#include <mos6510.h>
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static const char * | credits () |
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static const int | SR_INTERRUPT = 2 |
| Status register interrupt bit.
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Cycle-exact 6502/6510 emulation core.
Code is based on work by Simon A. White sidpl.nosp@m.ay2@.nosp@m.yahoo.nosp@m..com. Original Java port by Ken Händel. Later on, it has been hacked to improve compatibility with Lorenz suite on VICE's test suite.
- Author
- alankila
Create new CPU emu
- Parameters
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void MOS6510::clearIRQ |
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Inform CPU that IRQ is no longer pulled low.
virtual uint8_t MOS6510::cpuRead |
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uint_least16_t |
addr | ) |
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pure virtual |
Get data from system environment.
- Parameters
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- Returns
- data byte CPU requested
Implemented in c64cpu.
virtual void MOS6510::cpuWrite |
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uint_least16_t |
addr, |
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uint8_t |
data |
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pure virtual |
Write data to system environment.
- Parameters
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Implemented in c64cpu.
void MOS6510::setRDY |
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bool |
newRDY | ) |
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Handle bus access signals. When RDY line is asserted, the CPU will pause when executing the next read operation.
- Parameters
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rdy | new state for RDY signal |
void MOS6510::triggerIRQ |
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Pull IRQ line low on CPU.
void MOS6510::triggerNMI |
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Trigger NMI interrupt on the CPU. Calling this method flags that CPU must enter the NMI routine at earliest opportunity. There is no way to cancel NMI request once given.
void MOS6510::triggerRST |
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This forces the CPU to abort whatever it is doing and immediately enter the RST interrupt handling sequence. The implementation is not compatible: instructions actually get aborted mid-execution. However, there is no possible way to trigger this signal from programs, so it's OK.
The documentation for this class was generated from the following files: