1 /* moxie-opc.c -- Definitions for moxie opcodes.
2    Copyright (C) 2009-2016 Free Software Foundation, Inc.
3    Contributed by Anthony Green (green@moxielogic.com).
4 
5    This file is part of the GNU opcodes library.
6 
7    This library is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 3, or (at your option)
10    any later version.
11 
12    It is distributed in the hope that it will be useful, but WITHOUT
13    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
15    License for more details.
16 
17    You should have received a copy of the GNU General Public License
18    along with this file; see the file COPYING.  If not, write to the
19    Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
20    MA 02110-1301, USA.  */
21 
22 #include "sysdep.h"
23 #include "opcode/moxie.h"
24 
25 /* The moxie processor's 16-bit instructions come in two forms:
26 
27   FORM 1 instructions start with a 0 bit...
28 
29     0oooooooaaaabbbb
30     0              F
31 
32    ooooooo - form 1 opcode number
33    aaaa    - operand A
34    bbbb    - operand B
35 
36   FORM 2 instructions start with bits "10"...
37 
38     10ooaaaavvvvvvvv
39     0              F
40 
41    oo       - form 2 opcode number
42    aaaa     - operand A
43    vvvvvvvv - 8-bit immediate value
44 
45   FORM 3 instructions start with a bits "11"...
46 
47     11oooovvvvvvvvvv
48     0              F
49 
50    oooo         - form 3 opcode number
51    vvvvvvvvvv   - 10-bit immediate value.  */
52 
53 const moxie_opc_info_t moxie_form1_opc_info[128] =
54   {
55     { 0x00, MOXIE_BAD,     "bad" },  // Reserved as bad.
56     { 0x01, MOXIE_F1_A4,   "ldi.l" },
57     { 0x02, MOXIE_F1_AB,   "mov" },
58     { 0x03, MOXIE_F1_M,    "jsra" },
59     { 0x04, MOXIE_F1_NARG, "ret" },
60     { 0x05, MOXIE_F1_AB,   "add" },
61     { 0x06, MOXIE_F1_AB,   "push" },
62     { 0x07, MOXIE_F1_AB,   "pop" },
63     { 0x08, MOXIE_F1_A4,   "lda.l" },
64     { 0x09, MOXIE_F1_4A,   "sta.l" },
65     { 0x0a, MOXIE_F1_ABi,  "ld.l" },
66     { 0x0b, MOXIE_F1_AiB,  "st.l" },
67     { 0x0c, MOXIE_F1_ABi2, "ldo.l" },
68     { 0x0d, MOXIE_F1_AiB2, "sto.l" },
69     { 0x0e, MOXIE_F1_AB,   "cmp" },
70     { 0x0f, MOXIE_F1_NARG, "nop" },
71     { 0x10, MOXIE_F1_AB,   "sex.b" },
72     { 0x11, MOXIE_F1_AB,   "sex.s" },
73     { 0x12, MOXIE_F1_AB,   "zex.b" },
74     { 0x13, MOXIE_F1_AB,   "zex.s" },
75     { 0x14, MOXIE_F1_AB,   "umul.x" },
76     { 0x15, MOXIE_F1_AB,   "mul.x" },
77     { 0x16, MOXIE_BAD,     "bad" },
78     { 0x17, MOXIE_BAD,     "bad" },
79     { 0x18, MOXIE_BAD,     "bad" },
