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| | [No title] |
 | | The cheapest solution is to place the peripheral on one of the byte lanes and use the MOVEP instruction. | | | QUESTION In an MC68000 system, we desire that all registers of an 8-bit peripheral be mapped on byte boundaries. | | | Note that bus arbitration is done on a cycle-by-cycle basis, so the bus can be arbitrated away from the MC68000 after the first of the two 16-bit writes, and the processor will complete the long-word write after it retakes the bus. |
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http://www.zophar.net/tech/files/68000faq.txt
(1349 words)
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| | Design Philosophy Behind Motorola's MC68000 (2) |
| | The MC68000 overcomes this with the ADDI instruction, which allows a byte, word, or long-word immediate value to also be added to an operand in memory using any legal destination-memory addressing mode. | | | The computation and data-movement instructions that perform the major work in any MC68000 program are numerous, comprehensive, and, perhaps most important, straightforward and easy to use. | | | ADDX and SUBX are used to work on numbers longer than 32 bits (the X condition bit in the MC68000 performs a function similar to the one the carry bit performs in most microprocessors). |
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http://linux.cis.monroeccc.edu/~paulrsm/doc/dpbm68k2.htm
(7538 words)
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| | Linux/m68k for Macintosh - Mac Plus hardware |
| | The first 256 bytes of RAM (addresses 0 through $FF) are used by the MC68000 as exception vectors; these are the addresses of the routines that gain control whenever an exception such as an interrupt or a trap occurs. | | | A word access to any SCC address will shift the phase of the computer's high-frequency timing by 128 nanoseconds (system software adjusts it correctly during the system startup process). | | | The SCC is on the upper byte of the data bus, so you must use only even-addressed byte reads (a byte read of an odd SCC read address tries to reset the entire SCC). |
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http://www.mac.linux-m68k.org/devel/plushw.php
(9555 words)
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| | Design Philosophy Behind Motorola's MC68000 (3) |
| | Even though all MC68000 instructions are multiples of 16 bits and must be aligned on word boundaries (i.e., start on even addresses), the MC68000 interprets the displacement in all branching operations to be a byte count, not a word count. | | | They cause either a line-1010-emulator or a line-1111-emulator trap routine to execute, enabling the programmer to emulate in software functions that are not implemented in the processor chip of the system. | | | Data-movement, arithmetic, and logic instructions do most of the computational work in programs, but computers would be little more than adding machines without program-control instructions. |
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http://linux.cis.monroeccc.edu/~paulrsm/doc/dpbm68k3.htm
(4364 words)
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| | sc68 - Atari ST and Amiga musics |
| | The Mc68000 emulator was designed in order to execute 68K music player, which is a main reason of its being. | | | The project portabilty has not currently been tested, but it is expected to work fine with all 32 bit processors of any endianess. | | | The whole makes the emulator library quiet large but it seems to be the only acceptable way to design a decent Mc68000 emulator. |
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http://sc68.atari.org/developers_technicals.html
(1314 words)
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| | WISM68 - The Windows MC68000 Simulator |
| | The MC68000 processor is used in this course as an example of a real-world processor. | | | The project brief was to create an easy to use environment that could be used by students studying the Computer Architecture course. | | | The simulator that was currently in use at the time was an old DOS-based program that, although it worked well, was completely unfriendly to use. |
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http://www.hildreds.freeserve.co.uk/WISM68
(215 words)
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| | Computermuseum: Overdracht van Unix V7 naar MC68000 |
| | The XC68000 had all instructions of the MC68000 except for one,; an instruction to pass parameters between subroutines. | | | A lot of our problems were caused by this assumption, but finally we had a system where these problems were solved. | | | While this was a logical choice for the MC68000 architecture, most Unix programs silently assumed sizeof(int) = seizeof(char *). |
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http://www.cs.kuleuven.ac.be/museum/mc68000/unix-ove-E.html
(621 words)
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| | [No title] |
