diff options
Diffstat (limited to '68kinst.c')
-rw-r--r-- | 68kinst.c | 12 |
1 files changed, 4 insertions, 8 deletions
@@ -683,26 +683,22 @@ uint16_t * m68k_decode(uint16_t * istream, m68kinst * decoded, uint32_t address) if (size == 0x3) { //DBcc, TRAPcc or Scc m68k_decode_cond(*istream, decoded); - switch ((*istream >> 3) & 0x7) - { - case 1: //DBcc + if (((*istream >> 3) & 0x7) == 1) { decoded->op = M68K_DBCC; decoded->src.addr_mode = MODE_IMMEDIATE; decoded->dst.addr_mode = MODE_REG; decoded->dst.params.regs.pri = *istream & 0x7; decoded->src.params.immed = sign_extend16(*(++istream)); - break; - case 7: //TRAPcc + } else if(((*istream >> 3) & 0x7) == 1 && (*istream & 0x7) > 1 && (*istream & 0x7) < 5) { #ifdef M68020 decoded->op = M68K_TRAPCC; decoded->src.addr_mode = MODE_IMMEDIATE; //TODO: Figure out what to do with OPMODE and optional extention words #endif - break; - default: //Scc + } else { decoded->op = M68K_SCC; + decoded->extra.cond = (*istream >> 8) & 0xF; istream = m68k_decode_op(istream, OPSIZE_BYTE, &(decoded->dst)); - break; } } else { //ADDQ, SUBQ |