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Interrupts in 65xx processors information


The 65xx family of microprocessors, consisting of the MOS Technology 6502 and its derivatives, the WDC 65C02, WDC 65C802 and WDC 65C816, and CSG 65CE02, all handle interrupts in a similar fashion. There are three hardware interrupt signals common to all 65xx processors and one software interrupt, the BRK instruction. The WDC 65C816 adds a fourth hardware interrupt—ABORT, useful for implementing virtual memory architectures—and the COP software interrupt instruction (also present in the 65C802), intended for use in a system with a coprocessor of some type (e.g., a floating-point processor).[1][2]

  1. ^ Cite error: The named reference Anderson was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference WDC1 was invoked but never defined (see the help page).

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Interrupts in 65xx processors

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all handle interrupts in a similar fashion. There are three hardware interrupt signals common to all 65xx processors and one software interrupt, the BRK...

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Interrupt

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Interrupt coalescing Interrupt handler Interrupt latency Interrupts in 65xx processors Ralf Brown's Interrupt List Interrupts on IBM System/360 architecture Time-triggered...

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Interrupt handler

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needed] Interrupt vector table Advanced Programmable Interrupt Controller (APIC) Inter-processor interrupt (IPI) Interrupt latency Interrupts in 65xx processors...

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WDC 65C22

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CMOS process technology for low power consumption 1.8V to 5V power supply W65C02 8-bit microprocessor W65C816S 16-bit microprocessor Interrupts in 65xx processors...

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MOS Technology 6510

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eight I/O lines. The NMI and RDY signals are not available. Interrupts in 65xx processors ST-251 schematic Butterfield, Jim (January 1983). "Commodore...

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Cop

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airline, ICAO designator COP COP, an interrupt in 65xx processors COPS (software), a UNIX security tool C Object Processor, a superset of the C programming...

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List of Intel processors

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This generational list of Intel processors attempts to present all of Intel's processors from the 4-bit 4004 (1971) to the present high-end offerings....

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MOS Technology 6502

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customers there to purchase the processors. At the suite, the processors were stored in large jars to imply that the chips were in production and readily available...

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CSG 65CE02

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revision. The 65CE02 was used in the Commodore A2232 serial port card for the Amiga computer. Interrupts in 65xx processors List of 6502 assemblers Megahertz...

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WDC 65C816

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65c816-based co-processor chip, in each cartridge. Foenix Retro Systems C256 U/U+ model and F256K model Interrupts in 65xx processors Mensch, William...

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WDC 65C02

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Mephisto MMV, Novag Super Constellation, Fidelity Elite (4–20 MHz) Interrupts in 65xx processors CSG 65CE02, a further enhanced version of the 65C02 Some sources...

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WDC 65C21

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in multiprocessor systems. The PIA interfaces to the 65xx microprocessor family with a reset line, a ϕ2 clock line, a read/write line, two interrupt request...

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Illegal opcode

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effect of many illegal opcodes, on many processors, is just a trap to an error handler. However, some processors that trap for most illegal opcodes do not...

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MOS Technology 6507

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in the final metallisation layer. This ties the interrupt lines to their inactive level so they are not vulnerable to generating spurious interrupts from...

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Ricoh 5A22

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which is mostly unused in the SNES Circuitry for generating non-maskable interrupts on V-blank Circuitry for generating interrupts on calculated screen...

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WDC 65C265

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monitor, 576 bytes of SRAM, a processor cache under software control, eight 16-bit timers with maskable interrupts, an interrupt-driven parallel bus (PIB)...

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List of programming languages by type

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directly on processors in another family unless the processors in question have additional hardware to support it (for example, DEC VAX processors included...

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WDC 65C134

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"RESTART" interrupt NMIB Non-Maskable Interrupt input SIB Interrupt IRQ1B level interrupt input IRQ2B level interrupt input 2 timer edge interrupts 7 positive...

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OpenVMS

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relies on exploiting a buffer overflow bug in the DCL command processing code, the ability for a user to interrupt a running image (program executable) with...

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Commodore 128

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systems, as the Z80 processor runs at an effective speed of only 2 MHz. This was because the C128's system bus was designed around the 65xx CPUs. These CPUs...

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Hudson Soft HuC6280

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as an interrupt controller, a memory management unit, a timer, an 8-bit parallel I/O port, and a programmable sound generator (PSG). The processor operates...

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Atari Lynx

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maths and graphics co-processors (including a sprite engine unit), its color graphics display was said to be the key defining feature in the system's competition...

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Dimension 68000

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computer that had three processors: a 6502, a Z80, and a Motorola 6800 Omni Convertible by Omnidata, another triple processor computer system Satchell...

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Mitsubishi 740

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the M50959 was manufactured in Russia with the designation KF1869VE1 (Russian: КФ1869ВЕ1). Interrupts in 6502 processors List of 6502 assemblers List...

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