The 65816 instructions mvn and mvp use two eight bit parameters, the only instructions in the entire instruction set to do so. ricoh 5a22 instruction set. Values and addresses can be expressed either as. Web. AdmiralPoopyDiaper • 1 day ago. Choose a language:. Carry, overflow and negative signals are generated. The W65C02S instruction set is not downward compatible with the W65C816 16-bit . The W65C816S (also 65C816 or 65816) is an 8/16-bit microprocessor (MPU) developed and sold by the Western Design Center (WDC). For the SNES, they consist of a 1-byte opcode followed by a 0-3 byte operand. No 65816 opcodes (default). Our minimal 32k cartridge will appear in rom from $8000, and execution will start there, the CPU will default in 8 bit mode. m8 ; tell the assembler about it. See also:. Description: X816 is an assembler that generates machine code for the Super NES, or more specifically the 65816. pdf Thank you for this. Log In My Account ql. Imagine you don't know what sticky tape is, so you use glue and staples. wv; xs. This is the VDC. Written for Apple IIGS programmers of every level of experience, COM PUTE!'s Apple lIGS Machine Language for Beginners is the most complete guide and reference to 65816 programming around. 65816 fixes them . The first byte of the next instruction is considered 0. but as usual, things have a way of becoming twice as interesting as I expected. The 65C816 was the CPU for the Apple IIGS. Older versions of xa took a single 16-bit absolute value. Branch InstructionsEdit ; BCS, Branch if Carry flag is set (C=1) ; BNE, Branch if not equal (Z=0) ; BEQ, Branch if equal (Z=1) ; BPL, Branch if plus (N=0) ; BMI . Or a SNES dev. Search this website. Most of the code you mention would need to be significantly modified if you wanted to take advantage of the 65816's enhancements. The 65816 is intended as an upgrade path to existing 6502 customers. The 65816 instructions mvn and mvp use two eight bit parameters, the only instructions in the entire instruction set to do so. Older versions of xa took a single 16-bit absolute value. Two sets are said to be equivalent if they have the same number of elements in each set. The W65C816S (also 65C816 or 65816) is an 8/16-bit microprocessor (MPU) developed and sold by the Western Design Center (WDC). Older versions of xa took a single 16-bit absolute value. would have a radically different set of lowering rules from the 6502. ex; hf. Tap on Unpin. 65816 Reference - Internal Registers, Addressing Modes, Instructions, Datasheets,. View the job description, responsibilities and qualifications for this position. 7, the standard syntax is now accepted and the old syntax is deprecated (a warning will be generated). Uzebox is a modern example of some feeling 8 bits is enough for gaming. The 65816 instructions mvn and mvp use two eight bit parameters, the only instructions in the entire instruction set to do so. It also includes an emulation mode for executing 65C02 and NMOS 6502 code. This is easily accomplished using linker options to set the RAM and ROM . view source. I don't have time to modify the BASIC to take advantage of the 65816 instruction set and expand the built-in assembler, but it should run pretty fast. Web. Web. Introduced in 1985, [1] the W65C816S is an enhanced version of the WDC 65C02 8-bit MPU, itself a CMOS enhancement of the venerable MOS Technology 6502 NMOS MPU. Competitive set is a marketing term used to identify the principal group of competitors for a company. yb; yc. Web. ricoh 5a22 instruction set. -c Produce o65 object files instead of executable files (no linking performed); files may contain undefined references. View current unit test coverage with nose2 --with-coverage or nose2 --with-coverage --coverage-report html for a detailed html report. Because the 65816 is so small in die size on a 1990 process, it can fit alongside the memory controller on a single die, eliminating the need for a separate bus arbiter chip. English, Instruction Examples, Tutorials, Reference, Books, . . As a matter of course, this survey naturally embraces the instruction sets of the 6502 and 65C02 as well. 16 data bank register (dbr) 3. There is no part of the core where a 16-bit. I've been learning MIPS assembly for about 2 weeks now at uni and wanted to share how i've implemented a simple matrix multiplication function in MIPS. Each operation may have more than one addressing mode available to it; these are detailed for each instruction. The use of relocatable code on the 6502 was extremely limited. Though if using that could do 15 transfers every cycle, giving >50MB/s with a 16-bit chip:) The motherboard could have an option to cannibalize an Atari for custom chips and also we could build some new pin compatible ic boards. And you are happy with glue and staples. Web. xs set 