diff options
Diffstat (limited to 'src/devices/cpu/scmp/scmpdasm.cpp')
-rw-r--r-- | src/devices/cpu/scmp/scmpdasm.cpp | 148 |
1 files changed, 79 insertions, 69 deletions
diff --git a/src/devices/cpu/scmp/scmpdasm.cpp b/src/devices/cpu/scmp/scmpdasm.cpp index 07ddec17e67..359c819bdda 100644 --- a/src/devices/cpu/scmp/scmpdasm.cpp +++ b/src/devices/cpu/scmp/scmpdasm.cpp @@ -13,7 +13,7 @@ #define OP(A) oprom[(A) - PC] #define ARG(A) opram[(A) - PC] -CPU_DISASSEMBLE( scmp ) +static offs_t internal_disasm_scmp(cpu_device *device, std::ostream &stream, offs_t pc, const uint8_t *oprom, const uint8_t *opram, int options) { unsigned PC = pc; uint8_t op = OP(pc++); @@ -38,116 +38,126 @@ CPU_DISASSEMBLE( scmp ) switch (op) { // Memory Reference Instructions - case 0xc0 : sprintf (buffer,"ld %s",as); break; + case 0xc0 : util::stream_format(stream, "ld %s",as); break; case 0xc1 : case 0xc2 : case 0xc3 : - sprintf (buffer,"ld %s",aspr);break; + util::stream_format(stream, "ld %s",aspr);break; case 0xc5 : case 0xc6 : case 0xc7 : - sprintf (buffer,"ld @%s",aspr); break; - case 0xc8 : sprintf (buffer,"st %s",as); break; + util::stream_format(stream, "ld @%s",aspr); break; + case 0xc8 : util::stream_format(stream, "st %s",as); break; case 0xc9 : case 0xca : case 0xcb : - sprintf (buffer,"st %s",aspr);break; + util::stream_format(stream, "st %s",aspr);break; case 0xcd : case 0xce : case 0xcf : - sprintf (buffer,"st @%s",aspr); break; - case 0xd0 : sprintf (buffer,"and %s",as); break; + util::stream_format(stream, "st @%s",aspr); break; + case 0xd0 : util::stream_format(stream, "and %s",as); break; case 0xd1 : case 0xd2 : case 0xd3 : - sprintf (buffer,"and %s",aspr);break; + util::stream_format(stream, "and %s",aspr);break; case 0xd5 : case 0xd6 : case 0xd7 : - sprintf (buffer,"and @%s",aspr); break; - case 0xd8 : sprintf (buffer,"or %s",as); break; + util::stream_format(stream, "and @%s",aspr); break; + case 0xd8 : util::stream_format(stream, "or %s",as); break; case 0xd9 : case 0xda : case 0xdb : - sprintf (buffer,"or %s",aspr);break; + util::stream_format(stream, "or %s",aspr);break; case 0xdd : case 0xde : case 0xdf : - sprintf (buffer,"or @%s",aspr); break; - case 0xe0 : sprintf (buffer,"xor %s",as); break; + util::stream_format(stream, "or @%s",aspr); break; + case 0xe0 : util::stream_format(stream, "xor %s",as); break; case 0xe1 : case 0xe2 : case 0xe3 : - sprintf (buffer,"xor %s",aspr);break; + util::stream_format(stream, "xor %s",aspr);break; case 0xe5 : case 0xe6 : case 0xe7 : - sprintf (buffer,"xor @%s",aspr); break; - case 0xe8 : sprintf (buffer,"dad %s",as); break; + util::stream_format(stream, "xor @%s",aspr); break; + case 0xe8 : util::stream_format(stream, "dad %s",as); break; case 0xe9 : case 0xea : case 0xeb : - sprintf (buffer,"dad %s",aspr);break; + util::stream_format(stream, "dad %s",aspr);break; case 0xed : case 0xee : case 0xef : - sprintf (buffer,"dad @%s",aspr); break; - case 0xf0 : sprintf (buffer,"add %s",as); break; + util::stream_format(stream, "dad @%s",aspr); break; + case 0xf0 : util::stream_format(stream, "add %s",as); break; case 0xf1 : case 0xf2 : case 0xf3 : - sprintf (buffer,"add %s",aspr);break; + util::stream_format(stream, "add %s",aspr);break; case 0xf5 : case 0xf6 : case 0xf7 : - sprintf (buffer,"add @%s",aspr); break; - case 0xf8 : sprintf (buffer,"cad %s",as); break; + util::stream_format(stream, "add @%s",aspr); break; + case 0xf8 : util::stream_format(stream, "cad %s",as); break; case 0xf9 : case 0xfa : case 0xfb : - sprintf (buffer,"cad %s",aspr);break; + util::stream_format(stream, "cad %s",aspr);break; case 0xfd : case 0xfe : case 0xff : - sprintf (buffer,"cad @%s",aspr); break; + util::stream_format(stream, "cad @%s",aspr); break; // Memory Increment/Decrement Instructions case 0xa8 : case 0xa9 : case 0xaa : case 0xab : - sprintf (buffer,"ild %s",aspr); break; + util::stream_format(stream, "ild %s",aspr); break; case 0xb8 : case 0xb9 : case 0xba : case 0xbb : - sprintf (buffer,"dld %s",aspr); break; + util::stream_format(stream, "dld %s",aspr); break; // Immediate Instructions - case 0xc4 : sprintf (buffer,"ldi $%02x",arg); break; - case 0xd4 : sprintf (buffer,"ani $%02x",arg); break; - case 0xdc : sprintf (buffer,"ori $%02x",arg); break; - case 0xe4 : sprintf (buffer,"xri $%02x",arg); break; - case 0xec : sprintf (buffer,"dai $%02x",arg); break; - case 0xf4 : sprintf (buffer,"adi $%02x",arg); break; - case 0xfc : sprintf (buffer,"cai $%02x",arg); break; + case 0xc4 : util::stream_format(stream, "ldi $%02x",arg); break; + case 0xd4 : util::stream_format(stream, "ani $%02x",arg); break; + case 0xdc : util::stream_format(stream, "ori $%02x",arg); break; + case 0xe4 : util::stream_format(stream, "xri $%02x",arg); break; + case 0xec : util::stream_format(stream, "dai $%02x",arg); break; + case 0xf4 : util::stream_format(stream, "adi $%02x",arg); break; + case 0xfc : util::stream_format(stream, "cai $%02x",arg); break; // Transfer Instructions - case 0x90 : sprintf (buffer,"jmp %s",as);break; + case 0x90 : util::stream_format(stream, "jmp %s",as);break; case 0x91 : case 0x92 : case 0x93 : - sprintf (buffer,"jmp %s",aspr);break; - case 0x94 : sprintf (buffer,"jp %s",as); break; + util::stream_format(stream, "jmp %s",aspr);break; + case 0x94 : util::stream_format(stream, "jp %s",as); break; case 0x95 : case 0x96 : case 0x97 : - sprintf (buffer,"jp %s",aspr); break; - case 0x98 : sprintf (buffer,"jz %s",as); break; + util::stream_format(stream, "jp %s",aspr); break; + case 0x98 : util::stream_format(stream, "jz %s",as); break; case 0x99 : case 0x9a : case 0x9b : - sprintf (buffer,"jz %s",aspr); break; - case 0x9c : sprintf (buffer,"jnz %s",as); break; + util::stream_format(stream, "jz %s",aspr); break; + case 0x9c : util::stream_format(stream, "jnz %s",as); break; case 0x9d : case 0x9e : case 0x9f : - sprintf (buffer,"jnz %s",aspr); break; + util::stream_format(stream, "jnz %s",aspr); break; // Double-Byte Miscellaneous Instructions - case 0x8f: sprintf (buffer,"dly $%02x",arg); break; + case 0x8f: util::stream_format(stream, "dly $%02x",arg); break; // Others are illegal - default : sprintf (buffer,"illegal"); pc--; break; // Illegal we consider without param + default : util::stream_format(stream, "illegal"); pc--; break; // Illegal we consider without param } } else { // one byte instructions switch (op) { // Extension Register Instructions - case 0x40: sprintf (buffer,"lde"); break; - case 0x01: sprintf (buffer,"xae"); break; - case 0x50: sprintf (buffer,"ane"); break; - case 0x58: sprintf (buffer,"ore"); break; - case 0x60: sprintf (buffer,"xre"); break; - case 0x68: sprintf (buffer,"dae"); break; - case 0x70: sprintf (buffer,"ade"); break; - case 0x78: sprintf (buffer,"cae"); break; + case 0x40: util::stream_format(stream, "lde"); break; + case 0x01: util::stream_format(stream, "xae"); break; + case 0x50: util::stream_format(stream, "ane"); break; + case 0x58: util::stream_format(stream, "ore"); break; + case 0x60: util::stream_format(stream, "xre"); break; + case 0x68: util::stream_format(stream, "dae"); break; + case 0x70: util::stream_format(stream, "ade"); break; + case 0x78: util::stream_format(stream, "cae"); break; // Pointer Register Move Instructions case 0x30: case 0x31 :case 0x32: case 0x33: - sprintf (buffer,"xpal %d",ptr); break; + util::stream_format(stream, "xpal %d",ptr); break; case 0x34: case 0x35 :case 0x36: case 0x37: - sprintf (buffer,"xpah %d",ptr); break; + util::stream_format(stream, "xpah %d",ptr); break; case 0x3c: case 0x3d :case 0x3e: case 0x3f: - sprintf (buffer,"xppc %d",ptr); break; + util::stream_format(stream, "xppc %d",ptr); break; // Shift, Rotate, Serial I/O Instructions - case 0x19: sprintf (buffer,"sio"); break; - case 0x1c: sprintf (buffer,"sr"); break; - case 0x1d: sprintf (buffer,"srl"); break; - case 0x1e: sprintf (buffer,"rr"); break; - case 0x1f: sprintf (buffer,"rrl"); break; + case 0x19: util::stream_format(stream, "sio"); break; + case 0x1c: util::stream_format(stream, "sr"); break; + case 0x1d: util::stream_format(stream, "srl"); break; + case 0x1e: util::stream_format(stream, "rr"); break; + case 0x1f: util::stream_format(stream, "rrl"); break; // Single Byte Miscellaneous Instructions - case 0x00: sprintf (buffer,"halt"); break; - case 0x02: sprintf (buffer,"ccl"); break; - case 0x03: sprintf (buffer,"scl"); break; - case 0x04: sprintf (buffer,"dint"); break; - case 0x05: sprintf (buffer,"ien"); break; - case 0x06: sprintf (buffer,"csa"); break; - case 0x07: sprintf (buffer,"cas"); break; - case 0x08: sprintf (buffer,"nop"); break; + case 0x00: util::stream_format(stream, "halt"); break; + case 0x02: util::stream_format(stream, "ccl"); break; + case 0x03: util::stream_format(stream, "scl"); break; + case 0x04: util::stream_format(stream, "dint"); break; + case 0x05: util::stream_format(stream, "ien"); break; + case 0x06: util::stream_format(stream, "csa"); break; + case 0x07: util::stream_format(stream, "cas"); break; + case 0x08: util::stream_format(stream, "nop"); break; // Others are illegal - default : sprintf (buffer,"illegal"); break; + default : util::stream_format(stream, "illegal"); break; } } return (pc - PC); } + + +CPU_DISASSEMBLE(scmp) +{ + std::ostringstream stream; + offs_t result = internal_disasm_scmp(device, stream, pc, oprom, opram, options); + std::string stream_str = stream.str(); + strcpy(buffer, stream_str.c_str()); + return result; +} |