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Topic: 68040

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	Motorola 68040 family
		Motorola 68040 is the next generation of 68020/68030 32-bit microprocessors.
		Major new features of the 68040 are bigger code and data caches (4 KB each) and integrated Floating Point Unit.
		Some internal logic of the Motorola 68040 uses 2x clock frequency, but the processor cannot be considered as double-clocked.
	www.cpu-world.com /CPUs/68040 (139 words)

	Motorola 68040 - Wikipedia, the free encyclopedia
		The Motorola 68040 is a microprocessor from Motorola, released in 1990.
		The 68040 is the first 680x0 family member with an on-chip FPU (floating point unit).
		The FPU in the 68040 was thus made incapable of IEEE transcendental functions, which had been supported by both the 68881 and 68882 and were used by the popular fractal generating software of the time and little else.
	en.wikipedia.org /wiki/Motorola_68040 (665 words)

	68040 Microprocessor
		The 68040 provides many of the benefits of the fastest RISC microprocessors while also providing the software compatibility that complex instruction set computing (CISC) microprocessors are known for.
		The 68040 is a smooth continuation of the 68000 family, with many new features that contribute to its increased processing power: an integer unit, a floating-point unit (FPU), built-in instruction and data caches (4 KB each), two memory-management units (MMUs), and a bus interface unit.
		Copyback allows the 68040 to hold modified data in the cache until the line needs to be replaced, at which time the data is written to memory.
	intranet.logiconline.org.ve /Techinfo/68040.Microprocessor.html (780 words)

	[No title]
		The 68040 ships with an initial clock speed of 25MHz; higher speeds are to be available in the future, Motorola says.
		Fine-Tuned for Performance The 68040 was built on the firm foundation of its predecessors.
		Preliminary results have a 68040 weighing in at 20 million instructions per second versus the SPARC's 18 MIPS and the 80486's 15 MIPS, all clocked at 25MHz.
	www.textfiles.com /computers/68040.txt (1853 words)

	Using the GNU Compiler Collection (GCC) (Site not responding. Last check: 2007-09-08)
		This option inhibits the use of 68881/68882 instructions that have to be emulated by software on the 68040.
		The generated code does use the 68881 instructions that are emulated on the 68040.
		The generated code does use the 68881 instructions that are emulated on the 68060.
	www.dis.com /gnu/gcc/M680x0-Options.html (811 words)

	[No title]
		Maintaining 32-bit widths on both the address and data bus as well as a bursting protocol for cacheable memory, the 68060 supports transfers of one, two, four, or 16 bytes in a given bus cycle.
		The 68060 relies on a deep internal pipeline and a superscalar internal architecture coupled with 8 Kbyte instruction and data caches, a 256-entry branch cache, on-chip MMUs and an on-chip FPU to bring new levels of performance to the M68000 Family architecture.
		Designs compatible with existing and future 68040 systems are simple, and higher frequency designs are possible using a new bus interface protocol.
	security-protocols.com /library/phreaking/68060Info.txt (3213 words)

	Dr. Dobb's \| 68040 Programming \| July 22, 2001
		The newest member of the 68000 family, the 68040, essentially combines a beefed-up 68030 and the low-level functions of the 68881 floating-point coprocessor onto the same chip.
		This problem is called "cache coherency." The 68040 takes care of this problem with "bus snooping" -- the chip looks at the system bus, and when a write memory cycle is detected, any on-chip cache location containing data for the changed location is marked invalid.
		On the 68040, the only floating-point operations supported are absolute value, add, branch on condition, compare, decrement and branch conditionally, divide, move, move multiple, multiply, negate, nop, restore internal state, save internal state, set on condition, square root, subtract, trap on condition, and test.
	www.ddj.com /184408316 (2063 words)

