+//
+// Jaguar RISC Disassembly
+//
+// Originally by David Raingeard
+// GCC/SDL port by Niels Wagenaar (Linux/WIN32) and Carwin Jones (BeOS)
+// Minor cleanups by James Hammons
+// (C) 2012 Underground Software
+//
+// JLH = James Hammons <jlhamm@acm.org>
+//
+// Who When What
+// --- ---------- -------------------------------------------------------------
+// JLH 06/01/2012 Created this log (long overdue! ;-)
+// JLH 01/23/2013 Beautifying of disassembly, including hex digits of opcodes
+// and operands
+//
+
+#include "jagdasm.h"
+
+#include <stdio.h>
#include "jaguar.h"
-#define ROPCODE(a) jaguar_word_read(a)
+#define ROPCODE(a) JaguarReadWord(a)
uint8 convert_zero[32] =
{ 32,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 };
-char * condition[32] =
+const char * condition[32] =
{
"",
"nz,",
"???,",
"never,"
};
-
-char * signed_16bit(INT16 val)
+
+char * signed_16bit(int16 val)
{
static char temp[10];
return temp;
}
-unsigned dasmjag(int dsp_type, char * buffer, unsigned pc)
+
+unsigned dasmjag(int dsp_type, char * bufferOut, unsigned pc)
{
+ char buffer[64];
int op = ROPCODE(pc);
int reg1 = (op >> 5) & 31;
int reg2 = op & 31;
int size = 2;
-
pc += 2;
+
switch (op >> 10)
{
- case 0: sprintf(buffer, "add r%d,r%d", reg1, reg2); break;
- case 1: sprintf(buffer, "addc r%d,r%d", reg1, reg2); break;
- case 2: sprintf(buffer, "addq $%x,r%d", convert_zero[reg1], reg2); break;
- case 3: sprintf(buffer, "addqt $%x,r%d", convert_zero[reg1], reg2); break;
- case 4: sprintf(buffer, "sub r%d,r%d", reg1, reg2); break;
- case 5: sprintf(buffer, "subc r%d,r%d", reg1, reg2); break;
- case 6: sprintf(buffer, "subq $%x,r%d", convert_zero[reg1], reg2); break;
- case 7: sprintf(buffer, "subqt $%x,r%d", convert_zero[reg1], reg2); break;
- case 8: sprintf(buffer, "neg r%d", reg2); break;
- case 9: sprintf(buffer, "and r%d,r%d", reg1, reg2); break;
- case 10: sprintf(buffer, "or r%d,r%d", reg1, reg2); break;
- case 11: sprintf(buffer, "xor r%d,r%d", reg1, reg2); break;
- case 12: sprintf(buffer, "not r%d", reg2); break;
- case 13: sprintf(buffer, "btst $%x,r%d", reg1, reg2); break;
- case 14: sprintf(buffer, "bset $%x,r%d", reg1, reg2); break;
- case 15: sprintf(buffer, "bclr $%x,r%d", reg1, reg2); break;
- case 16: sprintf(buffer, "mult r%d,r%d", reg1, reg2); break;
- case 17: sprintf(buffer, "imult r%d,r%d", reg1, reg2); break;
- case 18: sprintf(buffer, "imultn r%d,r%d", reg1, reg2); break;
- case 19: sprintf(buffer, "resmac r%d", reg2); break;
- case 20: sprintf(buffer, "imacn r%d,r%d", reg1, reg2); break;
- case 21: sprintf(buffer, "div r%d,r%d", reg1, reg2); break;
- case 22: sprintf(buffer, "abs r%d", reg2); break;
- case 23: sprintf(buffer, "sh r%d,r%d", reg1, reg2); break;
- case 24: sprintf(buffer, "shlq $%x,r%d", 32 - convert_zero[reg1], reg2); break;
