1// -*- mode:c++ -*-
2
3// Copyright (c) 2007-2008 The Florida State University
4// All rights reserved.
5//
6// Redistribution and use in source and binary forms, with or without
7// modification, are permitted provided that the following conditions are
8// met: redistributions of source code must retain the above copyright

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29// Authors: Stephen Hines
30
31////////////////////////////////////////////////////////////////////
32//
33// Bitfield definitions.
34//
35
36// Opcode fields
37def bitfield OPCODE <27:25>;
38def bitfield OPCODE_27_25 <27:25>;
39def bitfield OPCODE_24_21 <24:21>;
40def bitfield OPCODE_24_23 <24:23>;
41def bitfield OPCODE_24 <24:24>;
42def bitfield OPCODE_23_20 <23:20>;
43def bitfield OPCODE_23_21 <23:21>;
44def bitfield OPCODE_23 <23:23>;
45def bitfield OPCODE_22_8 <22: 8>;
46def bitfield OPCODE_22_21 <22:21>;
47def bitfield OPCODE_22 <22:22>;
48def bitfield OPCODE_21_20 <21:20>;
49def bitfield OPCODE_20 <20:20>;
50def bitfield OPCODE_19_18 <19:18>;
51def bitfield OPCODE_19 <19:19>;
52def bitfield OPCODE_15_12 <15:12>;
53def bitfield OPCODE_15 <15:15>;
54def bitfield OPCODE_9 < 9: 9>;
55def bitfield OPCODE_7_4 < 7: 4>;
56def bitfield OPCODE_7_5 < 7: 5>;
57def bitfield OPCODE_7_6 < 7: 6>;
58def bitfield OPCODE_7 < 7: 7>;
59def bitfield OPCODE_6_5 < 6: 5>;
60def bitfield OPCODE_6 < 6: 6>;
61def bitfield OPCODE_5 < 5: 5>;
62def bitfield OPCODE_4 < 4: 4>;
63
64// Other
65def bitfield COND_CODE <31:28>;
66def bitfield S_FIELD <20:20>;
67def bitfield RN <19:16>;
68def bitfield RD <15:12>;
69def bitfield SHIFT_SIZE <11: 7>;
70def bitfield SHIFT < 6: 5>;
71def bitfield RM < 3: 0>;
72
73def bitfield RS <11: 8>;
74
75def bitfield RDUP <19:16>;
76def bitfield RNDN <15:12>;
77
78def bitfield RDHI <15:12>;
79def bitfield RDLO <11: 8>;
80
81def bitfield U_FIELD <23:23>;
82
83def bitfield PUSWL <24:20>;
84def bitfield PREPOST <24:24>;
85def bitfield UP <23:23>;
86def bitfield PSRUSER <22:22>;
87def bitfield WRITEBACK <21:21>;
88def bitfield LOADOP <20:20>;
89
90def bitfield PUBWL <24:20>;
91def bitfield PUIWL <24:20>;
92def bitfield BYTEACCESS <22:22>;
93
94def bitfield LUAS <23:20>;
95
96def bitfield IMM < 7: 0>;
97def bitfield IMMED_7_4 < 7: 4>;
98def bitfield IMMED_3_0 < 3: 0>;
99
100def bitfield F_MSR <19:19>;
101def bitfield S_MSR <18:18>;
102def bitfield X_MSR <17:17>;
103def bitfield C_MSR <16:16>;
104
105def bitfield Y_6 < 6: 6>;
106def bitfield X_5 < 5: 5>;
107
108def bitfield IMMED_15_4 <15: 4>;
109
110def bitfield W_FIELD <21:21>;
111
112def bitfield ROTATE <11: 8>;
113def bitfield IMMED_7_0 < 7: 0>;
114
115def bitfield T_FIELD <21:21>;
116def bitfield IMMED_11_0 <11: 0>;
117
118def bitfield IMMED_20_16 <20:16>;
119def bitfield IMMED_19_16 <19:16>;
120
121def bitfield IMMED_HI_11_8 <11: 8>;
122def bitfield IMMED_LO_3_0 < 3: 0>;
123
124def bitfield ROT <11:10>;
125
126def bitfield R_FIELD < 5: 5>;
127
128def bitfield CARET <22:22>;
129def bitfield REGLIST <15: 0>;
130
131def bitfield OFFSET <23: 0>;
132def bitfield COPRO <11: 8>;
133def bitfield OP1_7_4 < 7: 4>;
134def bitfield CM < 3: 0>;
135
136def bitfield L_FIELD <22:22>;
137def bitfield CD <15:12>;
138def bitfield OPTION < 7: 0>;
139
140def bitfield OP1_23_20 <23:20>;
141def bitfield CN <19:16>;
142def bitfield OP2_7_5 < 7: 5>;
143
144def bitfield OP1_23_21 <23:21>;
145
146def bitfield IMMED_23_0 <23: 0>;
147def bitfield M_FIELD <17:17>;
148def bitfield A_FIELD < 8: 8>;
149def bitfield I_FIELD < 7: 7>;
150def bitfield F_FIELD < 6: 6>;
151def bitfield MODE < 4: 0>;
152
153def bitfield A_BLX <24:24>;
154
155def bitfield CPNUM <11: 8>;
156// Note that FP Regs are only 3 bits
157def bitfield FN <18:16>;
158def bitfield FD <14:12>;
159def bitfield FPREGIMM < 3: 3>;
160// We can just use 3:0 for FM since the hard-wired FP regs are handled in
161// float_regfile.hh
162def bitfield FM < 3: 0>;
163def bitfield FPIMM < 2: 0>;
164def bitfield PUNWL <24:20>;
165
166// M5 instructions
167def bitfield M5FUNC <7:0>;
168