table.c

早期freebsd实现

int	subf();
int	tst();
int	xor2();
int	xor3();
int	not_needed();


/**************************************************/
/*  The great opcodes table, it drives everything */
/**************************************************/

struct	opcode_des	Table[]= {

/* 00 */ halt      ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 01 */ halt      ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 02 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 03 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 04 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 05 */ sinf      ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 06 */ ldf       ,RADF,   4,   0,   0,   0,   0,   0,   0,
/* 07 */ ldd       ,RADF,   8,   0,   0,   0,   0,   0,   0,
/* 08 */ addb2     ,RADI,   1, MAD,   1,   0,   0,   0,   0,
/* 09 */ movb      ,RADI,   1,NWAD,   1,   0,   0,   0,   0,
/* 0A */ addw2     ,RADI,   2, MAD,   2,   0,   0,   0,   0,
/* 0B */ movw      ,RADI,   2,NWAD,   2,   0,   0,   0,   0,
/* 0C */ addl2     ,RADI,   4, MAD,   4,   0,   0,   0,   0,
/* 0D */ movl      ,RADI,   4,NWAD,   4,   0,   0,   0,   0,
/* 0E */ bbs       ,RADI,   4, RAD,   4, Brd,   2,   0,   0,
/* 0F */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 10 */ nop       ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 11 */ brb       , Brd,   1,   0,   0,   0,   0,   0,   0,
/* 12 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 13 */ brw       , Brd,   2,   0,   0,   0,   0,   0,   0,
/* 14 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 15 */ cosf      ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 16 */ lnf       ,RADF,   4,   0,   0,   0,   0,   0,   0,
/* 17 */ lnd       ,RADF,   8,   0,   0,   0,   0,   0,   0,
/* 18 */ addb3     ,RADI,   1,RADI,   1, WAD,   1,   0,   0,
/* 19 */ cmpb      ,RADI,   1,RADI,   1,   0,   0,   0,   0,
/* 1A */ addw3     ,RADI,   2,RADI,   2, WAD,   2,   0,   0,
/* 1B */ cmpw      ,RADI,   2,RADI,   2,   0,   0,   0,   0,
/* 1C */ addl3     ,RADI,   4,RADI,   4, WAD,   4,   0,   0,
/* 1D */ cmpl      ,RADI,   4,RADI,   4,   0,   0,   0,   0,
/* 1E */ bbc       ,RADI,   4, RAD,   4, Brd,   2,   0,   0,
/* 1F */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 20 */ rei       ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 21 */ bnequ     , Brd,   1,   0,   0,   0,   0,   0,   0,
/* 22 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 23 */ cvtwl     ,RADI,   2, WAD,   4,   0,   0,   0,   0,
/* 24 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 25 */ atanf     ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 26 */ stf       , WAD,   4,   0,   0,   0,   0,   0,   0,
/* 27 */ std       , WAD,   8,   0,   0,   0,   0,   0,   0,
/* 28 */ subb2     ,RADI,   1, MAD,   1,   0,   0,   0,   0,
/* 29 */ mcomb     ,RADI,   1,NWAD,   1,   0,   0,   0,   0,
/* 2A */ subw2     ,RADI,   2, MAD,   2,   0,   0,   0,   0,
/* 2B */ mcomw     ,RADI,   2,NWAD,   2,   0,   0,   0,   0,
/* 2C */ subl2     ,RADI,   4, MAD,   4,   0,   0,   0,   0,
/* 2D */ mcoml     ,RADI,   4, WAD,   4,   0,   0,   0,   0,
/* 2E */ emul      ,RADI,   4,RADI,   4,RADI,   4, WAD,   8,
/* 2F */ aoblss    ,RADI,   4, MAD,   4, Brd,   2,   0,   0,
/* 30 */ bpt       ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 31 */ beql      , Brd,   1,   0,   0,   0,   0,   0,   0,
/* 32 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 33 */ cvtwb     ,RADI,   2, WAD,   1,   0,   0,   0,   0,
/* 34 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 35 */ logf      ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 36 */ cmpf      ,RADF,   4,   0,   0,   0,   0,   0,   0,
/* 37 */ cmpd      ,RADF,   8,   0,   0,   0,   0,   0,   0,
/* 38 */ subb3     ,RADI,   1,RADI,   1, WAD,   1,   0,   0,
/* 39 */ bitb      ,RADI,   1,RADI,   1,   0,   0,   0,   0,
/* 3A */ subw3     ,RADI,   2,RADI,   2, WAD,   2,   0,   0,
/* 3B */ bitw      ,RADI,   2,RADI,   2,   0,   0,   0,   0,
