1.code() * B20 | r3.code() * B16 | (i2.imm_ & 0xFFFF));
}
// RSL format: <insn> R1,R3,D2(B2)
// +--------+----+----+----+-------------+--------+--------+
// | OpCode | L1 | | B2 | D2 | | OpCode |
// +--------+----+----+----+-------------+--------+--------+
// 0 8 12 16 20 32 40 47
#define RSL_FORM_EMIT(name, op) \
void Assembler::name(Length l1, Register b2, Disp d2) { \
rsl_form(op, l1, b2, d2); \
}
void Assembler::rsl_form(Opcode op, Length l1, Register b2, Disp d2) {
DCHECK(is_uint16(op));
uint64_t code = (static_cast<uint64_t>(op & 0xFF00)) * B32 |
(static_cast<uint64_t>(l1)) * B36 |
(static_cast<uint64_t>(b2.code())) * B28 |
(static_cast<uint64_t>(d2)) * B16 |
(static_cast<uint64_t>(op & 0x00FF));
emit6bytes(code);
}
// RSY1 format: <insn> R1,R3,D2(B2)
// +--------+----+----+----+-------------+--------+--------+
// | OpCode | R1 | R3 | B2 | DL2 | DH2 | OpCode |
// +--------+----+----+----+-------------+--------+--------+
// 0 8 12 16 20 32 40 47
#define RSY1_FORM_EMIT(name, op) \
void Assembler::name(Register r1, Register r3, Register b2, Disp d2) { \
rsy_form(op, r1, r3, b2, d2); \
} \
void Assembler::name(Register r1, Register r3, const MemOperand& opnd) { \
name(r1, r3, opnd.getBaseRegister(), opnd.getDisplacement()); \
}
void Assembler::rsy_form(Opcode op, Register r1, Register r3, Register b2,
const Disp d2) {
DCHECK(is_int20(d2));
DCHECK(is_uint16(op));
uint64_t code = (static_cast<uint64_t>(op & 0xFF00)) * B32 |
(static_cast<uint64_t>(r1.code())) * B36 |
(static_cast<uint64_t>(r3.code())) * B32 |
(static_cast<uint64_t>(b2.code())) * B28 |
(static_cast<uint64_t>(d2 & 0x0FFF)) * B16 |
(static_cast<uint64_t>(d2 & 0x0FF000)) >> 4 |
(static_cast<uint64_t>(op & 0x00FF));
emit6bytes(code);
}
// RSY2 format: <insn> R1,M3,D2(B2)
// +--------+----+----+----+-------------+--------+--------+
// | OpCode | R1 | M3 | B2 | DL2 | DH2 | OpCode |
// +--------+----+----+----+-------------+--------+--------+
// 0 8 12 16 20 32 40 47
#define RSY2_FORM_EMIT(name, op) \
void Assembler::name(Register r1, Condition m3, Register b2, Disp d2) { \
rsy_form(op, r1, m3, b2, d2); \
} \
void Assembler::name(Register r1, Condition m3, const MemOperand& opnd) { \
name(r1, m3, opnd.getBaseRegister(), opnd.getDisplacement()); \
}
void Assembler::rsy_form(Opcode op, Register r1, Condition m3, Register b2,
const Disp d2) {
DCHECK(is_int20(d2));
DCHECK(is_uint16(op));
uint64_t code = (static_cast<uint64_t>(op & 0xFF00)) * B32 |
(static_cast<uint64_t>(r1.code())) * B36 |
(static_cast<uint64_t>(m3)) * B32 |
(static_cast<uint64_t>(b2.code())) * B28 |
(static_cast<uint64_t>(d2 & 0x0FFF)) * B16 |
(static_cast<uint64_t>(d2 & 0x0FF000)) >> 4 |
(static_cast<uint64_t>(op & 0x00FF));
emit6bytes(code);
}
// RXE format: <insn> R1,D2(X2,B2)
// +--------+----+----+----+-------------+--------+--------+
// | OpCode | R1 | X2 | B2 | D2 |////////| OpCode |
// +--------+----+----+----+-------------+--------+--------+
// 0 8 12 16 20 32 40 47
#define RXE_FORM_EMIT(name, op) \
void Assembler::name(Register r1, Register x2, Register b2, Disp d2) { \
rxe_form(op, r1, x2, b2, d2); \
} \
void Assembler::name(Register r1, const MemOperand& opnd) { \
name(r1, opnd.getIndexRegister(), opnd.getBaseRegister(), \
opnd.getDisplacement()); \
}
void Assembler::rxe_form(Opcode op, Register r1, Register x2, Register b2,
Disp d2) {
DCHECK(is_uint12(d2));
DCHECK(is_uint16(op));
uint64_t code = (static_cast<uint64_t>(op & 0xFF00)) * B32 |
(static_cast<uint64_t>(r1.code())) * B36 |
(static_cast<uint64_t>(x2.code())) * B32 |
(static_cast<uint64_t>(b2.code())) * B28 |
(static_cast<uint64_t>(d2 & 0x0FFF)) * B16 |
(static_cast<uint64_t>(op & 0x00FF));
emit6bytes(code);
}
// RRS format: <insn> R1,R2,M3,D4(B4)
// +--------+----+----+----+-------------+----+---+--------+
// | OpCode | R1 | R2 | B4 | D4 | M3 |///| OpCode |
// +--------+----+----+----+-------------+----+---+--------+
// 0 8 12 16 20 32 36 40 47
#define RRS_FORM_EMIT(name, op) \
void Assembler::name(Register r1, Register r2, Register b4, Disp d4, \
Condition m3) { \
rrs_form(op, r1, r2, b4, d4, m3); \
} \
void Assembler::name(Register r1, Register r2, Condition m3, \
const MemOperand& opnd) { \
name(r1, r2, opnd.getBaseRegister(), opnd.getDisplacement(), m3); \
}
void Assembler::rrs_form(Opcode op, Register r1, Register r2, Register b4,
Disp d4, Condition m3) {
DCHECK(is_uint12(d4));
DCHECK(is_uint16(op));
uint64_t code = (static_cast<uint64_t>(op & 0xFF00)) * B32 |
(static_cast<uint64_t>(r1.code())) * B36 |
(static_cast<uint64_t>(r2.code())) * B32 |
(static_cast<uint64_t>(b4.code())) * B28 |
(static_cast<uint64_t>(d4)) * B16 |
(static_cast<uint64_t>(m3)) << 12 |
(static_cast<uint64_t>(op & 0x00FF));
emit6bytes(code);
}
// RIS format: <insn> R1,I2,M3,D4(B4)
// +--------+----+----+----+-------------+--------+--------+
// | OpCode | R1 | M3 | B4 | D4 | I2 | OpCode |
// +--------+----+----+----+-------------+--------+--------+
// 0 8 12 16 20 32 40 47
#define RIS_FORM_EMIT(name, op) \
void Assembler::name(Register r1, Condition m3, Register b4, Disp d4, \
const Operand& i2) { \
ris_form(op, r1, m3, b4, d4, i2); \
} \
void Assembler::name(Register r1, const Operand& i2, Condition m3, \
const MemOperand& opnd) { \
name(r1, m3, opnd.getBaseRegister(), opnd.getDisplacement(), i2); \
}
void Assembler::ris_form(Opcode op, Register r1, Condition m3, Register b4,
Disp d4, const Operand& i2) {
DCHECK(is_uint12(d4));
DCHECK(is_uint16(op));
DCHECK(is_uint8(i2.imm_));
uint64_t code = (static_cast<uint64_t>(op & 0xFF00)) * B32 |
(static_cast<uint64_t>(r1.code())) * B36 |
(static_cast<uint64_t>(m3)) * B32 |
(static_cast<uint64_t>(b4.code())) * B28 |
(static_cast<uint64_t>(d4)) * B16 |
(static_cast<uint64_t>(i2.imm_)) << 8 |
(static_cast<uint64_t>(op & 0x00FF));
emit6bytes(code);
}
// S format: <insn> D2(B2)
// +------------------+----+-------------+
// | OpCode | B2 | D2 |
// +------------------+----+-------------+
// 0 16 20 31
#define S_FORM_EMIT(name, op) \
void Assembler::name(Register b1, Disp d2) { s_form(op, b1, d2); } \
void Assembler::name(const MemOperand& opnd) { \
name(opnd.getBaseRegister(), opnd.getDisplacement()); \
}
void Assembler::s_form(Opcode op, Register b1, Disp d2) {
DCHECK(is_uint12(d2));
emit4bytes(op << 16 | b1.code() * B12 | d2);
}
// SI format: <insn> D1(B1),I2
// +--------+---------+----+-------------+
// | OpCode | I2 | B1 | D1 |
// +--------+---------+----+-------------+
// 0 8 16 20 31
#define SI_FORM_EMIT(name, op) \
void Assembler::name(const Operand& i2, Register b1, Disp d1) { \
si_form(op, i2, b1, d1); \
} \
void Assembler::name(const MemOperand& opnd, const Operand& i2) { \
name(i2, opnd.getBaseRegister(), opnd.getDisplacement()); \
}
void Assembler::si_form(Opcode op, const Operand& i2, Register b1, Disp d1) {
emit4bytes((op & 0x00FF) << 24 | i2.imm_ * B16 | b1.code() * B12 | d1);
}
// SIY format: <insn> D1(B1),I2
// +--------+---------+----+-------------+--------+--------+
// | OpCode | I2 | B1 | DL1 | DH1 | OpCode |
// +--------+---------+----+-------------+--------+--------+
// 0 8 16 20 32 36 40 47
#define SIY_FORM_EMIT(name, op) \
void Assembler::name(const Operand& i2, Register b1, Disp d1) { \
siy_form(op, i2, b1, d1); \
} \
void Assembler::name(const MemOperand& opnd, const Operand& i2) { \
name(i2, opnd.getBaseRegister(), opnd.getDisplacement()); \
}
void Assembler::siy_form(Opcode op, const Operand& i2, Register b1, Disp d1) {
DCHECK(is_uint20(d1) || is_int20(d1));
DCHECK(is_uint16(op));
DCHECK(is_uint8(i2.imm_));
uint64_t code = (static_cast<uint64_t>(op & 0xFF00)) * B32 |
(static_cast<uint64_t>(i2.imm_)) * B32 |
(static_cast<uint64_t>(b1.code())) * B28 |
(static_cast<uint64_t>(d1 & 0x0FFF)) * B16 |
(static_cast<uint64_t>(d1 & 0x0FF000)) >> 4 |
(static_cast<uint64_t>(op & 0x00FF));
emit6bytes(code);
}
// SIL format: <insn> D1(B1),I2
// +------------------+----+-------------+-----------------+
// | OpCode | B1 | D1 | I2 |
// +------------------+----+-------------+-----------------+
// 0 16 20 32 47
#define SIL_FORM_EMIT(name, op) \
void Assembler::name(Register b1, Disp d1, const Operand& i2) { \
sil_form(op, b1, d1, i2); \
} \
void Assembler::name(const MemOperand& opnd, const Operand& i2) { \
name(opnd.getBaseRegister(), opnd.getDisplacement(), i2); \
}
void Assembler::sil_form(Opcode op, Register b1, Disp d1, const Operand& i2) {
DCHECK(is_uint12(d1));
DCHECK(is_uint16(op));
DCHECK(is_uint16(i2.imm_));
uint64_t code = (static_cast<uint64_t>(op)) * B32 |
(static_cast<uint64_t>(b1.code())) * B28 |
(static_cast<uint64_t>(d1)) * B16 |
(static_cast<uint64_t>(i2.imm_));
emit6bytes(code);
}
// RXF format: <insn> R1,R3,D2(X2,B2)
// +--------+----+----+----+-------------+----+---+--------+
// | OpCode | R3 | X2 | B2 | D2 | R1 |///| OpCode |
// +--------+----+----+----+-------------+----+---+--------+
// 0 8 12 16 20 32 36 40 47
#define RXF_FORM_EMIT(name, op) \
void Assembler::name(Register r1, Register r3, Register b2, Register x2, \
Disp d2) { \
rxf_form(op, r1, r3, b2, x2, d2); \
} \
void Assembler::name(Register r1, Register r3, const MemOperand& opnd) { \
name(r1, r3, opnd.getBaseRegister(), opnd.getIndexRegister(), \
opnd.getDisplacement()); \
}
void Assembler::rxf_form(Opcode op, Register r1, Register r3, Register b2,
Register x2, Disp d2) {
DCHECK(is_uint12(d2));
DCHECK(is_uint16(op));
uint64_t code = (static_cast<uint64_t>(op & 0xFF00)) * B32 |
(static_cast<uint64_t>(r3.code())) * B36 |
(static_cast<uint64_t>(x2.code())) * B32 |
(static_cast<uint64_t>(b2.code())) * B28 |
(static_cast<uint64_t>(d2)) * B16 |
(static_cast<uint64_t>(r1.code())) * B12 |
(static_cast<uint64_t>(op & 0x00FF));
emit6bytes(code);
}
// SS1 format: <insn> D1(L,B1),D2(B3)
// +--------+----+----+----+-------------+----+------------+
// | OpCode | L | B1 | D1 | B2 | D2 |
// +--------+----+----+----+-------------+----+------------+
// 0 8 12 16 20 32 36 47
#define SS1_FORM_EMIT(name, op) \
void Assembler::name(Register b1, Disp d1, Register b2, Disp d2, Length l) { \
ss_form(op, l, b1, d1, b2, d2); \
} \
void Assembler::name(const MemOperand& opnd1, const MemOperand& opnd2, \
Length length) { \
name(opnd1.getBaseRegister(), opnd1.getDisplacement(), \
opnd2.getBaseRegister(), opnd2.getDisplacement(), length); \
}
