ZX81 - 3.5.0-rc1

[maziac]

This is the release candidate for 3.5.0.
The main new feature is support for the ZX81 in the internal zsim simulator.

Main ZX81 features are:

• standard and hires graphic modes (wrx, arx, chr$64/128)
• Chroma 81 support

Please have a look at the

• Migration doc
• zx81 doc
• and the Usage doc

Please report any issues/errors.

Here is the changelog:

• zsim:
  • Simulation of ZX81. (Supports hires graphics modes, WRX, ARX)
  • Removed "vsyncInterrupt". A VSYNC interrupt is now generated if the Spectrum ULA is enabled.
  • "ulaScreen":
    • Type changed from boolean to 'spectrum' | 'zx81'.
  • Z80 CPU simulation fix: HALT instruction: r is now incremented on each instruction.
  • New debug command, "-ml address filepath", to load binary data into the memory.
  • Fixed setting of A' from the UI.
  • The "zxKeyboard"
    • now supports reading several rows at the same time.
    • type changed to string. "zx81" and "spectrum" style keyboard supported.
    • keyboard visualization improved.
  • The "kempstonJoy" now decodes only the lower 8 bits of the address.
  • A new "customJoy" type: You can assign the bits and ports yourself.
  • Added "preset" to easily configure a spectrum or zx81 device.
  • "cpuLoadInterruptRange": renamed to "cpuLoad". The CPU load is not anymore calculated when the VSYNC occurs. Now it is calculated from HALT to next HALT instruction.
  • "cpuLoad": The simulation speed is indicated by a color. If too slow the cpuLoad is shown in yellow.
  • Loading a .p file sets 'topOfStack' automatically. A warning is send if 'topOfStack' is set manually.
  • "zx81UlaOptions" added.
  • "chroma81" support (including colourization file support).
  • Fixed bug that IX could grow bigger than 0xFFFF.
• "topOfStack": default is now taken from the memory model.
• Loading .nex file: Fix for bit in load screens for ignoring the palette

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This discussion was created from the release ZX81 - 3.5.0-rc1.