diff options
Diffstat (limited to 'trunk/src/emu/cpu/esrip/esripdsm.c')
-rw-r--r-- | trunk/src/emu/cpu/esrip/esripdsm.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/trunk/src/emu/cpu/esrip/esripdsm.c b/trunk/src/emu/cpu/esrip/esripdsm.c new file mode 100644 index 00000000000..84f8882ad72 --- /dev/null +++ b/trunk/src/emu/cpu/esrip/esripdsm.c @@ -0,0 +1,93 @@ +/*************************************************************************** + + esripdsm.c + + Implementation of the Entertainment Sciences + AM29116-based Real Time Image Processor + +***************************************************************************/ + +#include "emu.h" +#include "debugger.h" + + +/*************************************************************************** + DISASSEMBLY HOOK (TODO: FINISH) +***************************************************************************/ + +CPU_DISASSEMBLE( esrip ) +{ +#if 0 + static const char* const jmp_types[] = + { + "JCT", + "JT1", + "JT2", + "JT3", + "JT4", + "JLBRM", + "J#HBLANK", + "JMP", + }; + + static const char* const njmp_types[] = + { + "JNCT", + "JNT1", + "JNT2", + "JNT3", + "JNT4", + "JNLBRM", + "J#HBLANK", + " ", + }; +#endif + + UINT64 inst = BIG_ENDIANIZE_INT64(*(UINT64 *)oprom); + + UINT32 inst_hi = inst >> 32; + UINT32 inst_lo = inst & 0xffffffff; + + UINT16 ins = (inst_hi >> 16) & 0xffff; + UINT8 ctrl = (inst_hi >> 8) & 0xff; + UINT8 jmp_dest = (inst_lo >> 8) & 0xff; + + UINT8 jmp_ctrl = (ctrl >> 3) & 0x1f; + + UINT8 ctrl1 = (inst_lo >> 16) & 0xff; + UINT8 ctrl2 = (inst_lo >> 24) & 0xff; + UINT8 ctrl3 = (inst_hi) & 0xff; + + sprintf(buffer, "%.4x %c%c%c%c %.2x %s%s%s%s%s%s%s%s %c%s%s%s %c%c%c%c%c%c%c%c", + ins, + ctrl & 1 ? 'D' : ' ', + ctrl & 2 ? ' ' : 'Y', + ctrl & 4 ? 'S' : ' ', + (~jmp_ctrl & 0x18) ? 'J' : ' ', + jmp_dest, + ctrl1 & 0x01 ? " " : "I ", + ctrl1 & 0x02 ? " " : "FL", + ctrl1 & 0x04 ? "FE" : " ", + ctrl1 & 0x08 ? " " : "FR", + ctrl1 & 0x10 ? " " : "IL", + ctrl1 & 0x20 ? "IE" : " ", + ctrl1 & 0x40 ? " " : "IR", + ctrl1 & 0x80 ? " " : "IW", + + ctrl2 & 0x80 ? ' ' : 'O', + ctrl2 & 0x40 ? " " : "IXLLD", + ctrl2 & 0x20 ? " " : "IADLD", + ctrl2 & 0x10 ? " " : "SCALD", + + ctrl3 & 0x01 ? ' ' : '0', + ctrl3 & 0x02 ? ' ' : '1', + ctrl3 & 0x04 ? ' ' : '2', + ctrl3 & 0x08 ? ' ' : '3', + ctrl3 & 0x10 ? ' ' : '4', + ctrl3 & 0x20 ? ' ' : '5', + ctrl3 & 0x40 ? ' ' : '6', + ctrl3 & 0x80 ? ' ' : '7' + ); + + return 1 | DASMFLAG_SUPPORTED; +} |