void Assembler::ss_form(Opcode op, Length l, Register b1, Disp d1, Register b2,
Disp d2) {
DCHECK(is_uint12(d2));
DCHECK(is_uint12(d1));
DCHECK(is_uint8(op));
DCHECK(is_uint8(l));
uint64_t code =
(static_cast<uint64_t>(op)) * B40 | (static_cast<uint64_t>(l)) * B32 |
(static_cast<uint64_t>(b1.code())) * B28 |
(static_cast<uint64_t>(d1)) * B16 |
(static_cast<uint64_t>(b2.code())) * B12 | (static_cast<uint64_t>(d2));
emit6bytes(code);
}
// SS2 format: <insn> D1(L1,B1), D2(L3,B3)
// +--------+----+----+----+-------------+----+------------+
// | OpCode | L1 | L2 | B1 | D1 | B2 | D2 |
// +--------+----+----+----+-------------+----+------------+
// 0 8 12 16 20 32 36 47
#define SS2_FORM_EMIT(name, op) \
void Assembler::name(Register b1, Disp d1, Register b2, Disp d2, Length l1, \
Length l2) { \
ss_form(op, l1, l2, b1, d1, b2, d2); \
} \
void Assembler::name(const MemOperand& opnd1, const MemOperand& opnd2, \
Length length1, Length length2) { \
name(opnd1.getBaseRegister(), opnd1.getDisplacement(), \
opnd2.getBaseRegister(), opnd2.getDisplacement(), length1, length2); \
}
void Assembler::ss_form(Opcode op, Length l1, Length l2, Register b1, Disp d1,
Register b2, Disp d2) {
DCHECK(is_uint12(d2));
DCHECK(is_uint12(d1));
DCHECK(is_uint8(op));
DCHECK(is_uint4(l2));
DCHECK(is_uint4(l1));
uint64_t code =
(static_cast<uint64_t>(op)) * B40 | (static_cast<uint64_t>(l1)) * B36 |
(static_cast<uint64_t>(l2)) * B32 |
(static_cast<uint64_t>(b1.code())) * B28 |
(static_cast<uint64_t>(d1)) * B16 |
(static_cast<uint64_t>(b2.code())) * B12 | (static_cast<uint64_t>(d2));
emit6bytes(code);
}
// SS3 format: <insn> D1(L1,B1), D2(I3,B2)
// +--------+----+----+----+-------------+----+------------+
// | OpCode | L1 | I3 | B1 | D1 | B2 | D2 |
// +--------+----+----+----+-------------+----+------------+
// 0 8 12 16 20 32 36 47
#define SS3_FORM_EMIT(name, op) \
void Assembler::name(const Operand& i3, Register b1, Disp d1, Register b2, \
Disp d2, Length l1) { \
ss_form(op, l1, i3, b1, d1, b2, d2); \
} \
void Assembler::name(const MemOperand& opnd1, const MemOperand& opnd2, \
Length length) { \
DCHECK(false); \
}
void Assembler::ss_form(Opcode op, Length l1, const Operand& i3, Register b1,
Disp d1, Register b2, Disp d2) {
DCHECK(is_uint12(d2));
DCHECK(is_uint12(d1));
DCHECK(is_uint8(op));
DCHECK(is_uint4(l1));
DCHECK(is_uint4(i3.imm_));
uint64_t code =
(static_cast<uint64_t>(op)) * B40 | (static_cast<uint64_t>(l1)) * B36 |
(static_cast<uint64_t>(i3.imm_)) * B32 |
(static_cast<uint64_t>(b1.code())) * B28 |
(static_cast<uint64_t>(d1)) * B16 |
(static_cast<uint64_t>(b2.code())) * B12 | (static_cast<uint64_t>(d2));
emit6bytes(code);
}
// SS4 format: <insn> D1(R1,B1), D2(R3,B2)
// +--------+----+----+----+-------------+----+------------+
// | OpCode | R1 | R3 | B1 | D1 | B2 | D2 |
// +--------+----+----+----+-------------+----+------------+
// 0 8 12 16 20 32 36 47
#define SS4_FORM_EMIT(name, op) \
void Assembler::name(Register r1, Register r3, Register b1, Disp d1, \
Register b2, Disp d2) { \
ss_form(op, r1, r3, b1, d1, b2, d2); \
} \
void Assembler::name(const MemOperand& opnd1, const MemOperand& opnd2) { \
DCHECK(false); \
}
void Assembler::ss_form(Opcode op, Register r1, Register r3, Register b1,
Disp d1, Register b2, Disp d2) {
DCHECK(is_uint12(d2));
DCHECK(is_uint12(d1));
DCHECK(is_uint8(op));
uint64_t code = (static_cast<uint64_t>(op)) * B40 |
(static_cast<uint64_t>(r1.code())) * B36 |
(static_cast<uint64_t>(r3.code())) * B32 |
(static_cast<uint64_t>(b1.code())) * B28 |
(static_cast<uint64_t>(d1)) * B16 |
(static_cast<uint64_t>(b2.code())) * B12 |
(static_cast<uint64_t>(d2));
emit6bytes(code);
}
// SS5 format: <insn> D1(R1,B1), D2(R3,B2)
// +--------+----+----+----+-------------+----+------------+
// | OpCode | R1 | R3 | B2 | D2 | B4 | D4 |
// +--------+----+----+----+-------------+----+------------+
// 0 8 12 16 20 32 36 47
#define SS5_FORM_EMIT(name, op) \
void Assembler::name(Register r1, Register r3, Register b2, Disp d2, \
Register b4, Disp d4) { \
ss_form(op, r1, r3, b2, d2, b4, d4); /*SS5 use the same form as SS4*/ \
} \
void Assembler::name(const MemOperand& opnd1, const MemOperand& opnd2) { \
DCHECK(false); \
}
#define SS6_FORM_EMIT(name, op) SS1_FORM_EMIT(name, op)
// SSE format: <insn> D1(B1),D2(B2)
// +------------------+----+-------------+----+------------+
// | OpCode | B1 | D1 | B2 | D2 |
// +------------------+----+-------------+----+------------+
// 0 8 12 16 20 32 36 47
#define SSE_FORM_EMIT(name, op) \
void Assembler::name(Register b1, Disp d1, Register b2, Disp d2) { \
sse_form(op, b1, d1, b2, d2); \
} \
void Assembler::name(const MemOperand& opnd1, const MemOperand& opnd2) { \
name(opnd1.getBaseRegister(), opnd1.getDisplacement(), \
opnd2.getBaseRegister(), opnd2.getDisplacement()); \
}
void Assembler::sse_form(Opcode op, Register b1, Disp d1, Register b2,
Disp d2) {
DCHECK(is_uint12(d2));
DCHECK(is_uint12(d1));
DCHECK(is_uint16(op));
uint64_t code = (static_cast<uint64_t>(op)) * B32 |
(static_cast<uint64_t>(b1.code())) * B28 |
(static_cast<uint64_t>(d1)) * B16 |
(static_cast<uint64_t>(b2.code())) * B12 |
(static_cast<uint64_t>(d2));
emit6bytes(code);
}
// SSF format: <insn> R3, D1(B1),D2(B2),R3
// +--------+----+----+----+-------------+----+------------+
// | OpCode | R3 |OpCd| B1 | D1 | B2 | D2 |
// +--------+----+----+----+-------------+----+------------+
// 0 8 12 16 20 32 36 47
#define SSF_FORM_EMIT(name, op) \
void Assembler::name(Register r3, Register b1, Disp d1, Register b2, \
Disp d2) { \
ssf_form(op, r3, b1, d1, b2, d2); \
} \
void Assembler::name(Register r3, const MemOperand& opnd1, \
const MemOperand& opnd2) { \
name(r3, opnd1.getBaseRegister(), opnd1.getDisplacement(), \
opnd2.getBaseRegister(), opnd2.getDisplacement()); \
}
void Assembler::ssf_form(Opcode op, Register r3, Register b1, Disp d1,
Register b2, Disp d2) {
DCHECK(is_uint12(d2));
DCHECK(is_uint12(d1));
DCHECK(is_uint12(op));
uint64_t code = (static_cast<uint64_t>(op & 0xFF0)) * B36 |
(static_cast<uint64_t>(r3.code())) * B36 |
(static_cast<uint64_t>(op & 0x00F)) * B32 |
(static_cast<uint64_t>(b1.code())) * B28 |
(static_cast<uint64_t>(d1)) * B16 |
(static_cast<uint64_t>(b2.code())) * B12 |
(static_cast<uint64_t>(d2));
emit6bytes(code);
}
// RRF1 format: <insn> R1,R2,R3
// +------------------+----+----+----+----+
// | OpCode | R3 | | R1 | R2 |
// +------------------+----+----+----+----+
// 0 16 20 24 28 31
#define RRF1_FORM_EMIT(name, op) \
void Assembler::name(Register r1, Register r2, Register r3) { \
rrf1_form(op << 16 | r3.code() * B12 | r1.code() * B4 | r2.code()); \
}
void Assembler::rrf1_form(Opcode op, Register r1, Register r2, Register r3) {
uint32_t code = op << 16 | r3.code() * B12 | r1.code() * B4 | r2.code();
emit4bytes(code);
}
void Assembler::rrf1_form(uint32_t code) { emit4bytes(code); }
// RRF2 format: <insn> R1,R2,M3
// +------------------+----+----+----+----+
// | OpCode | M3 | | R1 | R2 |
// +------------------+----+----+----+----+
// 0 16 20 24 28 31
#define RRF2_FORM_EMIT(name, op) \
void Assembler::name(Condition m3, Register r1, Register r2) { \
rrf2_form(op << 16 | m3 * B12 | r1.code() * B4 | r2.code()); \
}
void Assembler::rrf2_form(uint32_t code) { emit4bytes(code); }
// RRF3 format: <insn> R1,R2,R3,M4
// +------------------+----+----+----+----+
// | OpCode | R3 | M4 | R1 | R2 |
// +------------------+----+----+----+----+
// 0 16 20 24 28 31
#define RRF3_FORM_EMIT(name, op) \
void Assembler::name(Register r3, Conition m4, Register r1, Register r2) { \
rrf3_form(op << 16 | r3.code() * B12 | m4 * B8 | r1.code() * B4 | \
r2.code()); \
}
void Assembler::rrf3_form(uint32_t code) { emit4bytes(code); }
// RRF-e format: <insn> R1,M3,R2,M4
// +------------------+----+----+----+----+
// | OpCode | M3 | M4 | R1 | R2 |
// +------------------+----+----+----+----+
// 0 16 20 24 28 31
void Assembler::rrfe_form(Opcode op, Condition m3, Condition m4, Register r1,
Register r2) {
uint32_t code = op << 16 | m3 * B12 | m4 * B8 | r1.code() * B4 | r2.code();
emit4bytes(code);
}
// end of S390 Instruction generation
// start of S390 instruction
SS1_FORM_EMIT(ed, ED)
SS1_FORM_EMIT(mvn, MVN)
SS1_FORM_EMIT(nc, NC)
SI_FORM_EMIT(ni, NI)
RI1_FORM_EMIT(nilh, NILH)
RI1_FORM_EMIT(nill, NILL)
RI1_FORM_EMIT(oill, OILL)
RI1_FORM_EMIT(tmll, TMLL)
SS1_FORM_EMIT(tr, TR)
S_FORM_EMIT(ts, TS)
// -------------------------
// Load Address Instructions
// -------------------------
// Load Address Relative Long
void Assembler::larl(Register r1, Label* l) {
larl(r1, Operand(branch_offset(l)));
}
// -----------------
// Load Instructions
// -----------------
// Load Halfword Immediate (32)
void Assembler::lhi(Register r, const Operand& imm) { ri_form(LHI, r, imm); }
// Load Halfword Immediate (64)
void Assembler::lghi(Register r, const Operand& imm) { ri_form(LGHI, r, imm); }
// -------------------------
// Load Logical Instructions
// -------------------------
// Load On Condition R-R (32)
void Assembler::locr(Condition m3, Register r1, Register r2) {
rrf2_form(LOCR << 16 | m3 * B12 | r1.code() * B4 | r2.code());
}
// Load On Condition R-R (64)
void Assembler::locgr(Condition m3, Register r1, Register r2) {
rrf2_form(LOCGR << 16 | m3 * B12 | r1.code() * B4 | r2.code());
}
// Load On Condition R-M (32)
void Assembler::loc(Condition m3, Register r1, const MemOperand& src) {
rsy_form(LOC, r1, m3, src.rb(), src.offset());
}
// Load On Condition R-M (64)
void Assembler::locg(Condition m3, Register r1, const MemOperand& src) {
rsy_form(LOCG, r1, m3, src.rb(), src.offset());
}
// -------------------
// Branch Instructions
// -------------------
// Branch on Count (64)
// Branch Relative and Save (32)
void Assembler::bras(Register r, const Operand& opnd) {
ri_form(BRAS, r, opnd);
}
// Branch relative on Condition (32)
void Assembler::brc(Condition c, const Operand& opnd) { ri_form(BRC, c, opnd); }
// Branch On Count (32)
void Assembler::brct(Register r1, const Operand& imm) {
// BRCT encodes # of halfwords, so divide by 2.
int16_t numHalfwords = static_cast<int16_t>(imm.immediate()) / 2;
Operand halfwordOp = Operand(numHalfwords);
halfwordOp.setBits(16);
ri_form(BRCT, r1, halfwordOp);
}
// Branch On Count (32)
void Assembler::brctg(Register r1, const Operand& imm) {
// BRCTG encodes # of halfwords, so divide by 2.