/* 3C */ subl3     ,RADI,   4,RADI,   4, WAD,   4,   0,   0,
/* 3D */ bitl      ,RADI,   4,RADI,   4,   0,   0,   0,   0,
/* 3E */ ediv      ,RADI,   4,RADI,   8, WAD,   4,  WD,   4,
/* 3F */ aobleq    ,RADI,   4, MAD,   4, Brd,   2,   0,   0,
/* 40 */ ret       ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 41 */ bgtr      , Brd,   1,   0,   0,   0,   0,   0,   0,
/* 42 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 43 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 44 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 45 */ sqrtf     ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 46 */ cmpf2     ,RADF,   4,RADF,   4,   0,   0,   0,   0,
/* 47 */ cmpd2     ,RADF,   8,RADF,   8,   0,   0,   0,   0,
/* 48 */ shll      ,RADI,   1,RADI,   4, WAD,   4,   0,   0,
/* 49 */ clrb      , WAD,   1,   0,   0,   0,   0,   0,   0,
/* 4A */ shlq      ,RADI,   1,RADI,   8, WAD,   8,   0,   0,
/* 4B */ clrw      , WAD,   2,   0,   0,   0,   0,   0,   0,
/* 4C */ mull2     ,RADI,   4, MAD,   4,   0,   0,   0,   0, 
/* 4D */ clrl      , WAD,   4,   0,   0,   0,   0,   0,   0,
/* 4E */ shal      ,RADI,   1,RADI,   4, WAD,   4,   0,   0,
/* 4F */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 50 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 51 */ bleq      , Brd,   1,   0,   0,   0,   0,   0,   0,
/* 52 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 53 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 54 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 55 */ expf      ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 56 */ tstf      ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 57 */ tstd      ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 58 */ shrl      ,RADI,   1,RADI,   4, WAD,   4,   0,   0,
/* 59 */ tstb      ,RADI,   1,   0,   0,   0,   0,   0,   0,
/* 5A */ shrq      ,RADI,   1,RADI,   8, WAD,   8,   0,   0,
/* 5B */ tstw      ,RADI,   2,   0,   0,   0,   0,   0,   0,
/* 5C */ mull3     ,RADI,   4,RADI,   4, WAD,   4,   0,   0,
/* 5D */ tstl      ,RADI,   4,   0,   0,   0,   0,   0,   0,
/* 5E */ shar      ,RADI,   1,RADI,   4, WAD,   4,   0,   0,
/* 5F */ bbssi     ,RADI,   4, MAD,   4, Brd,   2,   0,   0,
/* 60 */ ldpctx    ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 61 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 62 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 63 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 64 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 65 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 66 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 67 */ pushd     ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 68 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 69 */ incb      , MAD,   1,   0,   0,   0,   0,   0,   0,
/* 6A */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 6B */ incw      , MAD,   2,   0,   0,   0,   0,   0,   0,
/* 6C */ divl2     ,RADI,   4, MAD,   4,   0,   0,   0,   0,
/* 6D */ incl      , MAD,   4,   0,   0,   0,   0,   0,   0,
/* 6E */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 6F */ cvtlb     ,RADI,   4, WAD,   1,   0,   0,   0,   0,
/* 70 */ svpctx    ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 71 */ jmp       ,ADDR,   1,   0,   0,   0,   0,   0,   0,
/* 72 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 73 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 74 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 75 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 76 */ cvlf      , RAD,   4,   0,   0,   0,   0,   0,   0,
/* 77 */ cvld      , RAD,   4,   0,   0,   0,   0,   0,   0,
/* 78 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 79 */ decb      , MAD,   1,   0,   0,   0,   0,   0,   0,
/* 7A */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 7B */ decw      , MAD,   2,   0,   0,   0,   0,   0,   0,
/* 7C */ divl3     ,RADI,   4,RADI,   4, WAD,   4,   0,   0,
