sh4-dis.c

qemu虚拟机代码

#define SH_MERGE_ARCH_SET_VALID(SET1, SET2) \
  SH_VALID_ARCH_SET (SH_MERGE_ARCH_SET (SET1, SET2))

#define SH_ARCH_SET_HAS_FPU(SET) \
  (((SET) & (arch_sh_sp_fpu | arch_sh_dp_fpu)) != 0)
#define SH_ARCH_SET_HAS_DSP(SET) \
  (((SET) & arch_sh_has_dsp) != 0)

/* This is returned from the functions below when an error occurs
   (in addition to a call to BFD_FAIL). The value should allow
   the tools to continue to function in most cases - there may
   be some confusion between DSP and FPU etc.  */
#define SH_ARCH_UNKNOWN_ARCH 0xffffffff

/* These are defined in bfd/cpu-sh.c .  */
unsigned int sh_get_arch_from_bfd_mach (unsigned long mach);
unsigned int sh_get_arch_up_from_bfd_mach (unsigned long mach);
unsigned long sh_get_bfd_mach_from_arch_set (unsigned int arch_set);
/* bfd_boolean sh_merge_bfd_arch (bfd *ibfd, bfd *obfd); */

/* Below are the 'architecture sets'.
   They describe the following inheritance graph:

                SH1
                 |
                SH2
   .------------'|`--------------------.
  /              |                      \
SH-DSP          SH3-nommu               SH2E
 |               |`--------.             |
 |               |          \            |
 |              SH3     SH4-nommu-nofpu  |
 |               |           |           |
 | .------------'|`----------+---------. |
 |/                         /           \|
 |               | .-------'             |
 |               |/                      |
SH3-dsp         SH4-nofpu               SH3E
 |               |`--------------------. |
 |               |                      \|
 |              SH4A-nofpu              SH4
 | .------------' `--------------------. |
 |/                                     \|
SH4AL-dsp                               SH4A

*/

/* Central branches */
#define arch_sh1_up       (arch_sh1 | arch_sh2_up)
#define arch_sh2_up       (arch_sh2 | arch_sh2e_up | arch_sh2a_nofpu_up | arch_sh3_nommu_up | arch_sh_dsp_up)
#define arch_sh3_nommu_up (arch_sh3_nommu | arch_sh3_up | arch_sh4_nommu_nofpu_up)
#define arch_sh3_up       (arch_sh3 | arch_sh3e_up | arch_sh3_dsp_up | arch_sh4_nofp_up)
#define arch_sh4_nommu_nofpu_up (arch_sh4_nommu_nofpu | arch_sh4_nofp_up)
#define arch_sh4_nofp_up  (arch_sh4_nofpu | arch_sh4_up | arch_sh4a_nofp_up)
#define arch_sh4a_nofp_up (arch_sh4a_nofpu | arch_sh4a_up | arch_sh4al_dsp_up)

/* Right branch */
#define arch_sh2e_up (arch_sh2e | arch_sh2a_up | arch_sh3e_up)
#define arch_sh3e_up (arch_sh3e | arch_sh4_up)
#define arch_sh4_up  (arch_sh4 | arch_sh4a_up)
#define arch_sh4a_up (arch_sh4a)

/* Left branch */
#define arch_sh_dsp_up    (arch_sh_dsp | arch_sh3_dsp_up)
#define arch_sh3_dsp_up   (arch_sh3_dsp | arch_sh4al_dsp_up)
#define arch_sh4al_dsp_up (arch_sh4al_dsp)

/* SH 2a branched off SH2e, adding a lot but not all of SH4 and SH4a.  */
#define arch_sh2a_up        (arch_sh2a)
#define arch_sh2a_nofpu_up  (arch_sh2a_nofpu | arch_sh2a_up)


typedef struct
{
  char *name;
  sh_arg_type arg[4];
  sh_nibble_type nibbles[9];
  unsigned int arch;
} sh_opcode_info;

#ifdef DEFINE_TABLE

const sh_opcode_info sh_table[] =
  {
/* 0111nnnni8*1.... add #<imm>,<REG_N>  */{"add",{A_IMM,A_REG_N},{HEX_7,REG_N,IMM0_8}, arch_sh1_up},

