2 * Copyright (c) 2015 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 Copyright (c) 2004 Eliot Dresselhaus
18 Permission is hereby granted, free of charge, to any person obtaining
19 a copy of this software and associated documentation files (the
20 "Software"), to deal in the Software without restriction, including
21 without limitation the rights to use, copy, modify, merge, publish,
22 distribute, sublicense, and/or sell copies of the Software, and to
23 permit persons to whom the Software is furnished to do so, subject to
24 the following conditions:
26 The above copyright notice and this permission notice shall be
27 included in all copies or substantial portions of the Software.
29 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
30 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
31 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
32 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
33 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
34 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
35 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
38 #ifndef included_asm_mips_h
39 #define included_asm_mips_h
41 /* Encoding of MIPS instructions. */
42 /* Encoding of opcode field (op). */
43 #define mips_foreach_opcode \
44 _(SPECIAL) _(REGIMM) _(j) _(jal) _(beq) _(bne) _(blez) _(bgtz) \
45 _(addi) _(addiu) _(slti) _(sltiu) _(andi) _(ori) _(xori) _(lui) \
46 _(COP0) _(COP1) _(COP2) _(COP1X) _(beql) _(bnel) _(blezl) _(bgtzl) \
47 _(daddi) _(daddiu) _(ldl) _(ldr) _(SPECIAL2) _(jalx) _(MDMX) _(O37) \
48 _(lb) _(lh) _(lwl) _(lw) _(lbu) _(lhu) _(lwr) _(lwu) \
49 _(sb) _(sh) _(swl) _(sw) _(sdl) _(sdr) _(swr) _(cache) \
50 _(ll) _(lwc1) _(lwc2) _(pref) _(lld) _(ldc1) _(ldc2) _(ld) \
51 _(sc) _(swc1) _(swc2) _(o73) _(scd) _(sdc1) _(sdc2) _(sd)
53 /* Encoding of funct field. */
54 #define mips_foreach_special_funct \
55 _(sll) _(MOVCI) _(srl) _(sra) _(sllv) _(o05) _(srlv) _(srav) \
56 _(jr) _(jalr) _(movz) _(movn) _(syscall) _(break) _(o16) _(sync) \
57 _(mfhi) _(mthi) _(mflo) _(mtlo) _(dsllv) _(o25) _(dsrlv) _(dsrav) \
58 _(mult) _(multu) _(div) _(divu) _(dmult) _(dmultu) _(ddiv) _(ddivu) \
59 _(add) _(addu) _(sub) _(subu) _(and) _(or) _(xor) _(nor) \
60 _(o50) _(o51) _(slt) _(sltu) _(dadd) _(daddu) _(dsub) _(dsubu) \
61 _(tge) _(tgeu) _(tlt) _(tltu) _(teq) _(o65) _(tne) _(o67) \
62 _(dsll) _(o71) _(dsrl) _(dsra) _(dsll32) _(o75) _(dsrl32) _(dsra32)
64 /* SPECIAL2 encoding of funct field. */ \
65 #define mips_foreach_special2_funct \
66 _(madd) _(maddu) _(mul) _(o03) _(msub) _(msubu) _(o06) _(o07) \
67 _(o10) _(o11) _(o12) _(o13) _(o14) _(o15) _(o16) _(o17) \
68 _(o20) _(o21) _(o22) _(o23) _(o24) _(o25) _(o26) _(o27) \
69 _(o30) _(o31) _(o32) _(o33) _(o34) _(o35) _(o36) _(o37) \
70 _(clz) _(clo) _(o42) _(o43) _(dclz) _(dclo) _(o46) _(o47) \
71 _(o50) _(o51) _(o52) _(o53) _(o54) _(o55) _(o56) _(o57) \
72 _(o60) _(o61) _(o62) _(o63) _(o64) _(o65) _(o66) _(o67) \
73 _(o70) _(o71) _(o72) _(o73) _(o74) _(o75) _(o76) _(sdbbp)
75 /* REGIMM encoding of rt field. */
