Siemens CPU 948 Programming Manual page 397

Load and transfer
operations on the
global memory organized
in bytes
Error reaction
CPU 948 Programming Guide
C79000-G8576-C848-04
Operations with the Base Address Register (BR Register)
Table 9-9 Operations for access to the global memory organized
in bytes
Operation Operand
LY GB -32768 to
+32767
LY GW -32768 to
+32767
LY GD -32768 to
+32767
TY GB -32768 to
+32767
TY GW -32768 to
+32767
TY GD -32768 to
+32767
1)
ACCU-1-LH and ACCU-1-H are set to '0'.
2)
ACCU-1-H is set to '0'.
3)
ACCU 2 : = ACCU 1
new old
The range of absolute addresses for the load and transfer operations
for the global memory organized in bytes
• • between F 0000H and F FFFFH (LY GB, TY GB),
• • between F 0000H and F FFFEH (LY GW, TY GW)
or
• • between F 0000H and F FFFCH (LY GD, TY GD).
Description
add the specified constant to content
of the BR register and load the byte
addressed in this way in ACCU-1-LL
3)
add the specified constant to content
of the BR register and load the word
addressed in this way in ACCU-1-L
add the specified constant to content
of the BR register and load the double
word addressed in this way in ACCU 1
add the specified constant to content
of the BR register and transfer the
content of ACCU-1-LL to the byte
addressed in this way
add the specified constant to content
of the BR register and transfer the
content of ACCU-1-L to the word
addressed in this way
add the specified constant to content
of the BR register and transfer the
content of ACCU 1 to the double
word addressed in this way
1)
2) 3)
3)
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