On Wed, 26 Apr 2000 03:55:22 +, Maarten ter Huurne wrote:
>> There is any external device to provide such "initial" byte?
>No, not on MSX.
>On most MSX machines the value "from the device" is #FF. But there have
>been cases reported of other values. The only safe way is to make code that
>w
On Tue, 25 Apr 2000, Laurens Holst wrote:
< about nemesis dawn >
> By the way, I don't think more than 8 colors are being used... couldn't this
> be made for screen 5 (or screen 7)??? I guess it then won't fit in 2 lines
> anymore though...
Nope. All 32 shades of gray are used, plus dit
On Wed, 26 Apr 2000, Daniel Jorge Caetano wrote:
> >I'm not sure what the standard says. But there are IM2 program on MSX. The
> >question is how many and whether they can be modified to use IM1 instead.
>
> Hummm... What is the way IM2 works? IM1 I know perfectly well, but I don't
> know a lo
On Wed, 26 Apr 2000 02:30:13 +, Maarten ter Huurne wrote:
>> There is no problem, I think. MSX standard is about IM1, right?
>I'm not sure what the standard says. But there are IM2 program on MSX. The
>question is how many and whether they can be modified to use IM1 instead.
Hummm... Wha
On Tue, 25 Apr 2000, Siebe Berveling wrote:
> > Now you may ask me why I delayed for so long the release of the
> >new version... The answer is that the current version didn't work in BrMSX
> >until the new release 2.5 ;-)
> Maybe you should have tried a REAL MSX some time earlier ...
> Hint, hin
On Wed, 26 Apr 2000, Daniel Jorge Caetano wrote:
> >For MSX this means that IM2 is not available. Neither is IM0, but that
> >was unused anyway.
>
> There is no problem, I think. MSX standard is about IM1, right?
I'm not sure what the standard says. But there are IM2 program on MSX. The
quest
On Wed, 26 Apr 2000 01:50:26 +, Maarten ter Huurne wrote:
>I read some more:
>"The internal I/O registers of the AB180-20 occupy the 64 addresses
>between 00h and 3Fh on reset. To avoid conflicts with external devices
>these registers can be relocated within the bottom 256 bytes of the I/O
>a
On Wed, 26 Apr 2000 01:06:05 +, Maarten ter Huurne wrote:
>"Not all Z80 interrupt modes are supported. The AB180-20 uses interrupt
>mode 2 only. The interrupt mode instructions are treated as NOPs. Z80
>interrupt acknowledge cycles are not generated."
>In the chapter out interrupts things bec
Hey all,
I'm not sure about the capabilities and shortcomings of any of the
currently available C-compilers for MSX, but I stumbled across this:
http://sdcc.sourceforge.net/
taken from the page:
>SDCC is a Freeware , retargettable, optimizing ANSI - C compiler. The
>current version targets th
For the people who haven't noticed: Yes, Z80 has 64kB I/O space (16 bit).
For "IN A,(n)" and "OUT (n),A" A is used as the upper 8 bit.
For "IN r,(C)", "OUT (C),r" and OTI/OTD/OTIR/OTDR, actually BC is used as
the I/O address!
The reason it's not used much (although I think I remember something
On Wed, 26 Apr 2000, Maarten ter Huurne wrote:
> This may be a serious one:
> "The on-chip register addresses are located in the I/O address space from
> H to 00FFH (16-bit I/O addresses). In order to access the on-chip I/O
> registers (using I/O instruction), the high-order 8 bits of the 16-
On Tue, 25 Apr 2000, Daniel Jorge Caetano wrote:
> On Tue, 25 Apr 2000 03:59:01 PDT, amnon loeza wrote:
>
> >Features:
> >* Z80, Z180 compatible
> >* 20MHz, 20 MIPS
> >* 1MB memory, 64k I/O
> >* two 16-bit timers
> >* MMU
> >* add. instructions: TST TSTIO MLT
> >The AB181E-20 microprocessor has a
> > I haven't done the exact math, but when you look at the Z380 opcode
>tables,
> > it seems the instruction set has nearly doubled. And if you take into
> > account the enhanced Z80-instructions (16 bit indexing 'n stuff) it's easy
> > to get to that number.
