IMMREG
{"ADDI",0x0B20, IMMREG, {EXPR, REG, OPTSPEC,0}},
{"MOVI",0x09E0, IMMREG, {EXPR, REG, OPTSPEC,0}},
class = IMMREG;
case IMMREG: /* immediate, reg */
#define IMMREGC (IMMREG|IMMCOM)
#define LIMREG (IMMREG|NOIMM16)