/* 7D */ decl      , MAD,   4,   0,   0,   0,   0,   0,   0,
/* 7E */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 7F */ cvtlw     ,RADI,   4, WAD,   2,   0,   0,   0,   0,
/* 80 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 81 */ bgeq      , Brd,   1,   0,   0,   0,   0,   0,   0,
/* 82 */ movs2     ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 83 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 84 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 85 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 86 */ cvfl      , WAD,   4,   0,   0,   0,   0,   0,   0,
/* 87 */ cvdl      , WAD,   4,   0,   0,   0,   0,   0,   0,
/* 88 */ orb2      ,RADI,   1,NMAD,   1,   0,   0,   0,   0, 
/* 89 */ cvtbl     ,RADI,   1, WAD,   4,   0,   0,   0,   0,
/* 8A */ orw2      ,RADI,   2,NMAD,   2,   0,   0,   0,   0,
/* 8B */ bispsw    ,RADI,   2,   0,   0,   0,   0,   0,   0,
/* 8C */ orl2      ,RADI,   4, MAD,   4,   0,   0,   0,   0,
/* 8D */ adwc      ,RADI,   4, MAD,   4,   0,   0,   0,   0,
/* 8E */ adda      ,RADI,   4, MAD,   4,   0,   0,   0,   0,
/* 8F */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 90 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 91 */ blss      , Brd,   1,   0,   0,   0,   0,   0,   0,
/* 92 */ cmps2     ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 93 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 94 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 95 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 96 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* 97 */ ldfd      ,RADF,   4,   0,   0,   0,   0,   0,   0,
/* 98 */ orb3      ,RADI,   1,RADI,   1,NWAD,   1,   0,   0,
/* 99 */ cvtbw     ,RADI,   1, WAD,   2,   0,   0,   0,   0,
/* 9A */ orw3      ,RADI,   2,RADI,   2,NWAD,   2,   0,   0,
/* 9B */ bicpsw    ,RADI,   2,   0,   0,   0,   0,   0,   0,
/* 9C */ orl3      ,RADI,   4,RADI,   4, WAD,   4,   0,   0,
/* 9D */ sbwc      ,RADI,   4, MAD,   4,   0,   0,   0,   0,
/* 9E */ suba      ,RADI,   4, MAD,   4,   0,   0,   0,   0,
/* 9F */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* A0 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* A1 */ bgtru     , Brd,   1,   0,   0,   0,   0,   0,   0,
/* A2 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* A3 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* A4 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* A5 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* A6 */ cvdf      ,   0,   0,   0,   0,   0,   0,   0,   0,
/* A7 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* A8 */ andb2     ,RADI,   1,NMAD,   1,   0,   0,   0,   0,
/* A9 */ movzbl    ,RADI,   1, WAD,   4,   0,   0,   0,   0,
/* AA */ andw2     ,RADI,   2,NMAD,   2,   0,   0,   0,   0,
/* AB */ loadr     ,RADI,   2,ADDR,   4,   0,   0,   0,   0,
/* AC */ andl2     ,RADI,   4, MAD,   4,   0,   0,   0,   0,
/* AD */ mtpr      ,RADI,   4,RADI,   4,   0,   0,   0,   0,
/* AE */ ffs       ,RADI,   4, WAD,   4,   0,   0,   0,   0,
/* AF */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* B0 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* B1 */ blequ     , Brd,   1,   0,   0,   0,   0,   0,   0,
/* B2 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* B3 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* B4 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* B5 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* B6 */ negf      ,   0,   0,   0,   0,   0,   0,   0,   0,
/* B7 */ negd      ,   0,   0,   0,   0,   0,   0,   0,   0,
/* B8 */ andb3     ,RADI,   1,RADI,   1,NWAD,   1,   0,   0,
/* B9 */ movzbw    ,RADI,   1, WAD,   2,   0,   0,   0,   0,
/* BA */ andw3     ,RADI,   2,RADI,   2,NWAD,   2,   0,   0,
/* BB */ storer    ,RADI,   2,W|ADDR, 4,   0,   0,   0,   0,
/* BC */ andl3     ,RADI,   4,RADI,   4, WAD,   4,   0,   0,
/* BD */ mfpr      ,RADI,   4, WAD,   4,   0,   0,   0,   0,
/* BE */ ffc       ,RADI,   4, WAD,   4,   0,   0,   0,   0,
