1. Re: CPU Registers
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Hi everybody!
Some of you asked for an explenation of the CPU Registers. I'm not an
ASM Guru but
I hope this helps a little!
CPU Registers
The CPU has 4 internal registers, each one of 16 bits. The first four,
AX,
BX, CX, and DX are general use registers and can also be used as 8 bit
registers, if used in such a way it is necessary to refer to them for
example as: AH and AL, which are the high and low bytes of the AX
register.
This nomenclature is also applicable to the BX, CX, and DX registers.
The registers known by their specific names:
AX Accumulator
BX Base register
CX Counting register
DX Data register
DS Data segment register
ES Extra segment register
SS Battery segment register
CS Code segment register
BP Base pointers register
SI Source index register
DI Destiny index register
SP Battery pointer register
IP Next instruction pointer register
F Flag register
See ya!
Da Guru
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<HTML>
Hi everybody!
<BR>Some of you asked for an explenation of the CPU Registers. I'm not
an ASM Guru but
<BR>I hope this helps a little!<B><U></U></B>
<P><B><U>CPU Registers</U></B>
<BR>The CPU has 4 internal registers, each one of 16 bits. The first four,
AX,
<BR>BX, CX, and DX are general use registers and can also be used as 8
bit
<BR>registers, if used in such a way it is necessary to refer to them for
<BR>example as: AH and AL, which are the high and low bytes of the AX register.
<BR>This nomenclature is also applicable to the BX, CX, and DX registers.
<P>The registers known by their specific names:
<P>AX Accumulator
<BR>BX Base register
<BR>CX Counting register
<BR>DX Data register
<BR>DS Data segment register
<BR>ES Extra segment register
<BR>SS Battery segment register
<BR>CS Code segment register
<BR>BP Base pointers register
<BR>SI Source index register
<BR>DI Destiny index register
<BR>SP Battery pointer register
<BR>IP Next instruction pointer register
<BR>F Flag register
<P>See ya!
<I>Da Guru</I></HTML>
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