76 #define mips_foreach_regimm_rt \
77 _(bltz) _(bgez) _(bltzl) _(bgezl) _(o04) _(o05) _(o06) _(o07) \
78 _(tgei) _(tgeiu) _(tltiu) _(teqi) _(o14) _(tnei) _(o16) _(o17) \
79 _(bltzal) _(bgezal) _(bltzall) _(bgezall) _(o24) _(o25) _(o26) _(o27) \
80 _(o30) _(o31) _(o32) _(o33) _(o34) _(o35) _(o36) _(o37)
82 /* COP0 encoding of rs field. */
83 #define mips_foreach_cop0_rs \
84 _(mfc0) _(dmfc0) _(o02) _(o03) _(mtc0) _(dmtc0) _(o06) _(o07) \
85 _(o10) _(o11) _(o12) _(o13) _(o14) _(o15) _(o16) _(o17) \
86 _(C0) _(o21) _(o22) _(o23) _(o24) _(o25) _(o26) _(o27) \
87 _(o30) _(o31) _(o32) _(o33) _(o34) _(o35) _(o36) _(o37)
89 /* COP0 encoding of funct when rs == RS_CO */
90 #define mips_foreach_cop0_funct \
91 _(o00) _(tlbr) _(tlbwi) _(o03) _(o04) _(o05) _(tlbwr) _(o07) \
92 _(tlbp) _(o11) _(o12) _(o13) _(o14) _(o15) _(o16) _(o17) \
93 _(o20) _(o21) _(o22) _(o23) _(o24) _(o25) _(o26) _(o27) \
94 _(eret) _(o31) _(o32) _(o33) _(o34) _(o35) _(o36) _(deret) \
95 _(wait) _(o41) _(o42) _(o43) _(o44) _(o45) _(o46) _(o47) \
96 _(o50) _(o51) _(o52) _(o53) _(o54) _(o55) _(o56) _(o57) \
97 _(o60) _(o61) _(o62) _(o63) _(o64) _(o65) _(o66) _(o67) \
98 _(o70) _(o71) _(o72) _(o73) _(o74) _(o75) _(o76) _(o77)
100 /* COP1 encoding of rs field. */
101 #define mips_foreach_cop1_rs \
102 _(mfc1) _(dmfc1) _(cfc1) _(o03) _(mtc1) _(dmtc1) _(ctc1) _(o07) \
103 _(BC1) _(o11) _(o12) _(o13) _(o14) _(o15) _(o16) _(o17) \
104 _(S) _(D) _(o22) _(o23) _(W) _(L) _(o26) _(o27) \
105 _(o30) _(o31) _(o32) _(o33) _(o34) _(o35) _(o36) _(o37)
107 /* COP1 encoding of funct for S and D */
108 #define mips_foreach_cop1_funct \
109 _(add) _(sub) _(mul) _(div) _(sqrt) _(abs) _(mov) _(neg) \
110 _(roundl) _(truncl) _(ceill) _(floorl) _(roundw) _(truncw) _(ceilw) _(floorw) \
111 _(o20) _(MOVCF) _(movz) _(movn) _(o24) _(recip) _(rsqrt) _(o27) \
112 _(o30) _(o31) _(o32) _(o33) _(o34) _(o35) _(o36) _(o37) \
113 _(cvts) _(cvtd) _(o42) _(o43) _(cvtw) _(cvtl) _(o46) _(o47) \
114 _(o50) _(o51) _(o52) _(o53) _(o54) _(o55) _(o56) _(o57) \
115 _(cf) _(cun) _(ceq) _(cueq) _(colt) _(cult) _(cole) _(cule) \
116 _(csf) _(cngle) _(cseq) _(cngl) _(clt) _(cnge) _(cle) _(cngt)
118 /* COP1X encoding of funct */
119 #define mips_foreach_cop1x_funct \
120 _(lwxc1) _(ldxc1) _(o02) _(o03) _(o04) _(luxc1) _(o06) _(o07) \
121 _(swxc1) _(sdxc1) _(o12) _(o13) _(o14) _(suxc1) _(o16) _(prefx) \
122 _(o20) _(o21) _(o22) _(o23) _(o24) _(o25) _(o26) _(o27) \
123 _(o30) _(o31) _(o32) _(o33) _(o34) _(o35) _(o36) _(o37) \
124 _(madds) _(maddd) _(o42) _(o43) _(o44) _(o45) _(o46) _(o47) \
125 _(msubs) _(msubd) _(o52) _(o53) _(o54) _(o55) _(o56) _(o57) \
126 _(nmadds) _(nmaddd) _(o62) _(o63) _(o64) _(o65) _(o66) _(o67) \
127 _(nmsubs) _(nmsubd) _(o72) _(o73) _(o74) _(o75) _(o76) _(o77)
129 #define mips_foreach_mdmx_funct \
130 _(msgn) _(ceq) _(pickf) _(pickt) _(clt) _(cle) _(min) _(max) \
131 _(o10) _(o11) _(sub) _(add) _(and) _(xor) _(or) _(nor) \
132 _(sll) _(o21) _(srl) _(sra) _(o24) _(o25) _(o26) _(o27) \
133 _(alniob) _(alnvob) _(alniqh) _(alnvqh) _(o34) _(o35) _(o36) _(shfl) \