- case 25: sprintf(buffer, "shrq $%x,r%d", convert_zero[reg1], reg2); break;
- case 26: sprintf(buffer, "sha r%d,r%d", reg1, reg2); break;
- case 27: sprintf(buffer, "sharq $%x,r%d", convert_zero[reg1], reg2); break;
- case 28: sprintf(buffer, "ror r%d,r%d", reg1, reg2); break;
- case 29: sprintf(buffer, "rorq $%x,r%d", convert_zero[reg1], reg2); break;
- case 30: sprintf(buffer, "cmp r%d,r%d", reg1, reg2); break;
- case 31: sprintf(buffer, "cmpq %s,r%d", signed_16bit((INT16)(reg1 << 11) >> 11), reg2);break;
+ case 0: sprintf(buffer, "ADD R%02d,R%02d", reg1, reg2); break;
+ case 1: sprintf(buffer, "ADDC R%02d,R%02d", reg1, reg2); break;
+ case 2: sprintf(buffer, "ADDQ $%X,R%02d", convert_zero[reg1], reg2); break;
+ case 3: sprintf(buffer, "ADDQT $%X,R%02d", convert_zero[reg1], reg2); break;
+ case 4: sprintf(buffer, "SUB R%02d,R%02d", reg1, reg2); break;
+ case 5: sprintf(buffer, "SUBC R%02d,R%02d", reg1, reg2); break;
+ case 6: sprintf(buffer, "SUBQ $%X,R%02d", convert_zero[reg1], reg2); break;
+ case 7: sprintf(buffer, "SUBQT $%X,R%02d", convert_zero[reg1], reg2); break;
+ case 8: sprintf(buffer, "NEG R%02d", reg2); break;
+ case 9: sprintf(buffer, "AND R%02d,R%02d", reg1, reg2); break;
+ case 10: sprintf(buffer, "OR R%02d,R%02d", reg1, reg2); break;
+ case 11: sprintf(buffer, "XOR R%02d,R%02d", reg1, reg2); break;
+ case 12: sprintf(buffer, "NOT R%02d", reg2); break;
+ case 13: sprintf(buffer, "BTST $%X,R%02d", reg1, reg2); break;
+ case 14: sprintf(buffer, "BSET $%X,R%02d", reg1, reg2); break;
+ case 15: sprintf(buffer, "BCLR $%X,R%02d", reg1, reg2); break;
+ case 16: sprintf(buffer, "MULT R%02d,R%02d", reg1, reg2); break;
+ case 17: sprintf(buffer, "IMULT R%02d,R%02d", reg1, reg2); break;
+ case 18: sprintf(buffer, "IMULTN R%02d,R%02d", reg1, reg2); break;
+ case 19: sprintf(buffer, "RESMAC R%02d", reg2); break;
+ case 20: sprintf(buffer, "IMACN R%02d,R%02d", reg1, reg2); break;
+ case 21: sprintf(buffer, "DIV R%02d,R%02d", reg1, reg2); break;
+ case 22: sprintf(buffer, "ABS R%02d", reg2); break;
+ case 23: sprintf(buffer, "SH R%02d,R%02d", reg1, reg2); break;
+ case 24: sprintf(buffer, "SHLQ $%X,R%02d", 32 - convert_zero[reg1], reg2); break;
+ case 25: sprintf(buffer, "SHRQ $%X,R%02d", convert_zero[reg1], reg2); break;
+ case 26: sprintf(buffer, "SHA R%02d,R%02d", reg1, reg2); break;
+ case 27: sprintf(buffer, "SHARQ $%X,R%02d", convert_zero[reg1], reg2); break;
+ case 28: sprintf(buffer, "ROR R%02d,R%02d", reg1, reg2); break;
+ case 29: sprintf(buffer, "RORQ $%X,R%02d", convert_zero[reg1], reg2); break;
+ case 30: sprintf(buffer, "CMP R%02d,R%02d", reg1, reg2); break;
+ case 31: sprintf(buffer, "CMPQ %s,R%02d", signed_16bit((int16)(reg1 << 11) >> 11), reg2);break;
