[Instruction] Contents

Advanced Function InstructionFUN 63 P→HEXCONVERSION OF ASCII CODE TO HEXADECIMAL VALUEFUN 63 P→HEXS : Starting source register.N : Number of ASCII codes to be converted tohexadecimal values.D : The starting register that stores the result(hexadecimal value).S, N, D, can associate with V, Z, P0~P9 to do theindirect addressing application.OperandRangeWX WY WM WS TMR CTR HR IR OR SR ROR DR K XRWX0∣WX240WY0∣WY240WM0∣WM1896WS0∣WS984T0∣T255C0∣C255R0∣R3839R3840∣R3903R3904∣R3967R3968∣R4167R5000∣R8071D0∣D409516-bit+numberP0~P9S ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○N ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ 1~511 ○D ○ ○ ○ ○ ○ ○ ○ ○* ○* ○ ○V、Z• When conversion control “EN” =1 or “EN↑” ( P instruction) changes from 0→1, it will convert the Nsuccessive hexadecimal ASCII character(‘0’~’9’,’A’~’F’) convey by 16 bit registers (Low Byte is effective) intohexadecimal value, and store the result into the register starting with D. Every 4 ASCII code is stored in oneregister. The nibbles of register, which does not involve in the conversion of ASCII code will remainunchanged.• The conversion will not be performed when N is 0 or greater than 511.• When there is ASCII error (neither 30H~39H nor 41H~46H), the output “ERR” is ON.• The main purpose of this instruction is to convert the hexadecimal ASCII character (‘0’~’9’,’A’~’F’), which isreceived by communication port1 or communication port2 from the external ASCII peripherals, to thehexadecimal values that the CPU can process directly.7-43