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