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)
15 /* addressing mode 1 */
21 #define A_AM1_IMM(ror2,imm8) (((ror2)<<8) | (imm8) | 0x02000000)
22 #define A_AM1_REG_XIMM(shift_imm,shift_op,rm) (((shift_imm)<<7) | ((shift_op)<<5) | (rm))
24 /* data processing op */
29 #define EOP_C_DOP_X(cond,op,s,rn,rd,shifter_op) \
30 EMIT(((cond)<<28) | ((op)<< 21) | ((s)<<20) | ((rn)<<16) | ((rd)<<12) | (shifter_op))
32 #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))
33 #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))
35 #define EOP_MOV_IMM(s, rd,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_MOV,s, 0,rd,ror2,imm8)
36 #define EOP_ORR_IMM(s,rn,rd,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_ORR,s,rn,rd,ror2,imm8)
37 #define EOP_ADD_IMM(s,rn,rd,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_ADD,s,rn,rd,ror2,imm8)
39 #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)
40 #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)
42 #define EOP_MOV_REG_SIMPLE(rd,rm) EOP_MOV_REG(0,rd,0,A_AM1_LSL,rm)
43 #define EOP_MOV_REG_LSL(rd,rm,shift_imm) EOP_MOV_REG(0,rd,shift_imm,A_AM1_LSL,rm)
44 #define EOP_MOV_REG_LSR(rd,rm,shift_imm) EOP_MOV_REG(0,rd,shift_imm,A_AM1_LSR,rm)
45 #define EOP_MOV_REG_ASR(rd,rm,shift_imm) EOP_MOV_REG(0,rd,shift_imm,A_AM1_ASR,rm)
46 #define EOP_MOV_REG_ROR(rd,rm,shift_imm) EOP_MOV_REG(0,rd,shift_imm,A_AM1_ROR,rm)
48 #define EOP_ORR_REG_SIMPLE(rd,rm) EOP_ORR_REG(0,rd,rd,0,A_AM1_LSL,rm)
50 /* addressing mode 2 */
51 #define EOP_C_AM2_IMM(cond,u,b,l,rn,rd,offset_12) \
52 EMIT(((cond)<<28) | 0x05000000 | ((u)<<23) | ((b)<<22) | ((l)<<20) | ((rn)<<16) | ((rd)<<12) | (offset_12))
54 /* addressing mode 3 */
55 #define EOP_C_AM3_IMM(cond,u,l,rn,rd,s,h,offset_8) \
56 EMIT(((cond)<<28) | 0x01400090 | ((u)<<23) | ((l)<<20) | ((rn)<<16) | ((rd)<<12) | (((offset_8)&0xf0)<<4) | \
57 ((s)<<6) | ((h)<<5) | ((offset_8)&0xf))
60 #define EOP_LDR_IMM( rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,1,0,1,rn,rd,offset_12)
61 #define EOP_LDR_NEGIMM(rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,0,0,1,rn,rd,offset_12)
62 #define EOP_LDR_SIMPLE(rd,rn) EOP_C_AM2_IMM(A_COND_AL,1,0,1,rn,rd,0)
63 #define EOP_STR_IMM( rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,1,0,0,rn,rd,offset_12)
64 #define EOP_STR_SIMPLE(rd,rn) EOP_C_AM2_IMM(A_COND_AL,1,0,0,rn,rd,0)
66 #define EOP_LDRH_IMM( rd,rn,offset_8) EOP_C_AM3_IMM(A_COND_AL,1,1,rn,rd,0,1,offset_8)
67 #define EOP_STRH_IMM( rd,rn,offset_8) EOP_C_AM3_IMM(A_COND_AL,1,0,rn,rd,0,1,offset_8)
70 #define EOP_XXM(cond,p,u,s,w,l,rn,list) \
71 EMIT(((cond)<<28) | (1<<27) | ((p)<<24) | ((u)<<23) | ((s)<<22) | ((w)<<21) | ((l)<<20) | ((rn)<<16) | (list))
73 #define EOP_STMFD_ST(list) EOP_XXM(A_COND_AL,1,0,0,1,0,13,list)
74 #define EOP_LDMFD_ST(list) EOP_XXM(A_COND_AL,0,1,0,1,1,13,list)
77 #define EOP_C_BX(cond,rm) \
78 EMIT(((cond)<<28) | 0x012fff10 | (rm))
80 #define EOP_BX(rm) EOP_C_BX(A_COND_AL,rm)
82 #define EOP_C_B(cond,l,signed_immed_24) \
83 EMIT(((cond)<<28) | 0x0a000000 | ((l)<<24) | (signed_immed_24))
85 #define EOP_B( signed_immed_24) EOP_C_B(A_COND_AL,0,signed_immed_24)
86 #define EOP_BL(signed_immed_24) EOP_C_B(A_COND_AL,1,signed_immed_24)
89 static void emit_mov_const(int d, unsigned int val)
92 if (val & 0xff000000) {
93 EOP_MOV_IMM(0, d, 8/2, (val>>24)&0xff);
96 if (val & 0x00ff0000) {
97 EOP_C_DOP_IMM(A_COND_AL,need_or ? A_OP_ORR : A_OP_MOV, 0, need_or ? d : 0, d, 16/2, (val>>16)&0xff);
100 if (val & 0x0000ff00) {
101 EOP_C_DOP_IMM(A_COND_AL,need_or ? A_OP_ORR : A_OP_MOV, 0, need_or ? d : 0, d, 24/2, (val>>8)&0xff);
104 if ((val &0x000000ff) || !need_or)
105 EOP_C_DOP_IMM(A_COND_AL,need_or ? A_OP_ORR : A_OP_MOV, 0, need_or ? d : 0, d, 0, val&0xff);
109 static void check_offset_12(unsigned int val)
111 if (!(val & ~0xfff)) return;
112 printf("offset_12 overflow %04x\n", val);
117 static void check_offset_24(int val)
119 if (val >= (int)0xff000000 && val <= 0x00ffffff) return;
120 printf("offset_24 overflow %08x\n", val);
124 static void emit_call(void *target)
126 int val = (unsigned int *)target - tcache_ptr - 2;
127 check_offset_24(val);
129 EOP_BL(val & 0xffffff); // bl target
132 static void emit_block_prologue(void)
135 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}
136 emit_call(regfile_load);
139 static void emit_block_epilogue(int icount)
141 emit_call(regfile_store);
142 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}
143 emit_mov_const(0, icount);
144 EOP_BX(14); // bx r14
147 static void emit_pc_dump(int pc)
149 emit_mov_const(3, pc<<16);
150 EOP_STR_IMM(3,7,0x400+6*4); // str r3, [r7, #(0x400+6*8)]
153 static void emit_interpreter_call(void *target)
155 emit_call(regfile_store);
157 emit_call(regfile_load);
160 static void handle_caches()
163 extern void flush_inval_caches(const void *start_addr, const void *end_addr);
164 flush_inval_caches(tcache, tcache_ptr);