In the house keeping section of an MVS assembly language program, like the one below
STM R14,R12,12(R13)
BASR R12,R0
USING *,R12,R11
LA R11,2048
LA R11,2048(R11,R12)
....
....
1. What if BASR R12,R0 IS NOT PRECEDE USING *,R12,R11?
2. USING (base address), REGISTER
does USING directive says assembler to treat particular Register as a base register with the mentioned base address..in the above case * i.e current location counter..well if that is the case why we need BASR R12,R0 ?
3. What if I write like
STM R14,R12,12(R13)
BASR R12,R0
LA R11,2048
LA R11,2048(R11,R12)
USING *,R12,R11
there is no address resolution being calculated in both LA statements so is it a right way to set Base register?..will there be any issues with Domain regarding R11 and R12?
- 0 Answers
- 1625 Views
- I also Faced
- E-Mail Answers
No Answer is Posted For this Question
Be the First to Post Answer
How do you initialize a register to 0000?
How to pass instream data in sysin with Assembler?
how to produce SOC7 abend
How do you round the addition or subtraction of two numbers in assembler?
What does LA R3,R3 ?
Can we use MVC instruction to move pack field to pack field....which instruction you will use and why ?
Why do we use "drop"?
How to initialize 20,000 bytes in the Assembler..
explain about maximum displacement and how to cross this limit?
Ap wkur,=p5 where wkur is a label?
How do you round the addition or subtraction of two numbers in assembler? what does the following code do? AP WKUR,=P'5' where WKUR is a label
What is maximum displacement?
COBOL 