case 32: if (dsp_type == JAGUAR_GPU)
- sprintf(buffer, "sat8 r%d", reg2);
+ sprintf(buffer, "SAT8 R%02d", reg2);
else
- sprintf(buffer, "subqmod $%x,r%d", convert_zero[reg1], reg2);
+ sprintf(buffer, "SUBQMOD $%X,R%02d", convert_zero[reg1], reg2);
break;
case 33: if (dsp_type == JAGUAR_GPU)
- sprintf(buffer, "sat16 r%d", reg2);
+ sprintf(buffer, "SAT16 R%02d", reg2);
else
- sprintf(buffer, "sat16s r%d", reg2);
+ sprintf(buffer, "SAT16S R%02d", reg2);
break;
- case 34: sprintf(buffer, "move r%d,r%d", reg1, reg2); break;
- case 35: sprintf(buffer, "moveq %d,r%d", reg1, reg2); break;
- case 36: sprintf(buffer, "moveta r%d,r%d", reg1, reg2); break;
- case 37: sprintf(buffer, "movefa r%d,r%d", reg1, reg2); break;
- case 38: sprintf(buffer, "movei $%x,r%d", ROPCODE(pc) | (ROPCODE(pc+2)<<16), reg2); size = 6; break;
- case 39: sprintf(buffer, "loadb (r%d),r%d", reg1, reg2); break;
- case 40: sprintf(buffer, "loadw (r%d),r%d", reg1, reg2); break;
- case 41: sprintf(buffer, "load (r%d),r%d", reg1, reg2); break;
+ case 34: sprintf(buffer, "MOVE R%02d,R%02d", reg1, reg2); break;
+ case 35: sprintf(buffer, "MOVEQ %d,R%02d", reg1, reg2); break;
+ case 36: sprintf(buffer, "MOVETA R%02d,R%02d", reg1, reg2); break;
+ case 37: sprintf(buffer, "MOVEFA R%02d,R%02d", reg1, reg2); break;
+ case 38: sprintf(buffer, "MOVEI #$%X,R%02d", ROPCODE(pc) | (ROPCODE(pc+2)<<16), reg2); size = 6; break;
+ case 39: sprintf(buffer, "LOADB (R%02d),R%02d", reg1, reg2); break;
+ case 40: sprintf(buffer, "LOADW (R%02d),R%02d", reg1, reg2); break;
+ case 41: sprintf(buffer, "LOAD (R%02d),R%02d", reg1, reg2); break;
case 42: if (dsp_type == JAGUAR_GPU)
- sprintf(buffer, "loadp (r%d),r%d", reg1, reg2);
+ sprintf(buffer, "LOADP (R%02d),R%02d", reg1, reg2);
else
- sprintf(buffer, "sat32s r%d", reg2);
+ sprintf(buffer, "SAT32S R%02d", reg2);
break;
- case 43: sprintf(buffer, "load (r14+$%x),r%d", convert_zero[reg1]*4, reg2);break;
- case 44: sprintf(buffer, "load (r15+$%x),r%d", convert_zero[reg1]*4, reg2);break;
- case 45: sprintf(buffer, "storeb r%d,(r%d)", reg2, reg1); break;
- case 46: sprintf(buffer, "storew r%d,(r%d)", reg2, reg1); break;
- case 47: sprintf(buffer, "store r%d,(r%d)", reg2, reg1); break;
+ case 43: sprintf(buffer, "LOAD (R14+$%X),R%02d", convert_zero[reg1]*4, reg2);break;
+ case 44: sprintf(buffer, "LOAD (R15+$%X),R%02d", convert_zero[reg1]*4, reg2);break;
+ case 45: sprintf(buffer, "STOREB R%02d,(R%02d)", reg2, reg1); break;
+ case 46: sprintf(buffer, "STOREW R%02d,(R%02d)", reg2, reg1); break;
+ case 47: sprintf(buffer, "STORE R%02d,(R%02d)", reg2, reg1); break;
case 48: if (dsp_type == JAGUAR_GPU)
- sprintf(buffer, "storep r%d,(r%d)", reg2, reg1);
+ sprintf(buffer, "STOREP R%02d,(R%02d)", reg2, reg1);
else
- sprintf(buffer, "mirror r%d", reg2);
