2 * Basic macros to emit ARM instructions and some utils
3 * Copyright (C) 2008,2009,2010 notaz
4 * Copyright (C) 2016 lentillog
5 * Copyright (C) 2016 Daniel De Matteis
7 * This work is licensed under the terms of MAME license.
8 * See COPYING file in the top-level directory.
10 #define CONTEXT_REG 11
12 // XXX: tcache_ptr type for SVP and SH2 compilers differs..
13 #define EMIT_PTR(ptr, x) \
16 ptr = (void *)((u8 *)ptr + sizeof(u32)); \
20 #define EMIT(x) EMIT_PTR(tcache_ptr, x)
22 #define A_R4M (1 << 4)
23 #define A_R5M (1 << 5)
24 #define A_R6M (1 << 6)
25 #define A_R7M (1 << 7)
26 #define A_R8M (1 << 8)
27 #define A_R9M (1 << 9)
28 #define A_R10M (1 << 10)
29 #define A_R11M (1 << 11)
30 #define A_R12M (1 << 12)
31 #define A_R14M (1 << 14)
32 #define A_R15M (1 << 15)
49 #define A_COND_CS A_COND_HS
50 #define A_COND_CC A_COND_LO
52 /* unified conditions */
53 #define DCOND_EQ A_COND_EQ
54 #define DCOND_NE A_COND_NE
55 #define DCOND_MI A_COND_MI
56 #define DCOND_PL A_COND_PL
57 #define DCOND_HI A_COND_HI
58 #define DCOND_HS A_COND_HS
59 #define DCOND_LO A_COND_LO
60 #define DCOND_GE A_COND_GE
61 #define DCOND_GT A_COND_GT
62 #define DCOND_LT A_COND_LT
63 #define DCOND_LS A_COND_LS
64 #define DCOND_LE A_COND_LE
65 #define DCOND_VS A_COND_VS
66 #define DCOND_VC A_COND_VC
68 /* addressing mode 1 */
74 #define A_AM1_IMM(ror2,imm8) (((ror2)<<8) | (imm8) | 0x02000000)
75 #define A_AM1_REG_XIMM(shift_imm,shift_op,rm) (((shift_imm)<<7) | ((shift_op)<<5) | (rm))
76 #define A_AM1_REG_XREG(rs,shift_op,rm) (((rs)<<8) | ((shift_op)<<5) | 0x10 | (rm))
78 /* data processing op */
96 #define EOP_C_DOP_X(cond,op,s,rn,rd,shifter_op) \
97 EMIT(((cond)<<28) | ((op)<< 21) | ((s)<<20) | ((rn)<<16) | ((rd)<<12) | (shifter_op))
99 #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))
100 #define EOP_C_DOP_REG_XIMM(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))
101 #define EOP_C_DOP_REG_XREG(cond,op,s,rn,rd,rs, shift_op,rm) EOP_C_DOP_X(cond,op,s,rn,rd,A_AM1_REG_XREG(rs, shift_op,rm))
103 #define EOP_MOV_IMM(rd, ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_MOV,0, 0,rd,ror2,imm8)
104 #define EOP_MVN_IMM(rd, ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_MVN,0, 0,rd,ror2,imm8)
105 #define EOP_ORR_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_ORR,0,rn,rd,ror2,imm8)
106 #define EOP_EOR_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_EOR,0,rn,rd,ror2,imm8)
107 #define EOP_ADD_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_ADD,0,rn,rd,ror2,imm8)
108 #define EOP_BIC_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_BIC,0,rn,rd,ror2,imm8)
109 #define EOP_AND_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_AND,0,rn,rd,ror2,imm8)
110 #define EOP_SUB_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_SUB,0,rn,rd,ror2,imm8)
111 #define EOP_TST_IMM( rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_TST,1,rn, 0,ror2,imm8)
112 #define EOP_CMP_IMM( rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_CMP,1,rn, 0,ror2,imm8)
113 #define EOP_RSB_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_RSB,0,rn,rd,ror2,imm8)
