Re: [oc] 8051 VHDL models search

[akfoo@hotmail.com]

JM:
    Thank for your information again. I will going to look for the book that 
you recomemded. :-)
    By the way, I still haven't received your attached zip file for the 
sources of Mayer's 8051 VHDL (synthesizable). Could you please send it 
to me again? For your information, my email address is as below:
    akfoo_uk@hotmail.com

    If I have any latest information for it, I will forward to you as well. :-)
    
    Thank alot!!

Best regard,
Alex


----- Original Message ----- 
From: Jean Masson <Jean.Masson@l... > 
To: cores@o...  
Date: Sat, 24 Nov 2001 15:02:07 +0100 
Subject: Re: [oc] 8051 VHDL models search 

> 
> 
> Hello Alex, 
> 
> I beleeved that you had already found the sources in Hamburg WEB 
> site. Sorry ! 
> 
> I send you an attached zip with the sources of Mayer's 8051 VHDL 
> code. 
> This is a behavioural VHDL architecture, but it follows 8051's true 
> 12 cycles clock. Other models I 
> know don't. 
> After compiling package and removing a non synthetisable statement 
> FILE, the source compiles 
> without errors with Xilinx's dev pack. It remains only warnings for 
> non synthetisable constructs 
> like impure functions, etc. 
> This is a work of eliminating all simulation specific constructs. 
> 
> There is a possible problem with undefined instruction E5H wich 
> executes a NULL in Mayer's code. 
> For synthesis it is 
> necessary to do an incrementation of PC. So, I have mixed this 
> instruction with NOP in the main 
> CASE. With a genuine 
> 8051, this code executes also a carry set. Other MCS51 members 
> treat E5H as a NOP. I follow this 
> policy. 
> 
> We are working on a structural/data flow mix of architectures for 
> the 8051 core. This is a 
> student's project sheduled for 
> february 2002. I work on 8051's ALU implementation following ideas 
> found in the book of André 
> STAUFFER : 
> Systèmes numériques cablés et microprogrammés, Presses 
> Polytechniques Romandes (a Swiss book). 
> This is a good book. It exists perhaps in English. You may found 
> equivalent ones directly in 
> English (consult catalog of 
> Kluwer Academic Press, they edit excellent books on VHDL and logic 
> synthesis). 
> 
> Good work and best regards, 
> 
> Jean MASSON 
> 
> akfoo_uk@h...  a écrit : 
> 
> > Hi JM. 
> >        Do you still remember me? I have download those source 
> code 
> > according to your information provide. Thank for your help!! 
> :-) 
> >        Regarding your question, I think there are only those 
> open source 
> > code in internet. Those others are need to buy/pay for their 
> source 
> > code. If you are interesting on it, you may go and look as URL 
> shown 
> > below: 
> >        http://www.dcd.pl/english/ipcores.htm 
> >        http://www.design-reuse.com/EXCHANGER/cast_8051.shtml 
> > 
> >        Hope it will help for you there. :-) 
> > 
> >        Recently I been study the whole source code. Could you 
> send me 
> > the synthesizable VHDL comportemental model of Dr. Mayer to me 
> since 
> > it got to remove a lot of unsynthesizable VHDL code, and I'm 
> just a new 
> > on it? Thank a lot!! 
> > 
> > ----- Original Message ----- 
> > From: Jean Masson <Jean.Masson@l... > 
> > To: cores@o... 
> > Date: Thu, 11 Oct 2001 14:40:29 +0200 
> > Subject: [oc] 8051 VHDL models search 
> > 
> > > 
> > > 
> > > Hello, 
> > > 
> > > I search VHDL models (structural if possible) of the 8051 
> > > microcontroller 
> > > family. I have found an entry in your server on this 
> topic, but 
> > > with 
> > > nothing inside. 
> > > I have downloaded the files of Dalton Project (University 
> of 
> > > California) 
> > > and 
> > > the VHDL comportemental model of Dr. Mayer. Did you know 
> another 
> > > files ? 
> > > 
> > > This if for a students' project. 
> > > 
> > > Thank you for your help. 
> > > 
> > > Best regards. 
> > > 
> > > Dr. Jean MASSON 
> > > 
> > 
> 
> <P>zip00000.zip</P> 
> 
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