1 #define EMIT(x) *tcache_ptr++ = x
9 #define A_R10M (1 << 10)
10 #define A_R11M (1 << 11)
11 #define A_R14M (1 << 14)
19 /* addressing mode 1 */
25 #define A_AM1_IMM(ror2,imm8) (((ror2)<<8) | (imm8) | 0x02000000)
26 #define A_AM1_REG_XIMM(shift_imm,shift_op,rm) (((shift_imm)<<7) | ((shift_op)<<5) | (rm))
28 /* data processing op */
37 #define EOP_C_DOP_X(cond,op,s,rn,rd,shifter_op) \
38 EMIT(((cond)<<28) | ((op)<< 21) | ((s)<<20) | ((rn)<<16) | ((rd)<<12) | (shifter_op))
40 #define EOP_C_DOP_IMM(cond,op,s,rn,rd,ror2,imm8) EOP_C_DOP_X(cond,op,s,rn,rd,A_AM1_IMM(ror2,imm8))
41 #define EOP_C_DOP_REG(cond,op,s,rn,rd,shift_imm,shift_op,rm) EOP_C_DOP_X(cond,op,s,rn,rd,A_AM1_REG_XIMM(shift_imm,shift_op,rm))
43 #define EOP_MOV_IMM(rd, ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_MOV,0, 0,rd,ror2,imm8)
44 #define EOP_ORR_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_ORR,0,rn,rd,ror2,imm8)
45 #define EOP_ADD_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_ADD,0,rn,rd,ror2,imm8)
46 #define EOP_BIC_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_BIC,0,rn,rd,ror2,imm8)
47 #define EOP_AND_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_AND,0,rn,rd,ror2,imm8)
48 #define EOP_SUB_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_SUB,0,rn,rd,ror2,imm8)
49 #define EOP_TST_IMM( rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_TST,1,rn, 0,ror2,imm8)
51 #define EOP_MOV_REG(s, rd,shift_imm,shift_op,rm) EOP_C_DOP_REG(A_COND_AL,A_OP_MOV,s, 0,rd,shift_imm,shift_op,rm)
52 #define EOP_ORR_REG(s,rn,rd,shift_imm,shift_op,rm) EOP_C_DOP_REG(A_COND_AL,A_OP_ORR,s,rn,rd,shift_imm,shift_op,rm)
53 #define EOP_ADD_REG(s,rn,rd,shift_imm,shift_op,rm) EOP_C_DOP_REG(A_COND_AL,A_OP_ADD,s,rn,rd,shift_imm,shift_op,rm)
54 #define EOP_TST_REG( rn, shift_imm,shift_op,rm) EOP_C_DOP_REG(A_COND_AL,A_OP_TST,1,rn, 0,shift_imm,shift_op,rm)
56 #define EOP_MOV_REG_SIMPLE(rd,rm) EOP_MOV_REG(0,rd,0,A_AM1_LSL,rm)
57 #define EOP_MOV_REG_LSL(rd, rm,shift_imm) EOP_MOV_REG(0,rd,shift_imm,A_AM1_LSL,rm)
58 #define EOP_MOV_REG_LSR(rd, rm,shift_imm) EOP_MOV_REG(0,rd,shift_imm,A_AM1_LSR,rm)
59 #define EOP_MOV_REG_ASR(rd, rm,shift_imm) EOP_MOV_REG(0,rd,shift_imm,A_AM1_ASR,rm)
60 #define EOP_MOV_REG_ROR(rd, rm,shift_imm) EOP_MOV_REG(0,rd,shift_imm,A_AM1_ROR,rm)
62 #define EOP_ORR_REG_SIMPLE(rd,rm) EOP_ORR_REG(0,rd,rd,0,A_AM1_LSL,rm)
