Re: A83: Help with a problem

To: assembly-83@lists.ticalc.org
Subject: Re: A83: Help with a problem
From: Scott Dial <wrath@calc.org>
Date: Wed, 18 Aug 1999 18:30:39 -0500
Organization: ByMe Inc. Technologies \ TCPA
References: <yam7899.995.274448912@mail.telia.com>
Reply-To: assembly-83@lists.ticalc.org


According to Joe's include file the values are different:

;-----> RST Routines
; These are the routines associated with the instructions rst 00h to rst
38h
; rst	00h - Restart
; rst	08h - call _op1toop2
; rst	10h - call _findSym (non-program/list)
; rst	18h - call _pushop1
; rst	20h - call _hltoop1 (copy 9 bytes from (hl) to op1)
; rst	28h - call _fpmult
; rst	30h - call _fpadd
; rst	38h - call the standard interrupt routine

Linus Akesson wrote:
> 
> In accordance with the prophecy, James Vernon uttered:
> 
> > I know "rst 20h" loads 9 bytes from (hl) to
> > (Op1) and "rst 18h" pushes Op1 to the fpstack. Does anyone know what all the
> > other "rst" commands do?
> 
> > James Vernon
> 
> RST 0    Reset (z80 jumps here when it first powers up, i.e. when you
>          insert new batteries)
> 
> RST 8    Copy OP1 to OP2 (_OP1TOOP2)
> 
> RST 16   Find variable in VAT (_FINDSYM)
> 
> RST 24   Push OP1 to FPS (_PUSHREALO1) OP1 must be a real number.
> 
> RST 32   Move 9 bytes at hl to OP1 (_MOV9TOOP1)
> 
> RST 40   OP1 * OP2 -> OP1 (_FPMULT)
> 
> RST 48   OP1 + OP2 -> OP1 (_FPADD)
> 
> RST 56   Interrupt handler (called automatically when a hardware interrupt
>          occurs)
> 
> Linus
> 
> - --- Linus Akesson ------------------------ http://linusworld.cjb.net --- -
> 
>                 We are the Knights who say:  MOVE.L  USP,A1

-- 
Scott "_Wrath_" Dial
wrath@calc.org
ICQ#3608935
TimeCity Co-Lead Developer, AI - www.timecity.org
Member of TCPA - tcpa.calc.org

References:

Re: A83: Help with a problem

From: Linus Akesson <lairfight@softhome.net>