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2002 Aug 26 19:15

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Re: [vox] [OT] Learning to program
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Re: [vox] [OT] Learning to program

Well I'm dating myself here, but: IBM 1620 (ferrite core memory!), 
Univac 1108, IBM 370, Motorola 6502, Intel 8086, 80386.  The last
of these I programmed in for about 10 years before bothering to
learn C and its derivatives.  :-)

Of course all of these have pointers, with varying terminology.
Indirection is the ability to reference a memory location which
in turn contains a pointer.  The IBM mainframes didn't use stacks.


-- Rod

On Monday 26 August 2002 06:10 pm, Mark K. Kim wrote:
> On Mon, 26 Aug 2002, Rod Roark wrote:
> > I learned a variety of assembler/machine languages before C,
> > and as a result have no problem understanding concepts such
> > as pointers.
> ==8<--
> Which assembly language did you use?  I know three assembly languages
> (x86, MIPS, 6502) and all of them have some concept of pointers, usually
> in parenthesis, something like:
>    mov ax, (dx)    ; x86... if I remember the syntax correctly
>                    ; (time to read my own assembly tutorial...)
>    lw $1, 0($2)    ; MIPS
>    lda (ptr),y     ; 6502
> but they don't call them "pointers" but "indirect memory access" (or
> something to do with being indirect)...
> -Mark

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