/* libs/pixelflinger/codeflinger/ARMAssemblerInterface.h
**
** Copyright 2006, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#ifndef ANDROID_ARMASSEMBLER_INTERFACE_H
#define ANDROID_ARMASSEMBLER_INTERFACE_H
#include <stdint.h>
#include <sys/types.h>
namespace android {
// ----------------------------------------------------------------------------
class ARMAssemblerInterface
{
public:
virtual ~ARMAssemblerInterface();
enum {
EQ, NE, CS, CC, MI, PL, VS, VC, HI, LS, GE, LT, GT, LE, AL, NV,
HS = CS,
LO = CC
};
enum {
S = 1
};
enum {
LSL, LSR, ASR, ROR
};
enum {
ED, FD, EA, FA,
IB, IA, DB, DA
};
enum {
R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15,
SP = R13,
LR = R14,
PC = R15
};
enum {
#define LIST(rr) L##rr=1<<rr
LIST(R0), LIST(R1), LIST(R2), LIST(R3), LIST(R4), LIST(R5), LIST(R6),
LIST(R7), LIST(R8), LIST(R9), LIST(R10), LIST(R11), LIST(R12),
LIST(R13), LIST(R14), LIST(R15),
LIST(SP), LIST(LR), LIST(PC),
#undef LIST
LSAVED = LR4|LR5|LR6|LR7|LR8|LR9|LR10|LR11 | LLR
};
// -----------------------------------------------------------------------
// shifters and addressing modes
// -----------------------------------------------------------------------
// shifters...
static bool isValidImmediate(uint32_t immed);
static int buildImmediate(uint32_t i, uint32_t& rot, uint32_t& imm);
static uint32_t imm(uint32_t immediate);
static uint32_t reg_imm(int Rm, int type, uint32_t shift);
static uint32_t reg_rrx(int Rm);
static uint32_t reg_reg(int Rm, int type, int Rs);
// addressing modes...
// LDR(B)/STR(B)/PLD
// (immediate and Rm can be negative, which indicates U=0)
static uint32_t immed12_pre(int32_t immed12, int W=0);
static uint32_t immed12_post(int32_t immed12);
static uint32_t reg_scale_pre(int Rm, int type=0, uint32_t shift=0, int W=0);
static uint32_t reg_scale_post(int Rm, int type=0, uint32_t shift=0);
// LDRH/LDRSB/LDRSH/STRH
// (immediate and Rm can be negative, which indicates U=0)
static uint32_t immed8_pre(int32_t immed8, int W=0);
static uint32_t immed8_post(int32_t immed8);
static uint32_t reg_pre(int Rm, int W=0);
static uint32_t reg_post(int Rm);
// -----------------------------------------------------------------------
// basic instructions & code generation
// -----------------------------------------------------------------------
// generate the code
virtual void reset() = 0;
virtual int generate(const char* name) = 0;
virtual void disassemble(const char* name) = 0;
// construct prolog and epilog
virtual void prolog() = 0;
virtual void epilog(uint32_t touched) = 0;
virtual void comment(const char* string) = 0;
// data processing...
enum {
opAND, opEOR, opSUB, opRSB, opADD, opADC, opSBC, opRSC,
opTST, opTEQ, opCMP, opCMN, opORR, opMOV, opBIC, opMVN
};
virtual void
dataProcessing( int opcode, int cc, int s,
int Rd, int Rn,
uint32_t Op2) = 0;
// multiply...
virtual void MLA(int cc, int s,
int Rd, int Rm, int Rs, int Rn) = 0;
virtual void MUL(int cc, int s,
int Rd, int Rm, int Rs) = 0;
virtual void UMULL(int cc, int s,
int RdLo, int RdHi, int Rm, int Rs) = 0;
virtual void UMUAL(int cc, int s,
int RdLo, int RdHi, int Rm, int Rs) = 0;
virtual void SMULL(int cc, int s,
int RdLo, int RdHi, int Rm, int Rs) = 0;
virtual void SMUAL(int cc, int s,
int RdLo, int RdHi, int Rm, int Rs) = 0;
// branches...