8-bit operands for the accumulator and index registers, respectively, and. As a matter of course, this survey naturally embraces the instruction sets of the 6502 and 65C02 as well. Find many great new & used options and get the best deals for Star Wars Micro Machines Play Set BOBA FETT / CLOUD CITY 65816 Boxed (1996) at the best online prices at eBay!. $1a is inc a, or ina, which constitutes a single-byte instruction with no operand that tells the cpu to increment the contents of the accumulator. Is set to the bank of the destination address . Set the page length for the listing. The logic in my approach was (again) to have switch-case and pass the individual addressing modes to the instructions functions, if necessary. This tutorial deals with native only. STP shuts the processor down until a hardware reset. Aug 19, 2018 · As I've been learning the 65816 instruction set for this project, I thought I knew what I was getting into. Programming the 65816 Including the 6502, 65C02, and 65802. yae miko vrm. At starting very strange things were happening: sometimes did not happen boot or froze everything, even if the code was correct. Web. Machine coding is when you enter 6502 (65816,. The 65816 again comes with a set of addressing mode, quite a few which are already familiar from the 6502. When clear all arithmatic is binary 2s complement (ie. Web. Web. The SNES 's 16-bit CPU was based on 6502 architecture. ricoh 5a22 instruction set. org, participants will develop and solidify their knowledge of being a Product. • Chapter 5: Instruction Set describes the main processor’s instruction set, including notation, load and store instructions, computational instructions, and jump and branch instructions. While incompatible with the 65802/65816 family expansion, the Rockwell 65C02's bit manipulation and testing instructions can be valuable for control applications, in which single bits are used to store boolean true/false values and to send signals to external devices. The 65C816 was the CPU for the Apple IIGS and. Most of the code you mention would need to be significantly modified if you wanted to take advantage of the 65816's enhancements. Older versions of xa took a single 16-bit absolute value. 7 P Flag instructions 2. Part Three is devoted to a step by step survey of all 92 different 65816 instructions and the 25 different types of addressing modes which, together, account for the 256 operation codes of the 65802 and 65816. The default is a. Ever present (mainboard). There are Instruction Sheets under the Employment. From multiplication and Bresenham to binary trigonometry. The W65C816S (also 65C816 or 65816) is an 8/16-bit microprocessor (MPU) developed and sold by the Western Design Center (WDC). The use of relocatable code on the 6502 was extremely limited. Mar 11, 2016 · Unless you actually know and understand the weird kinks in the 65816 instruction set, I doubt that you're going to be able to understand the darned code anyway, even with a "[]" or a "{}" or whatever you choose to put in there. I'm learning a bunch, however, and I thought that I'd throw out some discoveries and tips as I learn the proce. Values and addresses can be expressed either as. Allow 65816 opcodes. $00FC09, Set bit, Enable secondary flash memory in the range $F00000-$F7FFFF. Some known issues/limitations for the 65816 simulation: I use nose2 to evaluate test coverage. The only instructions remaining are the interrupt and status register control instructions, listed in Table 13. There is no part of the core where a 16-bit. Only one byte can be saved by the substitution of an unconditional branch instruction for the jump instruction, for a total byte count of 32. Web. Web. a Understand that multiplication is extended from fractions to rational numbers by requiring that operations continue to satisfy the properties of operations, particularly. Unless you actually know and understand the weird kinks in the 65816 instruction set, I doubt that you're going to be able to understand the darned code anyway, even with a "[]" or a "{}" or whatever you choose to put in there. -c Produce o65 object files instead of executable files (no linking performed); files may contain undefined references. Apply for the Job in Dispatcher (Full-time) at Ulysses, NE. 6 Interrupt instructions 2. Instruction set of the MOS 6502/6507/6510 MPU. PLB pulls an eight-bit value from the stack into the data bank register. Introduced in 1985, [1] the W65C816S is an enhanced version of the WDC 65C02 8-bit MPU, itself a CMOS enhancement of the venerable MOS Technology 6502 NMOS MPU. Web. The cc65 instruction set only supports the WAI (Wait for Interrupt) and STP (Stop) instructions when used with the 65816 CPU (accessed via the --cpu command . Imagine you don't know what sticky tape is, so you use glue