115 #define EOP_MOV_IMM_C(cond,rd, ror2,imm8) EOP_C_DOP_IMM(cond,A_OP_MOV,0, 0,rd,ror2,imm8)
116 #define EOP_ORR_IMM_C(cond,rd,rn,ror2,imm8) EOP_C_DOP_IMM(cond,A_OP_ORR,0,rn,rd,ror2,imm8)
117 #define EOP_RSB_IMM_C(cond,rd,rn,ror2,imm8) EOP_C_DOP_IMM(cond,A_OP_RSB,0,rn,rd,ror2,imm8)
119 #define EOP_MOV_REG(cond,s,rd, rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_MOV,s, 0,rd,shift_imm,shift_op,rm)
120 #define EOP_MVN_REG(cond,s,rd, rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_MVN,s, 0,rd,shift_imm,shift_op,rm)
121 #define EOP_ORR_REG(cond,s,rd,rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_ORR,s,rn,rd,shift_imm,shift_op,rm)
122 #define EOP_ADD_REG(cond,s,rd,rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_ADD,s,rn,rd,shift_imm,shift_op,rm)
123 #define EOP_ADC_REG(cond,s,rd,rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_ADC,s,rn,rd,shift_imm,shift_op,rm)
124 #define EOP_SUB_REG(cond,s,rd,rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_SUB,s,rn,rd,shift_imm,shift_op,rm)
125 #define EOP_SBC_REG(cond,s,rd,rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_SBC,s,rn,rd,shift_imm,shift_op,rm)
126 #define EOP_AND_REG(cond,s,rd,rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_AND,s,rn,rd,shift_imm,shift_op,rm)
127 #define EOP_EOR_REG(cond,s,rd,rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_EOR,s,rn,rd,shift_imm,shift_op,rm)
128 #define EOP_CMP_REG(cond, rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_CMP,1,rn, 0,shift_imm,shift_op,rm)
129 #define EOP_TST_REG(cond, rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_TST,1,rn, 0,shift_imm,shift_op,rm)
130 #define EOP_TEQ_REG(cond, rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_TEQ,1,rn, 0,shift_imm,shift_op,rm)
132 #define EOP_MOV_REG2(s,rd, rm,shift_op,rs) EOP_C_DOP_REG_XREG(A_COND_AL,A_OP_MOV,s, 0,rd,rs,shift_op,rm)
133 #define EOP_ADD_REG2(s,rd,rn,rm,shift_op,rs) EOP_C_DOP_REG_XREG(A_COND_AL,A_OP_ADD,s,rn,rd,rs,shift_op,rm)
134 #define EOP_SUB_REG2(s,rd,rn,rm,shift_op,rs) EOP_C_DOP_REG_XREG(A_COND_AL,A_OP_SUB,s,rn,rd,rs,shift_op,rm)
136 #define EOP_MOV_REG_SIMPLE(rd,rm) EOP_MOV_REG(A_COND_AL,0,rd,rm,A_AM1_LSL,0)
137 #define EOP_MOV_REG_LSL(rd, rm,shift_imm) EOP_MOV_REG(A_COND_AL,0,rd,rm,A_AM1_LSL,shift_imm)
138 #define EOP_MOV_REG_LSR(rd, rm,shift_imm) EOP_MOV_REG(A_COND_AL,0,rd,rm,A_AM1_LSR,shift_imm)
139 #define EOP_MOV_REG_ASR(rd, rm,shift_imm) EOP_MOV_REG(A_COND_AL,0,rd,rm,A_AM1_ASR,shift_imm)
140 #define EOP_MOV_REG_ROR(rd, rm,shift_imm) EOP_MOV_REG(A_COND_AL,0,rd,rm,A_AM1_ROR,shift_imm)
142 #define EOP_ORR_REG_SIMPLE(rd,rm) EOP_ORR_REG(A_COND_AL,0,rd,rd,rm,A_AM1_LSL,0)
143 #define EOP_ORR_REG_LSL(rd,rn,rm,shift_imm) EOP_ORR_REG(A_COND_AL,0,rd,rn,rm,A_AM1_LSL,shift_imm)
144 #define EOP_ORR_REG_LSR(rd,rn,rm,shift_imm) EOP_ORR_REG(A_COND_AL,0,rd,rn,rm,A_AM1_LSR,shift_imm)
145 #define EOP_ORR_REG_ASR(rd,rn,rm,shift_imm) EOP_ORR_REG(A_COND_AL,0,rd,rn,rm,A_AM1_ASR,shift_imm)
146 #define EOP_ORR_REG_ROR(rd,rn,rm,shift_imm) EOP_ORR_REG(A_COND_AL,0,rd,rn,rm,A_AM1_ROR,shift_imm)
148 #define EOP_ADD_REG_SIMPLE(rd,rm) EOP_ADD_REG(A_COND_AL,0,rd,rd,rm,A_AM1_LSL,0)