80     { 0x19, MOXIE_F1_A,    "jsr" },
81     { 0x1a, MOXIE_F1_M,    "jmpa" },
82     { 0x1b, MOXIE_F1_A4,   "ldi.b" },
83     { 0x1c, MOXIE_F1_ABi,  "ld.b" },
84     { 0x1d, MOXIE_F1_A4,   "lda.b" },
85     { 0x1e, MOXIE_F1_AiB,  "st.b" },
86     { 0x1f, MOXIE_F1_4A,   "sta.b" },
87     { 0x20, MOXIE_F1_A4,   "ldi.s" },
88     { 0x21, MOXIE_F1_ABi,  "ld.s" },
89     { 0x22, MOXIE_F1_A4,   "lda.s" },
90     { 0x23, MOXIE_F1_AiB,  "st.s" },
91     { 0x24, MOXIE_F1_4A,   "sta.s" },
92     { 0x25, MOXIE_F1_A,    "jmp" },
93     { 0x26, MOXIE_F1_AB,   "and" },
94     { 0x27, MOXIE_F1_AB,   "lshr" },
95     { 0x28, MOXIE_F1_AB,   "ashl" },
96     { 0x29, MOXIE_F1_AB,   "sub" },
97     { 0x2a, MOXIE_F1_AB,   "neg" },
98     { 0x2b, MOXIE_F1_AB,   "or" },
99     { 0x2c, MOXIE_F1_AB,   "not" },
100     { 0x2d, MOXIE_F1_AB,   "ashr" },
101     { 0x2e, MOXIE_F1_AB,   "xor" },
102     { 0x2f, MOXIE_F1_AB,   "mul" },
103     { 0x30, MOXIE_F1_4,    "swi" },
104     { 0x31, MOXIE_F1_AB,   "div" },
105     { 0x32, MOXIE_F1_AB,   "udiv" },
106     { 0x33, MOXIE_F1_AB,   "mod" },
107     { 0x34, MOXIE_F1_AB,   "umod" },
108     { 0x35, MOXIE_F1_NARG, "brk" },
109     { 0x36, MOXIE_F1_ABi2, "ldo.b" },
110     { 0x37, MOXIE_F1_AiB2, "sto.b" },
111     { 0x38, MOXIE_F1_ABi2, "ldo.s" },
112     { 0x39, MOXIE_F1_AiB2, "sto.s" },
113     { 0x3a, MOXIE_BAD,     "bad" },
114     { 0x3b, MOXIE_BAD,     "bad" },
115     { 0x3c, MOXIE_BAD,     "bad" },
116     { 0x3d, MOXIE_BAD,     "bad" },
117     { 0x3e, MOXIE_BAD,     "bad" },
118     { 0x3f, MOXIE_BAD,     "bad" },
119     { 0x40, MOXIE_BAD,     "bad" },
120     { 0x41, MOXIE_BAD,     "bad" },
121     { 0x42, MOXIE_BAD,     "bad" },
122     { 0x43, MOXIE_BAD,     "bad" },
123     { 0x44, MOXIE_BAD,     "bad" },
124     { 0x45, MOXIE_BAD,     "bad" },
125     { 0x46, MOXIE_BAD,     "bad" },
126     { 0x47, MOXIE_BAD,     "bad" },
127     { 0x48, MOXIE_BAD,     "bad" },
128     { 0x49, MOXIE_BAD,     "bad" },
129     { 0x4a, MOXIE_BAD,     "bad" },
130     { 0x4b, MOXIE_BAD,     "bad" },
131     { 0x4c, MOXIE_BAD,     "bad" },
132     { 0x4d, MOXIE_BAD,     "bad" },
133     { 0x4e, MOXIE_BAD,     "bad" },
134     { 0x4f, MOXIE_BAD,     "bad" },
135     { 0x50, MOXIE_BAD,     "bad" },
136     { 0x51, MOXIE_BAD,     "bad" },
137     { 0x52, MOXIE_BAD,     "bad" },
138     { 0x53, MOXIE_BAD,     "bad" },
139     { 0x54, MOXIE_BAD,     "bad" },
140     { 0x55, MOXIE_BAD,     "bad" },
141     { 0x56, MOXIE_BAD,     "bad" },
142     { 0x57, MOXIE_BAD,     "bad" },
143     { 0x58, MOXIE_BAD,     "bad" },