int16_t numHalfwords = static_cast<int16_t>(imm.immediate()) / 2;
Operand halfwordOp = Operand(numHalfwords);
halfwordOp.setBits(16);
ri_form(BRCTG, r1, halfwordOp);
}
// --------------------
// Compare Instructions
// --------------------
// Compare Halfword Immediate (32)
void Assembler::chi(Register r, const Operand& opnd) { ri_form(CHI, r, opnd); }
// Compare Halfword Immediate (64)
void Assembler::cghi(Register r, const Operand& opnd) {
ri_form(CGHI, r, opnd);
}
// ----------------------------
// Compare Logical Instructions
// ----------------------------
// Compare Immediate (Mem - Imm) (8)
void Assembler::cli(const MemOperand& opnd, const Operand& imm) {
si_form(CLI, imm, opnd.rb(), opnd.offset());
}
// Compare Immediate (Mem - Imm) (8)
void Assembler::cliy(const MemOperand& opnd, const Operand& imm) {
siy_form(CLIY, imm, opnd.rb(), opnd.offset());
}
// Compare logical - mem to mem operation
void Assembler::clc(const MemOperand& opnd1, const MemOperand& opnd2,
Length length) {
ss_form(CLC, length - 1, opnd1.getBaseRegister(), opnd1.getDisplacement(),
opnd2.getBaseRegister(), opnd2.getDisplacement());
}
// ----------------------------
// Test Under Mask Instructions
// ----------------------------
// Test Under Mask (Mem - Imm) (8)
void Assembler::tm(const MemOperand& opnd, const Operand& imm) {
si_form(TM, imm, opnd.rb(), opnd.offset());
}
// Test Under Mask (Mem - Imm) (8)
void Assembler::tmy(const MemOperand& opnd, const Operand& imm) {
siy_form(TMY, imm, opnd.rb(), opnd.offset());
}
// -------------------------------
// Rotate and Insert Selected Bits
// -------------------------------
// Rotate-And-Insert-Selected-Bits
void Assembler::risbg(Register dst, Register src, const Operand& startBit,
const Operand& endBit, const Operand& shiftAmt,
bool zeroBits) {
// High tag the top bit of I4/EndBit to zero out any unselected bits
if (zeroBits)
rie_f_form(RISBG, dst, src, startBit, Operand(endBit.imm_ | 0x80),
shiftAmt);
else
rie_f_form(RISBG, dst, src, startBit, endBit, shiftAmt);
}
// Rotate-And-Insert-Selected-Bits
void Assembler::risbgn(Register dst, Register src, const Operand& startBit,
const Operand& endBit, const Operand& shiftAmt,
bool zeroBits) {
// High tag the top bit of I4/EndBit to zero out any unselected bits
if (zeroBits)
rie_f_form(RISBGN, dst, src, startBit, Operand(endBit.imm_ | 0x80),
shiftAmt);
else
rie_f_form(RISBGN, dst, src, startBit, endBit, shiftAmt);
}
// ---------------------------
// Move Character Instructions
// ---------------------------
// Move charactor - mem to mem operation
void Assembler::mvc(const MemOperand& opnd1, const MemOperand& opnd2,
uint32_t length) {
ss_form(MVC, length - 1, opnd1.getBaseRegister(), opnd1.getDisplacement(),
opnd2.getBaseRegister(), opnd2.getDisplacement());
}
// -----------------------
// 32-bit Add Instructions
// -----------------------
// Add Halfword Immediate (32)
void Assembler::ahi(Register r1, const Operand& i2) { ri_form(AHI, r1, i2); }
// Add Halfword Immediate (32)
void Assembler::ahik(Register r1, Register r3, const Operand& i2) {
rie_form(AHIK, r1, r3, i2);
}
// Add Register-Register-Register (32)
void Assembler::ark(Register r1, Register r2, Register r3) {
rrf1_form(ARK, r1, r2, r3);
}
// Add Storage-Imm (32)
void Assembler::asi(const MemOperand& opnd, const Operand& imm) {
DCHECK(is_int8(imm.imm_));
DCHECK(is_int20(opnd.offset()));
siy_form(ASI, Operand(0xff & imm.imm_), opnd.rb(), 0xfffff & opnd.offset());
}
// -----------------------
// 64-bit Add Instructions
// -----------------------
// Add Halfword Immediate (64)
void Assembler::aghi(Register r1, const Operand& i2) { ri_form(AGHI, r1, i2); }
// Add Halfword Immediate (64)
void Assembler::aghik(Register r1, Register r3, const Operand& i2) {
rie_form(AGHIK, r1, r3, i2);
}
// Add Register-Register-Register (64)
void Assembler::agrk(Register r1, Register r2, Register r3) {
rrf1_form(AGRK, r1, r2, r3);
}
// Add Storage-Imm (64)
void Assembler::agsi(const MemOperand& opnd, const Operand& imm) {
DCHECK(is_int8(imm.imm_));
DCHECK(is_int20(opnd.offset()));
siy_form(AGSI, Operand(0xff & imm.imm_), opnd.rb(), 0xfffff & opnd.offset());
}
// -------------------------------
// 32-bit Add Logical Instructions
// -------------------------------
// Add Logical Register-Register-Register (32)
void Assembler::alrk(Register r1, Register r2, Register r3) {
rrf1_form(ALRK, r1, r2, r3);
}
// -------------------------------
// 64-bit Add Logical Instructions
// -------------------------------
// Add Logical Register-Register-Register (64)
void Assembler::algrk(Register r1, Register r2, Register r3) {
rrf1_form(ALGRK, r1, r2, r3);
}
// ----------------------------
// 32-bit Subtract Instructions
// ----------------------------
// Subtract Register-Register-Register (32)
void Assembler::srk(Register r1, Register r2, Register r3) {
rrf1_form(SRK, r1, r2, r3);
}
// ----------------------------
// 64-bit Subtract Instructions
// ----------------------------
// Subtract Register-Register-Register (64)
void Assembler::sgrk(Register r1, Register r2, Register r3) {
rrf1_form(SGRK, r1, r2, r3);
}
// ------------------------------------
// 32-bit Subtract Logical Instructions
// ------------------------------------
// Subtract Logical Register-Register-Register (32)
void Assembler::slrk(Register r1, Register r2, Register r3) {
rrf1_form(SLRK, r1, r2, r3);
}
// ------------------------------------
// 64-bit Subtract Logical Instructions
// ------------------------------------
// Subtract Logical Register-Register-Register (64)
void Assembler::slgrk(Register r1, Register r2, Register r3) {
rrf1_form(SLGRK, r1, r2, r3);
}
// ----------------------------
// 32-bit Multiply Instructions
// ----------------------------
// Multiply Halfword Immediate (32)
void Assembler::mhi(Register r1, const Operand& opnd) {
ri_form(MHI, r1, opnd);
}
// Multiply Single Register (32)
void Assembler::msrkc(Register r1, Register r2, Register r3) {
rrf1_form(MSRKC, r1, r2, r3);
}
// Multiply Single Register (64)
void Assembler::msgrkc(Register r1, Register r2, Register r3) {
rrf1_form(MSGRKC, r1, r2, r3);
}
// ----------------------------
// 64-bit Multiply Instructions
// ----------------------------
// Multiply Halfword Immediate (64)
void Assembler::mghi(Register r1, const Operand& opnd) {
ri_form(MGHI, r1, opnd);
}
// --------------------
// Bitwise Instructions
// --------------------
// AND Register-Register-Register (32)
void Assembler::nrk(Register r1, Register r2, Register r3) {
