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	WDC 65816/65802 - Wikipedia, the free encyclopedia
		The WDC 65816 (also: 65C816), a 16-bit microprocessor CPU developed by the Western Design Center (WDC), is an expanded and compatible successor to the venerable MOS Technology 6502.
		As of 2006 it is still sold by WDC, and the architecture has also been implemented as an IP core in some systems, such as Winbond's W55V9x series of TV Edutainment ICs.
		The 65802 was produced by WDC and GTE during the mid-to-late 1980s and early 1990s.
	en.wikipedia.org /wiki/Western_Design_Center_65816 (706 words)

	Software Development Tools
		WDC has created many of the library functions usually found only with C Compilers for the 65xx Assembler.
		In addition, WDC provides library functions that are generally useful for creating a broad range of systems and applications.
		WDC has a broad range of library functions available in assembly language.
	www.wdesignc.com /wdc/slib.cfm (240 words)

	Western Design Center - W65C816S (Site not responding. Last check: 2007-10-30)
		WDC was founded in 1978 by co-holder of the MOS Technology 6502 patent, Bill Mensch, himself a former MOS employee.
		In addition to the actual microchips, WDC offers chips designs in the form of IP cores to be used inside other chips (like ASICs), and provides ASIC and embedded systems consulting services revolving around their processor designs.
		WDC also makes C compilers, assembler/linker packages, simulators, development/evaluation boards, and in-circuit emulators for their processors.
	userpages.umbc.edu /~as4/index.php?show=1 (474 words)

	[No title] (Site not responding. Last check: 2007-10-30)
		There has been only one major redesign of the '816 from 1986 to present, and that is the '816S that is generally known to WDC fans as the "14MHz" chip.
		In order to guarantee being able to run at a higher speed, WDC has to test the chip, which is where cost is going to be incurred.
		WDC contracts an outside testing facility to verify 20MHz operation.
	www.apple2.org.za /gswv/A2.2000/Sept.Preview/GS.WISDOM/GS.CPU.10Mhz.txt (610 words)

	The 6502 Instruction Set Decoded (Site not responding. Last check: 2007-10-30)
		The bit manipulation instructions found only on the Rockwell and WDC versions of the 65C02 are not included in the table, nor are the "undocumented" instructions of the original 6502.
		The bit set and clear instructions have the form xyyy0111, where x is 0 to clear a bit or 1 to set it, and yyy is which bit at the memory location to set or clear.
		Similarly, the test-and-branch instructions are of the form xyyy1111, where x is 0 to test whether the bit is 0, or 1 to test whether it is 1, and yyy is which bit to test.
	axis.llx.com /~nparker/a2/opcodes.html (1503 words)

	Apple II History Museum - Articles
		It was Mensch who spearheaded a re-creation of the 6502 processor into the lower-powered 65c02, which included the additional assembly language opcodes that made it possible to "crunch" the ROM code in the Apple IIc small enough to fit in its additional built-in functions without excessively complicating the design or coding.
		In 1983, WDC extended the architecture of the 65C02 to 16 bits with the 65C816, which was used in the Apple IIgs.
		The 65C816 is at the heart of the Super Nintendo, and Franklin Electronic Publishing uses the 65C02 in its Language Translator and the 65C816 in its Digital Book System.
	apple2history.org /museum/articles/microreport/microreport.html (1149 words)

	:: drac030.atari8.info
		WDC 65C816S, or shortly 65c816, is a microprocessor designed and produced by Western Design Center.
		The difference between 6502 and 65c816 is that while the former one is a fully 8-bit CPU, the latter one, eventhough it is equipped with 8-bit data path to the memory, has an internal structure that allows 16-bit data processing.
		The instructions with the arguments of the value from $80 to $FF are reserved by the WDC for future usage, possibly for new instructions.
	drac030.krap.pl /en-specyfikacja.php (6094 words)

	W65C816S 16-bit Microprocessor
		WDC's high volume production proven 65xx brand microprocessor family of manually designed GDSII hard cores are highly optimized cores that are small and low power and therefore an excellent choice for low power System-on-Chip (SoC) ASIC microcontroller designs.
		The WDC W65C816S 8/16-bit microprocessor is software compatible with the 8-bit NMOS and CMOS 6500-series predecessors.
		To aid in system development, WDC also provides the 65xx Development Tools suite, developer boards and design kits.
	www.westerndesigncenter.com /wdc/w65c816s.cfm (449 words)

	6502.org: Commercial Support
		WDC has been a pioneer in the licensing of microprocessor intellectual property (IP) cores for FPGA and ASIC development.
		The Western Design Center - WDC offers Hardware Development Tools which includes a developer board for each of our microprocessors and microcontrollers.
		WDC also offers Software Development Tools, which includes a C Compiler, Assembler, Linker, and Debugger, that supports all of WDC's microprocessors and microcontrollers.
	www.6502.org /commercial (499 words)

