Jazz - Revision history

Alec v: wikify

2007-04-17T13:51:02Z

wikify

Ralf: Add to ARC category.

2006-05-17T11:32:23Z

Add to ARC category.

Alec v: Magnum flash

2005-07-11T11:51:00Z

Magnum flash

Ryanaxp: mips64emul was renamed to GXemul; various edits

2005-06-30T21:14:17Z

mips64emul was renamed to GXemul; various edits

Alec v at 22:37, 5 June 2005

2005-06-05T22:37:52Z

Alec v: link to Linux_Interrupts

2004-11-23T13:59:15Z

link to Linux_Interrupts

Alec v: hardware details

2004-11-22T13:59:54Z

hardware details

Alec v: Video options

2004-11-22T07:56:28Z

Video options

Ralf: /* SCSI Options */

2004-11-22T05:20:21Z

‎SCSI Options

Alec v: ESP216

2004-11-21T22:22:58Z

ESP216

@@ Line 1: / Line 1: @@
-'''Jazz''' was the codename under which this family of systems was originally developed by [[Wikipedia:Microsoft|Microsoft]] before it was sold off to [[Wikipedia:MIPS_Computer_Systems_Inc.|MIPS Computer Systems, Inc.]] MIPS, [[Wikipedia:Toshiba|Toshiba]], [[Wikipedia:Acer_(company)|Acer]] and various customers and licenses have developed a variety of architecturally very similar systems.
+'''[[Wikipedia:Jazz (computer)|Jazz]]''' was the codename under which this family of systems was originally developed by [[Wikipedia:Microsoft|Microsoft]] before it was sold off to [[Wikipedia:MIPS_Computer_Systems_Inc.|MIPS Computer Systems, Inc.]] MIPS, [[Wikipedia:Toshiba|Toshiba]], [[Wikipedia:Acer_(company)|Acer]] and various customers and licenses have developed a variety of architecturally very similar systems.
 [http://www.linux-mips.org/archives/linux-mips-fnet/1998-08/msg00039.html History]
@@ Line 21: / Line 21: @@
 == Video Options ==
-The original Microsoft/MIPS Magnum 4000 and Olivetti&nbsp;M700-10 use a simple framebuffer (capable of resolutions of 1024x768 or 1200x968 pixels at 8 bpp color) based on the Inmos [[G300]] or [[G364]](64-bit) RAMDAC and VRAM chipset (a similar G364-based framebuffer is found in an aftermarket graphics card for the Amiga).
+The original Microsoft/MIPS Magnum 4000 and Olivetti&nbsp;M700-10 use a simple framebuffer (capable of resolutions of 1024x768 or 1200x968 pixels at 8 bpp color) based on the Inmos G300 or [[Wikipedia:G364 framebuffer|G364]] (64-bit) RAMDAC and VRAM chipset (a similar G364-based framebuffer is found in an aftermarket graphics card for the Amiga).
 The ACER PICA-61 uses an [[Wikipedia:S3_Graphics|S3]]&nbsp;968 SVGA videocard with 2MB of video memory on the custom fast PICA bus.  The video card looks like an EISA card but the notch is on the wrong side.

← Older revision		Revision as of 11:32, 17 May 2006
Line 52:		Line 52:
	* [[Wikipedia:MIPS_Magnum\|MIPS Magnum]] entry at Wikipedia		* [[Wikipedia:MIPS_Magnum\|MIPS Magnum]] entry at Wikipedia
	* [[Wikipedia:Jazz_(computer)\|Jazz]] entry at Wikipedia		* [[Wikipedia:Jazz_(computer)\|Jazz]] entry at Wikipedia
		+
		+	[[Category:ARC]]

@@ Line 38: / Line 38: @@
 == Firmware ==
 All Jazz family systems come with an [[ARC]] firmware.
@@ Line 46: / Line 49: @@
 * [http://www.netbsd.org/Ports/arc NetBSD] port to ARC machines
 * [http://www.openbsd.org/arc.html OpenBSD] port to ARC machines
-* [http://gavare.se/gxemul/ GXemul] has rudimentary support for the Jazz architecture
+* [[Emulators#GXemul|GXemul]] has rudimentary support for the Jazz architecture
-* [http://en.wikipedia.org/wiki/Jazz_(computer) Jazz] entry at Wikipedia
+* [[Wikipedia:MIPS_Magnum|MIPS Magnum]] entry at Wikipedia

@@ Line 3: / Line 3: @@
 [http://www.linux-mips.org/archives/linux-mips-fnet/1998-08/msg00039.html History]
-Most of these systems were running the [[ARC|ARC firmware]] and [[Wikipedia:Windows_NT|Windows NT]].  Some systems made by MIPS were reconfigurable to [[Endianess|big endian]]; in big endian mode a different set of firmware and some [[Wikipedia:UNIX|UNIX]] flavor such as [[RISC/OS]] in case of MIPS was being used.
+Most of these systems shipped with the [[ARC|ARC firmware]] and were intended to run [[Wikipedia:Windows_NT|Windows NT]].  Some systems made by MIPS (''i.e.'', the MIPS Magnum 4000PC and 4000SC) were reconfigurable to run in [[Endianess|big endian]] mode by reflashing the firmware EEPROM with MIPS, Inc.'s proprietary SASH firmware; in big endian mode the Magnums could run [[RISC/os]], which was MIPS, Inc.'s proprietary [[Wikipedia:BSD|BSD]]-derived [[Wikipedia:UNIX|UNIX]] variant.
-−
 == Architecture ==
-All Jazz computers are sharing the same "core" architecture codenamed RC4030 or MCTADR (after chipset).
+All Jazz computers share the same "core" architecture codenamed RC4030 or MCTADR (after the motherboard ASIC chipset).  This includes, ''inter alia'':
+* an RC4030 DMA controller;
-RC4030 DMA controller.
+* an RC4030 IRQ controller (see also ''[[Linux_Interrupts]]''); and
+* an RC4030 Timer.
-RC4030 IRQ controller. See [[Linux_Interrupts]] page.
-−
 RC4030 Timer.
-Some Jazz models are using additional i8259 (PC-style IRQ) and i8257A (PC-style DMA) controllers to support ISA/EISA bus IRQ/DMA.
+Some Jazz models use additional i8259 (PC-style IRQ) and i8257A (PC-style DMA) controllers to support ISA/EISA bus IRQ/DMA.
 == SCSI Options ==
-''ACER PICA-61'',''Olivetti M700-10'', ''MIPS Magnum 4000'' and ''MIPS Millenium'' are based on the [[NCR|NCR 53C90]] also known as QLogic ESP216 or ''ASC'', ''Advanced SCSI Controller''.
+The ''ACER PICA-61'',''Olivetti M700-10'', ''MIPS Magnum 4000'' and ''MIPS Millenium'' have a SCSI interface based on the [[NCR|NCR 53C90]] chipset (also known as the QLogic ESP216 or ''ASC'', ''Advanced SCSI Controller'').
 == Networking Options ==
-''ACER PICA-61'',''Olivetti M700-10'', ''MIPS Magnum 4000'' and ''MIPS Millenium'' are using a [[SONIC]] Ethernet chip.
+The ''ACER PICA-61'',''Olivetti M700-10'', ''MIPS Magnum 4000'' and ''MIPS Millenium'' all use a [[SONIC]] Ethernet chip.
 == Video Options ==
-The original Microsoft/MIPS Magnum 4000 and Olivetti&nbsp;M700-10 use a simple framebuffers 1024x768 based on the Inmos [[G300]] or [[G364]](64-bit).
+The original Microsoft/MIPS Magnum 4000 and Olivetti&nbsp;M700-10 use a simple framebuffer (capable of resolutions of 1024x768 or 1200x968 pixels at 8 bpp color) based on the Inmos [[G300]] or [[G364]](64-bit) RAMDAC and VRAM chipset (a similar G364-based framebuffer is found in an aftermarket graphics card for the Amiga).
-ACER PICA-61 is using [[Wikipedia:S3_Graphics|S3]]&nbsp;968 SVGA videocard with 2MB of video memory on the custom fast PICA bus.  The video card looks like an EISA card but the notch is on the wrong side.
+The ACER PICA-61 uses an [[Wikipedia:S3_Graphics|S3]]&nbsp;968 SVGA videocard with 2MB of video memory on the custom fast PICA bus.  The video card looks like an EISA card but the notch is on the wrong side.
-NEC Evolution is using Cirrus Logic based video.
+The NEC Evolution uses a Cirrus Logic based video.
 == Sound options ==
-Microsoft/MIPS Magnum 4000 is using simply sound controller (codename Jazz) : 2xDMA for left and right channel.
+The Microsoft/MIPS Magnum 4000 includes a simple sound controller (codename Jazz) comprising two DMAs&mdash;one for each of the left and right channels, respectively.
-Olivetti M700-10 is using AD1815-based sound controller (?need to check)
+Although largely identical to the Magnum 4000 series in other respects, the Olivetti M700-10 nonetheless uses AD1815-based sound controller (?need to check) rather than the simple DMA system of the Magnum.
 == I/O options ==
@@ Line 45: / Line 41: @@
 == Linux Support ==
-Linux/MIPS supports the Olivetti M700-10 almost since birth.  Support is supposed to be stable in 2.2 and in various stages of bitrot after that.  As of Linux 2.6 resurrection of support is being worked on.  Not test results on other Jazz family systems are available.
+Linux/MIPS has supported the Olivetti M700-10 almost since the original release of the M700, with support for the quite similar MIPS Magnum R4000PC achieved soon thereafter.  Support for the Jazz machines is reportedly stable in the 2.2 kernels, but suffers from various degrees of bitrot after that.  As of Linux 2.6 resurrection of support is being worked on.  No test results on other Jazz family systems are available.
 == External Links ==
-* http://www.netbsd.org/Ports/arc NetBSD port to ARC machines
+* [http://www.netbsd.org/Ports/arc NetBSD] port to ARC machines
-* http://www.openbsd.org/arc.html OpenBSD port to ARC machines
+* [http://www.openbsd.org/arc.html OpenBSD] port to ARC machines
-* [http://www.mdstud.chalmers.se/~md1gavan/mips64emul/ mips64emul] has suppor for Jazz architecture.
+* [http://gavare.se/gxemul/ GXemul] has rudimentary support for the Jazz architecture

@@ Line 8: / Line 8: @@
 == Architecture ==
-All Jazz computers are sharing the same "core" architecture codenamed RC4030.
+All Jazz computers are sharing the same "core" architecture codenamed RC4030 or MCTADR (after chipset).
 RC4030 DMA controller.

@@ Line 7: / Line 7: @@
 == SCSI Options ==
-''ACER PICA-61'',''Olivetti M700-10'', ''MIPS Magnum 4000'' and ''MIPS Millenium'' are based on the [[NCR|NCR 53C90]] also known as ESP216 or ''asc''.
+''ACER PICA-61'',''Olivetti M700-10'', ''MIPS Magnum 4000'' and ''MIPS Millenium'' are based on the [[NCR|NCR 53C90]] also known as QLogic ESP216 or ''asc''.
 == Networking Options ==