149 #define EOP_ADD_REG_LSL(rd,rn,rm,shift_imm) EOP_ADD_REG(A_COND_AL,0,rd,rn,rm,A_AM1_LSL,shift_imm)
150 #define EOP_ADD_REG_LSR(rd,rn,rm,shift_imm) EOP_ADD_REG(A_COND_AL,0,rd,rn,rm,A_AM1_LSR,shift_imm)
152 #define EOP_TST_REG_SIMPLE(rn,rm) EOP_TST_REG(A_COND_AL, rn, 0,A_AM1_LSL,rm)
154 #define EOP_MOV_REG2_LSL(rd, rm,rs) EOP_MOV_REG2(0,rd, rm,A_AM1_LSL,rs)
155 #define EOP_MOV_REG2_ROR(rd, rm,rs) EOP_MOV_REG2(0,rd, rm,A_AM1_ROR,rs)
156 #define EOP_ADD_REG2_LSL(rd,rn,rm,rs) EOP_ADD_REG2(0,rd,rn,rm,A_AM1_LSL,rs)
157 #define EOP_SUB_REG2_LSL(rd,rn,rm,rs) EOP_SUB_REG2(0,rd,rn,rm,A_AM1_LSL,rs)
159 /* addressing mode 2 */
160 #define EOP_C_AM2_IMM(cond,u,b,l,rn,rd,offset_12) \
161 EMIT(((cond)<<28) | 0x05000000 | ((u)<<23) | ((b)<<22) | ((l)<<20) | ((rn)<<16) | ((rd)<<12) | (offset_12))
163 #define EOP_C_AM2_REG(cond,u,b,l,rn,rd,shift_imm,shift_op,rm) \
164 EMIT(((cond)<<28) | 0x07000000 | ((u)<<23) | ((b)<<22) | ((l)<<20) | ((rn)<<16) | ((rd)<<12) | \
165 ((shift_imm)<<7) | ((shift_op)<<5) | (rm))
167 /* addressing mode 3 */
168 #define EOP_C_AM3(cond,u,r,l,rn,rd,s,h,immed_reg) \
169 EMIT(((cond)<<28) | 0x01000090 | ((u)<<23) | ((r)<<22) | ((l)<<20) | ((rn)<<16) | ((rd)<<12) | \
170 ((s)<<6) | ((h)<<5) | (immed_reg))
172 #define EOP_C_AM3_IMM(cond,u,l,rn,rd,s,h,offset_8) EOP_C_AM3(cond,u,1,l,rn,rd,s,h,(((offset_8)&0xf0)<<4)|((offset_8)&0xf))
174 #define EOP_C_AM3_REG(cond,u,l,rn,rd,s,h,rm) EOP_C_AM3(cond,u,0,l,rn,rd,s,h,rm)
177 #define EOP_LDR_IMM2(cond,rd,rn,offset_12) EOP_C_AM2_IMM(cond,1,0,1,rn,rd,offset_12)
178 #define EOP_LDRB_IMM2(cond,rd,rn,offset_12) EOP_C_AM2_IMM(cond,1,1,1,rn,rd,offset_12)
180 #define EOP_LDR_IMM( rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,1,0,1,rn,rd,offset_12)
181 #define EOP_LDR_NEGIMM(rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,0,0,1,rn,rd,offset_12)
182 #define EOP_LDR_SIMPLE(rd,rn) EOP_C_AM2_IMM(A_COND_AL,1,0,1,rn,rd,0)
183 #define EOP_STR_IMM( rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,1,0,0,rn,rd,offset_12)
184 #define EOP_STR_SIMPLE(rd,rn) EOP_C_AM2_IMM(A_COND_AL,1,0,0,rn,rd,0)
186 #define EOP_LDR_REG_LSL(cond,rd,rn,rm,shift_imm) EOP_C_AM2_REG(cond,1,0,1,rn,rd,shift_imm,A_AM1_LSL,rm)
188 #define EOP_LDRH_IMM2(cond,rd,rn,offset_8) EOP_C_AM3_IMM(cond,1,1,rn,rd,0,1,offset_8)
190 #define EOP_LDRH_IMM( rd,rn,offset_8) EOP_C_AM3_IMM(A_COND_AL,1,1,rn,rd,0,1,offset_8)
191 #define EOP_LDRH_SIMPLE(rd,rn) EOP_C_AM3_IMM(A_COND_AL,1,1,rn,rd,0,1,0)
192 #define EOP_LDRH_REG( rd,rn,rm) EOP_C_AM3_REG(A_COND_AL,1,1,rn,rd,0,1,rm)
193 #define EOP_STRH_IMM( rd,rn,offset_8) EOP_C_AM3_IMM(A_COND_AL,1,0,rn,rd,0,1,offset_8)
194 #define EOP_STRH_SIMPLE(rd,rn) EOP_C_AM3_IMM(A_COND_AL,1,0,rn,rd,0,1,0)
195 #define EOP_STRH_REG( rd,rn,rm) EOP_C_AM3_REG(A_COND_AL,1,0,rn,rd,0,1,rm)
198 #define EOP_XXM(cond,p,u,s,w,l,rn,list) \
199 EMIT(((cond)<<28) | (1<<27) | ((p)<<24) | ((u)<<23) | ((s)<<22) | ((w)<<21) | ((l)<<20) | ((rn)<<16) | (list))
201 #define EOP_STMIA(rb,list) EOP_XXM(A_COND_AL,0,1,0,0,0,rb,list)
202 #define EOP_LDMIA(rb,list) EOP_XXM(A_COND_AL,0,1,0,0,1,rb,list)
204 #define EOP_STMFD_SP(list) EOP_XXM(A_COND_AL,1,0,0,1,0,13,list)
205 #define EOP_LDMFD_SP(list) EOP_XXM(A_COND_AL,0,1,0,1,1,13,list)