	::: The Prometheus SBC (Single Board Computer) ::: (Site not responding. Last check: 2007-10-30)
		It is not, by any means, the simplest minimum system required to run, but rather, a system, that is useful and powerful enough to be able to be used for a wide variety of tasks.
		Prometheus consists of a WDC 65c816 processor running at 14.000Mhz on a separate CPU-module.
		The system is designed to be able to be run either by WDC 65c02 or WDC 65c816 processors by the use of a separate CPU-module on which the CPU is located while rest of the system is on a separate board.
	user-200-168.kanetti.fi /janik/sbc/index.php (321 words)

	search.com - 65816 Microprocessor (Site not responding. Last check: 2007-10-30)
		The 65816 Microprocessor (also: 65C816), a 16-bit CPU developed by the Western Design Center (WDC), is an expanded and compatible successor to the venerable MOS Technology 6502.
		As of 2005 it is still sold by WDC.
		A 6502 pin compatible version of the 65816 was also produced by WDC called the 65802 (also: 65C802) which had restricted memory addressing due to pin compatibility limits, but was otherwise identical.
	domainhelp.search.com /reference/65816_Microprocessor (213 words)

	noral - debugging tools (Site not responding. Last check: 2007-10-30)
		WDC, the original source and Intellectual Property (IP) owner of the patented 65C02
		WDC licensees include foundries, library, design service and system companies.
		WDC's IP market development program, the Core Alliance Program (CAP), of which Noral is a charter member, provides an alignment with companies whose services and products complement WDC's microprocessor IP.
	www.noral.com /pages/wdc.htm (103 words)

	[No title] (Site not responding. Last check: 2007-10-30)
		/* Mitsubishi M37702/37710 CPU Emulator The 7700 series is based on the WDC 65C816 core, with the following notable changes: - Second accumulator called "B" (on the 65816, "A" and "B" were the two 8-bit halves of the 16-bit "C" accumulator).
		- The 65C816 preserves the upper 8 bits of A when in 8-bit M mode, but not the upper 8 bits of X or Y when in 8-bit X. The 7700 preserves the top bits of all registers in all modes (code in the C74 BIOS starting at d881 requires this!).
		The various 7700 series models differ primarily by their on board peripherals.
	www.mameworld.net /maws/mamesrcdl/src/cpu/m37710/m37710.c (541 words)

	wdc (Site not responding. Last check: 2007-10-30)
		WDC, the original source and Intellectual Property (IP) owner of the patented 65C02 8-bit and 65C816 16-bit microprocessors, has been an IP Provider since 1981.
		Chip, developer boards and a software development systems are available for system-chip development.
		WDC's IP market development program, the Core Alliance Program (CAP), provides an alignment with companies whose services and products complement WDC's microprocessor IP.
	www.astdesign.com /wdc.htm (99 words)

	65816 - WDC 65816/65802 definition of WDC 65816/65802 in computing (Site not responding. Last check: 2007-10-30)
		WDC 65816/65802 definition of WDC 65816/65802 in computing
		Computer term of WDC 65816/65802 in the Computing Dictionary.
		If you have been a 6502 programmer for long, the advantages of the 65816 will Regardless of CPU operating speed (mhz) a the 65816 will operate a bit
	xn--lhq.com /xnlh/65816.html (187 words)

	Super Nintendo Entertainment System - Wikipedia Light!
		Core: Nintendo custom '5A22', believed to be produced by Ricoh; based around a 16-bit CMD/GTE 65c816 (a predecessor of the WDC 65C816, used by the Apple II personal computer).
		SA-1 chip: This is an ASIC chipset with a 65c816 8/16-bit processor core, clocked at 10MHz, containing some extra circuitry specified by Nintendo, including some fast RAM, a memory mapper, DMA, several programmable timers, and the region lockout chip.
		The SA-1 was a multipurpose chip that allowed games such as Kirby Super Star, Kirby's Dream Land 3, and Super Mario RPG to stay competitive in the changing marketplace during the aging SNES/SFC's final years.
	godseye.com /wiki/index.php?title=SNES (3928 words)

	.,;: Welcome to my World :;,. (Site not responding. Last check: 2007-10-30)
		It has fully decoded address space of full 16 MBytes out of which the lowest 64 kBytes is being reserved for system use.
		In addition to the processor, the SBC has two WDC 65c22 I/O chips, a Dallas RTC (Real-Time Clock) and Intel 16550 chip.
		These implement the other main features of this board: a full 16-bit IDE interface, rs232 serial port, centronics parallel port, two Atari-style joystick ports and a ps/2 keyboard interface.
	user-200-168.kanetti.fi /janik/index.php?page=sbc1 (253 words)