144     { 0x59, MOXIE_BAD,     "bad" },
145     { 0x5a, MOXIE_BAD,     "bad" },
146     { 0x5b, MOXIE_BAD,     "bad" },
147     { 0x5c, MOXIE_BAD,     "bad" },
148     { 0x5d, MOXIE_BAD,     "bad" },
149     { 0x5e, MOXIE_BAD,     "bad" },
150     { 0x5f, MOXIE_BAD,     "bad" },
151     { 0x60, MOXIE_BAD,     "bad" },
152     { 0x61, MOXIE_BAD,     "bad" },
153     { 0x62, MOXIE_BAD,     "bad" },
154     { 0x63, MOXIE_BAD,     "bad" },
155     { 0x64, MOXIE_BAD,     "bad" },
156     { 0x65, MOXIE_BAD,     "bad" },
157     { 0x66, MOXIE_BAD,     "bad" },
158     { 0x67, MOXIE_BAD,     "bad" },
159     { 0x68, MOXIE_BAD,     "bad" },
160     { 0x69, MOXIE_BAD,     "bad" },
161     { 0x6a, MOXIE_BAD,     "bad" },
162     { 0x6b, MOXIE_BAD,     "bad" },
163     { 0x6c, MOXIE_BAD,     "bad" },
164     { 0x6d, MOXIE_BAD,     "bad" },
165     { 0x6e, MOXIE_BAD,     "bad" },
166     { 0x6f, MOXIE_BAD,     "bad" },
167     { 0x70, MOXIE_BAD,     "bad" },
168     { 0x71, MOXIE_BAD,     "bad" },
169     { 0x72, MOXIE_BAD,     "bad" },
170     { 0x73, MOXIE_BAD,     "bad" },
171     { 0x74, MOXIE_BAD,     "bad" },
172     { 0x75, MOXIE_BAD,     "bad" },
173     { 0x76, MOXIE_BAD,     "bad" },
174     { 0x77, MOXIE_BAD,     "bad" },
175     { 0x78, MOXIE_BAD,     "bad" },
176     { 0x79, MOXIE_BAD,     "bad" },
177     { 0x7a, MOXIE_BAD,     "bad" },
178     { 0x7b, MOXIE_BAD,     "bad" },
179     { 0x7c, MOXIE_BAD,     "bad" },
180     { 0x7d, MOXIE_BAD,     "bad" },
181     { 0x7e, MOXIE_BAD,     "bad" },
182     { 0x7f, MOXIE_BAD,     "bad" }
183   };
184 
185 const moxie_opc_info_t moxie_form2_opc_info[4] =
186   {
187     { 0x00, MOXIE_F2_A8V,  "inc" },
188     { 0x01, MOXIE_F2_A8V,  "dec" },
189     { 0x02, MOXIE_F2_A8V,  "gsr" },
190     { 0x03, MOXIE_F2_A8V,  "ssr" }
191   };
192 
193 const moxie_opc_info_t moxie_form3_opc_info[16] =
194   {
195     { 0x00, MOXIE_F3_PCREL,"beq" },
196     { 0x01, MOXIE_F3_PCREL,"bne" },
197     { 0x02, MOXIE_F3_PCREL,"blt" },
198     { 0x03, MOXIE_F3_PCREL,"bgt" },
199     { 0x04, MOXIE_F3_PCREL,"bltu" },
200     { 0x05, MOXIE_F3_PCREL,"bgtu" },
201     { 0x06, MOXIE_F3_PCREL,"bge" },
202     { 0x07, MOXIE_F3_PCREL,"ble" },
203     { 0x08, MOXIE_F3_PCREL,"bgeu" },
204     { 0x09, MOXIE_F3_PCREL,"bleu" },
205     { 0x0a, MOXIE_BAD,     "bad" },
206     { 0x0b, MOXIE_BAD,     "bad" },
207     { 0x0c, MOXIE_BAD,     "bad" },
208     { 0x0d, MOXIE_BAD,     "bad" },
209     { 0x0e, MOXIE_BAD,     "bad" },
210     { 0x0f, MOXIE_BAD,     "bad" }  // Reserved as bad.
211   };
212