208 #define EOP_C_BX(cond,rm) \
209 EMIT(((cond)<<28) | 0x012fff10 | (rm))
211 #define EOP_C_B_PTR(ptr,cond,l,signed_immed_24) \
212 EMIT_PTR(ptr, ((cond)<<28) | 0x0a000000 | ((l)<<24) | (signed_immed_24))
214 #define EOP_C_B(cond,l,signed_immed_24) \
215 EOP_C_B_PTR(tcache_ptr,cond,l,signed_immed_24)
217 #define EOP_B( signed_immed_24) EOP_C_B(A_COND_AL,0,signed_immed_24)
218 #define EOP_BL(signed_immed_24) EOP_C_B(A_COND_AL,1,signed_immed_24)
221 #define EOP_C_MUL(cond,s,rd,rs,rm) \
222 EMIT(((cond)<<28) | ((s)<<20) | ((rd)<<16) | ((rs)<<8) | 0x90 | (rm))
224 #define EOP_C_UMULL(cond,s,rdhi,rdlo,rs,rm) \
225 EMIT(((cond)<<28) | 0x00800000 | ((s)<<20) | ((rdhi)<<16) | ((rdlo)<<12) | ((rs)<<8) | 0x90 | (rm))
227 #define EOP_C_SMULL(cond,s,rdhi,rdlo,rs,rm) \
228 EMIT(((cond)<<28) | 0x00c00000 | ((s)<<20) | ((rdhi)<<16) | ((rdlo)<<12) | ((rs)<<8) | 0x90 | (rm))
230 #define EOP_C_SMLAL(cond,s,rdhi,rdlo,rs,rm) \
231 EMIT(((cond)<<28) | 0x00e00000 | ((s)<<20) | ((rdhi)<<16) | ((rdlo)<<12) | ((rs)<<8) | 0x90 | (rm))
233 #define EOP_MUL(rd,rm,rs) EOP_C_MUL(A_COND_AL,0,rd,rs,rm) // note: rd != rm
235 #define EOP_C_MRS(cond,rd) \
236 EMIT(((cond)<<28) | 0x010f0000 | ((rd)<<12))
238 #define EOP_C_MSR_IMM(cond,ror2,imm) \
239 EMIT(((cond)<<28) | 0x0328f000 | ((ror2)<<8) | (imm)) // cpsr_f
241 #define EOP_C_MSR_REG(cond,rm) \
242 EMIT(((cond)<<28) | 0x0128f000 | (rm)) // cpsr_f
244 #define EOP_MRS(rd) EOP_C_MRS(A_COND_AL,rd)
245 #define EOP_MSR_IMM(ror2,imm) EOP_C_MSR_IMM(A_COND_AL,ror2,imm)
246 #define EOP_MSR_REG(rm) EOP_C_MSR_REG(A_COND_AL,rm)
249 // XXX: AND, RSB, *C, will break if 1 insn is not enough
250 static void emith_op_imm2(int cond, int s, int op, int rd, int rn, unsigned int imm)
258 if (~imm < 0x10000) {
269 if (s == 0 && imm == 0)
274 for (v = imm, ror2 = 0; ; ror2 -= 8/2) {
275 /* shift down to get 'best' rot2 */
276 for (; v && !(v & 3); v >>= 2)
279 EOP_C_DOP_IMM(cond, op, s, rn, rd, ror2 & 0x0f, v & 0xff);
292 #define emith_op_imm(cond, s, op, r, imm) \
293 emith_op_imm2(cond, s, op, r, r, imm)
296 #define emith_top_imm(cond, op, r, imm) do { \
298 for (ror2 = 0, v = imm; v && !(v & 3); v >>= 2) \
300 EOP_C_DOP_IMM(cond, op, 1, r, 0, ror2 & 0x0f, v & 0xff); \
303 #define is_offset_24(val) \
304 ((val) >= (int)0xff000000 && (val) <= 0x00ffffff)
306 static int emith_xbranch(int cond, void *target, int is_call)
308 int val = (u32 *)target - (u32 *)tcache_ptr - 2;
309 int direct = is_offset_24(val);
310 u32 *start_ptr = (u32 *)tcache_ptr;
314 EOP_C_B(cond,is_call,val & 0xffffff); // b, bl target
319 // elprintf(EL_SVP, "emitting indirect jmp %08x->%08x", tcache_ptr, target);
321 EOP_ADD_IMM(14,15,0,8); // add lr,pc,#8
322 EOP_C_AM2_IMM(cond,1,0,1,15,15,0); // ldrcc pc,[pc]
323 EOP_MOV_REG_SIMPLE(15,15); // mov pc, pc
326 // should never happen
327 elprintf(EL_STATUS|EL_SVP|EL_ANOMALY, "indirect jmp %08x->%08x", target, tcache_ptr);
332 return (u32 *)tcache_ptr - start_ptr;
335 #define JMP_POS(ptr) \
337 tcache_ptr += sizeof(u32)
339 #define JMP_EMIT(cond, ptr) { \
340 u32 val_ = (u32 *)tcache_ptr - (u32 *)(ptr) - 2; \
341 EOP_C_B_PTR(ptr, cond, 0, val_ & 0xffffff); \
