/* * sh2d * Bart Trzynadlowski, July 24, 2000 * Public domain * * Some changes by Björn Stenberg * $Id: sh2d.c,v 1.2 2002/03/28 14:42:40 zagor Exp $ */ #include #include #include #define VERSION "0.2" #define ZERO_F 0 /* 0 format */ #define N_F 1 /* n format */ #define M_F 2 /* m format */ #define NM_F 3 /* nm format */ #define MD_F 4 /* md format */ #define ND4_F 5 /* nd4 format */ #define NMD_F 6 /* nmd format */ #define D_F 7 /* d format */ #define D12_F 8 /* d12 format */ #define ND8_F 9 /* nd8 format */ #define I_F 10 /* i format */ #define NI_F 11 /* ni format */ typedef struct { int format; unsigned char *mnem; unsigned short mask; /* mask used to obtain opcode bits */ unsigned short bits; /* opcode bits */ int dat; /* specific data for situation */ int sh2; /* SH-2 specific */ } i_descr; /* register name lookup added by bjorn@haxx.se 2001-12-09 */ char* regname[] = { /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ "","","","","","","","","","","","","","","","", /* 0 */ "","","","","","","","","","","","","","","","", /* 10 */ "","","","","","","","","","","","","","","","", /* 20 */ "","","","","","","","","","","","","","","","", /* 30 */ "","","","","","","","","","","","","","","","", /* 40 */ "","","","","","","","","","","","","","","","", /* 50 */ "","","","","","","","","","","","","","","","", /* 60 */ "","","","","","","","","","","","","","","","", /* 70 */ "","","","","","","","","","","","","","","","", /* 80 */ "","","","","","","","","","","","","","","","", /* 90 */ "","","","","","","","","","","","","","","","", /* a0 */ "","","","","","","","","","","","","","","","", /* b0 */ "SMR0","BRR0","SCR0","TDR0","SSR0","RDR0","","", /* c0 */ "SMR1","BRR1","SCR1","TDR1","SSR1","RDR1","","", /* c8 */ "","","","","","","","","","","","","","","","", /* d0 */ "ADDRAH","ADDRAL","ADDRBH","ADDRBL", /* e0 */ "ADDRCH","ADDRCL","ADDRDH","ADDRDL", /* e4 */ "ADCSR","ADCR","","","","","","", /* e8 */ "","","","","","","","","","","","","","","","", /* f0 */ "TSTR","TSNC","TMDR","TFCR","TCR0","TIOR0","TIER0","TSR0", /* 100 */ "TCNT0","!","GRA0","!","GRB0","!","TCR1","TIORL", /* 108 */ "TIERI","TSR1","TCNT1","","GRA1","!","GRB1","!", /* 110 */ "TCR2","TIOR2","TIER2","TSR2","TCNT2","!","GRA2","!", /* 118 */ "GRB2","!","TCR3","TIOR3","TIER3","TSR3","TCNT3","!", /* 120 */ "GRA3","!","GRB3","!","BRA3","!","BRB3","!", /* 128 */ "","TOCR","TCR4","TIOR4","TIER4","TSR4","TCNT4","!", /* 130 */ "GRA4","!","GRB4","!","BRA4","!","BRB4","!", /* 138 */ "SAR0","!","!","!","DAR0","!","!","!", /* 140 */ "DMAOR","!","TCR0","!","","","CHCR0","!", /* 148 */ "SAR1","!","!","!","DAR1","!","!","!", /* 150 */ "","","TCR1","!","","","CHCR1","!", /* 158 */ "SAR2","!","!","!","DAR2","!","!","!", /* 160 */ "","","TCR2","!","","","CHCR2","!", /* 168 */ "SAR3","!","!","!","DAR3","!","!","!", /* 170 */ "","","TCR3","!","","","CHCR3","!", /* 178 */ "","","","","IPRA","!","IPRB","!", /* 180 */ "IPRC","!","IPRD","!","IPRE","!","ICR","!", /* 188 */ "BARH","!","BARL","!","BAMRH","!","BAMRL","!", /* 190 */ "BBR","!","","","","","","", /* 198 */ "BCR","!","WCR1","!","WCR2","!","WCR3","!", /* 1a0 */ "DCR","!","PCR","!","RCR","!","RTCSR","!", /* 1a8 */ "RTCNT","!","RTCOR","!","","","","", /* 1b0 */ "TCSR","TCNT","","RSTCSR","SBYCR","","","", /* 1b8 */ "PADR","!","PBDR","!","PAIOR","!","PBIOR","!", /* 1c0 */ "PACR1","!","PACR2","!","PBCR1","!","PBCR2","!", /* 1c8 */ "PCDR","!","","","","","","","","","","","","","", /* 1d0 */ "","","","","","","","","","","","","","","CASCR","!", /* 1e0 */ "TPMR","TPCR","NDERB","NDERA","NDRB","NDRA","NDRB","NDRA", /* 1f0 */ "","","","","","","","" }; i_descr tab[] = { { ZERO_F, "clrt", 0xffff, 0x8, 0, 0 }, { ZERO_F, "clrmac", 0xffff, 0x28, 0, 0 }, { ZERO_F, "div0u", 0xffff, 0x19, 0, 0 }, { ZERO_F, "nop", 0xffff, 0x9, 0, 0 }, { ZERO_F, "rte", 0xffff, 0x2b, 0, 0 }, { ZERO_F, "rts", 0xffff, 0xb, 0, 0 }, { ZERO_F, "sett", 0xffff, 0x18, 0, 0 }, { ZERO_F, "sleep", 0xffff, 0x1b, 0, 0 }, { N_F, "cmp/pl\tr%d", 0xf0ff, 0x4015, 0, 0 }, { N_F, "cmp/pz\tr%d", 0xf0ff, 0x4011, 0, 0 }, { N_F, "dt\tr%d", 0xf0ff, 0x4010, 0, 1 }, { N_F, "movt\tr%d", 0xf0ff, 0x0029, 0, 0 }, { N_F, "rotl\tr%d", 0xf0ff, 0x4004, 0, 0 }, { N_F, "rotr\tr%d", 0xf0ff, 0x4005, 0, 0 }, { N_F, "rotcl\tr%d", 0xf0ff, 0x4024, 0, 0 }, { N_F, "rotcr\tr%d", 0xf0ff, 0x4025, 0, 0 }, { N_F, "shal\tr%d", 0xf0ff, 0x4020, 0, 0 }, { N_F, "shar\tr%d", 0xf0ff, 0x4021, 0, 0 }, { N_F, "shll\tr%d", 0xf0ff, 0x4000, 0, 0 }, { N_F, "shlr\tr%d", 0xf0ff, 0x4001, 0, 0 }, { N_F, "shll2\tr%d", 0xf0ff, 0x4008, 0, 0 }, { N_F, "shlr2\tr%d", 0xf0ff, 0x4009, 0, 0 }, { N_F, "shll8\tr%d", 0xf0ff, 0x4018, 0, 0 }, { N_F, "shlr8\tr%d", 0xf0ff, 0x4019, 0, 0 }, { N_F, "shll16\tr%d", 0xf0ff, 0x4028, 0, 0 }, { N_F, "shlr16\tr%d", 0xf0ff, 0x4029, 0, 0 }, { N_F, "stc\tsr,r%d", 0xf0ff, 0x0002, 0, 0 }, { N_F, "stc\tgbr,r%d", 0xf0ff, 0x0012, 0, 0 }, { N_F, "stc\tvbr,r%d", 0xf0ff, 0x0022, 0, 0 }, { N_F, "sts\tmach,r%d", 0xf0ff, 0x000a, 0, 0 }, { N_F, "sts\tmacl,r%d", 0xf0ff, 0x001a, 