mirror of
https://github.com/MoleskiCoder/EightBit.git
synced 2024-11-03 21:05:56 +00:00
80 lines
2.4 KiB
Plaintext
80 lines
2.4 KiB
Plaintext
File formats
|
|
============
|
|
|
|
tests.in
|
|
--------
|
|
|
|
Each test has the format:
|
|
|
|
<arbitrary test description>
|
|
AF BC DE HL AF' BC' DE' HL' IX IY SP PC MEMPTR
|
|
I R IFF1 IFF2 IM <halted> <tstates>
|
|
|
|
<halted> specifies whether the Z80 is halted.
|
|
<tstates> specifies the number of tstates to run the test for, in
|
|
decimal; the number actually executed may be higher, as the final
|
|
instruction is allowed to complete.
|
|
|
|
Then followed by lines specifying the initial memory setup. Each has
|
|
the format:
|
|
|
|
<start address> <byte1> <byte2> ... -1
|
|
|
|
eg
|
|
|
|
1234 56 78 9a -1
|
|
|
|
says to put 0x56 at 0x1234, 0x78 at 0x1235 and 0x9a at 0x1236.
|
|
|
|
Finally, -1 to end the test. Blank lines may follow before the next test.
|
|
|
|
tests.expected
|
|
--------------
|
|
|
|
Each test output starts with the test description, followed by a list
|
|
of 'events': each has the format
|
|
|
|
<time> <type> <address> <data>
|
|
|
|
<time> is simply the time at which the event occurs.
|
|
<type> is one of MR (memory read), MW (memory write), MC (memory
|
|
contend), PR (port read), PW (port write) or PC (port contend).
|
|
<address> is the address (or IO port) affected.
|
|
<data> is the byte written or read. Missing for contentions.
|
|
|
|
After that, lines specifying AF, BC etc as for .in files. <tstates>
|
|
now specifies the final time.
|
|
|
|
After that, lines specifying which bits of memory have changed since
|
|
the initial setup. Same format as for .in files.
|
|
|
|
Why some specific tests are here
|
|
================================
|
|
|
|
{02,0a,32}_1,edb[012389ab]_[12],d3_4:
|
|
check MEMPTR is set correctly after various instructions.
|
|
|
|
37_{1,2,3}: check the behaviour of SCF with respect to bits 3 and 5
|
|
(bug fixed on 20040225).
|
|
|
|
cb46_{1,2,3,4,5}: check the correct bits of MEMPTR are copied to bits 3
|
|
and 5 of the flags register after a BIT n,(HL) instruction.
|
|
|
|
cb{4,5,6,7}{7,f}_1: designed to check that bits 3 and 5 are copied to
|
|
F only for BIT 3,<arg> and BIT 5,<arg> respectively
|
|
(bug fixed on 20040225).
|
|
|
|
However, later research has revealed the bits 3
|
|
and 5 are copied on all BIT instructions, so these
|
|
tests are now essentially redundant.
|
|
|
|
d{3,b}_{1,2,3}: check for correct port contention on IO in the four
|
|
relevant states (port high byte in 0x40 to 0x7f or not,
|
|
port low bit set or reset).
|
|
|
|
dd00.in, ddfd00.in: test timings of "extended NOP" opcodes DD 00 and
|
|
DD FD 00; the extra 00 at the end is to check the
|
|
next opcode executes at the right time (bug fixed
|
|
on 20060722).
|
|
|