| | The MC68000 architecture dictates that these immediate extension words always precede the effective address extension words---that is, they come between the instruction word and the effective address extension words. | | | In the MC68000 architecture, the basic word length is 16 bits, and all instructions are an integral number of words in length. | | | This is typical of the CISC character of the MC68000: the instruction formats are highly variable, with the opcode varying in length from 4 to 16 bits and the other bits specifying additional information with only occasional consistency. |
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http://www.eecs.harvard.edu/~nr/toolkit/working/mff-trip/68k/braun/asminstr.html
(3938 words)
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| | Solo's infopage - Optimizing 680x0 Applications |
| | When writing programs in a high level language, the compiler can do the processor specific optimizations, but in assembly language a decision has to be made on which processor to optimize for. | | | This paper will discuss the integer performance of the 68K family and ways to optimize both for the individual processors as well as produce code that runs well on any 68K processor. | | | We will discuss what can be done to optimize 68K code on all three levels. |
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http://home-1.tiscali.nl/~solognt/codingstuff/optimizing.html
(551 words)
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| | MundayWeb.com - Motorola MC68000 IDE |
| | Therefore, an assembler and emulator for the Motorola MC68000 processor are required in order to use the program. | | | My MC68000 IDE does not assemble and emulate the assembly programs itself, it merely creates a development environment. | | | When the program loads for the first time, it will ask the user where the assembler and emulator can be found. |
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http://www.mundayweb.com/progs/mc68000.php
(385 words)
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| | Motorola MC68000 Microprocessor Family: Assembly Language Interface Design and System Design, The: Current Amazon ... |
| | In addition to its use as a learning aid, the text serves as a valuable reference in which topics are organized according to function and importance for the design of programs, interfaces or systems. | | | This was the book our professor recommended for my first course in assembly language programming for the Motorola 68000 microprocessor. | | | Key Benefit: This important revision introduces both students and practicing computer professionals to the characteristics of the Motorola 68000 family of processors. |
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http://www.mobilewebsystems.us/stuff-0131587420.html
(365 words)
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| | [No title] |
| | Write an MC68000 program fragment that searches for a {\em key\/} in a binary search tree. | | | Suppose that the base address of the root of a binary search tree is in {\tt A0} and suppose that {\tt D0.W} contains the key that your program is searching for. | | | Assuming that the user types in as input one of 0, 1, or 2, explain clearly what the above program does in response. |
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http://www.cs.uiowa.edu/~sriram/18fall95/homework7.ascii
(514 words)
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| | MC68000 |
| | We solve sourcing challenges for parts like MC68000 -- hard to find, long lead time, obsolete components and ICs. |
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http://www.usbid.com/part.cfm/MC68000
(27 words)
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| | MC68000 Software Emulator:Home Page |
| | My chosen project is a software emulator of the Motorola MC68000 microprocessor. | | | I have quite a few new ideas for future versions of the emulator, so be sure to check frequently for new updates. | | | For more information on the emulator itself, visit the official MC68000 Emulator home page. |
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http://www.hildreds.freeserve.co.uk/Project/Index.html
(199 words)
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| | Find in a Library: MC68000 assembly language programming |
| | WorldCat is provided by OCLC Online Computer Library Center, Inc. on behalf of its member libraries. | | | Find in a Library: MC68000 assembly language programming |
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http://worldcatlibraries.org/wcpa/ow/2492fa9c9c8b1e4ba19afeb4da09e526.html
(47 words)
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| | CSI 2111 - Architecture of Sim68k Processor |
| | The simulator will take as input a program written in sim68k assembly/machine language and will execute it, that is to say it will execute each of the sim68k machine instructions in the input program. | | | In your simulator, you will implement them as individual boolean variables to simplify their manipulation. | | | OpAddr2 (word) = the address of the second operand of the instruction currently being executed (if and when needed (Sections 5and6)). |
