mirror of
https://github.com/TomHarte/CLK.git
synced 2024-12-11 15:49:38 +00:00
29 lines
1.3 KiB
Plaintext
29 lines
1.3 KiB
Plaintext
Welcome to the Zilog Z80 CPU test suite.
|
|
|
|
This set of programs is intended to help the emulator authors to reach the
|
|
desired level of the CPU emulation authenticity. Each of the included programs
|
|
performs an exhaustive computation using each of the tested Z80 instructions,
|
|
compares the results with values obtained from a real 48K Spectrum with Zilog Z80 CPU,
|
|
and reports any deviations detected.
|
|
|
|
The following variants are available:
|
|
|
|
- z80full - tests all flags and registers.
|
|
- z80doc - tests all registers, but only officially documented flags.
|
|
- z80flags - tests all flags, ignores registers.
|
|
- z80docflags - tests documented flags only, ignores registers.
|
|
- z80ccf - tests all flags after executing CCF after each instruction tested.
|
|
- z80memptr - tests all flags after executing BIT N,(HL) after each instruction tested.
|
|
|
|
The first four are the standard tests for CPU emulation. The CCF variant is
|
|
used to thoroughly test the authentic SCF/CCF behavior after each Z80
|
|
instruction. Finally the MEMPTR variant can be used to discover problems in
|
|
the MEMPTR emulation - however note that the current set of test was not
|
|
specifically designed to stress test MEMPTR, so many of the possible
|
|
problems are very likely left undetected. I may eventually add specific
|
|
MEMPTR tests in later releases.
|
|
|
|
Enjoy!
|
|
|
|
Patrik Rak
|