>
>Saying "200% more" means tot tota
> >If you take away all new registers and the new address space of the Z380,
> >you would still benefit greatly from the enhanced instructions. They are
> >NOT depending on those features!
>
> I think you are a lazy programmer. (-;
I take that as an insult, even with the smiley! :/
I hate laz
On Tue, 25 Apr 2000 16:10:05 +0200, [EMAIL PROTECTED] wrote:
>> Same on Z180. The Z80 already had 64k I/O, when using OUT (C),r or IN
>A,(n).
>?? Z80 has 256 I/O addresses, not 64k! It only uses the lower byte of the
>address
>lines to address I/O ports. I don't know about Z180, but my guess
>is
On Tue, 25 Apr 2000 15:38:46 +0200, Laurens Holst wrote:
>> * two 16-bit timers
>Z180 has even got an entire RS232 interface built into it!!!
This is a good difference. I like the internal RS232 on
Z180. Mainly if it works on the speed Ademir told me... (-:
>> * MMU
>Don't know about that...
On Tue, 25 Apr 2000 03:59:01 PDT, amnon loeza wrote:
>Features:
>* Z80, Z180 compatible
>* 20MHz, 20 MIPS
>* 1MB memory, 64k I/O
>* two 16-bit timers
>* MMU
>* add. instructions: TST TSTIO MLT
>The AB181E-20 microprocessor has an additional fixed math accelerator.
>Anyone familiar with this CPU?
] In addition to the recent "CPU discussion", I want to point at the AB180-20
] microprocessor made by AB-Semicon.
]
] Features:
] * Z80, Z180 compatible
] * 20MHz, 20 MIPS
] * 1MB memory, 64k I/O
] * two 16-bit timers
] * MMU
] * add. instructions: TST TSTIO MLT
]
] The AB181E-20 microprocesso
]] be rewarding to him. Maybe I'll never know
] if there's more people like me, who dream
] of a music composing tool with support to
] PSG, SCC, MSX-Music, MSX-Audio, Moonsound
] and some other hypothetical music hardware...
]
] And don't say that's not feasible. RicBit
] told me it's feasible,
> Now you may ask me why I delayed for so long the release of the
>new version... The answer is that the current version didn't work in BrMSX
>until the new release 2.5 ;-)
Maybe you should have tried a REAL MSX some time earlier ...
Hint, hint, hint. They do also exist . I've got a VG8235 for s
This will only work if you have a 8235/00 if you have a 8235/20
there will be only 1 rom, if you remove it you also remove the
bios / basic etc.
if if you want this it will be easyer to connect a normal 720Kb
diskdrive to the
rear connector .
8235 can use 720Kb , it can only not be formatted.
if
>Holas,
>
>I have a nms 8235 which has a *whine* 360kb internal diskdrive. This is
NMS 8235?? I have VG8235 (/00) ..
>no biggy though as i also have an external cannon VF-100 which is 720kb.
>The reason of this post? The cannon is both A and B, and the internal
Does A: give acces to 360 KB a
Hé, good guess! I haven't tried it, but it might just do the trick! It is
normal that the ROMS of a 8235 are socketed. I have modified a few 8235 to
720Kb in the past and used the diskroms from a 8250.
Hans-Peter
-Oorspronkelijk bericht-
Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]Na
I have send this message before, but nobody replied on it and because I have
a little email trouble every now and then, maybe this message didn't get
trough. So here it is again:
A little while ago I have mailed about an external floppydrive connector
that was on my second hand Turbo-R.
Somebody
Laurens,
I want exted more and explain right over the concept involving in me Design
Achitecture as one FAQ questionarie (part 2):
OVER LPE-Z380-V2.
Q: What type is the control HW ?
A: Have 2 Flash CPLD (2500 PLD Gates equivalent), for reprograming.
Q: What HW Architecture have ?
A: Equivalen
> > ?? Z80 has 256 I/O addresses, not 64k! It only uses the lower byte of
the
> > address
> > lines to address I/O ports. I don't know about Z180, but my guess
> > is that that processor uses 16-bits I/O adressing space (equals 64k)
>
> I heard that Z80 actually publishes BC on the bus when doing
Floris 'Tamama' van Gog wrote:
>
> Holas,
>
> I have a nms 8235 which has a *whine* 360kb internal diskdrive. This is
> no biggy though as i also have an external cannon VF-100 which is 720kb.