/* 0011nnnnmmmm1100 add <REG_M>,<REG_N> */{"add",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_C}, arch_sh1_up},

/* 0011nnnnmmmm1110 addc <REG_M>,<REG_N>*/{"addc",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_E}, arch_sh1_up},

/* 0011nnnnmmmm1111 addv <REG_M>,<REG_N>*/{"addv",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_F}, arch_sh1_up},

/* 11001001i8*1.... and #<imm>,R0       */{"and",{A_IMM,A_R0},{HEX_C,HEX_9,IMM0_8}, arch_sh1_up},

/* 0010nnnnmmmm1001 and <REG_M>,<REG_N> */{"and",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_9}, arch_sh1_up},

/* 11001101i8*1.... and.b #<imm>,@(R0,GBR)*/{"and.b",{A_IMM,A_R0_GBR},{HEX_C,HEX_D,IMM0_8}, arch_sh1_up},

/* 1010i12......... bra <bdisp12>       */{"bra",{A_BDISP12},{HEX_A,BRANCH_12}, arch_sh1_up},

/* 1011i12......... bsr <bdisp12>       */{"bsr",{A_BDISP12},{HEX_B,BRANCH_12}, arch_sh1_up},

/* 10001001i8p1.... bt <bdisp8>         */{"bt",{A_BDISP8},{HEX_8,HEX_9,BRANCH_8}, arch_sh1_up},

/* 10001011i8p1.... bf <bdisp8>         */{"bf",{A_BDISP8},{HEX_8,HEX_B,BRANCH_8}, arch_sh1_up},

/* 10001101i8p1.... bt.s <bdisp8>       */{"bt.s",{A_BDISP8},{HEX_8,HEX_D,BRANCH_8}, arch_sh2_up},

/* 10001101i8p1.... bt/s <bdisp8>       */{"bt/s",{A_BDISP8},{HEX_8,HEX_D,BRANCH_8}, arch_sh2_up},

/* 10001111i8p1.... bf.s <bdisp8>       */{"bf.s",{A_BDISP8},{HEX_8,HEX_F,BRANCH_8}, arch_sh2_up},

/* 10001111i8p1.... bf/s <bdisp8>       */{"bf/s",{A_BDISP8},{HEX_8,HEX_F,BRANCH_8}, arch_sh2_up},

/* 0000000010001000 clrdmxy             */{"clrdmxy",{0},{HEX_0,HEX_0,HEX_8,HEX_8}, arch_sh4al_dsp_up},

/* 0000000000101000 clrmac              */{"clrmac",{0},{HEX_0,HEX_0,HEX_2,HEX_8}, arch_sh1_up},

/* 0000000001001000 clrs                */{"clrs",{0},{HEX_0,HEX_0,HEX_4,HEX_8}, arch_sh1_up},

/* 0000000000001000 clrt                */{"clrt",{0},{HEX_0,HEX_0,HEX_0,HEX_8}, arch_sh1_up},

/* 10001000i8*1.... cmp/eq #<imm>,R0    */{"cmp/eq",{A_IMM,A_R0},{HEX_8,HEX_8,IMM0_8}, arch_sh1_up},

/* 0011nnnnmmmm0000 cmp/eq <REG_M>,<REG_N>*/{"cmp/eq",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_0}, arch_sh1_up},

/* 0011nnnnmmmm0011 cmp/ge <REG_M>,<REG_N>*/{"cmp/ge",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_3}, arch_sh1_up},

/* 0011nnnnmmmm0111 cmp/gt <REG_M>,<REG_N>*/{"cmp/gt",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_7}, arch_sh1_up},

/* 0011nnnnmmmm0110 cmp/hi <REG_M>,<REG_N>*/{"cmp/hi",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_6}, arch_sh1_up},

/* 0011nnnnmmmm0010 cmp/hs <REG_M>,<REG_N>*/{"cmp/hs",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_2}, arch_sh1_up},

/* 0100nnnn00010101 cmp/pl <REG_N>      */{"cmp/pl",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_5}, arch_sh1_up},