134 _(rzu) _(rnau) _(rneu) _(o43) _(rzs) _(rnas) _(rnes) _(o47) \
135 _(o50) _(o51) _(o52) _(o53) _(o54) _(o55) _(o56) _(o57) \
136 _(mul) _(o61) _(muls) _(mula) _(o64) _(o65) _(suba) _(adda) \
137 _(o70) _(o71) _(o72) _(o73) _(o74) _(o75) _(wac) _(rac)
139 #define _(f) MIPS_OPCODE_##f,
142 } mips_insn_opcode_t;
145 #define _(f) MIPS_SPECIAL_FUNCT_##f,
147 mips_foreach_special_funct
148 } mips_insn_special_funct_t;
151 #define _(f) MIPS_SPECIAL2_FUNCT_##f,
153 mips_foreach_special2_funct
154 } mips_insn_special2_funct_t;
157 #define _(f) MIPS_REGIMM_RT_##f,
159 mips_foreach_regimm_rt
160 } mips_insn_regimm_rt_t;
163 #define _(f) MIPS_COP0_RS_##f,
166 } mips_insn_cop0_rs_t;
169 #define _(f) MIPS_COP0_FUNCT_##f,
171 mips_foreach_cop0_funct
172 } mips_insn_cop0_funct_t;
175 #define _(f) MIPS_COP1_RS_##f,
178 } mips_insn_cop1_rs_t;
181 #define _(f) MIPS_COP1_FUNCT_##f,
183 mips_foreach_cop1_funct
184 } mips_insn_cop1_funct_t;
187 #define _(f) MIPS_COP1X_FUNCT_##f,
189 mips_foreach_cop1x_funct
190 } mips_insn_cop1x_funct_t;
193 #define _(f) MIPS_MDMX_FUNCT_##f,
195 mips_foreach_mdmx_funct
196 } mips_insn_mdmx_funct_t;
199 always_inline mips_insn_opcode_t
200 mips_insn_get_op (u32 insn)
201 { return (insn >> 26) & 0x3f; }
204 mips_insn_get_rs (u32 insn)
205 { return (insn >> 21) & 0x1f; }
208 mips_insn_get_rt (u32 insn)
209 { return (insn >> 16) & 0x1f; }
212 mips_insn_get_rd (u32 insn)
213 { return (insn >> 11) & 0x1f; }
216 mips_insn_get_sa (u32 insn)
217 { return (insn >> 6) & 0x1f; }
220 mips_insn_get_funct (u32 insn)
221 { return (insn >> 0) & 0x3f; }
224 mips_insn_get_immediate (u32 insn)
225 { return (((i32) insn) << 16) >> 16; }
228 mips_insn_encode_i_type (int op, int rs, int rt, int immediate)
236 ASSERT (mips_insn_get_immediate (insn) == immediate);
237 ASSERT (mips_insn_get_rt (insn) == rt);
238 ASSERT (mips_insn_get_rs (insn) == rt);
239 ASSERT (mips_insn_get_op (insn) == op);
245 mips_insn_encode_j_type (int op, u32 addr)
249 insn = (addr & ((1 << 28) - 1)) / 4;
256 mips_insn_encode_r_type (int op, int rs, int rt, int rd, int sa, int funct)
266 ASSERT (mips_insn_get_funct (insn) == funct);
267 ASSERT (mips_insn_get_sa (insn) == sa);
268 ASSERT (mips_insn_get_rd (insn) == rd);
269 ASSERT (mips_insn_get_rt (insn) == rt);
270 ASSERT (mips_insn_get_rs (insn) == rt);
271 ASSERT (mips_insn_get_op (insn) == op);
276 #define mips_insn_r(op,funct,rd,rs,rt,sa) \
277 mips_insn_encode_r_type (MIPS_OPCODE_##op, \
278 (rs), (rt), (rd), (sa), \
279 MIPS_##op##_FUNCT_##funct)
281 #define mips_insn_i(op,rs,rt,imm) \
282 mips_insn_encode_i_type (MIPS_OPCODE_##op, (rs), (rt), (imm))
284 #define mips_insn_j(op,target) \
285 mips_insn_encode_i_type (MIPS_OPCODE_##op, (rs), (rt), (imm))
287 /* Generate unsigned load instructions of data of various sizes. */
289 mips_insn_load (u32 rd, i32 offset, u32 base, u32 log2_bytes)
293 ASSERT (log2_bytes < 4);
297 op = MIPS_OPCODE_lbu;
300 op = MIPS_OPCODE_lhu;
303 op = MIPS_OPCODE_lwu;
310 return mips_insn_encode_i_type (op, base, rd, offset);
318 #endif /* included_asm_mips_h */