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Explain the difference between various read and find statement?
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What is icm instruction?
HOW MANY MAXIMUM BASE REGISTERS WE CAN HAVE IN A PROGRAM AND ALSO HOW MANY MAXIMUM BASE REGISTERS WE CAN HAVE IN A SINGLE PROGRAM.
WHAT WILL HAPPEN IF WE DROP THE BASE REGISTER IN THE PGM WHICH CONTAINS ONLY ONE BASEREG?
Write the fetch cycle and execute cycle for following instructions:JMPNZ (jump to the given address if the accumulator not equal to zero) RET(return from a subroutine) ADB (add the contents of register B to the accumulator and save result in the accumulator).
What does the following code do? Ap wkur,=p5 where wkur is a label?
Why can only 256 bytes be moved from one address to another in a MVC?
How to pass instream data in sysin with Assembler?
registers(0-15) ,where they are going be resides., does that mean here is it resides whether real or virtual memory? and why? then why we are assign even registers(0 to 6) for FP operations????
Can we use MVC instruction to move pack field to pack field....which instruction you will use and why ?
explain icm instruction?
What is base register?
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?
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