+ sprintf(buffer, "MIRROR R%02d", reg2);
break;
- case 49: sprintf(buffer, "store r%d,(r14+$%x)", reg2, convert_zero[reg1]*4);break;
- case 50: sprintf(buffer, "store r%d,(r15+$%x)", reg2, convert_zero[reg1]*4);break;
- case 51: sprintf(buffer, "move pc,r%d", reg2); break;
- case 52: sprintf(buffer, "jump %s(r%d)", condition[reg2], reg1); break;
- case 53: sprintf(buffer, "jr %s%08X", condition[reg2], pc + ((INT8)(reg1 << 3) >> 2)); break;
- case 54: sprintf(buffer, "mmult r%d,r%d", reg1, reg2); break;
- case 55: sprintf(buffer, "mtoi r%d,r%d", reg1, reg2); break;
- case 56: sprintf(buffer, "normi r%d,r%d", reg1, reg2); break;
- case 57: sprintf(buffer, "nop"); break;
- case 58: sprintf(buffer, "load (r14+r%d),r%d", reg1, reg2); break;
- case 59: sprintf(buffer, "load (r15+r%d),r%d", reg1, reg2); break;
- case 60: sprintf(buffer, "store r%d,(r14+r%d)", reg2, reg1); break;
- case 61: sprintf(buffer, "store r%d,(r15+r%d)", reg2, reg1); break;
+ case 49: sprintf(buffer, "STORE R%02d,(R14+$%X)", reg2, convert_zero[reg1]*4);break;
+ case 50: sprintf(buffer, "STORE R%02d,(R15+$%X)", reg2, convert_zero[reg1]*4);break;
+ case 51: sprintf(buffer, "MOVE PC,R%02d", reg2); break;
+ case 52: sprintf(buffer, "JUMP %s(R%02d)", condition[reg2], reg1); break;
+ case 53: sprintf(buffer, "JR %s$%X", condition[reg2], pc + ((int8)(reg1 << 3) >> 2)); break;
+ case 54: sprintf(buffer, "MMULT R%02d,R%02d", reg1, reg2); break;
+ case 55: sprintf(buffer, "MTOI R%02d,R%02d", reg1, reg2); break;
+ case 56: sprintf(buffer, "NORMI R%02d,R%02d", reg1, reg2); break;
+ case 57: sprintf(buffer, "NOP"); break;
+ case 58: sprintf(buffer, "LOAD (R14+R%02d),R%02d", reg1, reg2); break;
+ case 59: sprintf(buffer, "LOAD (R15+R%02d),R%02d", reg1, reg2); break;
+ case 60: sprintf(buffer, "STORE R%02d,(R14+R%02d)", reg2, reg1); break;
+ case 61: sprintf(buffer, "STORE R%02d,(R15+R%02d)", reg2, reg1); break;
case 62: if (dsp_type == JAGUAR_GPU)
- sprintf(buffer, "sat24 r%d", reg2);
+ sprintf(buffer, "SAT24 R%02d", reg2);
else
- sprintf(buffer, "illegal");
+ sprintf(buffer, "illegal");
break;
case 63: if (dsp_type == JAGUAR_GPU)
- sprintf(buffer, reg1 ?
- "unpack r%d" :
- "pack r%d", reg2);
+ sprintf(buffer, (reg1 ? "UNPACK R%02d" : "PACK R%02d"), reg2);
else
- sprintf(buffer, "addqmod $%x,r%d", convert_zero[reg1], reg2);
+ sprintf(buffer, "ADDQMOD $%X,R%02d", convert_zero[reg1], reg2);
break;
}
- sprintf(buffer,"%s (%04X)", buffer, op);
+
+#if 0
+ sprintf(bufferOut,"%-24s (%04X)", buffer, op);
+#else
+ if (size == 2)
+ sprintf(bufferOut, "%04X %-24s", op, buffer);
+ else
+ {
+ uint16 word1 = ROPCODE(pc), word2 = ROPCODE(pc + 2);
+ sprintf(bufferOut, "%04X %04X %04X %-24s", op, word1, word2, buffer);
+ }
+#endif
return size;
}
projects / virtualjaguar / blobdiff