[Coco] hard disk performance

[Gene Heskett]

On Friday 26 September 2008, Robert Gault wrote:
>PS.
>
>I've assumed that the limiting factor is the speed of the hard drive
>system, not megaread. The code for megaread follows
>
>ReadK    equ   1024       1024K is 1 megabyte (modify as desired)
>
>          mod   eom,name,tylg,atrv,start,size
>
>          org   0
>KiloBuff rmb   $0400
>          rmb   200        stack space
>size     equ   .
>
>name     fcs   /MegaRead/
>          fcb   edition
>
>start    ldx   #ReadK
>loop     pshs  x          save counter
>          leax  KiloBuff,u point (X) to buffer
>          ldy   #$0400     read 1K
>          clra             std input
>          os9   I$Read
>          bcs   eofchk
>          puls  x          recover counter
>          leax  -1,x       done yet?
>          bne   loop       no, go get another 1K
>          bra   exitok     yes, exit
>eofchk   cmpb  #E$EOF     end of media?
>          bne   exit       no, a real error
>exitok   clrb
>exit     os9   F$Exit
>
>          emod
>eom      equ   *
>          end

I see this version of megaread uses stdin. I think I have a version that takes 
the descriptor string and opens it for reading.  I *think* that may be 
faster.  I'm logged in, maybe I can find it.  Yup, it even queries you for 
which drive to read.  But the change in the date t syntax to date -t prevents 
getting the seconds out of its display.

Always something...

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-- 
Cheers, Gene
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