/* 0100nnnn00010001 cmp/pz <REG_N>      */{"cmp/pz",{A_REG_N},{HEX_4,REG_N,HEX_1,HEX_1}, arch_sh1_up},

/* 0010nnnnmmmm1100 cmp/str <REG_M>,<REG_N>*/{"cmp/str",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_C}, arch_sh1_up},

/* 0010nnnnmmmm0111 div0s <REG_M>,<REG_N>*/{"div0s",{ A_REG_M,A_REG_N},{HEX_2,REG_N,REG_M,HEX_7}, arch_sh1_up},

/* 0000000000011001 div0u               */{"div0u",{0},{HEX_0,HEX_0,HEX_1,HEX_9}, arch_sh1_up},

/* 0011nnnnmmmm0100 div1 <REG_M>,<REG_N>*/{"div1",{ A_REG_M,A_REG_N},{HEX_3,REG_N,REG_M,HEX_4}, arch_sh1_up},

/* 0110nnnnmmmm1110 exts.b <REG_M>,<REG_N>*/{"exts.b",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_E}, arch_sh1_up},

/* 0110nnnnmmmm1111 exts.w <REG_M>,<REG_N>*/{"exts.w",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_F}, arch_sh1_up},

/* 0110nnnnmmmm1100 extu.b <REG_M>,<REG_N>*/{"extu.b",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_C}, arch_sh1_up},

/* 0110nnnnmmmm1101 extu.w <REG_M>,<REG_N>*/{"extu.w",{ A_REG_M,A_REG_N},{HEX_6,REG_N,REG_M,HEX_D}, arch_sh1_up},

/* 0000nnnn11100011 icbi @<REG_N>       */{"icbi",{A_IND_N},{HEX_0,REG_N,HEX_E,HEX_3}, arch_sh4a_nofp_up},

/* 0100nnnn00101011 jmp @<REG_N>        */{"jmp",{A_IND_N},{HEX_4,REG_N,HEX_2,HEX_B}, arch_sh1_up},

/* 0100nnnn00001011 jsr @<REG_N>        */{"jsr",{A_IND_N},{HEX_4,REG_N,HEX_0,HEX_B}, arch_sh1_up},

/* 0100nnnn00001110 ldc <REG_N>,SR      */{"ldc",{A_REG_N,A_SR},{HEX_4,REG_N,HEX_0,HEX_E}, arch_sh1_up},

/* 0100nnnn00011110 ldc <REG_N>,GBR     */{"ldc",{A_REG_N,A_GBR},{HEX_4,REG_N,HEX_1,HEX_E}, arch_sh1_up},

/* 0100nnnn00111010 ldc <REG_N>,SGR     */{"ldc",{A_REG_N,A_SGR},{HEX_4,REG_N,HEX_3,HEX_A}, arch_sh4_nommu_nofpu_up},

/* 0100mmmm01001010 ldc <REG_M>,TBR     */{"ldc",{A_REG_M,A_TBR},{HEX_4,REG_M,HEX_4,HEX_A}, arch_sh2a_nofpu_up},

/* 0100nnnn00101110 ldc <REG_N>,VBR     */{"ldc",{A_REG_N,A_VBR},{HEX_4,REG_N,HEX_2,HEX_E}, arch_sh1_up},

/* 0100nnnn01011110 ldc <REG_N>,MOD     */{"ldc",{A_REG_N,A_MOD},{HEX_4,REG_N,HEX_5,HEX_E}, arch_sh_dsp_up},

/* 0100nnnn01111110 ldc <REG_N>,RE     */{"ldc",{A_REG_N,A_RE},{HEX_4,REG_N,HEX_7,HEX_E}, arch_sh_dsp_up},

/* 0100nnnn01101110 ldc <REG_N>,RS     */{"ldc",{A_REG_N,A_RS},{HEX_4,REG_N,HEX_6,HEX_E}, arch_sh_dsp_up},

/* 0100nnnn00111110 ldc <REG_N>,SSR     */{"ldc",{A_REG_N,A_SSR},{HEX_4,REG_N,HEX_3,HEX_E}, arch_sh3_nommu_up},