virtual void B(int cc, uint32_t* pc) = 0;
virtual void BL(int cc, uint32_t* pc) = 0;
virtual void BX(int cc, int Rn) = 0;
virtual void label(const char* theLabel) = 0;
virtual void B(int cc, const char* label) = 0;
virtual void BL(int cc, const char* label) = 0;
// valid only after generate() has been called
virtual uint32_t* pcForLabel(const char* label) = 0;
// data transfer...
virtual void LDR (int cc, int Rd,
int Rn, uint32_t offset = immed12_pre(0)) = 0;
virtual void LDRB(int cc, int Rd,
int Rn, uint32_t offset = immed12_pre(0)) = 0;
virtual void STR (int cc, int Rd,
int Rn, uint32_t offset = immed12_pre(0)) = 0;
virtual void STRB(int cc, int Rd,
int Rn, uint32_t offset = immed12_pre(0)) = 0;
virtual void LDRH (int cc, int Rd,
int Rn, uint32_t offset = immed8_pre(0)) = 0;
virtual void LDRSB(int cc, int Rd,
int Rn, uint32_t offset = immed8_pre(0)) = 0;
virtual void LDRSH(int cc, int Rd,
int Rn, uint32_t offset = immed8_pre(0)) = 0;
virtual void STRH (int cc, int Rd,
int Rn, uint32_t offset = immed8_pre(0)) = 0;
// block data transfer...
virtual void LDM(int cc, int dir,
int Rn, int W, uint32_t reg_list) = 0;
virtual void STM(int cc, int dir,
int Rn, int W, uint32_t reg_list) = 0;
// special...
virtual void SWP(int cc, int Rn, int Rd, int Rm) = 0;
virtual void SWPB(int cc, int Rn, int Rd, int Rm) = 0;
virtual void SWI(int cc, uint32_t comment) = 0;
// DSP instructions...
enum {
// B=0, T=1
// yx
xyBB = 0, // 0000,
xyTB = 2, // 0010,
xyBT = 4, // 0100,
xyTT = 6, // 0110,
yB = 0, // 0000,
yT = 4, // 0100
};
virtual void PLD(int Rn, uint32_t offset) = 0;
virtual void CLZ(int cc, int Rd, int Rm) = 0;
virtual void QADD(int cc, int Rd, int Rm, int Rn) = 0;
virtual void QDADD(int cc, int Rd, int Rm, int Rn) = 0;
virtual void QSUB(int cc, int Rd, int Rm, int Rn) = 0;
virtual void QDSUB(int cc, int Rd, int Rm, int Rn) = 0;
virtual void SMUL(int cc, int xy,
int Rd, int Rm, int Rs) = 0;
virtual void SMULW(int cc, int y,
int Rd, int Rm, int Rs) = 0;
virtual void SMLA(int cc, int xy,
int Rd, int Rm, int Rs, int Rn) = 0;
virtual void SMLAL(int cc, int xy,
int RdHi, int RdLo, int Rs, int Rm) = 0;
virtual void SMLAW(int cc, int y,
int Rd, int Rm, int Rs, int Rn) = 0;
// byte/half word extract...
virtual void UXTB16(int cc, int Rd, int Rm, int rotate) = 0;
// bit manipulation...
virtual void UBFX(int cc, int Rd, int Rn, int lsb, int width) = 0;
// -----------------------------------------------------------------------
// convenience...