	Overclock - Kotaku
		From the We Overclock Because We Can department, Robert Ivy has managed to overclock his Super Nintendo to a scorching 7.6 Mhz!
		Robert's account is full of Star Trek techno babble about crystal oscillators and the like: "This CPU is manufactured by Ricoh, and is a modified version of the WDC 65c816 that runs at a maximum speed of 3.58 MHz (software selectable multiplier).
		We will be going by the maximum speed for sake of confusion ;).
	www.kotaku.com /gaming/overclock (185 words)

	Sothius' Home of Ancient Microcomputers - Super Nintendo Entertainment System (SNES)
		The SNES; in front of it, you can see part of a control-pad
		True 16 bit version of the WDC 65C02, a 6502-compatible design by Western Design Center.
		The 65C816 goes even further, since it features an additional multiply function and
	www.sothius.com /hypertxt/snes.html (160 words)

	Nintendo Snes (Site not responding. Last check: 2007-10-30)
		The NES and SNES are likely to command legions of fans in many years to
		comeCPU: WDC 65C816 16 bit processor running at 4.1 MHz, with 64 KiB of
		RAM Sound CPU: 8-bit Sony SPC700 running at the time, Nintendo did not do well inEurope, particularly due to the distribution problems.
	www.fusiongames.co.uk /pages/nintendo_snes.php (210 words)

	Kids.Net.Au - Encyclopedia > Super Nintendo Entertainment System
		It is the sucessor to the Nintendo Entertainment System and Nintendo's answer to the Sega Genesis.
		CPU: WDC 65C816 16 bit processor running at 2.68 MHz or 3.58 MHz, with 128 KiB of RAM
		Sound CPU: Sony SPC700 running at 4.1 MHz, with 64 KiB of RAM
	kids.net.au /encyclopedia-wiki/su/Super_Nintendo_Entertainment_System (405 words)

	Western Design Center - Microprocessor - Microcontroller - IP - 8 and 16-bit CMOS
		Western Design Center - Microprocessor - Microcontroller - IP - 8 and 16-bit CMOS
		Welcome to The Western Design Center, Inc. (WDC)
		We are the Original Microprocessor Intellectual Property (IP) provider and Fabless Semiconductor Company specializing in 65xx Brand Microprocessor technology for over 28 years.
	www.westerndesigncenter.com (91 words)

	Emulanium.com - SNES emulators -
		Despite its relatively late start, the SNES became the best selling console of the 16-bit era but only after its competitor Sega had pulled out of the 16-bit market to focus on its 32-bit next generation console.
		CPU: Nintendo custom '5A22', believed to be produced by Ricoh; based around a 16-bit CMD/GTE 65c816 (a predecessor of the WDC 65C816, used by the Apple IIGS personal computer) with NES sound 2a03 core.
		The SNES/SFC provided the CPU with 128 KB of Work RAM.
	www.emulanium.com /snes.php (316 words)

	6502-65816 Adapter Board (Site not responding. Last check: 2007-10-30)
		There has been some interest in using a WDC 65C816 processor in a system that was designed for a 6502.
		However, the two are not pin for pin compatible.
		PLEASE NOTE: I have not actually built or tested this design.
	www.6502.org /mini-projects/816conv/conv.html (158 words)

	Brujula.Net - Your Latin Stating Point (Site not responding. Last check: 2007-10-30)
		CPU: Nintendo custom '5A22', believed to be produced by
		Ricoh; based around a 16-bit CMD/GTE 65c816 (a predecessor of the
		The CPU runs the 65c816-alike core with a variable-speed bus, with bus access times determined by addresses accessed, with a maximum theoretical effective clock rate around 3.58
	www.brujula.net /english/wiki/Super_Nintendo_Entertainment_System.html (1584 words)

	The Oric Site
		I don't have this pcb but I think it's not difficult...
		The new oric use 65C816 of WDC (Western Design Center) and FPGA.
		If the 65C816 doesn't exist, we can build a compatible-65C816 with FPGA.
	www.oric.org /index.php?page=community&fille=forum&s_fille=lire&nbnonlus=&forum=2 (583 words)

	Video Game Systems - Information, specs, and history. NES-PS3!
		There were many very popular games for the Super Nintendo, including Super Mario World, Yoshi's Island, Mario RPG, and Zelda A Link To The Past.
		CPU: WDC 65C816 16 bit processor running at 3.58 MHz, with 16 KB of RAM
		The Sega Saturn was designed to be the ultimate 2D system, but since Sony had just released their plans to enter the video game market, Sega decided to improve the hardware in the Saturn to make a more powerful system that could compete against anything Sony might release.
	www.videogames101.net /videogame.htm (4083 words)

	Nintendo SNES
		The NES and SNES are likely to command legions of fans in many years to come.
		CPU: WDC 65C816 16 bit processor running at 1.79, 2.68 MHz, or 3.58 MHz (Changeable), with 128 KiB of RAM
		Sound CPU: 8-bit Sony SPC700 running at 4.1 MHz, with 64 KiB of RAM, PC file name extension:.SPC
	www.megalong.com /games/platform.asp?pid=6 (1293 words)

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