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path: root/src/emu/cpu/mips/mipsdasm.c
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Diffstat (limited to 'src/emu/cpu/mips/mipsdasm.c')
-rw-r--r--src/emu/cpu/mips/mipsdasm.c620
1 files changed, 620 insertions, 0 deletions
diff --git a/src/emu/cpu/mips/mipsdasm.c b/src/emu/cpu/mips/mipsdasm.c
new file mode 100644
index 00000000000..10297b8e439
--- /dev/null
+++ b/src/emu/cpu/mips/mipsdasm.c
@@ -0,0 +1,620 @@
+/*
+ * MIPS disassembler for the MAME project written by smf
+ *
+ */
+
+#include "psx.h"
+
+static char *make_signed_hex_str_16( UINT32 value )
+{
+ static char s_hex[ 20 ];
+
+ value &= 0xffff;
+ if( value & 0x8000 )
+ {
+ sprintf( s_hex, "-$%x", ( 0 - value ) & 0x7fff );
+ }
+ else
+ {
+ sprintf( s_hex, "$%x", value & 0x7fff );
+ }
+ return s_hex;
+}
+
+static const char *s_cpugenreg[] =
+{
+ "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3",
+ "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7",
+ "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
+ "t8", "t9", "k0", "k1", "gp", "sp", "fp", "ra"
+};
+
+static const char *s_cp0genreg[] =
+{
+ "Index", "Random", "EntryLo", "cp0r3", "Context", "cp0r5", "cp0r6", "cp0r7",
+ "BadVAddr", "cp0r9", "EntryHi", "cp0r11", "SR", "Cause", "EPC", "PRId",
+ "cp0r16", "cp0r17", "cp0r18", "cp0r19", "cp0r20", "cp0r21", "cp0r22", "cp0r23",
+ "cp0r24", "cp0r25", "cp0r26", "cp0r27", "cp0r28", "cp0r29", "cp0r30", "cp0r31"
+};
+
+static const char *s_cp1genreg[] =
+{
+ "cp1r0", "cp1r1", "cp1r2", "cp1r3", "cp1r4", "cp1r5", "cp1r6", "cp1r7",
+ "cp1r8", "cp1r9", "cp1r10", "cp1r11", "cp1r12", "cp1r13", "cp1r14", "cp1r15",
+ "cp1r16", "cp1r17", "cp1r18", "cp1r19", "cp1r20", "cp1r21", "cp1r22", "cp1r22",
+ "cp1r23", "cp1r24", "cp1r25", "cp1r26", "cp1r27", "cp1r28", "cp1r29", "cp1r30"
+};
+
+static const char *s_cp1ctlreg[] =
+{
+ "cp1cr0", "cp1cr1", "cp1cr2", "cp1cr3", "cp1cr4", "cp1cr5", "cp1cr6", "cp1cr7",
+ "cp1cr8", "cp1cr9", "cp1cr10", "cp1cr11", "cp1cr12", "cp1cr13", "cp1cr14", "cp1cr15",
+ "cp1cr16", "cp1cr17", "cp1cr18", "cp1cr19", "cp1cr20", "cp1cr21", "cp1cr22", "cp1cr23",
+ "cp1cr24", "cp1cr25", "cp1cr26", "cp1cr27", "cp1cr28", "cp1cr29", "cp1cr30", "cp1cr31"
+};
+
+static const char *s_cp2genreg[] =
+{
+ "vxy0", "vz0", "vxy1", "vz1", "vxy2", "vz2", "rgb", "otz",
+ "ir0", "ir1", "ir2", "ir3", "sxy0", "sxy1", "sxy2", "sxyp",
+ "sz0", "sz1", "sz2", "sz3", "rgb0", "rgb1", "rgb2", "cp2cr23",
+ "mac0", "mac1", "mac2", "mac3", "irgb", "orgb", "lzcs", "lzcr"
+};
+
+static const char *s_cp2ctlreg[] =
+{