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http://www.site.uottawa.ca/~anayak/CSI2111/sim68k.html
(1900 words)
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| | Aronsson's Telecom History Timeline |
| | Apple Lisa computer, having the 5 MHz Motorola MC68000 CPU, 16 bit datapath, 16 kB ROM, 512 kB RAM expandable to 2 MB, 12-inch color monitor, 720x360 BandW graphics screen, dual built-in 871 kB 5.25" floppies, built-in 5 MB hard disk. | | | Mac Plus computer, having an 8 MHz Motorola MC68000 CPU, 16 bit datapath, 128 kB ROM, 1 MB RAM expandable to 4 MB, built-in 800 kB 3,5" floppy, SCSI port. | | | Mac SE, having a 8 MHz Motorola MC68000 CPU, 16 bit datapath, 256 kB ROM, RAM expandable to 4 MB, built-in 800 kB 3,5" floppy, a built-in expansion slot for an internal 40 MB hard disk or a second floppy, |
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http://aronsson.se/hist.html
(19118 words)
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| | [No title] |
| | Resetting the MC68000; The HALT pin; A hardware example for RESET and HALT and function of Bus Error. | | | Summary: Write programs using the MC68000 instructions and addressing modes to solve some fundamental problems. | | | Explain Bus Error exception processing assertion of the Bus Error pin, Bus Error stack structure. |
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http://www.library.fau.edu/depts/media/visub22.htm
(5212 words)
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| | comp.sys.m68k Frequently Asked Questions |
| | MC68008 is a MC68000 with a 8 bit external data path and A0 pin. | | | Motorola also made the ECB single board computer (MEX68KECB) that runs a MC68000 CPU with a wirewrap area for educational and development purposes. | | | The first member of the 68K family - the MC68000, is not software compatible with the 8 bit 6800 series which includes the 68HC11 series. |
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http://www.esacademy.com/automation/faq/m68k
(11012 words)
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| | Motorola 68000 - Wikipedia, the free encyclopedia |
| | The MC68000 was used for the design of computers like the Apple Macintosh, Commodore Amiga, Atari ST, early HP 9000s, and the original Sun Microsystems UNIX machines as well as the Apollo/Domain workstations. | | | This belief in more compact code led to many of its design wins, and much of its longevity as an architecture. | | | Many designers believed that the MC68000 architecture had compact code for its cost, especially when produced by compilers. |
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http://en.wikipedia.org/wiki/Motorola_68000
(2308 words)
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| | MC68000 Simulator |
| | This Simulator of the MC68000 central processing unit has been created for the use of students studying the CSC104 Computer Architecture module at Queen's University Belfast. | | | Click Here to launch the Simulator applet program. |
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http://www.cs.qub.ac.uk/~J.Ming/csc104/68ksimulator
(68 words)
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| | Dual MC68000 |
| | The dual MC68000 based hardware configuration had the same specifications as Robocop 2, which is on the fifth MC68000 based hardware configuration. | | | The eighth MC68000 configuration was first used before the dual MC68000 hardware, but lasted another year after this configuration, making this arrangement be the 2nd last one to be based on a 16-bit processor. | | | It's not currently certain whether this arrangement is stronger that the eighth MC68000 based configuration, but if this is not the strongest, then it's a close second. |
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http://emustatus.rainemu.com/deep/d_mc68000-dual.htm
(140 words)
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| | Microprocessor - Encyclopedia.WorldSearch |
| | All these systems ran the original Bell Labs UNIX Operating System, which included the first Windows-type software called xt-layers. | | | The most famous of the 32-bit designs is the MC68000, introduced in 1979. | | | The 68K, as it was widely known, had 32-bit registers but used 16-bit internal data paths, and a 16-bit external data bus to reduce pin count. |
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http://encyclopedia.worldsearch.com/microprocessor.htm
(2644 words)
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| | MC68000 Product Summary Page |
| | The MC68HC001 is also a CMOS version of the original MC68000 with 8-/16-bit selectable data bus. | | | The MC68HC000 is a CMOS version of the original MC68000. | | | The MC68EC000 version provides a lower cost 68000 solution. |
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http://freescale.com/webapp/sps/site/prod_summary.jsp?code=MC68000&...