rrf1_form(NRK, r1, r2, r3);
}
// AND Register-Register-Register (64)
void Assembler::ngrk(Register r1, Register r2, Register r3) {
rrf1_form(NGRK, r1, r2, r3);
}
// OR Register-Register-Register (32)
void Assembler::ork(Register r1, Register r2, Register r3) {
rrf1_form(ORK, r1, r2, r3);
}
// OR Register-Register-Register (64)
void Assembler::ogrk(Register r1, Register r2, Register r3) {
rrf1_form(OGRK, r1, r2, r3);
}
// XOR Register-Register-Register (32)
void Assembler::xrk(Register r1, Register r2, Register r3) {
rrf1_form(XRK, r1, r2, r3);
}
// XOR Register-Register-Register (64)
void Assembler::xgrk(Register r1, Register r2, Register r3) {
rrf1_form(XGRK, r1, r2, r3);
}
// XOR Storage-Storage
void Assembler::xc(const MemOperand& opnd1, const MemOperand& opnd2,
Length length) {
ss_form(XC, length - 1, opnd1.getBaseRegister(), opnd1.getDisplacement(),
opnd2.getBaseRegister(), opnd2.getDisplacement());
}
void Assembler::EnsureSpaceFor(int space_needed) {
if (buffer_space() <= (kGap + space_needed)) {
GrowBuffer(space_needed);
}
}
// Rotate Left Single Logical (32)
void Assembler::rll(Register r1, Register r3, Register opnd) {
DCHECK(!opnd.is(r0));
rsy_form(RLL, r1, r3, opnd, 0);
}
// Rotate Left Single Logical (32)
void Assembler::rll(Register r1, Register r3, const Operand& opnd) {
rsy_form(RLL, r1, r3, r0, opnd.immediate());
}
// Rotate Left Single Logical (32)
void Assembler::rll(Register r1, Register r3, Register r2,
const Operand& opnd) {
rsy_form(RLL, r1, r3, r2, opnd.immediate());
}
// Rotate Left Single Logical (64)
void Assembler::rllg(Register r1, Register r3, Register opnd) {
DCHECK(!opnd.is(r0));
rsy_form(RLLG, r1, r3, opnd, 0);
}
// Rotate Left Single Logical (64)
void Assembler::rllg(Register r1, Register r3, const Operand& opnd) {
rsy_form(RLLG, r1, r3, r0, opnd.immediate());
}
// Rotate Left Single Logical (64)
void Assembler::rllg(Register r1, Register r3, Register r2,
const Operand& opnd) {
rsy_form(RLLG, r1, r3, r2, opnd.immediate());
}
// Shift Left Single Logical (32)
void Assembler::sll(Register r1, Register opnd) {
DCHECK(!opnd.is(r0));
rs_form(SLL, r1, r0, opnd, 0);
}
// Shift Left Single Logical (32)
void Assembler::sll(Register r1, const Operand& opnd) {
rs_form(SLL, r1, r0, r0, opnd.immediate());
}
// Shift Left Single Logical (32)
void Assembler::sllk(Register r1, Register r3, Register opnd) {
DCHECK(!opnd.is(r0));
rsy_form(SLLK, r1, r3, opnd, 0);
}
// Shift Left Single Logical (32)
void Assembler::sllk(Register r1, Register r3, const Operand& opnd) {
rsy_form(SLLK, r1, r3, r0, opnd.immediate());
}
// Shift Left Single Logical (64)
void Assembler::sllg(Register r1, Register r3, Register opnd) {
DCHECK(!opnd.is(r0));
rsy_form(SLLG, r1, r3, opnd, 0);
}
// Shift Left Single Logical (64)
void Assembler::sllg(Register r1, Register r3, const Operand& opnd) {
rsy_form(SLLG, r1, r3, r0, opnd.immediate());
}
// Shift Left Double Logical (64)
void Assembler::sldl(Register r1, Register b2, const Operand& opnd) {
DCHECK(r1.code() % 2 == 0);
rs_form(SLDL, r1, r0, b2, opnd.immediate());
}
// Shift Right Single Logical (32)
void Assembler::srl(Register r1, Register opnd) {
DCHECK(!opnd.is(r0));
rs_form(SRL, r1, r0, opnd, 0);
}
// Shift Right Double Arith (64)
void Assembler::srda(Register r1, Register b2, const Operand& opnd) {
DCHECK(r1.code() % 2 == 0);
rs_form(SRDA, r1, r0, b2, opnd.immediate());
}
// Shift Right Double Logical (64)
void Assembler::srdl(Register r1, Register b2, const Operand& opnd) {
DCHECK(r1.code() % 2 == 0);
rs_form(SRDL, r1, r0, b2, opnd.immediate());
}
// Shift Right Single Logical (32)
void Assembler::srl(Register r1, const Operand& opnd) {
rs_form(SRL, r1, r0, r0, opnd.immediate());
}
// Shift Right Single Logical (32)
void Assembler::srlk(Register r1, Register r3, Register opnd) {
DCHECK(!opnd.is(r0));
rsy_form(SRLK, r1, r3, opnd, 0);
}
// Shift Right Single Logical (32)
void Assembler::srlk(Register r1, Register r3, const Operand& opnd) {
rsy_form(SRLK, r1, r3, r0, opnd.immediate());
}
// Shift Right Single Logical (64)
void Assembler::srlg(Register r1, Register r3, Register opnd) {
DCHECK(!opnd.is(r0));
rsy_form(SRLG, r1, r3, opnd, 0);
}
// Shift Right Single Logical (64)
void Assembler::srlg(Register r1, Register r3, const Operand& opnd) {
rsy_form(SRLG, r1, r3, r0, opnd.immediate());
}
// Shift Left Single (32)
void Assembler::sla(Register r1, Register opnd) {
DCHECK(!opnd.is(r0));
rs_form(SLA, r1, r0, opnd, 0);
}
// Shift Left Single (32)
void Assembler::sla(Register r1, const Operand& opnd) {
rs_form(SLA, r1, r0, r0, opnd.immediate());
}
// Shift Left Single (32)
void Assembler::slak(Register r1, Register r3, Register opnd) {
DCHECK(!opnd.is(r0));
rsy_form(SLAK, r1, r3, opnd, 0);
}
// Shift Left Single (32)
void Assembler::slak(Register r1, Register r3, const Operand& opnd) {
rsy_form(SLAK, r1, r3, r0, opnd.immediate());
}
// Shift Left Single (64)
void Assembler::slag(Register r1, Register r3, Register opnd) {
DCHECK(!opnd.is(r0));
rsy_form(SLAG, r1, r3, opnd, 0);
}
// Shift Left Single (64)
void Assembler::slag(Register r1, Register r3, const Operand& opnd) {
rsy_form(SLAG, r1, r3, r0, opnd.immediate());
}
// Shift Right Single (32)
void Assembler::sra(Register r1, Register opnd) {
DCHECK(!opnd.is(r0));
rs_form(SRA, r1, r0, opnd, 0);
}
// Shift Right Single (32)
void Assembler::sra(Register r1, const Operand& opnd) {
rs_form(SRA, r1, r0, r0, opnd.immediate());
}
// Shift Right Single (32)
void Assembler::srak(Register r1, Register r3, Register opnd) {
DCHECK(!opnd.is(r0));
rsy_form(SRAK, r1, r3, opnd, 0);
}
// Shift Right Single (32)
void Assembler::srak(Register r1, Register r3, const Operand& opnd) {
rsy_form(SRAK, r1, r3, r0, opnd.immediate());
}
// Shift Right Single (64)
void Assembler::srag(Register r1, Register r3, Register opnd) {
DCHECK(!opnd.is(r0));
rsy_form(SRAG, r1, r3, opnd, 0);
}
void Assembler::srag(Register r1, Register r3, const Operand& opnd) {
rsy_form(SRAG, r1, r3, r0, opnd.immediate());
}
// Shift Right Double
void Assembler::srda(Register r1, const Operand& opnd) {
DCHECK(r1.code() % 2 == 0);
rs_form(SRDA, r1, r0, r0, opnd.immediate());
}
// Shift Right Double Logical
void Assembler::srdl(Register r1, const Operand& opnd) {
DCHECK(r1.code() % 2 == 0);
rs_form(SRDL, r1, r0, r0, opnd.immediate());
}
void Assembler::call(Handle<Code> target, RelocInfo::Mode rmode,
TypeFeedbackId ast_id) {
EnsureSpace ensure_space(this);
int32_t target_index = emit_code_target(target, rmode, ast_id);