+ "r11r12", "r13r21", "r22r23", "r31r32", "r33", "trx", "try", "trz",
+ "l11l12", "l13l21", "l22l23", "l31l32", "l33", "rbk", "gbk", "bbk",
+ "lr1lr2", "lr3lg1", "lg2lg3", "lb1lb2", "lb3", "rfc", "gfc", "bfc",
+ "ofx", "ofy", "h", "dqa", "dqb", "zsf3", "zsf4", "flag"
+};
+
+static const char *s_gtesf[] =
+{
+ "0", "12"
+};
+
+static const char *s_gtemx[] =
+{
+ "rm", "lm", "cm", "0"
+};
+
+static const char *s_gtev[] =
+{
+ "v0", "v1", "v2", "ir"
+};
+
+static const char *s_gtecv[] =
+{
+ "tr", "bk", "fc", "0"
+};
+
+static const char *s_gtelm[] =
+{
+ "0", "1"
+};
+
+static char *make_address( UINT32 pc, UINT32 op )
+{
+ static char s_address[ 20 ];
+#ifndef STANDALONE
+ if( pc == activecpu_get_pc() )
+ {
+ sprintf( s_address, "%s(%s) ; 0x%08x", make_signed_hex_str_16( INS_IMMEDIATE( op ) ), s_cpugenreg[ INS_RS( op ) ],
+ (UINT32)( activecpu_get_reg( MIPS_R0 + INS_RS( op ) ) + (INT16)INS_IMMEDIATE( op ) ) );
+ return s_address;
+ }
+#endif
+ sprintf( s_address, "%s(%s)", make_signed_hex_str_16( INS_IMMEDIATE( op ) ), s_cpugenreg[ INS_RS( op ) ] );
+ return s_address;
+}
+
+unsigned DasmMIPS( char *buffer, UINT32 pc, const UINT8 *opram )
+{
+ UINT32 op;
+ const UINT8 *oldopram;
+
+ oldopram = opram;
+ op = ( opram[ 3 ] << 24 ) | ( opram[ 2 ] << 16 ) | ( opram[ 1 ] << 8 ) | ( opram[ 0 ] << 0 );
+ opram += 4;
+
+ sprintf( buffer, "dw $%08x", op );
+
+ switch( INS_OP( op ) )
+ {
+ case OP_SPECIAL:
+ switch( INS_FUNCT( op ) )
+ {
+ case FUNCT_SLL:
+ if( op == 0 )
+ {
+ /* the standard nop is "sll zero,zero,$0000" */
+ sprintf( buffer, "nop" );
+ }
+ else
+ {
+ sprintf( buffer, "sll %s,%s,$%02x", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RT( op ) ], INS_SHAMT( op ) );
+ }
+ break;
+ case FUNCT_SRL:
+ sprintf( buffer, "srl %s,%s,$%02x", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RT( op ) ], INS_SHAMT( op ) );
+ break;
+ case FUNCT_SRA:
+ sprintf( buffer, "sra %s,%s,$%02x", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RT( op ) ], INS_SHAMT( op ) );
+ break;
+ case FUNCT_SLLV:
+ sprintf( buffer, "sllv %s,%s,%s", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RT( op ) ], s_cpugenreg[ INS_RS( op ) ] );
+ break;
+ case FUNCT_SRLV:
+ sprintf( buffer, "srlv %s,%s,%s", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RT( op ) ], s_cpugenreg[ INS_RS( op ) ] );
+ break;
+ case FUNCT_SRAV:
+ sprintf( buffer, "srav %s,%s,%s", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RT( op ) ], s_cpugenreg[ INS_RS( op ) ] );
+ break;
+ case FUNCT_JR:
+ if( INS_RD( op ) == 0 )
+ {
+ sprintf( buffer, "jr %s", s_cpugenreg[ INS_RS( op ) ] );
+ }
+ break;
+ case FUNCT_JALR:
+ sprintf( buffer, "jalr %s,%s", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RS( op ) ] );
+ break;
+ case FUNCT_SYSCALL:
+ sprintf( buffer, "syscall $%05x", INS_CODE( op ) );
+ break;
+ case FUNCT_BREAK:
+ sprintf( buffer, "break $%05x", INS_CODE( op ) );
+ break;
+ case FUNCT_MFHI:
+ sprintf( buffer, "mfhi %s", s_cpugenreg[ INS_RD( op ) ] );
+ break;
+ case FUNCT_MTHI:
+ if( INS_RD( op ) == 0 )
+ {
+ sprintf( buffer, "mthi %s", s_cpugenreg[ INS_RS( op ) ] );
+ }
+ break;
+ case FUNCT_MFLO:
+ sprintf( buffer, "mflo %s", s_cpugenreg[ INS_RD( op ) ] );
+ break;
+ case FUNCT_MTLO:
+ if( INS_RD( op ) == 0 )
+ {
+ sprintf( buffer, "mtlo %s", s_cpugenreg[ INS_RS( op ) ] );
+ }
+ break;
+ case FUNCT_MULT:
+ if( INS_RD( op ) == 0 )
+ {
+ sprintf( buffer, "mult %s,%s", s_cpugenreg[ INS_RS( op ) ], s_cpugenreg[ INS_RT( op ) ] );
+ }
+ break;
+ case FUNCT_MULTU:
+ if( INS_RD( op ) == 0 )
+ {
+ sprintf( buffer, "multu %s,%s", s_cpugenreg[ INS_RS( op ) ], s_cpugenreg[ INS_RT( op ) ] );
+ }
+ break;
+ case FUNCT_DIV:
+ if( INS_RD( op ) == 0 )
+ {
+ sprintf( buffer, "div %s,%s", s_cpugenreg[ INS_RS( op ) ], s_cpugenreg[ INS_RT( op ) ] );
+ }
+ break;
+ case FUNCT_DIVU:
+ if( INS_RD( op ) == 0 )
+ {
+ sprintf( buffer, "divu %s,%s", s_cpugenreg[ INS_RS( op ) ], s_cpugenreg[ INS_RT( op ) ] );
+ }
+ break;
+ case FUNCT_ADD:
+ sprintf( buffer, "add %s,%s,%s", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RS( op ) ], s_cpugenreg[ INS_RT( op ) ] );
+ break;
+ case FUNCT_ADDU:
+ sprintf( buffer, "addu %s,%s,%s", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RS( op ) ], s_cpugenreg[ INS_RT( op ) ] );
+ break;
+ case FUNCT_SUB:
+ sprintf( buffer, "sub %s,%s,%s", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RS( op ) ], s_cpugenreg[ INS_RT( op ) ] );
+ break;
+ case FUNCT_SUBU:
+ sprintf( buffer, "subu %s,%s,%s", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RS( op ) ], s_cpugenreg[ INS_RT( op ) ] );
+ break;
+ case FUNCT_AND:
+ sprintf( buffer, "and %s,%s,%s", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RS( op ) ], s_cpugenreg[ INS_RT( op ) ] );
+ break;
+ case FUNCT_OR:
+ sprintf( buffer, "or %s,%s,%s", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RS( op ) ], s_cpugenreg[ INS_RT( op ) ] );
+ break;
+ case FUNCT_XOR:
+ sprintf( buffer, "xor %s,%s,%s", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RS( op ) ], s_cpugenreg[ INS_RT( op ) ] );
+ break;
+ case FUNCT_NOR:
+ sprintf( buffer, "nor %s,%s,%s", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RS( op ) ], s_cpugenreg[ INS_RT( op ) ] );
+ break;
+ case FUNCT_SLT:
+ sprintf( buffer, "slt %s,%s,%s", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RS( op ) ], s_cpugenreg[ INS_RT( op ) ] );
+ break;
+ case FUNCT_SLTU:
+ sprintf( buffer, "sltu %s,%s,%s", s_cpugenreg[ INS_RD( op ) ], s_cpugenreg[ INS_RS( op ) ], s_cpugenreg[ INS_RT( op ) ] );
+ break;
+ }
+ break;
+ case OP_REGIMM:
+ switch( INS_RT( op ) )
+ {
+ case RT_BLTZ:
+ sprintf( buffer, "bltz %s,$%08x", s_cpugenreg[ INS_RS( op ) ], pc + 4 + ( MIPS_WORD_EXTEND( INS_IMMEDIATE( op ) ) << 2 ) );
+ break;
+ case RT_BGEZ:
+ sprintf( buffer, "bgez %s,$%08x", s_cpugenreg[ INS_RS( op ) ], pc + 4 + ( MIPS_WORD_EXTEND( INS_IMMEDIATE( op ) ) << 2 ) );
+ break;
+ case RT_BLTZAL:
+ sprintf( buffer, "bltzal %s,$%08x", s_cpugenreg[ INS_RS( op ) ], pc + 4 + ( MIPS_WORD_EXTEND( INS_IMMEDIATE( op ) ) << 2 ) );
+ break;
+ case RT_BGEZAL:
+ sprintf( buffer, "bgezal %s,$%08x", s_cpugenreg[ INS_RS( op ) ], pc + 4 + ( MIPS_WORD_EXTEND( INS_IMMEDIATE( op ) ) << 2 ) );
+ break;
+ }
+ break;
+ case OP_J:
+ sprintf( buffer, "j $%08x", ( ( pc + 4 ) & 0xF0000000 ) + ( INS_TARGET( op ) << 2 ) );
+ break;
+ case OP_JAL:
+ sprintf( buffer, "jal $%08x", ( ( pc + 4 ) & 0xF0000000 ) + ( INS_TARGET( op ) << 2 ) );
+ break;
+ case OP_BEQ:
+ sprintf( buffer, "beq %s,%s,$%08x", s_cpugenreg[ INS_RS( op ) ], s_cpugenreg[ INS_RT( op ) ], pc + 4 + ( MIPS_WORD_EXTEND( INS_IMMEDIATE( op ) ) << 2 ) );
+ break;
+ case OP_BNE:
+ sprintf( buffer, "bne %s,%s,$%08x", s_cpugenreg[ INS_RS( op ) ], s_cpugenreg[ INS_RT( op ) ], pc + 4 + ( MIPS_WORD_EXTEND( INS_IMMEDIATE( op ) ) << 2 ) );
+ break;
+ case OP_BLEZ:
+ if( INS_RT( op ) == 0 )
+ {
+ sprintf( buffer, "blez %s,$%08x", s_cpugenreg[ INS_RS( op ) ], pc + 4 + ( MIPS_WORD_EXTEND( INS_IMMEDIATE( op ) ) << 2 ) );
+ }
+ break;
+ case OP_BGTZ:
+ if( INS_RT( op ) == 0 )
+ {
+ sprintf( buffer, "bgtz %s,$%08x", s_cpugenreg[ INS_RS( op ) ], pc + 4 + ( MIPS_WORD_EXTEND( INS_IMMEDIATE( op ) ) << 2 ) );
+ }
+ break;
+ case OP_ADDI:
+ sprintf( buffer, "addi %s,%s,%s", s_cpugenreg[ INS_RT( op ) ], s_cpugenreg[ INS_RS( op ) ], make_signed_hex_str_16( INS_IMMEDIATE( op ) ) );
+ break;
+ case OP_ADDIU:
+ sprintf( buffer, "addiu %s,%s,%s", s_cpugenreg[ INS_RT( op ) ], s_cpugenreg[ INS_RS( op ) ], make_signed_hex_str_16( INS_IMMEDIATE( op ) ) );
+ break;
+ case OP_SLTI:
+ sprintf( buffer, "slti %s,%s,%s", s_cpugenreg[ INS_RT( op ) ], s_cpugenreg[ INS_RS( op ) ], make_signed_hex_str_16( INS_IMMEDIATE( op ) ) );
+ break;
+ case OP_SLTIU:
+ sprintf( buffer, "sltiu %s,%s,%s", s_cpugenreg[ INS_RT( op ) ], s_cpugenreg[ INS_RS( op ) ], make_signed_hex_str_16( INS_IMMEDIATE( op ) ) );
+ break;
+ case OP_ANDI:
+ sprintf( buffer, "andi %s,%s,$%04x", s_cpugenreg[ INS_RT( op ) ], s_cpugenreg[ INS_RS( op ) ], INS_IMMEDIATE( op ) );
+ break;
+ case OP_ORI:
+ sprintf( buffer, "ori %s,%s,$%04x", s_cpugenreg[ INS_RT( op ) ], s_cpugenreg[ INS_RS( op ) ], INS_IMMEDIATE( op ) );
+ break;
+ case OP_XORI:
+ sprintf( buffer, "xori %s,%s,$%04x", s_cpugenreg[ INS_RT( op ) ], s_cpugenreg[ INS_RS( op ) ], INS_IMMEDIATE( op ) );
+ break;
+ case OP_LUI:
+ sprintf( buffer, "lui %s,$%04x", s_cpugenreg[ INS_RT( op ) ], INS_IMMEDIATE( op ) );
+ break;
+ case OP_COP0:
+ switch( INS_RS( op ) )
+ {
+ case RS_MFC:
+ sprintf( buffer, "mfc0 %s,%s", s_cpugenreg[ INS_RT( op ) ], s_cp0genreg[ INS_RD( op ) ] );
+ break;
+ case RS_MTC:
+ sprintf( buffer, "mtc0 %s,%s", s_cpugenreg[ INS_RT( op ) ], s_cp0genreg[ INS_RD( op ) ] );
+ break;
+ case RS_BC:
+ switch( INS_RT( op ) )
+ {
+ case RT_BCF:
+ sprintf( buffer, "bc0f $%08x", pc + 4 + ( MIPS_WORD_EXTEND( INS_IMMEDIATE( op ) ) << 2 ) );
+ break;
+ case RT_BCT:
+ sprintf( buffer, "bc0t $%08x", pc + 4 + ( MIPS_WORD_EXTEND( INS_IMMEDIATE( op ) ) << 2 ) );
+ break;
+ }
+ break;
+ default:
+ switch( INS_CO( op ) )
+ {
+ case 1:
+ sprintf( buffer, "cop0 $%07x", INS_COFUN( op ) );
+
+ switch( INS_CF( op ) )
+ {
+ case 1:
+ sprintf( buffer, "tlbr" );
+ break;
+ case 4:
+ sprintf( buffer, "tlbwi" );
+ break;
+ case 6:
+ sprintf( buffer, "tlbwr" );
+ break;
+ case 8:
+ sprintf( buffer, "tlbp" );
+ break;
+ case 16:
+ sprintf( buffer, "rfe" );
+ break;
+ }
+ break;
+ }
+ break;
+ }
+ break;
+ case OP_COP1:
+ switch( INS_RS( op ) )
+ {
+ case RS_MFC:
+ sprintf( buffer, "mfc1 %s,%s", s_cpugenreg[ INS_RT( op ) ], s_cp1genreg[ INS_RD( op ) ] );
+ break;
+ case RS_CFC:
+ sprintf( buffer, "cfc1 %s,%s", s_cpugenreg[ INS_RT( op ) ], s_cp1ctlreg[ INS_RD( op ) ] );
+ break;
+ case RS_MTC:
+ sprintf( buffer, "mtc1 %s,%s", s_cpugenreg[ INS_RT( op ) ], s_cp1genreg[ INS_RD( op ) ] );
+ break;
+ case RS_CTC:
+ sprintf( buffer, "ctc1 %s,%s", s_cpugenreg[ INS_RT( op ) ], s_cp1ctlreg[ INS_RD( op ) ] );
+ break;
+ case RS_BC:
+ switch( INS_RT( op ) )
+ {
+ case RT_BCF:
+ sprintf( buffer, "bc1f $%08x", pc + 4 + ( MIPS_WORD_EXTEND( INS_IMMEDIATE( op ) ) << 2 ) );
+ break;
+ case RT_BCT:
+ sprintf( buffer, "bc1t $%08x", pc + 4 + ( MIPS_WORD_EXTEND( INS_IMMEDIATE( op ) ) << 2 ) );
+ break;
+ }
+ break;
+ default:
+ switch( INS_CO( op ) )
+ {
+ case 1:
+ sprintf( buffer, "cop1 $%07x", INS_COFUN( op ) );
+ break;
+ }
+ break;
+ }
+ break;
+ case OP_COP2:
+ switch( INS_RS( op ) )
+ {
+ case RS_MFC:
+ sprintf( buffer, "mfc2 %s,%s", s_cpugenreg[ INS_RT( op ) ], s_cp2genreg[ INS_RD( op ) ] );
+ break;
+ case RS_CFC:
+ sprintf( buffer, "cfc2 %s,%s", s_cpugenreg[ INS_RT( op ) ], s_cp2ctlreg[ INS_RD( op ) ] );
+ break;
+ case RS_MTC:
+ sprintf( buffer, "mtc2 %s,%s", s_cpugenreg[ INS_RT( op ) ], s_cp2genreg[ INS_RD( op ) ] );
+ break;
+ case RS_CTC:
+ sprintf( buffer, "ctc2 %s,%s", s_cpugenreg[ INS_RT( op ) ], s_cp2ctlreg[ INS_RD( op ) ] );
+ break;
+ case RS_BC:
+ switch( INS_RT( op ) )
+ {
+ case RT_BCF:
+ sprintf( buffer, "bc2f $%08x", pc + 4 + ( MIPS_WORD_EXTEND( INS_IMMEDIATE( op ) ) << 2 ) );
+ break;
+ case RT_BCT:
+ sprintf( buffer, "bc2t $%08x", pc + 4 + ( MIPS_WORD_EXTEND( INS_IMMEDIATE( op ) ) << 2 ) );
+ break;
+ }
+ break;
+ default:
+ switch( INS_CO( op ) )
+ {
+ case 1:
+ sprintf( buffer, "cop2 $%07x", INS_COFUN( op ) );
+
+ switch( GTE_FUNCT( op ) )
+ {
+ case 0x01:
+ if( INS_COFUN( op ) == 0x0180001 )
+ {
+ sprintf( buffer, "rtps" );
+ }
+ break;
+ case 0x06:
+ if( INS_COFUN( op ) == 0x0400006 ||
+ INS_COFUN( op ) == 0x1400006 ||
+ INS_COFUN( op ) == 0x0155cc6 )
+ {
+ sprintf( buffer, "nclip" );
+ }
+ break;
+ case 0x0c:
+ if( GTE_OP( op ) == 0x17 )
+ {
+ sprintf( buffer, "op%s", s_gtesf[ GTE_SF( op ) ] );
+ }
+ break;
+ case 0x10:
+ if( INS_COFUN( op ) == 0x0780010 )
+ {
+ sprintf( buffer, "dpcs" );
+ }
+ break;
+ case 0x11:
+ if( INS_COFUN( op ) == 0x0980011 )
+ {
+ sprintf( buffer, "intpl" );
+ }
+ break;
+ case 0x12:
+ if( GTE_OP( op ) == 0x04 )
+ {
+ sprintf( buffer, "mvmva%s %s + %s * %s (lm=%s)",
+ s_gtesf[ GTE_SF( op ) ], s_gtecv[ GTE_CV( op ) ], s_gtemx[ GTE_MX( op ) ],
+ s_gtev[ GTE_V( op ) ], s_gtelm[ GTE_LM( op ) ] );
+ }
+ break;
+ case 0x13:
+ if( INS_COFUN( op ) == 0x0e80413 )
+ {
+ sprintf( buffer, "ncds" );
+ }
+ break;
+ case 0x14:
+ if( INS_COFUN( op ) == 0x1280414 )
+ {
+ sprintf( buffer, "cdp" );
+ }
+ break;
+ case 0x16:
+ if( INS_COFUN( op ) == 0x0f80416 )
+ {
+ sprintf( buffer, "ncdt" );
+ }
+ break;
+ case 0x1b:
+ if( INS_COFUN( op ) == 0x108041b )
+ {
+ sprintf( buffer, "nccs" );
+ }
+ break;
+ case 0x1c:
+ if( INS_COFUN( op ) == 0x138041c )
+ {
+ sprintf( buffer, "cc" );
+ }
+ break;
+ case 0x1e:
+ if( INS_COFUN( op ) == 0x0c8041e )
+ {
+ sprintf( buffer, "ncs" );
+ }
+ break;
+ case 0x20:
+ if( INS_COFUN( op ) == 0x0d80420 )
+ {
+ sprintf( buffer, "nct" );
+ }
+ break;
+ case 0x28:
+ if( GTE_OP( op ) == 0x0a && GTE_LM( op ) == 1 )
+ {
+ sprintf( buffer, "sqr%s", s_gtesf[ GTE_SF( op ) ] );
+ }
+ break;
+ case 0x29:
+ if( INS_COFUN( op ) == 0x0680029 )
+ {
+ sprintf( buffer, "dcpl" );
+ }
+ break;
+ case 0x2a:
+ if( INS_COFUN( op ) == 0x0f8002a )