	The Smaky 400 Home Page
		The Smaky 400 is a PCI board based on a Motorola 68040 microprocessor, a 68360 Quad Integrated Communications Controller (QUICC) and a QSpan PCI bridge, the CA91C860 (see picture) developed by Tundra, formerly Newbridge, and manufactured in Motorola's fabs.
		The 68360 operates in slave mode (not in companion mode) and works as a standard 68040 bus master; this is required since the QSpan does not fully comply to the 68040 arbitration scheme.
		The Smaky 400 clock is derived from an on-board oscillator, using a PLL to distribute it point to point to the QSpan, to the QUICC and to the 68040.
	www.opac.ch /Smaky/sm400.html (929 words)

	VMEbus / 68040 Processor Boards
		Equivalent to the BAB 60, only equipped with a less expensive processor, for those applications where the performance of an MC 68040 is enough.
		Should higher performance be required, the BAB 60 is available as a drop-in replacement.
		Predecessor of the EUROCOM 27 board with the same features, except that the MC 68040 processors are less expensive and fulfill most application needs.
	www.vita.com /vmeprod/processors/68040.shtml (590 words)

	68LC040 -> 68040 upgrade \| Applefritter
		For example, I have Norton Utilities 1.1 installed on this machine, but if I try running it, it bombs out with a system error, stating that "a floating point co-processor is not installed", which, with the new processor is patently untrue.
		There is a slight gap between the CPU and socket, through which I can catch a glimpse of all the gold pins, but it won't push down any further - at least not with the amount of force I feel comfortable using.
		On a different note, my 68040 processor did not come with a fan or heatsink, though there were some smears of heat-conducting paste on it that show one was once present.
	www.applefritter.com /node/6591 (2564 words)

	Preface of The Motorola Microprocessor Family
		This text was written for the student in a course of study that requires a thorough knowledge of the Motorola family of microprocessors.
		After these basic family members are understood, the newest members (68010, 68020, 68030, and 68040) are introduced and any differences and new features that exist are highlighted.
		The other family members, which include the 68010, 68020, 68030, and 68040, are compared and contrasted with the 68000 and 68008 in chapters 12 and 13.
	users1.ee.net /brey/p6.htm (1461 words)

	Herb's 68040 Stuff
		Quadra 610 is the same as the Centris except with a 68040 processor.
		Centris 650:, 68040 at 25MHz, at least 12MB RAM (1 SIMMS), Sys 7.1.
		Quadra 650:, 68040 at 33MHz, at least 12MB RAM (1 SIMMS).
	retrotechnology.com /herbs_stuff/m_040.html (1023 words)

	Sonnet \| Presto 040 - 68040 Processor Upgrade Card (Site not responding. Last check: 2007-09-08)
		The Presto 040 processor upgrade card uses the same high-quality Motorola 68040 processor used in Macintosh Quadra computers to ensure maximum reliability and compatibility.
		The Presto 040 features a fast 80/40 MHz 68040 processor, and its performance is enhanced even further by incorporating an onboard 128K Level 2 cache, which serves as a high-speed buffer for frequently used information and data.
		The Presto 040 is the only 68040 processor upgrade card available for the Mac II series or Performa 600 that allows you to run Mac OS 8.1* as well as virtual memory or RAM Doubler.
	www.sonnettech.com /product/presto040.html (308 words)

	Motorola 68040 - Wikipedia, la enciclopedia libre
		El 68040 también fue empleado en otros ordenadores personales como el Commodore Amiga 4000, al igual que en algunas estaciones de trabajo y en las últimas versiones de los ordenadores NeXT.
		El 68040 es el primer miembro de la familia 68000 con una FPU incluida en el chip.
		La FPU del 68040 vio eliminada su capacidad para realizar funciones trascendentes del IEEE, las cuales son soportadas tanto por el 68881 como por el 68882, siendo usadas en programas populares de generación de fractales y poco más.
	es.wikipedia.org /wiki/Motorola_68040 (737 words)

