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1 /* libs/pixelflinger/codeflinger/ARMAssembler.h
2 **
3 ** Copyright 2006, The Android Open Source Project
4 **
5 ** Licensed under the Apache License, Version 2.0 (the "License");
6 ** you may not use this file except in compliance with the License.
7 ** You may obtain a copy of the License at
8 **
9 **     http://www.apache.org/licenses/LICENSE-2.0
10 **
11 ** Unless required by applicable law or agreed to in writing, software
12 ** distributed under the License is distributed on an "AS IS" BASIS,
13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 ** See the License for the specific language governing permissions and
15 ** limitations under the License.
16 */
17 
18 #ifndef ANDROID_ARMASSEMBLER_H
19 #define ANDROID_ARMASSEMBLER_H
20 
21 #include <stdint.h>
22 #include <sys/types.h>
23 
24 #include "tinyutils/smartpointer.h"
25 #include "utils/Vector.h"
26 #include "utils/KeyedVector.h"
27 
28 #include "ARMAssemblerInterface.h"
29 #include "CodeCache.h"
30 
31 namespace android {
32 
33 // ----------------------------------------------------------------------------
34 
35 class ARMAssembler : public ARMAssemblerInterface
36 {
37 public:
38     explicit    ARMAssembler(const sp<Assembly>& assembly);
39     virtual     ~ARMAssembler();
40 
41     uint32_t*   base() const;
42     uint32_t*   pc() const;
43 
44 
45     void        disassemble(const char* name);
46 
47     // ------------------------------------------------------------------------
48     // ARMAssemblerInterface...
49     // ------------------------------------------------------------------------
50 
51     virtual void    reset();
52 
53     virtual int     generate(const char* name);
54     virtual int     getCodegenArch();
55 
56     virtual void    prolog();
57     virtual void    epilog(uint32_t touched);
58     virtual void    comment(const char* string);
59 
60 
61     // -----------------------------------------------------------------------
62     // shifters and addressing modes
63     // -----------------------------------------------------------------------
64 
65     // shifters...
66     virtual bool        isValidImmediate(uint32_t immed);
67     virtual int         buildImmediate(uint32_t i, uint32_t& rot, uint32_t& imm);
68 
69     virtual uint32_t    imm(uint32_t immediate);
70     virtual uint32_t    reg_imm(int Rm, int type, uint32_t shift);
71     virtual uint32_t    reg_rrx(int Rm);
72     virtual uint32_t    reg_reg(int Rm, int type, int Rs);
73 
74     // addressing modes...
75     // LDR(B)/STR(B)/PLD
76     // (immediate and Rm can be negative, which indicates U=0)
77     virtual uint32_t    immed12_pre(int32_t immed12, int W=0);
78     virtual uint32_t    immed12_post(int32_t immed12);
79     virtual uint32_t    reg_scale_pre(int Rm, int type=0, uint32_t shift=0, int W=0);
80     virtual uint32_t    reg_scale_post(int Rm, int type=0, uint32_t shift=0);
81 
82     // LDRH/LDRSB/LDRSH/STRH
83     // (immediate and Rm can be negative, which indicates U=0)
84     virtual uint32_t    immed8_pre(int32_t immed8, int W=0);
85     virtual uint32_t    immed8_post(int32_t immed8);
86     virtual uint32_t    reg_pre(int Rm, int W=0);
87     virtual uint32_t    reg_post(int Rm);
88 
89 
90     virtual void    dataProcessing(int opcode, int cc, int s,
91                                 int Rd, int Rn,
92                                 uint32_t Op2);
93     virtual void MLA(int cc, int s,
94                 int Rd, int Rm, int Rs, int Rn);
95     virtual void MUL(int cc, int s,
96                 int Rd, int Rm, int Rs);
97     virtual void UMULL(int cc, int s,
98                 int RdLo, int RdHi, int Rm, int Rs);
99     virtual void UMUAL(int cc, int s,