// -----------------------------------------------------------------------
inline void
ADC(int cc, int s, int Rd, int Rn, uint32_t Op2) {
dataProcessing(opADC, cc, s, Rd, Rn, Op2);
}
inline void
ADD(int cc, int s, int Rd, int Rn, uint32_t Op2) {
dataProcessing(opADD, cc, s, Rd, Rn, Op2);
}
inline void
AND(int cc, int s, int Rd, int Rn, uint32_t Op2) {
dataProcessing(opAND, cc, s, Rd, Rn, Op2);
}
inline void
BIC(int cc, int s, int Rd, int Rn, uint32_t Op2) {
dataProcessing(opBIC, cc, s, Rd, Rn, Op2);
}
inline void
EOR(int cc, int s, int Rd, int Rn, uint32_t Op2) {
dataProcessing(opEOR, cc, s, Rd, Rn, Op2);
}
inline void
MOV(int cc, int s, int Rd, uint32_t Op2) {
dataProcessing(opMOV, cc, s, Rd, 0, Op2);
}
inline void
MVN(int cc, int s, int Rd, uint32_t Op2) {
dataProcessing(opMVN, cc, s, Rd, 0, Op2);
}
inline void
ORR(int cc, int s, int Rd, int Rn, uint32_t Op2) {
dataProcessing(opORR, cc, s, Rd, Rn, Op2);
}
inline void
RSB(int cc, int s, int Rd, int Rn, uint32_t Op2) {
dataProcessing(opRSB, cc, s, Rd, Rn, Op2);
}
inline void
RSC(int cc, int s, int Rd, int Rn, uint32_t Op2) {
dataProcessing(opRSC, cc, s, Rd, Rn, Op2);
}
inline void
SBC(int cc, int s, int Rd, int Rn, uint32_t Op2) {
dataProcessing(opSBC, cc, s, Rd, Rn, Op2);
}
inline void
SUB(int cc, int s, int Rd, int Rn, uint32_t Op2) {
dataProcessing(opSUB, cc, s, Rd, Rn, Op2);
}
inline void
TEQ(int cc, int Rn, uint32_t Op2) {
dataProcessing(opTEQ, cc, 1, 0, Rn, Op2);
}
inline void
TST(int cc, int Rn, uint32_t Op2) {
dataProcessing(opTST, cc, 1, 0, Rn, Op2);
}
inline void
CMP(int cc, int Rn, uint32_t Op2) {
dataProcessing(opCMP, cc, 1, 0, Rn, Op2);
}
inline void
CMN(int cc, int Rn, uint32_t Op2) {
dataProcessing(opCMN, cc, 1, 0, Rn, Op2);
}
inline void SMULBB(int cc, int Rd, int Rm, int Rs) {
SMUL(cc, xyBB, Rd, Rm, Rs); }
inline void SMULTB(int cc, int Rd, int Rm, int Rs) {
SMUL(cc, xyTB, Rd, Rm, Rs); }
inline void SMULBT(int cc, int Rd, int Rm, int Rs) {
SMUL(cc, xyBT, Rd, Rm, Rs); }
inline void SMULTT(int cc, int Rd, int Rm, int Rs) {
SMUL(cc, xyTT, Rd, Rm, Rs); }
inline void SMULWB(int cc, int Rd, int Rm, int Rs) {
SMULW(cc, yB, Rd, Rm, Rs); }
inline void SMULWT(int cc, int Rd, int Rm, int Rs) {
SMULW(cc, yT, Rd, Rm, Rs); }
inline void
SMLABB(int cc, int Rd, int Rm, int Rs, int Rn) {
SMLA(cc, xyBB, Rd, Rm, Rs, Rn); }
inline void
SMLATB(int cc, int Rd, int Rm, int Rs, int Rn) {
SMLA(cc, xyTB, Rd, Rm, Rs, Rn); }
inline void
SMLABT(int cc, int Rd, int Rm, int Rs, int Rn) {
SMLA(cc, xyBT, Rd, Rm, Rs, Rn); }
inline void
SMLATT(int cc, int Rd, int Rm, int Rs, int Rn) {
SMLA(cc, xyTT, Rd, Rm, Rs, Rn); }
inline void
SMLALBB(int cc, int RdHi, int RdLo, int Rs, int Rm) {
SMLAL(cc, xyBB, RdHi, RdLo, Rs, Rm); }
inline void
SMLALTB(int cc, int RdHi, int RdLo, int Rs, int Rm) {
SMLAL(cc, xyTB, RdHi, RdLo, Rs, Rm); }
inline void
SMLALBT(int cc, int RdHi, int RdLo, int Rs, int Rm) {
SMLAL(cc, xyBT, RdHi, RdLo, Rs, Rm); }
inline void
SMLALTT(int cc, int RdHi, int RdLo, int Rs, int Rm) {
SMLAL(cc, xyTT, RdHi, RdLo, Rs, Rm); }
inline void
SMLAWB(int cc, int Rd, int Rm, int Rs, int Rn) {
SMLAW(cc, yB, Rd, Rm, Rs, Rn); }
inline void
SMLAWT(int cc, int Rd, int Rm, int Rs, int Rn) {
SMLAW(cc, yT, Rd, Rm, Rs, Rn); }
};
}; // namespace android
#endif //ANDROID_ARMASSEMBLER_INTERFACE_H