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In 65816 mode, REP and SEP modify the bits that determine the width of the A and X registers, which also affects immediate address modes. The xa currently has to be told about this with pseudo opcodes…
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I propose splitting the Z80 and Z180 tables into two separate pages.
My main reason for this is that adding the Z180 instructions in the recent(ish) update took over the space that was previously o…
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ops.ts exports the list of opcodes as:
```ts
const OPS: { [key: string]: number }
```
That's not a very safe type, as it permits access with any string key. It also doesn't work with code completi…
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Refs:
https://en.wikipedia.org/wiki/CHIP-8#Opcode_table
http://chip8.sourceforge.net/chip8-1.1.pdf
http://www.multigesture.net/articles/how-to-write-an-emulator-chip-8-interpreter
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The CPU currently lacks support for undocumented opcodes. This keeps some games (especially) homebrew from running.
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We currently have several "simple" and very useful opcodes such as word, sufword, midword, etc.
It would be great to know exactly what they are looking for before and after the characters, in order t…
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`Unknown opcode: b010`. Any assistance in resolving this issue or guidance on how to add support for new opcodes would be greatly appreciated. Thank you!
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In the function balance
```
def balance(evm):
address = cpu.stack.pop()
evm.stack.push(99999999999)
evm.pc += 1
evm.gas_dec(2600) # 100 if warm
```
The address should …
itfat updated
1 month ago
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Hi,
Is it complex to send opcodes to RCX with an Arduino using IR?
http://www.mralligator.com/rcx/opcodes.html
Cheers
Juan Antonio
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