/* BF */ calls     ,RADI,   1,ADDR,   1,   0,   0,   0,   0,
/* C0 */ prober    ,RADI,   1,ADDR,   1,RADI,   4,   0,   0,
/* C1 */ bvc       , Brd,   1,   0,   0,   0,   0,   0,   0,
/* C2 */ movs3     ,   0,   0,   0,   0,   0,   0,   0,   0,
/* C3 */ movzwl    ,RADI,   2, WAD,   4,   0,   0,   0,   0,
/* C4 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* C5 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* C6 */ addf      ,RADF,   4,   0,   0,   0,   0,   0,   0,
/* C7 */ addd      ,RADF,   8,   0,   0,   0,   0,   0,   0,
/* C8 */ xorb2     ,RADI,   1,NMAD,   1,   0,   0,   0,   0,
/* C9 */ movob     ,RADI,   1,NWAD,   1,   0,   0,   0,   0,
/* CA */ xorw2     ,RADI,   2,NMAD,   2,   0,   0,   0,   0,
/* CB */ movow     ,RADI,   2,NWAD,   2,   0,   0,   0,   0,
/* CC */ xorl2     ,RADI,   4, MAD,   4,   0,   0,   0,   0,
/* CD */ movpsl    , WAD,   4,   0,   0,   0,   0,   0,   0,
/* CE */ btcs      ,RADI,   1,   0,   0,   0,   0,   0,   0,
/* CF */ kcall     ,RADI,   2,   0,   0,   0,   0,   0,   0,
/* D0 */ probew    ,RADI,   1,ADDR,   1,RADI,   4,   0,   0,
/* D1 */ bvs       , Brd,   1,   0,   0,   0,   0,   0,   0,
/* D2 */ cmps3     ,   0,   0,   0,   0,   0,   0,   0,   0,
/* D3 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* D4 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* D5 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* D6 */ subf      ,RADF,   4,   0,   0,   0,   0,   0,   0,
/* D7 */ subd      ,RADF,   8,   0,   0,   0,   0,   0,   0,
/* D8 */ xorb3     ,RADI,   1,RADI,   1,NWAD,   1,   0,   0,
/* D9 */ pushb     ,RADI,   1,   0,   0,   0,   0,   0,   0,
/* DA */ xorw3     ,RADI,   2,RADI,   2,NWAD,   2,   0,   0,
/* DB */ pushw     ,RADI,   2,   0,   0,   0,   0,   0,   0,
/* DC */ xorl3     ,RADI,   4,RADI,   4, WAD,   4,   0,   0,
/* DD */ pushl     ,RADI,   4,   0,   0,   0,   0,   0,   0,
/* DE */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* DF */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* E0 */ insque    ,ADDR,   4,ADDR,   4,   0,   0,   0,   0,
/* E1 */ bcs       , Brd,   1,   0,   0,   0,   0,   0,   0,
/* E2 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* E3 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* E4 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* E5 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* E6 */ mulf      ,RADF,   4,   0,   0,   0,   0,   0,   0,
/* E7 */ muld      ,RADF,   8,   0,   0,   0,   0,   0,   0,
/* E8 */ mnegb     ,RADI,   1, WAD,   1,   0,   0,   0,   0,
/* E9 */ movab     ,ADDR,   1, WAD,   4,   0,   0,   0,   0,
/* EA */ mnegw     ,RADI,   2, WAD,   2,   0,   0,   0,   0,
/* EB */ movaw     ,ADDR,   2, WAD,   4,   0,   0,   0,   0,
/* EC */ mnegl     ,RADI,   4, WAD,   4,   0,   0,   0,   0,
/* ED */ moval     ,ADDR,   4, WAD,   4,   0,   0,   0,   0,
/* EE */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* EF */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* F0 */ remque    ,ADDR,   4,   0,   0,   0,   0,   0,   0,
/* F1 */ bcc       , Brd,   1,   0,   0,   0,   0,   0,   0,
/* F2 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* F3 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* F4 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* F5 */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* F6 */ divf      ,RADF,   4,   0,   0,   0,   0,   0,   0,
/* F7 */ divd      ,RADF,   8,   0,   0,   0,   0,   0,   0,
/* F8 */ movblk    ,   0,   0,   0,   0,   0,   0,   0,   0,
/* F9 */ pushab    ,ADDR,   1,   0,   0,   0,   0,   0,   0,
/* FA */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0,
/* FB */ pushaw    ,ADDR,   2,   0,   0,   0,   0,   0,   0,
/* FC */ casel     ,RADI,   4,RADI,   4,RADI,   4,   0,   0,
/* FD */ pushal    ,ADDR,   4,   0,   0,   0,   0,   0,   0,
/* FE */ callf    ,Imm|Lit, 1,  PR,   1,   0,   0,   0,   0,
/* FF */ illegal   ,   0,   0,   0,   0,   0,   0,   0,   0
};