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Commit | Line | Data |
---|---|---|
1 | `define COND_EQ 4'b0000 /* Z set */ | |
2 | `define COND_NE 4'b0001 /* Z clear */ | |
3 | `define COND_CS 4'b0010 /* C set */ | |
4 | `define COND_CC 4'b0011 /* C clear */ | |
5 | `define COND_MI 4'b0100 /* N set */ | |
6 | `define COND_PL 4'b0101 /* N clear */ | |
7 | `define COND_VS 4'b0110 /* V set */ | |
8 | `define COND_VC 4'b0111 /* V clear */ | |
9 | `define COND_HI 4'b1000 /* C set and Z clear */ | |
10 | `define COND_LS 4'b1001 /* C clear or Z set */ | |
11 | `define COND_GE 4'b1010 /* N equal to V */ | |
12 | `define COND_LT 4'b1011 /* N not equal to V */ | |
13 | `define COND_GT 4'b1100 /* Z clear AND (N equals V) */ | |
14 | `define COND_LE 4'b1101 /* Z set OR (N not equals V) */ | |
15 | `define COND_AL 4'b1110 /* TRUE */ | |
16 | `define COND_NV 4'b1111 /* FALSE */ | |
17 | ||
18 | `define COND_MATTERS(x) ((x != `COND_AL) && (x != `COND_NV)) | |
19 | ||
20 | `define ALU_AND 4'b0000 | |
21 | `define ALU_EOR 4'b0001 | |
22 | `define ALU_SUB 4'b0010 | |
23 | `define ALU_RSB 4'b0011 | |
24 | `define ALU_ADD 4'b0100 | |
25 | `define ALU_ADC 4'b0101 | |
26 | `define ALU_SBC 4'b0110 | |
27 | `define ALU_RSC 4'b0111 | |
28 | `define ALU_TST 4'b1000 | |
29 | `define ALU_TEQ 4'b1001 | |
30 | `define ALU_CMP 4'b1010 | |
31 | `define ALU_CMN 4'b1011 | |
32 | `define ALU_ORR 4'b1100 | |
33 | `define ALU_MOV 4'b1101 | |
34 | `define ALU_BIC 4'b1110 | |
35 | `define ALU_MVN 4'b1111 | |
36 | ||
37 | `define SHIFT_LSL 2'b00 | |
38 | `define SHIFT_LSR 2'b01 | |
39 | `define SHIFT_ASR 2'b10 | |
40 | `define SHIFT_ROR 2'b11 | |
41 | ||
42 | `define CPSR_N 31 | |
43 | `define CPSR_Z 30 | |
44 | `define CPSR_C 29 | |
45 | `define CPSR_V 28 | |
46 | `define CPSR_I 7 | |
47 | `define CPSR_F 6 | |
48 | ||
49 | `define SHIFT_LSL 2'b00 | |
50 | `define SHIFT_LSR 2'b01 | |
51 | `define SHIFT_ASR 2'b10 | |
52 | `define SHIFT_ROR 2'b11 | |
53 | ||
54 | `define DECODE_ALU_MULT 32'b????000000??????????????1001???? /* Multiply -- must come before ALU, because it pattern matches a specific case of ALU */ | |
55 | `define DECODE_ALU_MUL_LONG 32'b????00001???????????????1001???? /* Multiply long */ | |
56 | `define DECODE_ALU_MRS 32'b????00010?001111????000000000000 /* MRS (Transfer PSR to register) */ | |
57 | `define DECODE_ALU_MSR 32'b????00010?101001111100000000???? /* MSR (Transfer register to PSR) */ | |
58 | `define DECODE_ALU_MSR_FLAGS 32'b????00?10?1010001111???????????? /* MSR (Transfer register or immediate to PSR, flag bits only) */ | |
59 | `define DECODE_ALU_SWP 32'b????00010?00????????00001001???? /* Atomic swap */ | |
60 | `define DECODE_ALU_BX 32'b????000100101111111111110001???? /* Branch and exchange */ | |
61 | `define DECODE_ALU_HDATA_REG 32'b????000??0??????????00001??1???? /* Halfword transfer - register offset */ | |
62 | `define DECODE_ALU_HDATA_IMM 32'b????000??1??????????00001??1???? /* Halfword transfer - immediate offset */ | |
63 | `define DECODE_ALU 32'b????00?????????????????????????? /* ALU */ | |
64 | `define DECODE_LDRSTR_UNDEFINED 32'b????011????????????????????1???? /* Undefined. I hate ARM */ | |
65 | `define DECODE_LDRSTR 32'b????01?????????????????????????? /* Single data transfer */ | |
66 | `define DECODE_LDMSTM 32'b????100????????????????????????? /* Block data transfer */ | |
67 | `define DECODE_BRANCH 32'b????101????????????????????????? /* Branch */ | |
68 | `define DECODE_LDCSTC 32'b????110????????????????????????? /* Coprocessor data transfer */ | |
69 | `define DECODE_CDP 32'b????1110???????????????????0???? /* Coprocessor data op */ | |
70 | `define DECODE_MRCMCR 32'b????1110???????????????????1???? /* Coprocessor register transfer */ | |
71 | `define DECODE_SWI 32'b????1111???????????????????????? /* SWI */ | |
72 | ||
73 | `define MODE_USR 5'b10000 | |
74 | `define MODE_FIQ 5'b10001 | |
75 | `define MODE_IRQ 5'b10010 | |
76 | `define MODE_SVC 5'b10011 | |
77 | `define MODE_ABT 5'b10111 | |
78 | `define MODE_UND 5'b11011 | |
79 | `define MODE_SYS 5'b11111 |