Re: A92: fp register?

To: <assembly-92@lists.ticalc.org>
Subject: Re: A92: fp register?
From: Kevin Van Vechten <kevinvv@usa.net>
Date: Tue, 13 Apr 99 17:45:32 -0700
Delivered-To: assembly-92-outgoing@towerguard.unix.edu.sollentuna.se
Delivered-To: assembly-92@lists.ticalc.org
Reply-To: assembly-92@lists.ticalc.org


FP is the frame-pointer, not a floating point register.
the frame pointer points to the space between parameters
and local variables of a subroutine after a LINK call.

>Hi Has enybody out there ever used the Ti floating point rom routines?  I 
>was looking at the web page for the exec command, and it mentioned 
>floating point support.  Does anybody know how to use the _bcd_math 
>routine?   Also the page mentions the FP registers several times.  For 
>example
>       
>      ---> PEA     bcd(FP)           ;address of BCD value to store
>            PEA     name(PC)          ;address of zeros-terminated string
>            MOVE.L  EX_stoBCD(A5),A0
>            JSR     (A0)              ;call EX_stoBCD
>            ADDQ.L  #8,SP             ;pop parameters from stack
>
>
>
>Does the ti have fp registers?      
>            Hoping  Someone can help
> Thanks   Eric

Kevin Van Vechten
kevinvv@usa.net

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