(1277 words)
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| | MC68000: 6th Configuration |
| | This time, four 3rd party games were manufactured on this hardware, which is evidence that Data East's MC68000 hardware was growing popular. | | | This was the second MC68000 hardware configuration that 3rd party companies like Mitchell, Comad, and Unico Electronics licensed from Data East. | | | However, Data East stopped using this MC68000 based configuration for their own games in 1990 but continued using the previous one until 1991. |
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http://emustatus.rainemu.com/deep/d_mc68000-6.htm
(133 words)
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| | Computermuseum: MC68000 and Unix porting |
| | Our own system and Munix did use swapping. | | | At that time systems based on MC68000 became available which where capable of using virtual memory (e.g. | | | The port was done to the Exormacs (technical datasheet) hardware. |
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http://www.cs.kuleuven.ac.be/museum/mc68000/port-E.html
(109 words)
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| | Atari Gallery |
| | One, two or four megabytes of RAM memory. | | | The name "ST" is derived from the capabilities of the Motorola MC68000 processor upon which the original Atari line was based. | | | The MC68000 uses a Sixteen bit data bus with a Thirty-two bit address bus. |
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http://yescrew.real-atarian.net/eng/atari.htm
(733 words)
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| | Compare prices for books |
| | ISBN 0131587757 SPICE: A Guide to Circuit Simulation and Analysis Using PSpice (3rd Edition) | | | ISBN 0131587420 Motorola MC68000 Microprocessor Family: Assembly Language Interface Design and System Design, The |
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http://www.akabook.com/books/book29.html
(2041 words)
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| | 68ksim - An MC68000 simulator for RISC OS |
| | 68ksim - An MC68000 simulator for RISC OS 68ksim - An MC68000 simulator for RISC OS Download the latest version (v0.01, 20-Mar-2000, binary only) |
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http://homepage.eircom.net/~kmgaughan/software/68ksim.html
(149 words)
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| | The history of the Sega Mega Drive / Genesis series |
| | The Sega Master System was driven by a Zilog Z80a CPU, which also happens to be present in the Mega Drive, primarily for controlling the sound output. | | | Well known from the Commodore Amiga 500, the Mega Drive is powered by a Motorola MC68000 CPU and a Zilog Z80a is used to act as a co-processor. | | | It has two Hitachi 32-bit RISC processors at 23 MHz and an additional, digital stereo PCM sound chip (adding to those of the Mega Drive). |
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http://www.skillreactor.org/tutortxt/megadrv
(6875 words)
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| | Processors: MC68000 |
| | The MC68000 was cloned by several manufacturers and these clones can often be found in Amiga's. | | | Although primarily the 8Mhz component was used, higher rate 68000s have been used on several accelerators. | | | The MC68000 does not support an external MMU, or FPU. |
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http://www.amiga-hardware.com/showhardware.cgi?HARDID=1467
(160 words)
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| | ch6xtra |
| | RTN Description of a Typical MC68000 Arithmetic Instruction | | | • Example: MC68000 has a total 24-bit address space. | | | reserved for I/O: Memory Mapped I/O in the MC68000 |
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http://www.scs.ryerson.ca/~vkushnir/ch6xtra.htm
(2316 words)
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| | www.atari-forum.com :: View topic - The Atari MC68000 Tutorials |
| | I have written 15 tutorials in all, taking you from the beginning steps to a somewhat intermediate level of programming skills in assembly language on the Atari ST(e). | | | Powered by phpBB © 2001, 2005 phpBB Group | | | www.atari-forum.com :: View topic - The Atari MC68000 Tutorials |
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http://www.atari-forum.com/viewtopic.php?t=4330
(1221 words)
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| | Documento sin título |
| | Arquitectura y programación de un procesador de 16 bits : MC68000. |
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http://www.uned.es/ca-bergara/ppropias/Morillo/web_etc_I/tema13_14.htm
(11 words)
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| | LEGEND ELECTRONICS -Worldwide Independent Distributor Motorola MC68000 , MC6800 , MC68HC7 , MC68HC8 MC68EC , MC68HC11 , ... |
| | LEGEND ELECTRONICS -Worldwide Independent Distributor Motorola MC68000, MC6800, MC68HC7, MC68HC8 MC68EC, MC68HC11, MC68EN360ZP25K MC68EN, MC68B50, MC68HR, MC68HRC, MC68HC11, MC68HC908GP, MC68HC705, MC68SEC8 MC68HC7 parts |
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http://www.legendny.com/Legend_Stock/mc
(51 words)
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| | Epson Electronics America |
| | Hitachi SH-3 Hitachi SH-4 ISA-Bus Motorola MC68000 Motorola MC68030 80xx-series NEC MIPS VR41xx No WAIT CPU Philips MIPS PR31500/PR31700 Toshiba TX39xx | | | Hitachi SH-3 Hitachi SH-4 ISA-Bus Motorola MC68000 Motorola MC68030 80xx-series Motorola Power PC MPC82x MPU with READY NEC MIPS VR41xx PC Card Philips MIPS PR31500/PR31700 StrongARM Toshiba TX39xx | | | Epson S1C33 Hitachi SH-3 Hitachi SH-4 ISA-Bus Motorola Coldfire Motorola Dragonball Motorola MC68000 Motorola MC68030 80xx-series Motorola Power PC MPC82x Motorola REDCAP2 MPU with READY MPU with no READY NEC MIPS VR41xx |
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http://www.eea.epson.com/go/ParamSearch/zm_searchForm?parent_id=EEA.IC.ASSP.Display_IC.LCD_Controllers
(195 words)
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