0, 0 }, { N_F, "sts\tpr,r%d", 0xf0ff, 0x002a, 0, 0 }, { N_F, "tas.b\t@r%d", 0xf0ff, 0x401b, 0, 0 }, { N_F, "stc.l\tsr,@-r%d", 0xf0ff, 0x4003, 0, 0 }, { N_F, "stc.l\tgbr,@-r%d", 0xf0ff, 0x4013, 0, 0 }, { N_F, "stc.l\tvbr,@-r%d", 0xf0ff, 0x4023, 0, 0 }, { N_F, "sts.l\tmach,@-r%d", 0xf0ff, 0x4002, 0, 0 }, { N_F, "sts.l\tmacl,@-r%d", 0xf0ff, 0x4012, 0, 0 }, { N_F, "sts.l\tpr,@-r%d", 0xf0ff, 0x4022, 0, 0 }, { M_F, "ldc\tr%d,sr", 0xf0ff, 0x400e, 0, 0 }, { M_F, "ldc\tr%d,gbr", 0xf0ff, 0x401e, 0, 0 }, { M_F, "ldc\tr%d,vbr", 0xf0ff, 0x402e, 0, 0 }, { M_F, "lds\tr%d,mach", 0xf0ff, 0x400a, 0, 0 }, { M_F, "lds\tr%d,macl", 0xf0ff, 0x401a, 0, 0 }, { M_F, "lds\tr%d,pr", 0xf0ff, 0x402a, 0, 0 }, { M_F, "jmp\t@r%d", 0xf0ff, 0x402b, 0, 0 }, { M_F, "jsr\t@r%d", 0xf0ff, 0x400b, 0, 0 }, { M_F, "ldc.l\t@r%d+,sr", 0xf0ff, 0x4007, 0, 0 }, { M_F, "ldc.l\t@r%d+,gbr", 0xf0ff, 0x4017, 0, 0 }, { M_F, "ldc.l\t@r%d+,vbr", 0xf0ff, 0x4027, 0, 0 }, { M_F, "lds.l\t@r%d+,mach", 0xf0ff, 0x4006, 0, 0 }, { M_F, "lds.l\t@r%d+,macl", 0xf0ff, 0x4016, 0, 0 }, { M_F, "lds.l\t@r%d+,pr", 0xf0ff, 0x4026, 0, 0 }, { M_F, "braf\tr%d", 0xf0ff, 0x0023, 0, 1 }, { M_F, "bsrf\tr%d", 0xf0ff, 0x0003, 0, 1 }, { NM_F, "add\tr%d,r%d", 0xf00f, 0x300c, 0, 0 }, { NM_F, "addc\tr%d,r%d", 0xf00f, 0x300e, 0, 0 }, { NM_F, "addv\tr%d,r%d", 0xf00f, 0x300f, 0, 0 }, { NM_F, "and\tr%d,r%d", 0xf00f, 0x2009, 0, 0 }, { NM_F, "cmp/eq\tr%d,r%d", 0xf00f, 0x3000, 0, 0 }, { NM_F, "cmp/hs\tr%d,r%d", 0xf00f, 0x3002, 0, 0 }, { NM_F, "cmp/ge\tr%d,r%d", 0xf00f, 0x3003, 0, 0 }, { NM_F, "cmp/hi\tr%d,r%d", 0xf00f, 0x3006, 0, 0 }, { NM_F, "cmp/gt\tr%d,r%d", 0xf00f, 0x3007, 0, 0 }, { NM_F, "cmp/str\tr%d,r%d", 0xf00f, 0x200c, 0, 0 }, { NM_F, "div1\tr%d,r%d", 0xf00f, 0x3004, 0, 0 }, { NM_F, "div0s\tr%d,r%d", 0xf00f, 0x2007, 0, 0 }, { NM_F, "dmuls.l\tr%d,r%d", 0xf00f, 0x300d, 0, 1 }, { NM_F, "dmulu.l\tr%d,r%d", 0xf00f, 0x3005, 0, 1 }, { NM_F, "exts.b\tr%d,r%d", 0xf00f, 0x600e, 0, 0 }, { NM_F, "exts.w\tr%d,r%d", 0xf00f, 0x600f, 0, 0 }, { NM_F, "extu.b\tr%d,r%d", 0xf00f, 0x600c, 0, 0 }, { NM_F, "extu.w\tr%d,r%d", 0xf00f, 0x600d, 0, 0 }, { NM_F, "mov\tr%d,r%d", 0xf00f, 0x6003, 0, 0 }, { NM_F, "mul.l\tr%d,r%d", 0xf00f, 0x0007, 0, 1 }, { NM_F, "muls.w\tr%d,r%d", 0xf00f, 0x200f, 0, 0 }, { NM_F, "mulu.w\tr%d,r%d", 0xf00f, 0x200e, 0, 0 }, { NM_F, "neg\tr%d,r%d", 0xf00f, 0x600b, 0, 0 }, { NM_F, "negc\tr%d,r%d", 0xf00f, 0x600a, 0, 0 }, { NM_F, "not\tr%d,r%d", 0xf00f, 0x6007, 0, 0 }, { NM_F, "or\tr%d,r%d", 0xf00f, 0x200b, 0, 0 }, { NM_F, "sub\tr%d,r%d", 