brasl(r14, Operand(target_index));
}
void Assembler::jump(Handle<Code> target, RelocInfo::Mode rmode,
Condition cond) {
EnsureSpace ensure_space(this);
int32_t target_index = emit_code_target(target, rmode);
brcl(cond, Operand(target_index));
}
// 32-bit Load Multiple - short displacement (12-bits unsigned)
void Assembler::lm(Register r1, Register r2, const MemOperand& src) {
rs_form(LM, r1, r2, src.rb(), src.offset());
}
// 32-bit Load Multiple - long displacement (20-bits signed)
void Assembler::lmy(Register r1, Register r2, const MemOperand& src) {
rsy_form(LMY, r1, r2, src.rb(), src.offset());
}
// 64-bit Load Multiple - long displacement (20-bits signed)
void Assembler::lmg(Register r1, Register r2, const MemOperand& src) {
rsy_form(LMG, r1, r2, src.rb(), src.offset());
}
// Move integer (32)
void Assembler::mvhi(const MemOperand& opnd1, const Operand& i2) {
sil_form(MVHI, opnd1.getBaseRegister(), opnd1.getDisplacement(), i2);
}
// Move integer (64)
void Assembler::mvghi(const MemOperand& opnd1, const Operand& i2) {
sil_form(MVGHI, opnd1.getBaseRegister(), opnd1.getDisplacement(), i2);
}
// Insert Immediate (high high)
void Assembler::iihh(Register r1, const Operand& opnd) {
ri_form(IIHH, r1, opnd);
}
// Insert Immediate (high low)
void Assembler::iihl(Register r1, const Operand& opnd) {
ri_form(IIHL, r1, opnd);
}
// Insert Immediate (low high)
void Assembler::iilh(Register r1, const Operand& opnd) {
ri_form(IILH, r1, opnd);
}
// Insert Immediate (low low)
void Assembler::iill(Register r1, const Operand& opnd) {
ri_form(IILL, r1, opnd);
}
// GPR <-> FPR Instructions
// Floating point instructions
//
// Add Register-Storage (LB)
void Assembler::adb(DoubleRegister r1, const MemOperand& opnd) {
rxe_form(ADB, Register::from_code(r1.code()), opnd.rx(), opnd.rb(),
opnd.offset());
}
// Divide Register-Storage (LB)
void Assembler::ddb(DoubleRegister r1, const MemOperand& opnd) {
rxe_form(DDB, Register::from_code(r1.code()), opnd.rx(), opnd.rb(),
opnd.offset());
}
// Multiply Register-Storage (LB)
void Assembler::mdb(DoubleRegister r1, const MemOperand& opnd) {
rxe_form(MDB, Register::from_code(r1.code()), opnd.rb(), opnd.rx(),
opnd.offset());
}
// Subtract Register-Storage (LB)
void Assembler::sdb(DoubleRegister r1, const MemOperand& opnd) {
rxe_form(SDB, Register::from_code(r1.code()), opnd.rx(), opnd.rb(),
opnd.offset());
}
void Assembler::ceb(DoubleRegister r1, const MemOperand& opnd) {
rxe_form(CEB, Register::from_code(r1.code()), opnd.rx(), opnd.rb(),
opnd.offset());
}
void Assembler::cdb(DoubleRegister r1, const MemOperand& opnd) {
rxe_form(CDB, Register::from_code(r1.code()), opnd.rx(), opnd.rb(),
opnd.offset());
}
// Square Root (LB)
void Assembler::sqdb(DoubleRegister r1, const MemOperand& opnd) {
rxe_form(SQDB, Register::from_code(r1.code()), opnd.rx(), opnd.rb(),
opnd.offset());
}
// Convert to Fixed point (64<-S)
void Assembler::cgebr(Condition m, Register r1, DoubleRegister r2) {
rrfe_form(CGEBR, m, Condition(0), r1, Register::from_code(r2.code()));
}
// Convert to Fixed point (64<-L)
void Assembler::cgdbr(Condition m, Register r1, DoubleRegister r2) {
rrfe_form(CGDBR, m, Condition(0), r1, Register::from_code(r2.code()));
}
// Convert to Fixed point (32<-L)
void Assembler::cfdbr(Condition m, Register r1, DoubleRegister r2) {
rrfe_form(CFDBR, m, Condition(0), r1, Register::from_code(r2.code()));
}
// Convert to Fixed Logical (64<-L)
void Assembler::clgdbr(Condition m3, Condition m4, Register r1,
DoubleRegister r2) {
DCHECK_EQ(m4, Condition(0));
rrfe_form(CLGDBR, m3, m4, r1, Register::from_code(r2.code()));
}
// Convert to Fixed Logical (64<-F32)
void Assembler::clgebr(Condition m3, Condition m4, Register r1,
DoubleRegister r2) {
DCHECK_EQ(m4, Condition(0));
rrfe_form(CLGEBR, m3, m4, r1, Register::from_code(r2.code()));
}
// Convert to Fixed Logical (32<-F64)
void Assembler::clfdbr(Condition m3, Condition m4, Register r1,
DoubleRegister r2) {
DCHECK_EQ(m3, Condition(0));
DCHECK_EQ(m4, Condition(0));
rrfe_form(CLFDBR, Condition(0), Condition(0), r1,
Register::from_code(r2.code()));
}
// Convert to Fixed Logical (32<-F32)
void Assembler::clfebr(Condition m3, Condition m4, Register r1,
DoubleRegister r2) {
DCHECK_EQ(m4, Condition(0));
rrfe_form(CLFEBR, m3, Condition(0), r1, Register::from_code(r2.code()));
}
// Convert from Fixed Logical (L<-64)
void Assembler::celgbr(Condition m3, Condition m4, DoubleRegister r1,
Register r2) {
DCHECK_EQ(m3, Condition(0));
DCHECK_EQ(m4, Condition(0));
rrfe_form(CELGBR, Condition(0), Condition(0), Register::from_code(r1.code()),
r2);
}
// Convert from Fixed Logical (F32<-32)
void Assembler::celfbr(Condition m3, Condition m4, DoubleRegister r1,
Register r2) {
DCHECK_EQ(m4, Condition(0));
rrfe_form(CELFBR, m3, Condition(0), Register::from_code(r1.code()), r2);
}
// Convert from Fixed Logical (L<-64)
void Assembler::cdlgbr(Condition m3, Condition m4, DoubleRegister r1,
Register r2) {
DCHECK_EQ(m3, Condition(0));
DCHECK_EQ(m4, Condition(0));
rrfe_form(CDLGBR, Condition(0), Condition(0), Register::from_code(r1.code()),
r2);
}
// Convert from Fixed Logical (L<-32)
void Assembler::cdlfbr(Condition m3, Condition m4, DoubleRegister r1,
Register r2) {
DCHECK_EQ(m4, Condition(0));
rrfe_form(CDLFBR, m3, Condition(0), Register::from_code(r1.code()), r2);
}
// Convert from Fixed point (S<-32)
void Assembler::cefbr(Condition m3, DoubleRegister r1, Register r2) {
rrfe_form(CEFBR, m3, Condition(0), Register::from_code(r1.code()), r2);
}
// Convert to Fixed point (32<-S)
void Assembler::cfebr(Condition m3, Register r1, DoubleRegister r2) {
rrfe_form(CFEBR, m3, Condition(0), r1, Register::from_code(r2.code()));
}
// Load (L <- S)
void Assembler::ldeb(DoubleRegister d1, const MemOperand& opnd) {
rxe_form(LDEB, Register::from_code(d1.code()), opnd.rx(), opnd.rb(),
opnd.offset());
}
// Load FP Integer
void Assembler::fiebra(DoubleRegister d1, DoubleRegister d2, FIDBRA_MASK3 m3) {
rrf2_form(FIEBRA << 16 | m3 * B12 | d1.code() * B4 | d2.code());
}
// Load FP Integer
void Assembler::fidbra(DoubleRegister d1, DoubleRegister d2, FIDBRA_MASK3 m3) {
rrf2_form(FIDBRA << 16 | m3 * B12 | d1.code() * B4 | d2.code());
}
// end of S390instructions
bool Assembler::IsNop(SixByteInstr instr, int type) {
DCHECK((0 == type) || (DEBUG_BREAK_NOP == type));
if (DEBUG_BREAK_NOP == type) {
return ((instr & 0xffffffff) == 0xa53b0000); // oill r3, 0
}
return ((instr & 0xffff) == 0x1800); // lr r0,r0
}
// dummy instruction reserved for special use.
