IMM_4
{"mov.b",{A_DISP_REG_M,A_R0},{HEX_8,HEX_4,REG_M,IMM_4}},
{"mov.b",{A_R0,A_DISP_REG_M},{HEX_8,HEX_0,REG_M,IMM_4}},
case IMM_4: