7-21
Section
BCD Calculation Instructions
465
Example
The following example works much like that for single-word subtraction. In this
example, however, BSET(71) is required to clear the content of DM 0000 and
DM 0001 so that a negative result can be subtracted from 0 (inputting an 8-digit
constant is not possible).
CLC(41)
@SUBL(55)
HR 00
220
DM 0100
CLC(41)
@SUBL(55)
DM 0000
DM 0100
DM 0100
TR 0
25504
HR 0100
00003
25504
HR 0100
First
subtraction
Second
subtraction
Turned ON to indicate
negative result.
@BSET(71)
#0000
DM 0000
DM 0001
00000
LD
00003
00001
OUT
TR
0
00002
CLC(41)
00003
@SUBL(55)
HR
00
220
DM
0100
00004
AND
25504
00005
@BSET(71)
#
0000
DM
0000
DM
0001
00006
CLC(41)
00007
@SUBL(55)
DM
0000
DM
0100
DM
0100
00008
LD
TR
0
00009
LD
25504
00010
OR
HR
0100
00011
AND LD
00012
OUT
HR
0100
Address
Instruction
Operands
Address
Instruction
Operands