"@" 10 bit signed immediate (OP_*_IMM10)
MT ASE usage:
- "!" 1 bit immediate at bit 5
- "$" 1 bit immediate at bit 4
+ "!" 1 bit usermode flag (OP_*_MT_U)
+ "$" 1 bit load high flag (OP_*_MT_H)
"*" 2 bit dsp/smartmips accumulator register (OP_*_MTACC_T)
"&" 2 bit dsp/smartmips accumulator register (OP_*_MTACC_D)
"g" 5 bit coprocessor 1 and 2 destination register (OP_*_RD)