void Assembler::dumy(int r1, int x2, int b2, int d2) {
#if defined(USE_SIMULATOR)
int op = 0xE353;
uint64_t code = (static_cast<uint64_t>(op & 0xFF00)) * B32 |
(static_cast<uint64_t>(r1) & 0xF) * B36 |
(static_cast<uint64_t>(x2) & 0xF) * B32 |
(static_cast<uint64_t>(b2) & 0xF) * B28 |
(static_cast<uint64_t>(d2 & 0x0FFF)) * B16 |
(static_cast<uint64_t>(d2 & 0x0FF000)) >> 4 |
(static_cast<uint64_t>(op & 0x00FF));
emit6bytes(code);
#endif
}
void Assembler::GrowBuffer(int needed) {
if (!own_buffer_) FATAL("external code buffer is too small");
// Compute new buffer size.
CodeDesc desc; // the new buffer
if (buffer_size_ < 4 * KB) {
desc.buffer_size = 4 * KB;
} else if (buffer_size_ < 1 * MB) {
desc.buffer_size = 2 * buffer_size_;
} else {
desc.buffer_size = buffer_size_ + 1 * MB;
}
int space = buffer_space() + (desc.buffer_size - buffer_size_);
if (space < needed) {
desc.buffer_size += needed - space;
}
CHECK_GT(desc.buffer_size, 0); // no overflow
// Set up new buffer.
desc.buffer = NewArray<byte>(desc.buffer_size);
desc.origin = this;
desc.instr_size = pc_offset();
desc.reloc_size = (buffer_ + buffer_size_) - reloc_info_writer.pos();
// Copy the data.
intptr_t pc_delta = desc.buffer - buffer_;
intptr_t rc_delta =
(desc.buffer + desc.buffer_size) - (buffer_ + buffer_size_);
memmove(desc.buffer, buffer_, desc.instr_size);
memmove(reloc_info_writer.pos() + rc_delta, reloc_info_writer.pos(),
desc.reloc_size);
// Switch buffers.
DeleteArray(buffer_);
buffer_ = desc.buffer;
buffer_size_ = desc.buffer_size;
pc_ += pc_delta;
reloc_info_writer.Reposition(reloc_info_writer.pos() + rc_delta,
reloc_info_writer.last_pc() + pc_delta);
// None of our relocation types are pc relative pointing outside the code
// buffer nor pc absolute pointing inside the code buffer, so there is no need
// to relocate any emitted relocation entries.
}
void Assembler::db(uint8_t data) {
CheckBuffer();
*reinterpret_cast<uint8_t*>(pc_) = data;
pc_ += sizeof(uint8_t);
}
void Assembler::dd(uint32_t data) {
CheckBuffer();
*reinterpret_cast<uint32_t*>(pc_) = data;
pc_ += sizeof(uint32_t);
}
void Assembler::dq(uint64_t value) {
CheckBuffer();
*reinterpret_cast<uint64_t*>(pc_) = value;
pc_ += sizeof(uint64_t);
}
void Assembler::dp(uintptr_t data) {
CheckBuffer();
*reinterpret_cast<uintptr_t*>(pc_) = data;
pc_ += sizeof(uintptr_t);
}
void Assembler::RecordRelocInfo(RelocInfo::Mode rmode, intptr_t data) {
if (RelocInfo::IsNone(rmode) ||
// Don't record external references unless the heap will be serialized.
(rmode == RelocInfo::EXTERNAL_REFERENCE && !serializer_enabled() &&
!emit_debug_code())) {
return;
}
if (rmode == RelocInfo::CODE_TARGET_WITH_ID) {
data = RecordedAstId().ToInt();
ClearRecordedAstId();
}
DeferredRelocInfo rinfo(pc_offset(), rmode, data);
relocations_.push_back(rinfo);
}
void Assembler::emit_label_addr(Label* label) {
CheckBuffer();
RecordRelocInfo(RelocInfo::INTERNAL_REFERENCE);
int position = link(label);
DCHECK(label->is_bound());
// Keep internal references relative until EmitRelocations.
dp(position);
}
void Assembler::EmitRelocations() {
EnsureSpaceFor(relocations_.size() * kMaxRelocSize);
for (std::vector<DeferredRelocInfo>::iterator it = relocations_.begin();
it != relocations_.end(); it++) {
RelocInfo::Mode rmode = it->rmode();
Address pc = buffer_ + it->position();
Code* code = NULL;
RelocInfo rinfo(isolate(), pc, rmode, it->data(), code);
// Fix up internal references now that they are guaranteed to be bound.
if (RelocInfo::IsInternalReference(rmode)) {
// Jump table entry
intptr_t pos = reinterpret_cast<intptr_t>(Memory::Address_at(pc));
Memory::Address_at(pc) = buffer_ + pos;
} else if (RelocInfo::IsInternalReferenceEncoded(rmode)) {
// mov sequence
intptr_t pos = reinterpret_cast<intptr_t>(target_address_at(pc, code));
set_target_address_at(isolate(), pc, code, buffer_ + pos,
SKIP_ICACHE_FLUSH);
}
reloc_info_writer.Write(&rinfo);
}
}
} // namespace internal
} // namespace v8
#endif // V8_TARGET_ARCH_S390