Assembling

[Bruce]

From: "Mike Turner/ENGR/HQ/KEMET/US" <MikeTurner at kemet.com>
Subject: Re: Assembling 
> See insertions below.
> "Bruce" <nacelp at bright.net>@diy-efi.org on 08/27/2000 11:46:22 AM
> Please respond to gmecm at diy-efi.org
> Sent by:  owner-gmecm at diy-efi.org
> To:   <gmecm at diy-efi.org>
> Subject:  Assembling
> I keep getting numerous:
> Invalid Opcode / Psuedo-Op  error messages.
> In the following if get that error code for BD, D6, 3D, 05, and 25.   I'm
> missing something, but just don't understand what.
> LC7C2: BD FC00 ;    JSR    LKUP2DAF
> ;The BD FC00 is the hex output of the assembler for the JSR LKUP2DAF. The
> BD FC00 should ;not be reassembled. Ditto the next 3 lines.
>              D6 A4      ;    LDA B  AECOOLF
> ;D6 A4 is a load direct accumulator a from address A4.
>              3D           ;     MUL
> ;3D is the output of the assembler for the multiply instruction.
>              05            ;     ASL D
> ; 25 04 is the output of the assmelber for the branch on carry set. The
> target address
> ; is 4 bytes beyond the 2405.
>       25 04(37CF)   ;     BCS    LV8AE3
> And what does the (37CF), mean?
> ; The 37cf is the target address of the branch instruction. The BCS will
> goto address 37cf for the next instruction.

Thanks!.
I just realized a couple other things I'd gotten wrong.
Bruce
  This is sooo much fun LOL


----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org