Siemens CPU 948 - Page 95

Examples of load and
transfer operations
Example 1:
Fig. 3-6 illustrates loading/transferring a byte, word or double word
from/to a memory area organized in
bytes (PII, PIQ, flags, I/O).
:L IB i load byte i of the PII into ACCU-1-LL
:L IW j load bytes j and j+1 of the PII into ACCU-1-L
:L FD k load flag bytes k to k+3 in ACCU 1
ACCU 1
ACCU 1
ACCU 1
j
j+1
i
k
k+1
k+2
k+3
31 23 15 7 0
31 23 15 7 0
31 23 15 7 0
k+1 k+2 k+3
00jj+1
000i
70
Addresses
in
ascending
order
k
1) 1)
1) 1)
1)
LIBi
TIBi
TIWj
LIWj
TFDk
LFDk
1)
only with load operations
Fig. 3-6 Load and transfer operations in a byte-oriented memory area
Basic Operations
CPU 948 Programming Guide
C79000-G8576-C848-04
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