What is base register?
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Answer / res
Base register stores starting address of programme. if we want to relocate programme....just need to change base register content.
| Is This Answer Correct ? | 2 Yes | 2 No |
Answer / sysprog
The content of a base register is added to a displacement, and/or to the content of an index register, thereby to determine the address of the source or destination memory location upon which the instruction is to act.
When 0 is specified in the base regester position in an instruction, it is not interpreted by the assembler or the machine as a base register or as referencing register 0; in that position it means no base register for that instruction.
A program base register is used in specifying addesses of memory areas within the program, including instructions and storage areas.
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Answer / anon y mous
This is why you should only hire American programmers that
actually know what they are doing. Enough of the answers
are wrong that it makes me wonder why we think we get our
money's worth when we hire offshore "talent".
Read the IBM z/OS manuals to get the real answer.
| Is This Answer Correct ? | 4 Yes | 5 No |
Answer / x506
In 16-bit mode, the base register, EBX, acts as a general-purpose pointer. Besides the specialized ESI, EDI, and EBP registers, it is the only general-purpose register that can appear in a square-bracket memory access (For example, MOV [BX], AX). In the 32-bit world, however, any register may serve as a memory offset, so the base register is no longer special.
| Is This Answer Correct ? | 1 Yes | 2 No |
Answer / s abbas
It is used to hold a number that can be added or sometimes in subtraction from to the address portion of a computer instruction to form an effective address it is also called index register
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Answer / gul
base register is used to store address of current memory locations during execution.
| Is This Answer Correct ? | 5 Yes | 7 No |
Answer / supriya tiwari
Base register holds the address of current memory locations..
| Is This Answer Correct ? | 0 Yes | 2 No |
Answer / adnan shah
Base registers are the registers which are used for data movements. It has special adressing abilities. It holds that adress of data which tells that where the data was stored before execution.
| Is This Answer Correct ? | 0 Yes | 2 No |
Answer / justin raj
in addition to serving as a general-purpose data
register,base register can be used for computing the data
memory address
| Is This Answer Correct ? | 3 Yes | 6 No |
cobol and assembler access
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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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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).
Explain about house keeping in assembler?
COBOL 