/* 0100nnnn01001110 ldc <REG_N>,SPC     */{"ldc",{A_REG_N,A_SPC},{HEX_4,REG_N,HEX_4,HEX_E}, arch_sh3_nommu_up},

/* 0100nnnn11111010 ldc <REG_N>,DBR     */{"ldc",{A_REG_N,A_DBR},{HEX_4,REG_N,HEX_F,HEX_A}, arch_sh4_nommu_nofpu_up},

/* 0100nnnn1xxx1110 ldc <REG_N>,Rn_BANK */{"ldc",{A_REG_N,A_REG_B},{HEX_4,REG_N,REG_B,HEX_E}, arch_sh3_nommu_up},

/* 0100nnnn00000111 ldc.l @<REG_N>+,SR  */{"ldc.l",{A_INC_N,A_SR},{HEX_4,REG_N,HEX_0,HEX_7}, arch_sh1_up},

/* 0100nnnn00010111 ldc.l @<REG_N>+,GBR */{"ldc.l",{A_INC_N,A_GBR},{HEX_4,REG_N,HEX_1,HEX_7}, arch_sh1_up},

/* 0100nnnn00100111 ldc.l @<REG_N>+,VBR */{"ldc.l",{A_INC_N,A_VBR},{HEX_4,REG_N,HEX_2,HEX_7}, arch_sh1_up},

/* 0100nnnn00110110 ldc.l @<REG_N>+,SGR */{"ldc.l",{A_INC_N,A_SGR},{HEX_4,REG_N,HEX_3,HEX_6}, arch_sh4_nommu_nofpu_up},

/* 0100nnnn01010111 ldc.l @<REG_N>+,MOD */{"ldc.l",{A_INC_N,A_MOD},{HEX_4,REG_N,HEX_5,HEX_7}, arch_sh_dsp_up},

/* 0100nnnn01110111 ldc.l @<REG_N>+,RE */{"ldc.l",{A_INC_N,A_RE},{HEX_4,REG_N,HEX_7,HEX_7}, arch_sh_dsp_up},

/* 0100nnnn01100111 ldc.l @<REG_N>+,RS */{"ldc.l",{A_INC_N,A_RS},{HEX_4,REG_N,HEX_6,HEX_7}, arch_sh_dsp_up},

/* 0100nnnn00110111 ldc.l @<REG_N>+,SSR */{"ldc.l",{A_INC_N,A_SSR},{HEX_4,REG_N,HEX_3,HEX_7}, arch_sh3_nommu_up},

/* 0100nnnn01000111 ldc.l @<REG_N>+,SPC */{"ldc.l",{A_INC_N,A_SPC},{HEX_4,REG_N,HEX_4,HEX_7}, arch_sh3_nommu_up},

/* 0100nnnn11110110 ldc.l @<REG_N>+,DBR */{"ldc.l",{A_INC_N,A_DBR},{HEX_4,REG_N,HEX_F,HEX_6}, arch_sh4_nommu_nofpu_up},

/* 0100nnnn1xxx0111 ldc.l <REG_N>,Rn_BANK */{"ldc.l",{A_INC_N,A_REG_B},{HEX_4,REG_N,REG_B,HEX_7}, arch_sh3_nommu_up},

/* 0100mmmm00110100 ldrc <REG_M>        */{"ldrc",{A_REG_M},{HEX_4,REG_M,HEX_3,HEX_4}, arch_sh4al_dsp_up},
/* 10001010i8*1.... ldrc #<imm>         */{"ldrc",{A_IMM},{HEX_8,HEX_A,IMM0_8}, arch_sh4al_dsp_up},

/* 10001110i8p2.... ldre @(<disp>,PC)	*/{"ldre",{A_DISP_PC},{HEX_8,HEX_E,PCRELIMM_8BY2}, arch_sh_dsp_up},

/* 10001100i8p2.... ldrs @(<disp>,PC)	*/{"ldrs",{A_DISP_PC},{HEX_8,HEX_C,PCRELIMM_8BY2}, arch_sh_dsp_up},

/* 0100nnnn00001010 lds <REG_N>,MACH    */{"lds",{A_REG_N,A_MACH},{HEX_4,REG_N,HEX_0,HEX_A}, arch_sh1_up},

