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 */
18 `define COND_MATTERS(x) ((x != `COND_AL) && (x != `COND_NV))
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
37 `define SHIFT_LSL 2'b00
38 `define SHIFT_LSR 2'b01
39 `define SHIFT_ASR 2'b10
40 `define SHIFT_ROR 2'b11
49 `define SHIFT_LSL 2'b00
50 `define SHIFT_LSR 2'b01
51 `define SHIFT_ASR 2'b10
52 `define SHIFT_ROR 2'b11
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 */
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