63 #define EOP_ORR_REG_LSL(rd,rn,rm,shift_imm) EOP_ORR_REG(0,rn,rd,shift_imm,A_AM1_LSL,rm)
64 #define EOP_ORR_REG_LSR(rd,rn,rm,shift_imm) EOP_ORR_REG(0,rn,rd,shift_imm,A_AM1_LSR,rm)
65 #define EOP_ORR_REG_ASR(rd,rn,rm,shift_imm) EOP_ORR_REG(0,rn,rd,shift_imm,A_AM1_ASR,rm)
66 #define EOP_ORR_REG_ROR(rd,rn,rm,shift_imm) EOP_ORR_REG(0,rn,rd,shift_imm,A_AM1_ROR,rm)
68 #define EOP_ADD_REG_SIMPLE(rd,rm) EOP_ADD_REG(0,rd,rd,0,A_AM1_LSL,rm)
69 #define EOP_ADD_REG_LSL(rd,rn,rm,shift_imm) EOP_ADD_REG(0,rn,rd,shift_imm,A_AM1_LSL,rm)
70 #define EOP_ADD_REG_LSR(rd,rn,rm,shift_imm) EOP_ADD_REG(0,rn,rd,shift_imm,A_AM1_LSR,rm)
72 #define EOP_TST_REG_SIMPLE(rn,rm) EOP_TST_REG( rn, 0,A_AM1_LSL,rm)
74 /* addressing mode 2 */
75 #define EOP_C_AM2_IMM(cond,u,b,l,rn,rd,offset_12) \
76 EMIT(((cond)<<28) | 0x05000000 | ((u)<<23) | ((b)<<22) | ((l)<<20) | ((rn)<<16) | ((rd)<<12) | (offset_12))
78 /* addressing mode 3 */
79 #define EOP_C_AM3_IMM(cond,u,l,rn,rd,s,h,offset_8) \
80 EMIT(((cond)<<28) | 0x01400090 | ((u)<<23) | ((l)<<20) | ((rn)<<16) | ((rd)<<12) | (((offset_8)&0xf0)<<4) | \
81 ((s)<<6) | ((h)<<5) | ((offset_8)&0xf))
84 #define EOP_LDR_IMM( rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,1,0,1,rn,rd,offset_12)
85 #define EOP_LDR_NEGIMM(rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,0,0,1,rn,rd,offset_12)
86 #define EOP_LDR_SIMPLE(rd,rn) EOP_C_AM2_IMM(A_COND_AL,1,0,1,rn,rd,0)
87 #define EOP_STR_IMM( rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,1,0,0,rn,rd,offset_12)
88 #define EOP_STR_SIMPLE(rd,rn) EOP_C_AM2_IMM(A_COND_AL,1,0,0,rn,rd,0)
90 #define EOP_LDRH_IMM( rd,rn,offset_8) EOP_C_AM3_IMM(A_COND_AL,1,1,rn,rd,0,1,offset_8)
91 #define EOP_LDRH_SIMPLE(rd,rn) EOP_C_AM3_IMM(A_COND_AL,1,1,rn,rd,0,1,0)
92 #define EOP_STRH_IMM( rd,rn,offset_8) EOP_C_AM3_IMM(A_COND_AL,1,0,rn,rd,0,1,offset_8)
93 #define EOP_STRH_SIMPLE(rd,rn) EOP_C_AM3_IMM(A_COND_AL,1,0,rn,rd,0,1,0)
96 #define EOP_XXM(cond,p,u,s,w,l,rn,list) \
97 EMIT(((cond)<<28) | (1<<27) | ((p)<<24) | ((u)<<23) | ((s)<<22) | ((w)<<21) | ((l)<<20) | ((rn)<<16) | (list))
99 #define EOP_STMFD_ST(list) EOP_XXM(A_COND_AL,1,0,0,1,0,13,list)
100 #define EOP_LDMFD_ST(list) EOP_XXM(A_COND_AL,0,1,0,1,1,13,list)
103 #define EOP_C_BX(cond,rm) \
104 EMIT(((cond)<<28) | 0x012fff10 | (rm))
106 #define EOP_BX(rm) EOP_C_BX(A_COND_AL,rm)
108 #define EOP_C_B(cond,l,signed_immed_24) \