344 #define EMITH_JMP_START(cond) { \
348 #define EMITH_JMP_END(cond) \
349 JMP_EMIT(cond, cond_ptr); \
352 // fake "simple" or "short" jump - using cond insns instead
353 #define EMITH_NOTHING1(cond) \
356 #define EMITH_SJMP_START(cond) EMITH_NOTHING1(cond)
357 #define EMITH_SJMP_END(cond) EMITH_NOTHING1(cond)
358 #define EMITH_SJMP3_START(cond) EMITH_NOTHING1(cond)
359 #define EMITH_SJMP3_MID(cond) EMITH_NOTHING1(cond)
360 #define EMITH_SJMP3_END()
362 #define emith_move_r_r(d, s) \
363 EOP_MOV_REG_SIMPLE(d, s)
365 #define emith_mvn_r_r(d, s) \
366 EOP_MVN_REG(A_COND_AL,0,d,s,A_AM1_LSL,0)
368 #define emith_add_r_r_r_lsl(d, s1, s2, lslimm) \
369 EOP_ADD_REG(A_COND_AL,0,d,s1,s2,A_AM1_LSL,lslimm)
371 #define emith_or_r_r_r_lsl(d, s1, s2, lslimm) \
372 EOP_ORR_REG(A_COND_AL,0,d,s1,s2,A_AM1_LSL,lslimm)
374 #define emith_eor_r_r_r_lsl(d, s1, s2, lslimm) \
375 EOP_EOR_REG(A_COND_AL,0,d,s1,s2,A_AM1_LSL,lslimm)
377 #define emith_eor_r_r_r_lsr(d, s1, s2, lsrimm) \
378 EOP_EOR_REG(A_COND_AL,0,d,s1,s2,A_AM1_LSR,lsrimm)
380 #define emith_or_r_r_lsl(d, s, lslimm) \
381 emith_or_r_r_r_lsl(d, d, s, lslimm)
383 #define emith_eor_r_r_lsr(d, s, lsrimm) \
384 emith_eor_r_r_r_lsr(d, d, s, lsrimm)
386 #define emith_add_r_r_r(d, s1, s2) \
387 emith_add_r_r_r_lsl(d, s1, s2, 0)
389 #define emith_or_r_r_r(d, s1, s2) \
390 emith_or_r_r_r_lsl(d, s1, s2, 0)
392 #define emith_eor_r_r_r(d, s1, s2) \
393 emith_eor_r_r_r_lsl(d, s1, s2, 0)
395 #define emith_add_r_r(d, s) \
396 emith_add_r_r_r(d, d, s)
398 #define emith_sub_r_r(d, s) \
399 EOP_SUB_REG(A_COND_AL,0,d,d,s,A_AM1_LSL,0)
401 #define emith_adc_r_r(d, s) \
402 EOP_ADC_REG(A_COND_AL,0,d,d,s,A_AM1_LSL,0)
404 #define emith_and_r_r(d, s) \
405 EOP_AND_REG(A_COND_AL,0,d,d,s,A_AM1_LSL,0)
407 #define emith_or_r_r(d, s) \
408 emith_or_r_r_r(d, d, s)
410 #define emith_eor_r_r(d, s) \
411 emith_eor_r_r_r(d, d, s)
413 #define emith_tst_r_r(d, s) \
414 EOP_TST_REG(A_COND_AL,d,s,A_AM1_LSL,0)
416 #define emith_teq_r_r(d, s) \
417 EOP_TEQ_REG(A_COND_AL,d,s,A_AM1_LSL,0)
419 #define emith_cmp_r_r(d, s) \
420 EOP_CMP_REG(A_COND_AL,d,s,A_AM1_LSL,0)
422 #define emith_addf_r_r(d, s) \
423 EOP_ADD_REG(A_COND_AL,1,d,d,s,A_AM1_LSL,0)
425 #define emith_subf_r_r(d, s) \
426 EOP_SUB_REG(A_COND_AL,1,d,d,s,A_AM1_LSL,0)
428 #define emith_adcf_r_r(d, s) \
429 EOP_ADC_REG(A_COND_AL,1,d,d,s,A_AM1_LSL,0)
431 #define emith_sbcf_r_r(d, s) \
432 EOP_SBC_REG(A_COND_AL,1,d,d,s,A_AM1_LSL,0)
434 #define emith_eorf_r_r(d, s) \
435 EOP_EOR_REG(A_COND_AL,1,d,d,s,A_AM1_LSL,0)
437 #define emith_move_r_imm(r, imm) \
438 emith_op_imm(A_COND_AL, 0, A_OP_MOV, r, imm)
440 #define emith_add_r_imm(r, imm) \
441 emith_op_imm(A_COND_AL, 0, A_OP_ADD, r, imm)
443 #define emith_adc_r_imm(r, imm) \
444 emith_op_imm(A_COND_AL, 0, A_OP_ADC, r, imm)
446 #define emith_sub_r_imm(r, imm) \
447 emith_op_imm(A_COND_AL, 0, A_OP_SUB, r, imm)
449 #define emith_bic_r_imm(r, imm) \
450 emith_op_imm(A_COND_AL, 0, A_OP_BIC, r, imm)
452 #define emith_and_r_imm(r, imm) \
453 emith_op_imm(A_COND_AL, 0, A_OP_AND, r, imm)
455 #define emith_or_r_imm(r, imm) \
456 emith_op_imm(A_COND_AL, 0, A_OP_ORR, r, imm)
458 #define emith_eor_r_imm(r, imm) \
459 emith_op_imm(A_COND_AL, 0, A_OP_EOR, r, imm)
461 // note: only use 8bit imm for these
462 #define emith_tst_r_imm(r, imm) \
463 emith_top_imm(A_COND_AL, A_OP_TST, r, imm)
465 #define emith_cmp_r_imm(r, imm) { \
466 u32 op = A_OP_CMP, imm_ = imm; \
467 if (~imm_ < 0x100) { \
471 emith_top_imm(A_COND_AL, op, r, imm); \
474 #define emith_subf_r_imm(r, imm) \
475 emith_op_imm(A_COND_AL, 1, A_OP_SUB, r, imm)
477 #define emith_move_r_imm_c(cond, r, imm) \
478 emith_op_imm(cond, 0, A_OP_MOV, r, imm)
480 #define emith_add_r_imm_c(cond, r, imm) \
481 emith_op_imm(cond, 0, A_OP_ADD, r, imm)
483 #define emith_sub_r_imm_c(cond, r, imm) \
484 emith_op_imm(cond, 0, A_OP_SUB, r, imm)
486 #define emith_or_r_imm_c(cond, r, imm) \
487 emith_op_imm(cond, 0, A_OP_ORR, r, imm)
489 #define emith_eor_r_imm_c(cond, r, imm) \
490 emith_op_imm(cond, 0, A_OP_EOR, r, imm)
492 #define emith_bic_r_imm_c(cond, r, imm) \
493 emith_op_imm(cond, 0, A_OP_BIC, r, imm)
495 #define emith_move_r_imm_s8(r, imm) { \
497 EOP_MVN_IMM(r, 0, ((imm) ^ 0xff)); \
499 EOP_MOV_IMM(r, 0, imm); \
502 #define emith_and_r_r_imm(d, s, imm) \
503 emith_op_imm2(A_COND_AL, 0, A_OP_AND, d, s, imm)
505 #define emith_add_r_r_imm(d, s, imm) \
506 emith_op_imm2(A_COND_AL, 0, A_OP_ADD, d, s, imm)
508 #define emith_sub_r_r_imm(d, s, imm) \
509 emith_op_imm2(A_COND_AL, 0, A_OP_SUB, d, s, imm)
511 #define emith_neg_r_r(d, s) \
512 EOP_RSB_IMM(d, s, 0, 0)
514 #define emith_lsl(d, s, cnt) \
515 EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_LSL,cnt)
517 #define emith_lsr(d, s, cnt) \
518 EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_LSR,cnt)
520 #define emith_asr(d, s, cnt) \
521 EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_ASR,cnt)
523 #define emith_ror_c(cond, d, s, cnt) \
524 EOP_MOV_REG(cond,0,d,s,A_AM1_ROR,cnt)
526 #define emith_ror(d, s, cnt) \
527 emith_ror_c(A_COND_AL, d, s, cnt)
529 #define emith_rol(d, s, cnt) \
530 EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_ROR,32-(cnt)); \
532 #define emith_lslf(d, s, cnt) \
533 EOP_MOV_REG(A_COND_AL,1,d,s,A_AM1_LSL,cnt)
535 #define emith_lsrf(d, s, cnt) \
536 EOP_MOV_REG(A_COND_AL,1,d,s,A_AM1_LSR,cnt)
538 #define emith_asrf(d, s, cnt) \
539 EOP_MOV_REG(A_COND_AL,1,d,s,A_AM1_ASR,cnt)
541 // note: only C flag updated correctly
542 #define emith_rolf(d, s, cnt) { \
543 EOP_MOV_REG(A_COND_AL,1,d,s,A_AM1_ROR,32-(cnt)); \
544 /* we don't have ROL so we shift to get the right carry */ \
545 EOP_TST_REG(A_COND_AL,d,d,A_AM1_LSR,1); \
548 #define emith_rorf(d, s, cnt) \
549 EOP_MOV_REG(A_COND_AL,1,d,s,A_AM1_ROR,cnt)
551 #define emith_rolcf(d) \
554 #define emith_rorcf(d) \
555 EOP_MOV_REG(A_COND_AL,1,d,d,A_AM1_ROR,0) /* ROR #0 -> RRX */
557 #define emith_negcf_r_r(d, s) \
558 EOP_C_DOP_IMM(A_COND_AL,A_OP_RSC,1,s,d,0,0)
560 #define emith_mul(d, s1, s2) { \
561 if ((d) != (s1)) /* rd != rm limitation */ \
562 EOP_MUL(d, s1, s2); \
564 EOP_MUL(d, s2, s1); \
567 #define emith_mul_u64(dlo, dhi, s1, s2) \
568 EOP_C_UMULL(A_COND_AL,0,dhi,dlo,s1,s2)
570 #define emith_mul_s64(dlo, dhi, s1, s2) \
571 EOP_C_SMULL(A_COND_AL,0,dhi,dlo,s1,s2)
573 #define emith_mula_s64(dlo, dhi, s1, s2) \