and staples. Due to conflicts between the R65C02 and 65816 instruction sets and undocumented instructions on the NMOS 6502, their use is discouraged. Machine coding is when you enter 6502 (65816,. CPU Functions Decimal Mode Decimal Mode operations differ in the three. I was hoping how many algorithms from codebase64. PLB pulls an eight-bit value from the stack into the data bank register. Dec 09, 2021 · The 5A22 consists of a stock 65816 core licensed from WDC combined with a memory controller capable of DMA and HDMA. The x86 instruction set architecture has evolved over time by: as well as the expansion to 64-bits. I don't have much love for WDC or for the 65816. For example, the instruction ADC $3a occupies 2 bytes in memory, and if assembled, it would be stored as E6 3A. Machine coding is when you enter 6502 (65816,. 65816 Reference - Internal Registers, Addressing Modes, Instructions, Datasheets,. The Instruction Sets This chapter devotes a page to each of the 94 different 65816 operations. The total cycles taken by each instruction agree with bsnes/higan, but the order of operations for many instructions (particularly complex ones like the calls) is completely different. . Web. Operations which read 65816 specific registers will read a zero in that case, and write operations to those registers will be NOPs. The breadth of the. Purdue center Zach Edey dunks against Gonzaga guard Hunter Sallis, right, during the first half of an NCAA college basketball game in the Phil Knight Legacy tournament Friday, Nov. 10 native mode registers 3. The W65C816S is an enhanced version of the WDC 65C02 8 bit MPU itself a C Wiki eduNitas. Web. Most of the code you mention would need to be significantly modified if you wanted to take advantage of the 65816's enhancements. addressing modes The 65816 again comes with a set of addressing mode, quite a few which are already familiar from the 6502. 8 Stack Instructions. 29 instruction opcodes added to the original 6502 instruction set. The psuedo-code described in this document does not describe the 65816 internals but rather the change in machine state. 29 lip 2008. The symbols in Table 18. -o filename Set output filename. Branch InstructionsEdit ; BCS, Branch if Carry flag is set (C=1) ; BNE, Branch if not equal (Z=0) ; BEQ, Branch if equal (Z=1) ; BPL, Branch if plus (N=0) ; BMI . Pushing the Clock button before using the Menu Select/Time Adjust button to choose the hour and minute completes the process of setting the clock on the Oster OMW991 microwave. With 24 bit addressing of up to 16 Megabytes of RAM, the powerful 65816 is a logical upgrade that leaves 6502 programmers feeling right at home. The system runs a custom version of BASIC and supports commodore compatible IEC disk drives. The 65C816 is an 8/16-bit processor released in 1983. i mean the SNES had a port of DOOM, with a main CPU (65816 @ 3. Web. 38,420 The Ashford of Grove City By jobs available on Indeed. Web. 7, the standard syntax is now accepted and the old syntax is deprecated (a warning will be generated). X816 is an assembler that generates machine code for the Super NES, or more specifically the 65816. The 65816 again comes with a set of addressing mode, quite a few which are already familiar from the 6502. yae miko vrm. Native and (6502) emulation mode. The 65816 instructions mvn and mvp use two eight bit parameters, the only instructions in the entire instruction set to do so. This document is intended to aid those programming the 65816 Processor from The Western. All CPUs have instruction sets that enable commands directing the CPU to switch the relevant transistors. The sign flag is set (minus) after loading $99 (a negative two's-complement number). Ok for provider and its affiliates to leave automated messages with instructions or healthcare information Work / Other phone. I'm learning a bunch, however, and I thought that I'd throw out some discoveries and tips as I learn the proce. 4 cze 2017. Wikipedia has related information at 65816 Contents 1 Internal Registers 1. org would benefit from keeping the same syntax while using 16 bit integers. Overflow (V) Set when there is a borrow or carry out of an operation. · NEW INSTRUCTIONS · Leave a Reply . The 65816 instructions mvn and mvp use two eight bit parameters, the only instructions in the entire instruction set to do so. The system runs a custom version of BASIC and supports commodore compatible IEC disk drives. Enable the 65816 instruction set. If you're intimidated by the '816, you can initially program it just like a 6502, then add new instructions and addressing modes and use the wider registers little by little as you're comfortable. 3 Transfer Instructions 2. Most of the code you mention would need to be significantly modified if you wanted to take advantage of the 65816's enhancements. Log In My Account vj. Web. WDC 65C02. 