// OPCODE, MNEMONIC, TYPE, DOC;

0,  UN,     N,    "Cause an unreachable code trap"        ;
1,  TX,     N,    "Termiante execution"                   ;
2,  NOP,    N,    "Do nothing"                            ;

3,  ADD,    RRR,  "Addition"                              ;
4,  SUB,    RRR,  "Subtraction"                           ;
5,  MUL,    RRR,  "Multiplication"                        ;
6,  AND,    RRR,  "Bitand"                                ;
7,  OR,     RRR,  "Bitor"                                 ;
8,  XOR,    RRR,  "Bitxor"                                ;
9,  SL,     RRR,  "Unsigned left bitshift"                ;
10, SR,     RRR,  "Unsigned right bitshift"               ;
11, SRS,    RRR,  "Signed right bitshift"                 ;
12, CMP,    RRR,  "Signed comparsion"                     ;
13, CMPU,   RRR,  "Unsigned comparsion"                   ;
14, DIR,    RRRR, "Merged divide-remainder"               ;
15, NEG,    RR,   "Bit negation"                          ;
16, NOT,    RR,   "Logical negation"                      ;
17, ADDI,   RRD,  "Addition with immediate"               ;
18, MULI,   RRD,  "Multiplication with immediate"         ;
19, ANDI,   RRD,  "Bitand with immediate"                 ;
20, ORI,    RRD,  "Bitor with immediate"                  ;
21, XORI,   RRD,  "Bitxor with immediate"                 ;
22, SLI,    RRW,  "Unsigned left bitshift with immedidate";
23, SRI,    RRW,  "Unsigned right bitshift with immediate";
24, SRSI,   RRW,  "Signed right bitshift with immediate"  ;
25, CMPI,   RRD,  "Signed compare with immediate"         ;
26, CMPUI,  RRD,  "Unsigned compare with immediate"       ;

27, CP,     RR,   "Copy register"                         ;
28, SWA,    RR,   "Swap registers"                        ;
29, LI,     RD,   "Load immediate"                        ;
30, LRA,    RRO,  "Load relative address"                 ;
31, LD,     RRAH, "Load from absolute address"            ;
32, ST,     RRAH, "Store to absolute address"             ;
33, LDR,    RROH, "Load from relative address"            ;
34, STR,    RROH, "Store to relative address"             ;
35, BMC,    RRH,  "Copy block of memory"                  ;
36, BRC,    RRB,  "Copy register block"                   ;

37, JMP,    O,    "Relative jump"                         ;
38, JAL,    RRA,  "Linking absolute jump"                 ;
39, JALR,   RRO,  "Linking relative jump"                 ;
40, JEQ,    RRP,  "Branch on equal"                       ;
41, JNE,    RRP,  "Branch on nonequal"                    ;
42, JLT,    RRP,  "Branch on lesser-than (signed)"        ;
43, JGT,    RRP,  "Branch on greater-than (signed)"       ;
44, JLTU,   RRP,  "Branch on lesser-than (unsigned)"      ;
45, JGTU,   RRP,  "Branch on greater-than (unsigned)"     ;
46, ECA,    N,    "Environment call trap"                 ;
47, EBP,    N,    "Environment breakpoint"                ;

48, ADDF,   RRR,  "Floating addition"                     ;
49, SUBF,   RRR,  "Floating subtraction"                  ;
50, MULF,   RRR,  "Floating multiply"                     ;
51, DIRF,   RRRR, "Merged floating divide-remainder"      ;
52, FMAF,   RRRR, "Fused floating multiply-add"           ;
53, NEGF,   RR,   "Floating sign negation"                ;
54, ITF,    RR,   "Int to float"                          ;
55, FTI,    RR,   "Float to int"                          ;

56, ADDFI,  RRD,  "Floating addition with immediate"      ;
57, MULFI,  RRD,  "Floating multiplication with immediate";

58, LRA16 , RRP,  "Load relative immediate (16 bit)"      ;
59, LDR16 , RRPH, "Load from relative address (16 bit)"   ;
60, STR16 , RRPH, "Store to relative address (16 bit)"    ;
61, JMPR16, P,    "Relative jump (16 bit)"                ;