URL
https://opencores.org/ocsvn/a-z80/a-z80/trunk
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gdevic |
The "original" ZX Spectrum ROM
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==============================
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http://www.wearmouth.demon.co.uk/zx82.htm
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11 |
gdevic |
* "fixed" the NMI bug so the KEY1 which is connected to the NMI pin can be used.
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* Added a custom NMI handler that provides a way to enter a POKE for a game by typing
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in the address (5 decimal digits) followed by the value (3 decimal digits)
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after which the value will be stored to the selected location.
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8 |
gdevic |
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The GOSH WONDERFUL ROM
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======================
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http://www.wearmouth.demon.co.uk/gw03/gw03info.htm
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Flash the "combined.bin" into the flash of your DE1 board at the address 0.
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SW0 selects which ROM image (which 16K block) is used.
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See the User's Guide for more information on this design.
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11 |
gdevic |
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CREATE ROM IMAGES
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=================
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Run assemble.bat to create ZX Spectrum ROM (rom.bin)
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Run this command to append the two images:
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copy /b rom.bin + gw03.rom combined.rom
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