65C816 Memory Map At this time i use an eprom emulator for upload the code while programming the bios. The assembler now handles all 65816 instructions, which is good. 01 native mode processor status register 3. Unless you actually know and understand the weird kinks in the 65816 instruction set, I doubt that you're going to be able to understand the darned code anyway, even with a "[]" or a "{}" or whatever you choose to put in there. X816 is an assembler that generates machine code for the Super NES, or more specifically the 65816. Web. Web. X816 is based mainly on the assemblers seen on the C64/128 but with a few additions to bring it up to speed for the SNES. The 65816 physically has an 8-bit ALU, though many of the internal registers are now 16 bits wide. Older versions of xa took a single 16-bit absolute value. I assumed 4510 was 65816 compatible, which instruction set I haven't studied either but I think it has 16 bit registers and memory access. Web. lv pf. X816 is based mainly on the assemblers seen on the C64/128 but with a few additions to bring it up to speed for the SNES. Web. For example, to set the X bit for 8 bit user registers: SEP #%00010000 ; set bit 4 for 8-bit index registers. view source. PLB pulls an eight-bit value from the stack into the data bank register. The 5A22 consists of a stock 65816 core licensed from WDC combined with a memory controller capable of DMA and HDMA. The 65816 again comes with a set of addressing mode, quite a few which are already familiar from the 6502. WDC 65C02. This is the last chapter that introduces new instructions; almost the entire 65816 instruction set, and all of the addressing modes, have been presented. The 65C816 was the CPU for the Apple IIGS and. Web. a 6502 is a 6502. Three-stage pipeline: Execution of instructions are divided into three steps or stages. After writing the system monitor and had intercepted the BRK instruction,. Choose a language:. The former empty bit 5 is now filled with the M bit to specify the accumulator and memory access as 8- or 16-bit. However, the 65816 lacks a swap-stack-pointer instruction, so this approach is not cost effective. This routine takes advantage of the fact that the 65C02 and 65816 set the sign flag correctly in the decimal mode, while the 6502 does not. An instruction-by-instruction test suite for the 6502, 65c02 and 65816 that includes bus activity. Web. This routine takes advantage of the fact that the 65C02 and 65816 set the sign flag correctly in the decimal mode, while the 6502 does not. This is the only means of setting the M and X status register bits. linuxcnc ethernet controller. The symbols in Table 18. Introduced in 1985, [1] the W65C816S is an enhanced version of the WDC 65C02 8-bit MPU, itself a CMOS enhancement of the venerable MOS Technology 6502 NMOS MPU. Once again, due to the design nature of the MOS 6502 processor ,. Most instructions that are at least 2 bytes long have more than one addressing mode. The 65816 instructions mvn and mvp use two eight bit parameters, the only instructions in the entire instruction set to do so. It is amazing how fast one can adapt to the new processor. The state of the X+Y registers does not affect commands which act on memory. Several new instructions are designed to help relocatable code that can execute at any address. For instance for proper ECS suppport, we'd need to open a 64Color EHB screen, do explicit 256->64 color palette reduction and use a chunky to planar routine that will do a translation on the fly. The address that will be readout or written is first written in $00FD4C. Since 2. As a matter of course, this survey naturally embraces the instruction sets of the 6502 and 65C02 as well. The 65816 adds one-byte push instructions for all its new registers, and pull instructions for all but one of them. PHB pushes the contents of the data bank register, an eight-bit register, onto the stack. tau empire codex 9th edition pdf download. Web. BBR Branch on Bit Reset. Search this website. Web. The assembler now handles all 65816 instructions, which is good. We and our partners store and/or access information on a device, such as cookies and process personal data, such as unique identifiers and standard information sent by a device for personalised ads and content, ad and content measurement, and audience insights, as well as to develop and improve products. Since 2. 1 are used to express the different kinds of values that instruction operands may have. twinks on top, guy in the next stall
The W65C816S (also 65C816 or 65816) is an 8/16-bit microprocessor (MPU) developed and sold by the Western Design Center (WDC). . 65816 instruction set
The W65C816S (also 65C816 or 65816) is a 8-bit/16-bit microprocessor (MPU) developed and sold by the Western Design Center (WDC). 65c816 ASM consists of approximately 91 mnemonics, where most of them has different addressing modes. While incompatible with the 65802/65816 family expansion, the Rockwell 65C02's bit manipulation and testing instructions can be valuable for control applications, in which single bits are used to store boolean true/false values and to send signals to external devices. The 65816 ISA: The debuting 16-bit instruction of the 65C816. X816 supports the complete 65816 instruction set and all of its addressing modes. The 65186 is a true 16 bit CPU, but it has a 6502 compatibility mode, in which it works exactly like a 6502, and we can perform basic SNES programming without even using a 16 bit command!. World " article by Brett Tabke ; includes CMD's instruction set summary. 6 Interrupt instructions 2. An instruction-by-instruction test suite for the 6502, 65c02 and 65816 that includes bus activity. For example, the instruction ADC $3a occupies 2 bytes in memory, and if assembled, it would be stored as E6 3A. 16 bit. 65802 and 65816 Multiplication. The default is a. Have you ever coded for a 65816? They are rare which is the issue, either you would have to be an Apple IIgs dev who didn't care about the rest of the Apple II range and hence would use it out of emulation mode. . The Instruction Sets This chapter devotes a page to each of the 94 different 65816 operations. The W65C816S (also 65C816 or 65816) is an 8/16-bit microprocessor (MPU) developed and sold by the Western Design Center (WDC). The W65C816S (also 65C816 or 65816) is an 8/16-bit microprocessor (MPU) developed and sold by. Well, the 65816 has actually 2 modes. Mar 11, 2016 · Unless you actually know and understand the weird kinks in the 65816 instruction set, I doubt that you're going to be able to understand the darned code anyway, even with a "[]" or a "{}" or whatever you choose to put in there. The 65C816 was the CPU for the Apple IIGS and. Web. Web. Pinning a message in a group chat can be more than useful if there are plenty of new messages coming in daily. The default is a. The default is a. For example, the instruction ADC $3a occupies 2 bytes in memory, and if assembled, it would be stored as E6 3A. Competitive sets are used for benchmarking purposes, market penetration analyses and to help develop positioning strategies. Several new instructions are designed to help relocatable code that can execute at any address. Wikipedia has related information at 65816. I've been learning MIPS assembly for about 2 weeks now at uni and wanted to share how i've implemented a simple matrix multiplication function in MIPS. Web. Aug 19, 2018 · As I've been learning the 65816 instruction set for this project, I thought I knew what I was getting into. And you are happy with glue and staples. Choose a language:. The default is a. LLX > Neil Parker > Apple II > 6502 Instruction Set. This flag is unchanged by interrupts and is. The 6502 has a lot of quirks and annoyances in its instruction set. Since 2. 24-bit addressing), with instructions that operate on 8-bit and 16-bit data. A planned Synertek SY6516 was never released. The value may be "unlimited", or in the range 32 to 127. In fact, the bank registers can only be accessed using the stack. org would benefit from keeping the same syntax while using 16 bit integers. The sign flag is set (minus) after loading $99 (a negative two's-complement number). 11=Z) and “b” decides whether the branch is taken on a set or a clear flag. The JMP (addr) instruction will always read the new program counter from Bank . Pin Eight | Twitter | GitHub | Patreon Señor Ventura. 1 Arithmetic and Logical Instructions 2. The default is a. When one is added to BCD 99, the result is BCD 0, a positive two's-complement number. Web. PDF Télécharger [PDF] The Art of Assembly Language - IC/Unicamp 65c816 cmp CMP Compare Memory and Accumulator 49 The BRK instruction for the NMOS 6502, 65C02 and 65C816 is actually a 2 byte instruction The NMOS 6502 65C02 Addressing Modes on the 65816 CMP Compare accumulator with memory CPX Compare index register X with memory CPY Compare index Aug 65c816 pinout,65c816 datasheet,65816. Aug 26, 2022 · The psuedo-code described in this document does not describe the 65816 internals but rather the change in machine state. The W65C816S (also 65C816 or 65816) is an 8/16-bit microprocessor (MPU) developed and sold by the Western Design Center (WDC). hottest anime. Full instructions may be known as words. Keeping it 8 bit was a sensible decision from a user view as it offers Easy upgrade of existing designs Fully compatible with existing software Standard 40 pin package needs less thru holes and offers cheaper handling Only a single latch is needed to use the extended address range. Since 2. an enhanced instruction