574 EOP_C_SMLAL(A_COND_AL,0,dhi,dlo,s1,s2)
577 #define emith_read_r_r_offs_c(cond, r, rs, offs) \
578 EOP_LDR_IMM2(cond, r, rs, offs)
580 #define emith_read8_r_r_offs_c(cond, r, rs, offs) \
581 EOP_LDRB_IMM2(cond, r, rs, offs)
583 #define emith_read16_r_r_offs_c(cond, r, rs, offs) \
584 EOP_LDRH_IMM2(cond, r, rs, offs)
586 #define emith_read_r_r_offs(r, rs, offs) \
587 emith_read_r_r_offs_c(A_COND_AL, r, rs, offs)
589 #define emith_read8_r_r_offs(r, rs, offs) \
590 emith_read8_r_r_offs_c(A_COND_AL, r, rs, offs)
592 #define emith_read16_r_r_offs(r, rs, offs) \
593 emith_read16_r_r_offs_c(A_COND_AL, r, rs, offs)
595 #define emith_ctx_read(r, offs) \
596 emith_read_r_r_offs(r, CONTEXT_REG, offs)
598 #define emith_ctx_write(r, offs) \
599 EOP_STR_IMM(r, CONTEXT_REG, offs)
601 #define emith_ctx_do_multiple(op, r, offs, count, tmpr) do { \
602 int v_, r_ = r, c_ = count, b_ = CONTEXT_REG; \
603 for (v_ = 0; c_; c_--, r_++) \
606 EOP_ADD_IMM(tmpr,CONTEXT_REG,30/2,(offs)>>2);\
612 #define emith_ctx_read_multiple(r, offs, count, tmpr) \
613 emith_ctx_do_multiple(EOP_LDMIA, r, offs, count, tmpr)
615 #define emith_ctx_write_multiple(r, offs, count, tmpr) \
616 emith_ctx_do_multiple(EOP_STMIA, r, offs, count, tmpr)
618 #define emith_clear_msb_c(cond, d, s, count) { \
620 if ((count) <= 8) { \
622 t = (0xff << t) & 0xff; \
623 EOP_BIC_IMM(d,s,8/2,t); \
624 EOP_C_DOP_IMM(cond,A_OP_BIC,0,s,d,8/2,t); \
625 } else if ((count) >= 24) { \
628 EOP_AND_IMM(d,s,0,t); \
629 EOP_C_DOP_IMM(cond,A_OP_AND,0,s,d,0,t); \
631 EOP_MOV_REG(cond,0,d,s,A_AM1_LSL,count); \
632 EOP_MOV_REG(cond,0,d,d,A_AM1_LSR,count); \
636 #define emith_clear_msb(d, s, count) \
637 emith_clear_msb_c(A_COND_AL, d, s, count)
639 #define emith_sext(d, s, bits) { \
640 EOP_MOV_REG_LSL(d,s,32 - (bits)); \
641 EOP_MOV_REG_ASR(d,d,32 - (bits)); \
644 #define emith_do_caller_regs(mask, func) { \
645 u32 _reg_mask = (mask) & 0x500f; \
647 if (__builtin_parity(_reg_mask) == 1) \
648 _reg_mask |= 0x10; /* eabi align */ \
653 #define emith_save_caller_regs(mask) \
654 emith_do_caller_regs(mask, EOP_STMFD_SP)
656 #define emith_restore_caller_regs(mask) \
657 emith_do_caller_regs(mask, EOP_LDMFD_SP)
660 #define emith_pass_arg_r(arg, reg) \
661 EOP_MOV_REG_SIMPLE(arg, reg)
663 #define emith_pass_arg_imm(arg, imm) \
664 emith_move_r_imm(arg, imm)
666 #define emith_jump(target) \
667 emith_jump_cond(A_COND_AL, target)
669 #define emith_jump_patchable(target) \
672 #define emith_jump_cond(cond, target) \
673 emith_xbranch(cond, target, 0)
675 #define emith_jump_cond_patchable(cond, target) \
676 emith_jump_cond(cond, target)
678 #define emith_jump_patch(ptr, target) do { \
680 u32 val_ = (u32 *)(target) - ptr_ - 2; \
681 *ptr_ = (*ptr_ & 0xff000000) | (val_ & 0x00ffffff); \
684 #define emith_jump_at(ptr, target) { \
685 u32 val_ = (u32 *)(target) - (u32 *)(ptr) - 2; \
686 EOP_C_B_PTR(ptr, A_COND_AL, 0, val_ & 0xffffff); \
689 #define emith_jump_reg_c(cond, r) \
692 #define emith_jump_reg(r) \
693 emith_jump_reg_c(A_COND_AL, r)
695 #define emith_jump_ctx_c(cond, offs) \
696 EOP_LDR_IMM2(cond,15,CONTEXT_REG,offs)
698 #define emith_jump_ctx(offs) \