0xf00f, 0x3008, 0, 0 }, { NM_F, "subc\tr%d,r%d", 0xf00f, 0x300a, 0, 0 }, { NM_F, "subv\tr%d,r%d", 0xf00f, 0x300b, 0, 0 }, { NM_F, "swap.b\tr%d,r%d", 0xf00f, 0x6008, 0, 0 }, { NM_F, "swap.w\tr%d,r%d", 0xf00f, 0x6009, 0, 0 }, { NM_F, "tst\tr%d,r%d", 0xf00f, 0x2008, 0, 0 }, { NM_F, "xor\tr%d,r%d", 0xf00f, 0x200a, 0, 0 }, { NM_F, "xtrct\tr%d,r%d", 0xf00f, 0x200d, 0, 0 }, { NM_F, "mov.b\tr%d,@r%d", 0xf00f, 0x2000, 0, 0 }, { NM_F, "mov.w\tr%d,@r%d", 0xf00f, 0x2001, 0, 0 }, { NM_F, "mov.l\tr%d,@r%d", 0xf00f, 0x2002, 0, 0 }, { NM_F, "mov.b\t@r%d,r%d", 0xf00f, 0x6000, 0, 0 }, { NM_F, "mov.w\t@r%d,r%d", 0xf00f, 0x6001, 0, 0 }, { NM_F, "mov.l\t@r%d,r%d", 0xf00f, 0x6002, 0, 0 }, { NM_F, "mac.l\t@r%d+,@r%d+", 0xf00f, 0x000f, 0, 1 }, { NM_F, "mac.w\t@r%d+,@r%d+", 0xf00f, 0x400f, 0, 0 }, { NM_F, "mov.b\t@r%d+,r%d", 0xf00f, 0x6004, 0, 0 }, { NM_F, "mov.w\t@r%d+,r%d", 0xf00f, 0x6005, 0, 0 }, { NM_F, "mov.l\t@r%d+,r%d", 0xf00f, 0x6006, 0, 0 }, { NM_F, "mov.b\tr%d,@-r%d", 0xf00f, 0x2004, 0, 0 }, { NM_F, "mov.w\tr%d,@-r%d", 0xf00f, 0x2005, 0, 0 }, { NM_F, "mov.l\tr%d,@-r%d", 0xf00f, 0x2006, 0, 0 }, { NM_F, "mov.b\tr%d,@(r0,r%d)", 0xf00f, 0x0004, 0, 0 }, { NM_F, "mov.w\tr%d,@(r0,r%d)", 0xf00f, 0x0005, 0, 0 }, { NM_F, "mov.l\tr%d,@(r0,r%d)", 0xf00f, 0x0006, 0, 0 }, { NM_F, "mov.b\t@(r0,r%d),r%d", 0xf00f, 0x000c, 0, 0 }, { NM_F, "mov.w\t@(r0,r%d),r%d", 0xf00f, 0x000d, 0, 0 }, { NM_F, "mov.l\t@(r0,r%d),r%d", 0xf00f, 0x000e, 0, 0 }, { MD_F, "mov.b\t@(0x%03X,r%d), r0", 0xff00, 0x8400, 0, 0 }, { MD_F, "mov.w\t@(0x%03X,r%d), r0", 0xff00, 0x8500, 0, 0 }, { ND4_F, "mov.b\tr0,@(0x%03X,r%d)", 0xff00, 0x8000, 0, 0 }, { ND4_F, "mov.w\tr0,@(0x%03X,r%d)", 0xff00, 0x8100, 0, 0 }, { NMD_F, "mov.l\tr%d,@(0x%03X,r%d)", 0xf000, 0x1000, 0,0 }, { NMD_F, "mov.l\t@(0x%03X,r%d),r%d", 0xf000, 0x5000, 0,0 }, { D_F, "mov.b\tr0,@(0x%03X,gbr)", 0xff00, 0xc000, 1, 0 }, { D_F, "mov.w\tr0,@(0x%03X,gbr)", 0xff00, 0xc100, 2, 0 }, { D_F, "mov.l\tr0,@(0x%03X,gbr)", 0xff00, 0xc200, 4, 0 }, { D_F, "mov.b\t@(0x%03X,gbr),r0", 0xff00, 0xc400, 1, 0 }, { D_F, "mov.w\t@(0x%03X,gbr),r0", 0xff00, 0xc500, 2, 0 }, { D_F, "mov.l\t@(0x%03X,gbr),r0", 0xff00, 0xc600, 4, 0 }, { D_F, "mova\t@(0x%03X,pc),r0", 0xff00, 0xc700, 4, 0 }, { D_F, "bf\t0x%08X", 0xff00, 0x8b00, 5, 0 }, { D_F, "bf/s\t0x%08X", 0xff00, 0x8f00, 5, 1 }, { D_F, "bt\t0x%08X", 0xff00, 0x8900, 5, 0 }, { D_F, "bt/s\t0x%08X", 0xff00, 0x8d00, 5, 1 }, { D12_F, "bra\t0x%08X", 0xf000, 0xa000, 0, 0 }, { D12_F, "bsr\t0x%08X", 0xf000, 0xb000, 0, 0 }, { ND8_F, "mov.w\t@(0x%03X,pc),r%d", 0xf000, 0x9000, 2, 0 }, { ND8_F, "mov.l\t@(0x%03X,pc),r%d", 0xf000, 0xd000, 4, 0 }, { I_F, "and.b\t#0x%02X,@(r0,gbr)", 0xff00, 0xcd00, 0,0 }, { I_F, "or.b\t#0x%02X,@(r0,gbr)", 0xff00, 0xcf00, 0,0 }, { I_F, "tst.b\t#0x%02X,@(r0,gbr)", 0xff00, 0xcc00, 0,0 }, { I_F, "xor.b\t#0x%02X,@(r0,gbr)", 0xff00, 0xce00, 0,0 }, { I_F, "and\t#0x%02X,r0", 0xff00, 0xc900, 0, 0 }, { I_F, "cmp/eq\t#0x%02X,r0", 0xff00, 0x8800, 0, 0 }, { I_F, "or\t#0x%02X,r0", 0xff00, 0xcb00, 0, 0 }, { I_F, "tst\t#0x%02X,r0", 0xff00, 0xc800, 0, 0 }, { I_F, "xor\t#0x%02X,r0", 0xff00, 0xca00, 0, 0 }, { I_F, "trapa\t#0x%X", 0xff00, 0xc300, 0, 0 }, { NI_F, "add\t#0x%02X,r%d", 0xf000, 0x7000, 0, 0 }, { NI_F, "mov\t#0x%02X,r%d", 0xf000, 0xe000, 0, 0 }, { 0, NULL, 0, 0, 0, 0 } }; int FindOption(char *option, int p, int h, int u, int argc, char **argv) { static int t[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; int i; char *c; if (argc > 128) argc = 128; /* maximum this function can handle is 128 */ /* * if p = 1 and h = 0 will find option and return decimal value of * argv[i+1], if h = 1 will read it as hex. * if p = 0 then it will return index of option in argv[], 0 not found * if u = 1 will return index of first occurance of untouched option */ if (u) /* find first untouched element */ { for (i = 1; i < argc; i++) { if (!t[i]) /* 0 indicates untouched */ return i; } return 0; } if (p) /* find option and return integer value following it */ { for (i = 1; i < argc; i++) { if (strcmp(argv[i], option) == 0) /* found */ { if (i >= argc) /* bounds! */ return 0; t[i + 1] = t[i] = 1; /* touched */ if (!h) return atoi(argv[i + 1]); else return strtoul(argv[i + 1], &c, 16); } } return 0; /* no match */ } else /* find option and return position */ { for (i = 1; i < argc; i++) { if (strcmp(argv[i], option) == 0) { t[i] = 1; return i; /* found! return position */ } } return 0; } } /* * SH2Disasm(): SH-1/SH-2 disassembler routine. If mode = 0 then SH-2 mode, * otherwise SH-1 mode */ void SH2Disasm(unsigned v_addr, unsigned char *p_addr, int mode, char *m_addr) { int i; unsigned short op; op = (unsigned short) (*p_addr << 8) | *(p_addr + 1); printf("0x%08X: 0x%04X\t", v_addr, op); if (m_addr[0]==ND8_F) { if (m_addr[2]==-1) { unsigned int tmp = (op << 16) | ((unsigned int) (p_addr [2] << 8) | p_addr[3]); printf(".long\t0x%08X\t; 0x%08X",tmp,v_addr - (unsigned)m_addr[1]); } else printf(".short\t0x%08X\t; 0x%08X",op,v_addr - (unsigned)m_addr[1]); } else if (m_addr[0] != -1) { for (i = 0; tab[i].mnem != NULL; i++) /* 0 format */ { if ((op & tab[i].mask) == tab[i].bits) { if (tab[i].sh2 && mode) /* if SH-1 mode, no SH-2 */ printf("???"); else if (tab[i].format == ZERO_F) printf("%s", tab[i].mnem); else if (tab[i].format == N_F) printf(tab[i].mnem, (op >> 8) & 0xf); else if (tab[i].format == M_F) printf(tab[i].mnem, (op >> 8) & 0xf); else if (tab[i].format == NM_F) printf(tab[i].mnem, (op >> 4) & 0xf, (op >> 8) & 0xf); else if (tab[i].format == MD_F) { if (op & 0x100) printf(tab[i].mnem, (op & 0xf) * 2, (op >> 4) & 0xf); else printf(tab[i].mnem, op & 0xf, (op >> 4) & 0xf); } else if (tab[i].format == ND4_F) { if (op & 0x100) printf(tab[i].mnem, (op & 0xf) * 2, (op >> 4) & 0xf); else printf(tab[i].mnem, (op & 0xf), (op >> 4) & 0xf); } else if (tab[i].format == NMD_F) { if ((op & 0xf000) == 0x1000) printf(tab[i].mnem, (op >> 4) & 0xf, (op & 0xf) * 4, (op >> 8) & 0xf); else printf(tab[i].mnem, (op & 0xf) * 4, (op >> 4) & 0xf, (op >> 8) & 0xf); } else if (tab[i].format == D_F) { if (tab[i].dat <= 4) { if ((op & 0xff00) == 0xc700) { printf(tab[i].mnem, (op & 0xff) * tab[i].dat + 4); printf("\t; 0x%08X", (op & 0xff) * tab[i].dat + 4 + v_addr); } else printf(tab[i].mnem, (op & 0xff) * tab[i].dat); } else { if (op & 0x80) /* sign extend */ printf(tab[i].mnem, (((op & 0xff) + 0xffffff00) * 2) + v_addr + 4); else printf(tab[i].mnem, ((op & 0xff) * 2) + v_addr + 4); } } else if (tab[i].format == D12_F) { if (op & 0x800) /* sign extend */ printf(tab[i].mnem, ((op & 0xfff) + 0xfffff000) * 2 + v_addr + 4); else printf(tab[i].mnem, (op & 0xfff) * 2 + v_addr + 4); } else if (tab[i].format == ND8_F) { int imm = (op & 0xff) * tab[i].dat + 4; if ((op & 0xf000) == 0x9000) /* .W */ { int dat = (unsigned short) (*(imm + p_addr) << 8) | *(imm + p_addr + 1); m_addr[imm+0] = ND8_F; /* this couldn't be an instruction so mark it ! */ m_addr[imm+1] = imm; printf(tab[i].mnem, imm, (op >> 8) & 0xf); printf("\t; 0x%08X (0x%04X)", imm + v_addr, dat); } else /* .L */ { unsigned char *b_addr = (unsigned char *)((int)p_addr & 0xfffffffc); int dat = (unsigned int) (*(imm + b_addr) << 24) | (*(imm + b_addr + 1) << 16) | (*(imm + b_addr + 2) << 8) | *(imm + b_addr + 3) ; /* SH-1 register name lookup */ char* str = ""; if ( (dat & 0xfffffe00) == 0x05fffe00 ) str = regname[dat & 0x1ff]; m_addr[imm+(b_addr-p_addr)+0] = ND8_F; /* this couldn't be an instruction so mark it ! */ m_addr[imm+(b_addr-p_addr)+1] = imm; m_addr[imm+(b_addr-p_addr)+2] = -1; printf(tab[i].mnem, imm, (op >> 8) & 0xf); printf("\t; 0x%08X (0x%08X) %s", imm + (v_addr & 0xfffffffc), dat, str); } } else if (tab[i].format == I_F) printf(tab[i].mnem, op & 0xff); else if (tab[i].format == NI_F) printf(tab[i].mnem, op & 0xff, (op >> 8) & 0xf); else printf("???"); printf("\n"); return; } } printf("???"); } printf("\n"); } void ShowHelp() { printf("sh2d Version %s by Bart Trzynadlowski: A Free SH-1/SH-2 " "Disassembler\n", VERSION); printf("Usage: sh2d [options]\n"); printf("Options: -?,-h Show this help text\n"); printf(" -s # Start offset (hexadecimal)\n"); printf(" -l # Number of bytes (decimal)\n"); printf(" -o # Set origin (hexadecimal)\n"); printf(" -sh1 SH-1 disassembly only\n"); printf(" -sh2 SH-2 disassembly (default)\n"); exit(0); } int main(int argc, char **argv) { FILE *fp; long fsize, file, mode; unsigned start, len, calc_len = 0, org, do_org, i, j = 0; char *buffer; char *mark; if (argc == 1) /* show help */ ShowHelp(); if (FindOption("-?", 0, 0, 0, argc, argv) || FindOption("-h", 0, 0, 0, argc, argv)) ShowHelp(); if (FindOption("-sh1", 0, 0, 0, argc, argv)) mode = 1; /* SH-1 mode */ else mode = 0; /* SH-2 mode */ if (FindOption("-sh2", 0, 0, 0, argc, argv)) mode = 0; /* SH-2 mode */ start = FindOption("-s", 1, 1, 0, argc, argv); org = FindOption("-o", 1, 1, 0, argc, argv); if (!(len = FindOption("-l", 1, 0, 0, argc, argv))) { if (FindOption("-l", 0, 0, 0, argc, argv)) return 0; /* -l was actually specified w/ 0 */ calc_len = 1; /* no -l, calculate length */ } if (FindOption("-o", 0, 0, 0, argc, argv)) do_org = 1; /* -o was actually 0 */ else do_org = 0; /* there was no -o, ignore the org variable */ if (!(file = FindOption(NULL, 0, 0, 1, argc, argv))) { fprintf(stderr, "sh2d: No input file specified. Try " "\"sh2d -h\" for usage instructions\n"); exit(1); } if ((fp = fopen(argv[file], "rb")) == NULL) { fprintf(stderr, "sh2d: Failed to open file: %s\n", argv[file]); exit(1); } fseek(fp, 0, SEEK_END); fsize = ftell(fp); rewind(fp); if ((buffer = (unsigned char *) calloc(fsize * 2, sizeof(unsigned short))) == NULL) { fprintf(stderr, "sh2d: Not enough memory to load input " "file: %s, %lu bytes\n", argv[file], fsize); exit(1); } fread(buffer, sizeof(unsigned char), fsize, fp); fclose(fp); if (calc_len) len = fsize - start; mark = buffer + fsize; for (i = start; i < (unsigned) fsize && j < len; i += 2) { if (do_org) { SH2Disasm(org, &buffer[i], mode, &mark[i]); org += 2; } else SH2Disasm(i, &buffer[i], mode, &mark[i]); j += 2; } return 0; }