	[No title]
		It uses the "full" 68040 chip, not the slower "EC" version, running at an overclocked 28Mhz, with an FPU and 2 MMUs on the chip.
		The biggest is the 68040 which comes with a large heat sink to dissipate heat.
		They were offering a substantial saving at the time, and their 68040 board was $600 cheaper than GVP's 50Mhz 68030 board (on the mail order market).
	math.uh.edu /~barrett/data/hardware/accelerators/FusionForty (1693 words)

	[No title]
		Due to the extremely fast implementation of the FPU instructions which are provided in hardware, in all cases the software emulation on a 28MHz 68040 exceeds the performance of the same instruction in hardware on a 33MHz 68882.
		In a 25MHz machine, the 68040 part of the accelerator can be turned off from software with a warm boot, leaving the expansion memory available, and powerup in 68030 or 68040 mode can be selected with a jumper.
		The 68030 one is largely compatible with the old 68851, but the 68040 one is quite different.
	www.cucug.org /amiga/amiinfo/reviews/Mercury68040.txt (2980 words)

	Amiga Enforcer
		Enforcer is an advanced debugging tool for Amiga computer systems equiped with a 68020/68851, 68030, 68040, or 68060 CPU.
		Enforcer now tries to reduce the memory frags that it may have caused on 68040 and 68060 systems while trying to allocate MMU table entries.
		MMU table entries must be aligned at certain addresses and the new code is better at finding reasonable holes to do this in.
	www.sinz.org /Michael.Sinz/Enforcer/index.html (824 words)

	Black Hole, Incorporated. - Premium NeXT Section !
		The system is built around the Motorola 25-megahertz 68040 CPU with integrated memory management and floating-point units, and includes the Motorola 56001 Digital Signal Processor for superior sound handling.
		The 68040 is a fast and highly integrated microprocessor with a clock speed of 25 MHz.
		The incredible number of transistors is required because the 68040 is actually four chips in one — a central processing unit, a floating point unit, a paged memory management unit, and 8 kilobytes of cache memory.
	blackholeinc.com /specials/blacksystems.shtml (2505 words)

	MacAddict Forums / 68040 vs early PPC's
		I want to know the speed comparison between the fastest quadra 68040's and the early power mac 601's.
		Although only running at 33mhz, I heard the 68040 was faster clock for clock than the 601 and was in some cases faster than it at very low mhz(like 50 or 60mhz).
		And a 68040 is plenty able to decode and play MP3s, but nobody bothered writing a player.
	www.macaddict.com /forums/post/196243 (1187 words)

	Upgrade your HP 9000/400 to a 425 or 433
		There are no instructions for upgrading an e machine, since they all shipped with 68040 processors (though you could still get a faster oscillator and 68040 for a nice simple speed boost).
		The 345 has the same case as the 340, but its guts are the same as the 375, namely same RAM cards and same upgrade path.
		I'm under the impression HP never shipped a 68040 version of this box, but there have been reports of people upgrading them.
	www.blobulent.com /hp300/upgrade (443 words)

	Ballard Technology - VMEbus Interface for ARINC 429 includes IP429-1 IndustryPack
		The 68040 on the Motorola MVME162 carrier board performs the processing required to handle up to 24 ARINC 429 channels (16 receivers and 8 transmitters) on four IndustryPack modules.
		Running on a local bus, the 68040 processor handles ARINC 429 messages on-board without loading the VMEbus or master CPU.
		An eight word FIFO and hardware gap timer on the IP429-1 minimize the processing required by the 68040.
	www.ballardtech.com /products.aspx/VME429-1 (722 words)

	MacAddict Forums / 68040 vs 68LC040
		I don't just mean in tasks that use fpu, but in everything.
		I picked up a Centris 650 from my district's school auction, and it is SUPPOSED to have a full 25Mhz 68040, but instead it has a 68LC040.
		I have a full-fledged Quadra 650, with the 33 MHz 68040 (Not LC) and it rocks.
	www.macaddict.com /forums/post/60657 (304 words)

