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authorBjörn Stenberg <bjorn@haxx.se>2002-03-28 14:34:13 +0000
committerBjörn Stenberg <bjorn@haxx.se>2002-03-28 14:34:13 +0000
commite1715c27e08de52f38ff2bcc5fefe97fa16664dc (patch)
tree0207f01f7a040f69ae581a49b371843e22a38f1c /tools/sh2d.c
parent68ee35c679b680cd7083e40a630ca065f14c7c75 (diff)
downloadrockbox-e1715c27e08de52f38ff2bcc5fefe97fa16664dc.tar.gz
rockbox-e1715c27e08de52f38ff2bcc5fefe97fa16664dc.zip
First checkin
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@55 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'tools/sh2d.c')
-rw-r--r--tools/sh2d.c569
1 files changed, 569 insertions, 0 deletions
diff --git a/tools/sh2d.c b/tools/sh2d.c
new file mode 100644
index 0000000000..69d514c3fe
--- /dev/null
+++ b/tools/sh2d.c
@@ -0,0 +1,569 @@
+/*
+ * sh2d
+ * Bart Trzynadlowski, July 24, 2000
+ * Public domain
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#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 <file> [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;
+}