109 EMIT(((cond)<<28) | 0x0a000000 | ((l)<<24) | (signed_immed_24))
111 #define EOP_B( signed_immed_24) EOP_C_B(A_COND_AL,0,signed_immed_24)
112 #define EOP_BL(signed_immed_24) EOP_C_B(A_COND_AL,1,signed_immed_24)
115 #define EOP_C_MUL(cond,s,rd,rs,rm) \
116 EMIT(((cond)<<28) | ((s)<<20) | ((rd)<<16) | ((rs)<<8) | 0x90 | (rm))
118 #define EOP_MUL(rd,rm,rs) EOP_C_MUL(A_COND_AL,0,rd,rs,rm) // note: rd != rm
120 #define EOP_C_MRS(cond,rd) \
121 EMIT(((cond)<<28) | 0x014f0000 | ((rd)<<12))
123 #define EOP_MRS(rd) EOP_C_MRS(A_COND_AL,rd)
126 static void emit_mov_const(int cond, int d, unsigned int val)
129 if (val & 0xff000000) {
130 EOP_C_DOP_IMM(cond, A_OP_MOV, 0, 0, d, 8/2, (val>>24)&0xff);
133 if (val & 0x00ff0000) {
134 EOP_C_DOP_IMM(cond, need_or ? A_OP_ORR : A_OP_MOV, 0, need_or ? d : 0, d, 16/2, (val>>16)&0xff);
137 if (val & 0x0000ff00) {
138 EOP_C_DOP_IMM(cond, need_or ? A_OP_ORR : A_OP_MOV, 0, need_or ? d : 0, d, 24/2, (val>>8)&0xff);
141 if ((val &0x000000ff) || !need_or)
142 EOP_C_DOP_IMM(cond, need_or ? A_OP_ORR : A_OP_MOV, 0, need_or ? d : 0, d, 0, val&0xff);
146 static void check_offset_12(unsigned int val)
148 if (!(val & ~0xfff)) return;
149 printf("offset_12 overflow %04x\n", val);
154 static void check_offset_24(int val)
156 if (val >= (int)0xff000000 && val <= 0x00ffffff) return;
157 printf("offset_24 overflow %08x\n", val);
161 static void emit_call(void *target)
163 int val = (unsigned int *)target - tcache_ptr - 2;
164 check_offset_24(val);
166 EOP_BL(val & 0xffffff); // bl target
169 static void emit_block_prologue(void)
172 EOP_STMFD_ST(A_R4M|A_R5M|A_R6M|A_R7M|A_R8M|A_R9M|A_R10M|A_R11M|A_R14M); // stmfd r13!, {r4-r11,lr}
173 emit_call(regfile_load);
174 EOP_MOV_IMM(11, 0, 0); // mov r11, #0
177 static void emit_block_epilogue(int icount)
179 if (icount > 0xff) { printf("large icount: %i\n", icount); icount = 0xff; }
180 emit_call(regfile_store);
181 EOP_ADD_IMM(0,11,0,icount); // add r0, r11, #icount
182 EOP_LDMFD_ST(A_R4M|A_R5M|A_R6M|A_R7M|A_R8M|A_R9M|A_R10M|A_R11M|A_R14M); // ldmfd r13!, {r4-r11,lr}
183 EOP_BX(14); // bx r14
186 static void emit_pc_dump(int pc)
188 emit_mov_const(A_COND_AL, 3, pc<<16);
189 EOP_STR_IMM(3,7,0x400+6*4); // str r3, [r7, #(0x400+6*8)]
192 static void handle_caches()
195 extern void flush_inval_caches(const void *start_addr, const void *end_addr);
196 flush_inval_caches(tcache, tcache_ptr);