Re: A86: beginner needs help
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Re: A86: beginner needs help
Thanx
-----Original Message-----
From: Grams Family <grams@netcarrier.com>
To: assembly-86@lists.ticalc.org <assembly-86@lists.ticalc.org>
Date: Saturday, September 20, 1997 9:54 PM
Subject: Re: A86: beginner needs help
>At 03:57 PM 9/20/97 -0400, you wrote:
>>I need some help,
>>
>>I get the following error messages when I assembly this code:
>>
>>label not found (de)
> unused data in MS byte of argument
>>
>>code:
>>
>>#include "asm86.h"
>>#include "ti86asm.inc"
>>
>>.org _asm_exec_ram
>>
>>Start
>> call _clrLCD
>> ld de,Bitmap
>> ld (hl),de ; here is where i get the error messages, why?
>>ret
>>
>>Bitmap:
>> .db %00000000
>> .db %01111110
>> .db %01100110
>> .db %01100110
>> .db %01111110
>> .db %00000000
>>
>>.end
>>
>You're trying to load _two_ bytes - de - into (hl). I don't think you can
>do that, let me check...Nope. So replace ld (hl),de with:
>ld (hl),e
>inc hl
>ld (hl),d
>
>or something like that. Also, make sure you put a space before all
>instructions - like the RET - if you don't, TASM thinks it's a label, and
>it does funny things. And you don't have a colon after Start. But you're
>getting errors because you can't load a register pair into memory all at
>once. So TASM doesn't recognize de as a valid operand for that instruction,
>and looks for it as a label. When it doesn't find a label named de, it
>issues an error message.
>
>--Joshua Grams