100                 int RdLo, int RdHi, int Rm, int Rs);
101     virtual void SMULL(int cc, int s,
102                 int RdLo, int RdHi, int Rm, int Rs);
103     virtual void SMUAL(int cc, int s,
104                 int RdLo, int RdHi, int Rm, int Rs);
105 
106     virtual void B(int cc, uint32_t* pc);
107     virtual void BL(int cc, uint32_t* pc);
108     virtual void BX(int cc, int Rn);
109     virtual void label(const char* theLabel);
110     virtual void B(int cc, const char* label);
111     virtual void BL(int cc, const char* label);
112 
113     virtual uint32_t* pcForLabel(const char* label);
114 
115     virtual void LDR (int cc, int Rd,
116                 int Rn, uint32_t offset = __immed12_pre(0));
117     virtual void LDRB(int cc, int Rd,
118                 int Rn, uint32_t offset = __immed12_pre(0));
119     virtual void STR (int cc, int Rd,
120                 int Rn, uint32_t offset = __immed12_pre(0));
121     virtual void STRB(int cc, int Rd,
122                 int Rn, uint32_t offset = __immed12_pre(0));
123     virtual void LDRH (int cc, int Rd,
124                 int Rn, uint32_t offset = __immed8_pre(0));
125     virtual void LDRSB(int cc, int Rd,
126                 int Rn, uint32_t offset = __immed8_pre(0));
127     virtual void LDRSH(int cc, int Rd,
128                 int Rn, uint32_t offset = __immed8_pre(0));
129     virtual void STRH (int cc, int Rd,
130                 int Rn, uint32_t offset = __immed8_pre(0));
131 
132 
133     virtual void LDM(int cc, int dir,
134                 int Rn, int W, uint32_t reg_list);
135     virtual void STM(int cc, int dir,
136                 int Rn, int W, uint32_t reg_list);
137 
138     virtual void SWP(int cc, int Rn, int Rd, int Rm);
139     virtual void SWPB(int cc, int Rn, int Rd, int Rm);
140     virtual void SWI(int cc, uint32_t comment);
141 
142     virtual void PLD(int Rn, uint32_t offset);
143     virtual void CLZ(int cc, int Rd, int Rm);
144     virtual void QADD(int cc, int Rd, int Rm, int Rn);
145     virtual void QDADD(int cc, int Rd, int Rm, int Rn);
146     virtual void QSUB(int cc, int Rd, int Rm, int Rn);
147     virtual void QDSUB(int cc, int Rd, int Rm, int Rn);
148     virtual void SMUL(int cc, int xy,
149                 int Rd, int Rm, int Rs);
150     virtual void SMULW(int cc, int y,
151                 int Rd, int Rm, int Rs);
152     virtual void SMLA(int cc, int xy,
153                 int Rd, int Rm, int Rs, int Rn);
154     virtual void SMLAL(int cc, int xy,
155                 int RdHi, int RdLo, int Rs, int Rm);
156     virtual void SMLAW(int cc, int y,
157                 int Rd, int Rm, int Rs, int Rn);
158     virtual void UXTB16(int cc, int Rd, int Rm, int rotate);
159     virtual void UBFX(int cc, int Rd, int Rn, int lsb, int width);
160 
161 private:
162                 ARMAssembler(const ARMAssembler& rhs);
163                 ARMAssembler& operator = (const ARMAssembler& rhs);
164 
165     sp<Assembly>    mAssembly;
166     uint32_t*       mBase;
167     uint32_t*       mPC;
168     uint32_t*       mPrologPC;
169     int64_t         mDuration;
170 
171     struct branch_target_t {
branch_target_tbranch_target_t172         inline branch_target_t() : label(0), pc(0) { }
branch_target_tbranch_target_t173         inline branch_target_t(const char* l, uint32_t* p)
174             : label(l), pc(p) { }
175         const char* label;
176         uint32_t*   pc;
177     };
178 
179     Vector<branch_target_t>                 mBranchTargets;
180     KeyedVector< const char*, uint32_t* >   mLabels;
181     KeyedVector< uint32_t*, const char* >   mLabelsInverseMapping;
182     KeyedVector< uint32_t*, const char* >   mComments;
183 };
184 
185 }; // namespace android
186 
187 #endif //ANDROID_ARMASSEMBLER_H
188