> The reason of this post? The cannon is both A and B, and the internal
> floppy is C.
and probably
On Tue, 25 Apr 2000, [EMAIL PROTECTED] wrote:
> Grauw wrote:
>
> >> * 1MB memory, 64k I/O
> >
> > Same on Z180. The Z80 already had 64k I/O, when using OUT (C),r or IN
> A,(n).
>
> ?? Z80 has 256 I/O addresses, not 64k! It only uses the lower byte of the
> address
> lines to address I/O ports. I
Grauw wrote:
>> * 1MB memory, 64k I/O
>
> Same on Z180. The Z80 already had 64k I/O, when using OUT (C),r or IN
A,(n).
?? Z80 has 256 I/O addresses, not 64k! It only uses the lower byte of the
address
lines to address I/O ports. I don't know about Z180, but my guess
is that that processor use
> In addition to the recent "CPU discussion", I want to point at the
AB180-20
> microprocessor made by AB-Semicon.
>
> Features:
> * Z80, Z180 compatible
So is Z380.
> * 20MHz, 20 MIPS
Z180: 33MHz, don't know about MIPS.
> * 1MB memory, 64k I/O
Same on Z180. The Z80 already had 64k I/O, whe
> 25/04/00
>
> Hi Folks!
>
> I just wanna tell you about a MSX forum, called MSX Talk, anyone iw
welcome
> to post any messages there!
Sorry. The MSX Mailinglist is a full-fledged job. I even haven't got time to
read the comp.sys.msx newsgroup!!! Let go the MSX Talk forum.
~Grauw
--
>
> > >Why didn't you never showed us "Nemesis Dawn" demo? Don't say that you
> > >made it yestarday!
> > It was shown in MSX Rio'99! (-;
>
> The version in the page in not the same version shown in rio'99
> As you may remember , that version had only half of the animation.
> The version in the art
> > Yeah? Well, I still haven't seen 8x8 sprite support in screen 5. And we
> > really need it, for GEM development...
>
> Hey, big fudeba!
> I told you once, Daniel told you and also Ricardo told you!
> Send e-mails to Ricardo asking for 8x8 sprites in BrMSX SCREEN 5
> until he implements it. Or
> > >And as I stated above, most new instructions could also have been added
to
> > >the Z180... They have nothing to do with the extended address range
etc.
> >
> > Yes, you are right. Some. But they are absolutely NOT 200% more than
> >Z80 instruction set!
>
> I haven't done the exact math, bu
The diskrom of my 8235 is in a socket. I don't know if this is standard, it
could be the socket was placed when building in a 720 kb diskdrive.
But if it is, you can simply remove the diskrom and the internal drive
won't be recognised anymore.
Regards,
Philip
At 10:43 AM 4/25/00 +0200, you wr
In addition to the recent "CPU discussion", I want to point at the AB180-20
microprocessor made by AB-Semicon.
Features:
* Z80, Z180 compatible
* 20MHz, 20 MIPS
* 1MB memory, 64k I/O
* two 16-bit timers
* MMU
* add. instructions: TST TSTIO MLT
The AB181E-20 microprocessor has an additional fixe
Hi,
I shall put some comments in the assembly, if you don't agree with what I
say, there's an error in the implementation (or a mistake on my side ;)
> I have the following subroutine:
>
> ld hl,(table) ; load table into hl
dynamic start of table: the start address is kept at address table
> i
I guess that the canon is connected to a floppydrive controller as a
cartridge. Each controller (the buid in and the cartridge) are able to to
run 2 diskdrives. unfortunatly the internal controller is the first
controller. So, if you are able to, hardware, disable the internal
controller, the exte
Hi all,
Floris asked:
>I have a nms 8235 which has a *whine* 360kb internal diskdrive. This is
>no biggy though as i also have an external cannon VF-100 which is 720kb.
>The reason of this post? The cannon is both A and B, and the internal
>floppy is C. The external drive has a connector for a
39 matches
Mail list logo