+ {
+ sprintf( buffer, "dpct" );
+ }
+ break;
+ case 0x2d:
+ if( INS_COFUN( op ) == 0x158002d )
+ {
+ sprintf( buffer, "avsz3" );
+ }
+ break;
+ case 0x2e:
+ if( INS_COFUN( op ) == 0x168002e )
+ {
+ sprintf( buffer, "avsz4" );
+ }
+ break;
+ case 0x30:
+ if( INS_COFUN( op ) == 0x0280030 )
+ {
+ sprintf( buffer, "rtpt" );
+ }
+ break;
+ case 0x3d:
+ if( GTE_OP( op ) == 0x09 ||
+ GTE_OP( op ) == 0x19 )
+ {
+ sprintf( buffer, "gpf%s", s_gtesf[ GTE_SF( op ) ] );
+ }
+ break;
+ case 0x3e:
+ if( GTE_OP( op ) == 0x1a )
+ {
+ sprintf( buffer, "gpl%s", s_gtesf[ GTE_SF( op ) ] );
+ }
+ break;
+ case 0x3f:
+ if( INS_COFUN( op ) == 0x108043f ||
+ INS_COFUN( op ) == 0x118043f )
+ {
+ sprintf( buffer, "ncct" );
+ }
+ break;
+ }
+ }
+ break;
+ }
+ break;
+ case OP_LB:
+ sprintf( buffer, "lb %s,%s", s_cpugenreg[ INS_RT( op ) ], make_address( pc, op ) );
+ break;
+ case OP_LH:
+ sprintf( buffer, "lh %s,%s", s_cpugenreg[ INS_RT( op ) ], make_address( pc, op ) );
+ break;
+ case OP_LWL:
+ sprintf( buffer, "lwl %s,%s", s_cpugenreg[ INS_RT( op ) ], make_address( pc, op ) );
+ break;
+ case OP_LW:
+ sprintf( buffer, "lw %s,%s", s_cpugenreg[ INS_RT( op ) ], make_address( pc, op ) );
+ break;
+ case OP_LBU:
+ sprintf( buffer, "lbu %s,%s", s_cpugenreg[ INS_RT( op ) ], make_address( pc, op ) );
+ break;
+ case OP_LHU:
+ sprintf( buffer, "lhu %s,%s", s_cpugenreg[ INS_RT( op ) ], make_address( pc, op ) );
+ break;
+ case OP_LWR:
+ sprintf( buffer, "lwr %s,%s", s_cpugenreg[ INS_RT( op ) ], make_address( pc, op ) );
+ break;
+ case OP_SB:
+ sprintf( buffer, "sb %s,%s", s_cpugenreg[ INS_RT( op ) ], make_address( pc, op ) );
+ break;
+ case OP_SH:
+ sprintf( buffer, "sh %s,%s", s_cpugenreg[ INS_RT( op ) ], make_address( pc, op ) );
+ break;
+ case OP_SWL:
+ sprintf( buffer, "swl %s,%s", s_cpugenreg[ INS_RT( op ) ], make_address( pc, op ) );
+ break;
+ case OP_SW:
+ sprintf( buffer, "sw %s,%s", s_cpugenreg[ INS_RT( op ) ], make_address( pc, op ) );
+ break;
+ case OP_SWR:
+ sprintf( buffer, "swr %s,%s", s_cpugenreg[ INS_RT( op ) ], make_address( pc, op ) );
+ break;
+ case OP_LWC1:
+ sprintf( buffer, "lwc1 %s,%s", s_cp1genreg[ INS_RT( op ) ], make_address( pc, op ) );
+ break;
+ case OP_LWC2:
+ sprintf( buffer, "lwc2 %s,%s", s_cp2genreg[ INS_RT( op ) ], make_address( pc, op ) );
+ break;
+ case OP_SWC1:
+ sprintf( buffer, "swc1 %s,%s", s_cp1genreg[ INS_RT( op ) ], make_address( pc, op ) );
+ break;
+ case OP_SWC2:
+ sprintf( buffer, "swc2 %s,%s", s_cp2genreg[ INS_RT( op ) ], make_address( pc, op ) );
+ break;
+ }
+ return ( opram - oldopram ) | DASMFLAG_SUPPORTED;
+}