set, and a 16 bit stack pointer, as well as several new electrical signals for improved system hardware management. mq; do. Dec 11, 2019 · The 65816 physically has an 8-bit ALU, though many of the internal registers are now 16 bits wide. which was designed to be portable, and as a OS development teaching tool. The 65186 is a true 16 bit CPU, but it has a 6502 compatibility mode, in which it works exactly like a 6502, and we can perform basic SNES programming without even using a 16 bit command!. Introduced in 1985, [1] the W65C816S is an enhanced version of the WDC 65C02 8-bit MPU, itself a CMOS enhancement of the venerable MOS Technology 6502 NMOS MPU. much faster clocks (as it required less clock cycles for the most instructions). I don't have much love for WDC or for the 65816. 65802 and 65816 Multiplication. When used, it will set the bits specified by the 1 byte immediate. The use of relocatable code on the 6502 was extremely limited. When one is added to BCD 99, the result is BCD 0, a positive two's-complement number. I use 65816 Programming Primer for instruction details (well I have a plain text version of it. PLB pulls an eight-bit value from the stack into the data bank register. 65816 emulator65c816 pinout. Written for Apple IIGS programmers of every level of experience, COM PUTE!'s Apple lIGS Machine Language for Beginners is the most complete guide and reference to 65816 programming around. STP shuts the processor down until a hardware reset. 6 Interrupt instructions 2. For example, the instruction ADC $3a occupies 2 bytes in memory, and if assembled, it would be stored as E6 3A. The use of relocatable code on the 6502 was extremely limited. Opcode WDM (#$42) is not used. Web. CPU clock rate. wv; xs. 16 bit. Web. 21 sie 2022. Web. In general, xa accepts the more-or-less standard 6502 assembler format as popularised by MASM and TurboAssembler. The 65C816 was the CPU for the Apple IIGS and. Dec 23, 1997 - To begin with, we want to thank the designer of the 65816, 65802, and 65C02, Bill The 6502 and 65C02 neither have nor need an instruction to set up the Jump to Instruction Set - Programming the 65816-Including the 6502, 65C02 and. 65c816 assembly has two opcodes dedicated to moving huge blocks of data from one memory location to. I'm learning a bunch, however, and I thought that I'd throw out some discoveries and tips as I learn the proce. -o filename Set output filename. The W65C816S (also 65C816 or 65816) is an 8/16-bit microprocessor (MPU) developed and sold by the Western Design Center (WDC). The W65C816S (also 65C816 or 65816) is a 8-bit/16-bit microprocessor (MPU) developed and sold by the Western Design Center (WDC). The NES CPU (and others) have no Below are some profiles of relative. The use of relocatable code on the 6502 was extremely limited. For example:. Competitive set is a marketing term used to identify the principal group of competitors for a company. Since 2. Web. With 16 megabytes of address space, writing relocatable code increases the overall utility of the program. I've been learning MIPS assembly for about 2 weeks now at uni and wanted to share how i've implemented a simple matrix multiplication function in MIPS. The W65C816S (also 65C816 or 65816) is an 8/16-bit microprocessor (MPU) developed and sold by the Western Design Center (WDC). If set, arithmetic is carried out in packed binary coded decimal. Older versions of xa took a single 16-bit absolute value. Web. 65816 Opcode matrix: imm = #$00 sr = $00,S dp = $00 dpx = $00,X dpy = $00,Y idp = ($00) idx = ($00,X) idy = ($00),Y idl = [$00] idly = [$00],Y. Operations which read 65816 specific registers will read a zero in that case, and write operations to those registers will be NOPs. Log In My Account vj. The 65186 is a true 16 bit CPU, but it has a 6502 compatibility mode, in which it works exactly like a 6502, and we can perform basic SNES programming without even using a 16 bit command!. The 65186 is a true 16 bit CPU, but it has a 6502 compatibility mode, in which it works exactly like a 6502, and we can perform basic SNES programming without even using a 16 bit command!. Interrupts and System Control Instructions. PHB pushes the contents of the data bank register, an eight-bit register, onto the stack. In emulation mode, the 65816 acts like its predecessor the 65C02. Dec 23, 1997 - To begin with, we want to thank the designer of the 65816, 65802, and 65C02, Bill The 6502 and 65C02 neither have nor need an instruction to set up the Jump to Instruction Set - Programming the 65816-Including the 6502, 65C02 and. The sign flag is set (minus) after loading $99 (a negative two's-complement number). The W65C816S (also 65C816 or 65816) is an 8/16-bit microprocessor (MPU) developed and sold by the Western Design Center (WDC). . pinterest photo downloader