699 emith_jump_ctx_c(A_COND_AL, offs)
701 #define emith_call_cond(cond, target) \
702 emith_xbranch(cond, target, 1)
704 #define emith_call(target) \
705 emith_call_cond(A_COND_AL, target)
707 #define emith_call_ctx(offs) { \
708 emith_move_r_r(14, 15); \
709 emith_jump_ctx(offs); \
712 #define emith_ret_c(cond) \
713 emith_jump_reg_c(cond, 14)
715 #define emith_ret() \
716 emith_ret_c(A_COND_AL)
718 #define emith_ret_to_ctx(offs) \
719 emith_ctx_write(14, offs)
721 #define emith_push_ret() \
724 #define emith_pop_and_ret() \
727 #define host_instructions_updated(base, end) \
728 cache_flush_d_inval_i(base, end)
730 #define host_arg2reg(rd, arg) \
733 /* SH2 drc specific */
734 /* pushes r12 for eabi alignment */
735 #define emith_sh2_drc_entry() \
736 EOP_STMFD_SP(A_R4M|A_R5M|A_R6M|A_R7M|A_R8M|A_R9M|A_R10M|A_R11M|A_R12M|A_R14M)
738 #define emith_sh2_drc_exit() \
739 EOP_LDMFD_SP(A_R4M|A_R5M|A_R6M|A_R7M|A_R8M|A_R9M|A_R10M|A_R11M|A_R12M|A_R15M)
741 #define emith_sh2_wcall(a, tab) { \
742 emith_lsr(12, a, SH2_WRITE_SHIFT); \
743 EOP_LDR_REG_LSL(A_COND_AL,12,tab,12,2); \
744 emith_move_r_r(2, CONTEXT_REG); \
745 emith_jump_reg(12); \
748 #define emith_sh2_dtbf_loop() { \
750 int tmp_ = rcache_get_tmp(); \
751 cr = rcache_get_reg(SHR_SR, RC_GR_RMW); \
752 rn = rcache_get_reg((op >> 8) & 0x0f, RC_GR_RMW); \
753 emith_sub_r_imm(rn, 1); /* sub rn, #1 */ \
754 emith_bic_r_imm(cr, 1); /* bic cr, #1 */ \
755 emith_sub_r_imm(cr, (cycles+1) << 12); /* sub cr, #(cycles+1)<<12 */ \
757 emith_asrf(tmp_, cr, 2+12); /* movs tmp_, cr, asr #2+12 */\
758 EOP_MOV_IMM_C(A_COND_MI,tmp_,0,0); /* movmi tmp_, #0 */ \
759 emith_lsl(cr, cr, 20); /* mov cr, cr, lsl #20 */ \
760 emith_lsr(cr, cr, 20); /* mov cr, cr, lsr #20 */ \
761 emith_subf_r_r(rn, tmp_); /* subs rn, tmp_ */ \
762 EOP_RSB_IMM_C(A_COND_LS,tmp_,rn,0,0); /* rsbls tmp_, rn, #0 */ \
763 EOP_ORR_REG(A_COND_LS,0,cr,cr,tmp_,A_AM1_LSL,12+2); /* orrls cr,tmp_,lsl #12+2 */\
764 EOP_ORR_IMM_C(A_COND_LS,cr,cr,0,1); /* orrls cr, #1 */ \
765 EOP_MOV_IMM_C(A_COND_LS,rn,0,0); /* movls rn, #0 */ \
766 rcache_free_tmp(tmp_); \
769 #define emith_write_sr(sr, srcr) { \
770 emith_lsr(sr, sr, 10); \
771 emith_or_r_r_r_lsl(sr, sr, srcr, 22); \
772 emith_ror(sr, sr, 22); \
775 #define emith_carry_to_t(srr, is_sub) { \
776 if (is_sub) { /* has inverted C on ARM */ \
777 emith_or_r_imm_c(A_COND_CC, srr, 1); \
778 emith_bic_r_imm_c(A_COND_CS, srr, 1); \
780 emith_or_r_imm_c(A_COND_CS, srr, 1); \
781 emith_bic_r_imm_c(A_COND_CC, srr, 1); \
785 #define emith_tpop_carry(sr, is_sub) { \
787 emith_eor_r_imm(sr, 1); \
788 emith_lsrf(sr, sr, 1); \
791 #define emith_tpush_carry(sr, is_sub) { \
792 emith_adc_r_r(sr, sr); \
794 emith_eor_r_imm(sr, 1); \
799 * t = carry(Rn += Rm)
801 * t = carry(Rn -= Rm)
804 #define emith_sh2_div1_step(rn, rm, sr) { \
806 emith_tst_r_imm(sr, Q); /* if (Q ^ M) */ \
807 JMP_POS(jmp0); /* beq do_sub */ \
808 emith_addf_r_r(rn, rm); \
809 emith_eor_r_imm_c(A_COND_CS, sr, T); \
810 JMP_POS(jmp1); /* b done */ \
811 JMP_EMIT(A_COND_EQ, jmp0); /* do_sub: */ \
812 emith_subf_r_r(rn, rm); \
813 emith_eor_r_imm_c(A_COND_CC, sr, T); \
814 JMP_EMIT(A_COND_AL, jmp1); /* done: */ \