	MC 68040 debugging via JTAG with gdb?
		I don't believe the 68040 has a JTAG port.
		It has, but I don't know which software is needed to use it.
		GDB stub is a piece of code in the target system.
	www.castalk.com /ftopic64.html (730 words)

	MicroMac LC475 68040 Logic Board Upgrade
		The MicroMac 68040 LC475 Logic Board Upgrade upgrades your 68020 or 68030 LC series or Performa computer with the capabilities and enhancements of a 68040-based Macintosh.
		The MicroMac 68040 LC475 Logic Board Upgrade is MicroMac's solution to upgrading 68020 and 68030-based LC and Performa Macs with the ability to run the latest application, multimedia and Mac OS software.
		The workstation is a chassis extension that upgrades the case of your computer with the ability to incorporate an internal 5.25" drive (such as a CD-ROM, Jaz or SyQuest drive), an internal 3.5" drive (such as a Zip or Optical drive) and two additional hard drives.
	www.micromac.com /products/lb_lc475_upgrade.html (1247 words)

	MicroMac LC575 68040 Logic Board Trade-up
		The MicroMac 68040 LC575 Logic Board Trade-up is MicroMac's solution to upgrading 68030-based Color Classic and Performa 520 Macs with the ability to run the latest application, multimedia and Mac OS software.
		The 68040 processor delivers the power needed to run today's demanding software that will not work with 68030-based Macs - even those equipped with an accelerator card.
		Prior to installing the MicroMac 68040 LC575 Logic Board Trade-up you will need to update or reinstall the System software so that it is compatible with the LC575.
	www.micromac.com /products/lb_lc575_upgrade.html (898 words)

	68040 Zip Code Detailed Profile - residents and real estate info
		Vehicles available in 68040 zip code in owner-occupied houses:
		Estimate of home value of owner-occupied houses in 2000 in zip code 68040:
		Additional information about hotels, doctors, dentists, jobs, apartments, real estate, travel attractions, weather, and many interactive features are coming soon.
	www.city-data.com /zips/68040.html (115 words)

	Re: 68040 buserror patch
		The patch appears to be mostly assembly, and though I'm not proficient at 68k assembly, I'll look to see if it does anything that would break an LC040.
		Of course, if you have a regular 68040, then we've got a larger problem.
		I'd appreciate further feedback from 68(LC)040 owners on this to decide whether or not we should pull it from CVS.
	lists.debian.org /debian-68k/2000/10/msg00041.html (263 words)

	UO Microcomputer Services About Mac OS 7.6
		Computers with 68040 microprocessors and computers with PowerPC processors that use the NuBus expansion bus can use large disks These computers can now use disks larger than 4 gigabytes, up to a maximum of 2 terabytes.
		On 68040 computers, large disks cannot be used as startup disks, and cannot contribute to virtual memory totals.
		If you have a Power Macintosh Upgrade Card and switch between PowerPC and 68040 modes, you will not be able to print in 68040 mode unles s you install LaserWriter driver version 8.3.4 instead of version 8.4.
	darkwing.uoregon.edu /~mcshtml/workshops/system7.6outline/about76.html (2494 words)

	2.4.8 segfaults on 68040 (Site not responding. Last check: 2007-09-08)
		I did try it on my 68060 BVME6000 with the kernel configured to use only 8Mb of the available 48Mb of RAM, the same amount of memory as the failing MVME167 and could not reproduce the problem.
		Since then I have updated my 68060 system with the latest Debian libc6-2.2.4 package and now it refuses to boot any 2.4 kernel, so unfortunately I can't retry this test until the libc6 package is fixed, perhaps I'll downgrade instead of waiting.
		Interestingly though, upgrading the libc6-2.2.4 package under the 2.4 kernel repeatedly failed with a SEGFAULT and I ended up installing it running a 2.2.19 kernel, so perhaps the fault is not specific to the 68040 after all.
	www.phil.uni-sb.de /pipermail/linux-m68k/2001-August/000102.html (198 words)

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