"Jun Sung Kim (???)" wrote:
>
> Hi again,
>
> Maybe some of you misunderstood me...
>
> I want the minimum configuration NOT for MSX standard
> but for EXECUTING EXISTING BIOS.
> ...
>
> * PPI is needed to set up address space because of the slot/page conception
> of MSX standard.
> * So PP
Daniel Caetano wrote:
>> How about in the reverse case (MSX2 ROM to MSX machine)?
>
> Then I think it'll hang on boot. MSX2 BIOS will probably look
> a lot of things that do not even exist on MSX1 (it will read the
> clock, set VDP palette, etc)
I wonder... a lot of things won't pose any problem
> Most of the times it will work. At least I have "changed" the original
MSX2
> BIOS ROM (32 KB) of two Philips machines, NMS-8235 and NMS-8245 with a
MSX
> BIOS ROM from a Sony HB-75 and it worked really fine. And both machines
have
> got mapper.
>
This is the one that I want to know :)
Did y
Hi,
>
> Most of the times it will work. At least I have "changed" the original
MSX2
> BIOS ROM (32 KB) of two Philips machines, NMS-8235 and NMS-8245 with a MSX
> BIOS ROM from a Sony HB-75 and it worked really fine. And both machines
have
> got mapper.
>
This is the one that I want to know :)
>Hi again,
Hi,
>Ok. How about this?
>I have a MSX2 machine and replace MSX2 BIOS ROM with MSX BIOS ROM.
>Then does the MSX2 machine work?
It'll depends on what is the hardware of this MSX2. If it has Mapper,
it may not work, since MSX1 BIOS do not set mapper. Also, if this
machine has differ
On Wed, 5 Feb 2003 11:39:13 +0900, Jun Sung Kim (???) wrote:
>Hi again,
Hi,
>Ok. How about this?
>I have a MSX2 machine and replace MSX2 BIOS ROM with MSX BIOS ROM.
>Then does the MSX2 machine work?
It'll depends on what is the hardware of this MSX2. If it has Mapper,
it may not work, since
Hi again,
Maybe some of you misunderstood me...
I want the minimum configuration NOT for MSX standard
but for EXECUTING EXISTING BIOS.
Ok. How about this?
I have a MSX2 machine and replace MSX2 BIOS ROM with MSX BIOS ROM.
Then does the MSX2 machine work?
How about in the reverse case (MSX2 ROM
Patriek Lesparre wrote:
I believe 8kB RAM is the minimum MSX1 requirement.
Not really, an MSX1 can boot with only 4kb.
I haven't inspected the BIOS source code closely enough to say for sure,
but I wouldn't be surprised if the PPI was not necessary. Ofcourse, no
keyboard without it, so the
---
Ushiko-san! Kimi wa doushite, Ushiko-san nan da!!
- Original Message -
From: "Patriek Lesparre" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, February 04, 2003 2:28 PM
Subject: Re: [MSX] minimum hardware configuration
> Laurens Holst wrote:
Hi!
For an MSX1 it will be enough with 8 KB RAM and 16 KB VRAM (if THE MSX RED
BOOK is right about the MSX standard definition).
MSX2 needs at least 64 KB of RAM and 64 KB of VRAM too. But no need of
memory mapper, that's right (MSX2 Technical Handbook).
Kind regards,
Ed Robsy
___
Laurens Holst wrote:
Afaik MSX 1 BIOS only requires 16kB of RAM, and an engine to take care of
several things. Oh, and a VDP, ofcourse. The BIOS will not work without it,
even if it were only for the interrupt it generates.
I believe 8kB RAM is the minimum MSX1 requirement.
I haven't inspected t
mapper (VG8220?) I don't think the mapper is a necessity.
~Grauw
---
Ushiko-san! Kimi wa doushite, Ushiko-san nan da!!
- Original Message -
From: "Jun Sung Kim (???)" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, February 04, 2003 7:06 AM
Subj
Hi again,
I'd like to know what is the minimum configuration of hardware
for MSX BIOS to run.
For example,
If I have an existing MSX(2) BIOS ROM and have a strange board
which has a Zx80, a RAM (whether mapper or not), a PPI and a VDP,
can I expect MSX logo on screen?
This question is the same
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