/* 0100nnnn00011010 lds <REG_N>,MACL    */{"lds",{A_REG_N,A_MACL},{HEX_4,REG_N,HEX_1,HEX_A}, arch_sh1_up},

/* 0100nnnn00101010 lds <REG_N>,PR      */{"lds",{A_REG_N,A_PR},{HEX_4,REG_N,HEX_2,HEX_A}, arch_sh1_up},

/* 0100nnnn01101010 lds <REG_N>,DSR	*/{"lds",{A_REG_N,A_DSR},{HEX_4,REG_N,HEX_6,HEX_A}, arch_sh_dsp_up},

/* 0100nnnn01111010 lds <REG_N>,A0	*/{"lds",{A_REG_N,A_A0},{HEX_4,REG_N,HEX_7,HEX_A}, arch_sh_dsp_up},

/* 0100nnnn10001010 lds <REG_N>,X0	*/{"lds",{A_REG_N,A_X0},{HEX_4,REG_N,HEX_8,HEX_A}, arch_sh_dsp_up},

/* 0100nnnn10011010 lds <REG_N>,X1	*/{"lds",{A_REG_N,A_X1},{HEX_4,REG_N,HEX_9,HEX_A}, arch_sh_dsp_up},

/* 0100nnnn10101010 lds <REG_N>,Y0	*/{"lds",{A_REG_N,A_Y0},{HEX_4,REG_N,HEX_A,HEX_A}, arch_sh_dsp_up},

/* 0100nnnn10111010 lds <REG_N>,Y1	*/{"lds",{A_REG_N,A_Y1},{HEX_4,REG_N,HEX_B,HEX_A}, arch_sh_dsp_up},

/* 0100nnnn01011010 lds <REG_N>,FPUL    */{"lds",{A_REG_M,FPUL_N},{HEX_4,REG_M,HEX_5,HEX_A}, arch_sh2e_up},
  
/* 0100nnnn01101010 lds <REG_M>,FPSCR   */{"lds",{A_REG_M,FPSCR_N},{HEX_4,REG_M,HEX_6,HEX_A}, arch_sh2e_up},

/* 0100nnnn00000110 lds.l @<REG_N>+,MACH*/{"lds.l",{A_INC_N,A_MACH},{HEX_4,REG_N,HEX_0,HEX_6}, arch_sh1_up},

/* 0100nnnn00010110 lds.l @<REG_N>+,MACL*/{"lds.l",{A_INC_N,A_MACL},{HEX_4,REG_N,HEX_1,HEX_6}, arch_sh1_up},

/* 0100nnnn00100110 lds.l @<REG_N>+,PR  */{"lds.l",{A_INC_N,A_PR},{HEX_4,REG_N,HEX_2,HEX_6}, arch_sh1_up},

/* 0100nnnn01100110 lds.l @<REG_N>+,DSR	*/{"lds.l",{A_INC_N,A_DSR},{HEX_4,REG_N,HEX_6,HEX_6}, arch_sh_dsp_up},

/* 0100nnnn01110110 lds.l @<REG_N>+,A0	*/{"lds.l",{A_INC_N,A_A0},{HEX_4,REG_N,HEX_7,HEX_6}, arch_sh_dsp_up},

/* 0100nnnn10000110 lds.l @<REG_N>+,X0	*/{"lds.l",{A_INC_N,A_X0},{HEX_4,REG_N,HEX_8,HEX_6}, arch_sh_dsp_up},

/* 0100nnnn10010110 lds.l @<REG_N>+,X1	*/{"lds.l",{A_INC_N,A_X1},{HEX_4,REG_N,HEX_9,HEX_6}, arch_sh_dsp_up},

/* 0100nnnn10100110 lds.l @<REG_N>+,Y0	*/{"lds.l",{A_INC_N,A_Y0},{HEX_4,REG_N,HEX_A,HEX_6}, arch_sh_dsp_up},

/* 0100nnnn10110110 lds.l @<REG_N>+,Y1	*/{"lds.l",{A_INC_N,A_Y1},{HEX_4,REG_N,HEX_B,HEX_6}, arch_sh_dsp_up},