IAI America PSEL - Manual (Page 132)

122
Part 2 Programs
 INB (Read I/O, flag as BCD)
Command, declaration
Extension condition
(LD, A, O, AB, OB)
Input condition
(I/O, flag)
Command,
declaration
Operand 1 Operand 2
Output
(Output, flag)
Optional Optional INB I/O, flag BCD digits CC
[Function] Read the I/O ports or flags from the one specified in operand 1 for the number of digits
specified in operand 2, to variable 99 as a BCD.
15 14 13 12 11 10 9 8 Input port number
ON OFF OFF OFF OFF ON OFF ON
85 Variable 99
(Note 1) A maximum of eight digits (32 bits) can be input.
(Note 2) The number of I/O ports and flags that can be used is 4 x n (digits).
(Note 3) The read data format can be changed using a FMIO command (refer to the section on FMIO
command).
[Example 1] INB 8 2 Read input ports 8 through 15, to variable 99 as a
BCD.
[Example 2] LET 1 8 Assign 8 to variable 1.
LET 2 2 Assign 2 to variable 2.
INB *1 *2 Read the input ports from the content of variable 1
(input port 8) for the content of variable 2 (two digits)
(until input port 15), to variable 99 as a BCD.
Upper digit Lower digit
8 5