IAI America S-SEL-E - Manual (Page 192)

Page 187
Chapter 4. Programming
Expansion
(AND·OR)
Input
(Input·Output·Flag)
Command · Statement
Post
(Output · Flag
Command Operand 1 Operand 2
WSXX Column No. Column No · Literal character
WSXX (Selected when true Character)
Function: This is used between the SLCT ~ EDSL commands. Compares the character string in the columns in Operand 1
and Operand 2. If the conditions are met, then the code following the WSXX will be executed up to the next
WSXX. If the conditions are not met, the program will go to the next WSXX command or OTHE command or
EDSL. Comparison is made based on the length designated in the SLEN command. When Operand 2 is a literal
character, that is the length that is executed.
WSXX
EQ ............ Operand 1 = Operand 2
NE ............ Operand 1
≠
Operand 2
Example: SLEN 3
SCPY 1 ‘ABC’
LET 1 3
:
SLCT
WSEQ 1‘XYZ’
:

:
WSGT 2
*1
:
‚
:
OTHE
:
ƒ
:
EDSL
:
„
:
Sets the number of characters to be compared to 3.
Assigns ‘ABC’ to column 1.
Assigns 3 to variable 1.
Branches.
If columns 1~3 are ‘XYZ’,
 is executed but since columns 1~3
are ‘ABC’, this is not executed.
If the number of characters designated by SLEN from column 2 are
the same as the contents in the column indicated by variable 1, then
‚ is executed.
If no conditions are fulfilled, this is executed. Since
‚ was
executed,
ƒ will not be executed.
When one of the conditions is met and that command is performed,
processing moves to EDSL. In this example,
‚ and „ are
executed.
* When there is a possibility of several conditions being met, the WXXX command that appears first goes into effect and the
commands that follow are not executed.
When conditions are demanding, list the ones with the highest priority first.