Siemens CPU 948 - Page 130

Operation Operand Function
S ADD BN -128 to
+127
Add a byte constant (fixed point) to ACCU-1-L (includes
sign change)/the condition code in CC 0, CC 1, OV and
OS are not affected! – ACCU-1-H and ACCUs 2 to 4
remain unchanged.
S ADD KF -32 768 to
+32 767
Add a fixed point constant (word) to ACCU-1-L/ the
condition codes in CC 0, CC 1, OV and OS are not
affected! – ACCU-1-H and ACCUs 2 to 4 remain unchanged.
S ADD
1)
DH 0000 0000
to
FFFF FFFF
Add a double word fixed point constant to ACCU 1/the
condition codes in CC 0, CC 1, OV and OS are not affected! –
ACCUs 2 to 4 remain unchanged.
S +D
1)
Add two double word fixed point constants
(ACCU 2 + ACCU 1)/the result can be evaluated
in CC 0/CC 1.
2)
S -D
1)
Subtract two double word fixed point constants
(ACCU 2 - ACCU 1)/the result can be evaluated in CC 0/CC 1.
2)
S TAK Swap the contents of ACCU 1 and ACCU 2
1)
Programming is dependent on the PG type and the release of the PG system software.
2)
For changes in ACCU 2 and ACCU 3: see Section 3.5.1 "Basic Operations/Arithmetic Operations".
Table 3-20 Supplementary arithmetic operations
Supplementary Operations
CPU 948 Programming Guide
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