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CLK/OSBindings/Mac/Clock SignalTests/Zexall/zexall.src

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Imported the Zexall.com tester, as a first thing to throw at the Z80 to be.
2017-05-17 01:37:09 +00:00
title 'Z80 instruction set exerciser'
; zexall.src - Z80 instruction set exerciser
; Original Copyright (C) 1994 Frank D. Cringle
; Changes at 03-Nov-2002 Copyright (C) 2002 J.G.Harston
; + Source syntax tweeked to assemble with ZMAC Z80 Macro Assembler
; and MAXAM Assembler, marked in the source with 'jgh:'
; + labels on equates mustn't have trailing colon
; + macros don't understand <...> sequence, so parameters are passed
; explicitly
; + ds n,c not supported, so strings are set to full explicity length
;
; This program is free software; you can redistribute it and/or
; modify it under the terms of the GNU General Public License
; as published by the Free Software Foundation; either version 2
; of the License, or (at your option) any later version.
;
; This program is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; GNU General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with this program; if not, write to the Free Software
; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
aseg
org 100h
jp start
; machine state before test (needs to be at predictably constant address)
msbt: ds 14
spbt: ds 2
msbthi equ msbt / 0100h
msbtlo equ msbt & 0ffh
; For the purposes of this test program, the machine state consists of:
; a 2 byte memory operand, followed by
; the registers iy,ix,hl,de,bc,af,sp
; for a total of 16 bytes.
; The program tests instructions (or groups of similar instructions)
; by cycling through a sequence of machine states, executing the test
; instruction for each one and running a 32-bit crc over the resulting
; machine states. At the end of the sequence the crc is compared to
; an expected value that was found empirically on a real Z80.
; A test case is defined by a descriptor which consists of:
; a flag mask byte,
; the base case,
; the incement vector,
; the shift vector,
; the expected crc,
; a short descriptive message.
;
; The flag mask byte is used to prevent undefined flag bits from
; influencing the results. Documented flags are as per Mostek Z80
; Technical Manual.
;
; The next three parts of the descriptor are 20 byte vectors
; corresponding to a 4 byte instruction and a 16 byte machine state.
; The first part is the base case, which is the first test case of
; the sequence. This base is then modified according to the next 2
; vectors. Each 1 bit in the increment vector specifies a bit to be
; cycled in the form of a binary counter. For instance, if the byte
; corresponding to the accumulator is set to 0ffh in the increment
; vector, the test will be repeated for all 256 values of the
; accumulator. Note that 1 bits don't have to be contiguous. The
; number of test cases 'caused' by the increment vector is equal to
; 2^(number of 1 bits). The shift vector is similar, but specifies a
; set of bits in the test case that are to be successively inverted.
; Thus the shift vector 'causes' a number of test cases equal to the
; number of 1 bits in it.
; The total number of test cases is the product of those caused by the
; counter and shift vectors and can easily become unweildy. Each
; individual test case can take a few milliseconds to execute, due to
; the overhead of test setup and crc calculation, so test design is a
; compromise between coverage and execution time.
; This program is designed to detect differences between
; implementations and is not ideal for diagnosing the causes of any
; discrepancies. However, provided a reference implementation (or
; real system) is available, a failing test case can be isolated by
; hand using a binary search of the test space.
start: ld hl,(6)
ld sp,hl
ld de,msg1
ld c,9
call bdos
ld hl,tests ; first test case
loop: ld a,(hl) ; end of list ?
inc hl
or (hl)
jp z,done
dec hl
call stt
jp loop
done: ld de,msg2
ld c,9
call bdos
jp 0 ; warm boot
tests:
dw adc16
dw add16
dw add16x
dw add16y
dw alu8i
dw alu8r
dw alu8rx
dw alu8x
dw bitx
dw bitz80
dw cpd1
dw cpi1
dw daaop ; can't use opcode as label
dw inca
dw incb
dw incbc
dw incc
dw incd
dw incde
dw ince
dw inch
dw inchl
dw incix
dw inciy
dw incl
dw incm
dw incsp
dw incx
dw incxh
dw incxl
dw incyh
dw incyl
dw ld161
dw ld162
dw ld163
dw ld164
dw ld165
dw ld166
dw ld167
dw ld168
dw ld16im
dw ld16ix
dw ld8bd
dw ld8im
dw ld8imx
dw ld8ix1
dw ld8ix2
dw ld8ix3
dw ld8ixy
dw ld8rr
dw ld8rrx
dw lda
dw ldd1
dw ldd2
dw ldi1
dw ldi2
dw negop ; jgh: can't use opcode as label
dw rldop ; jgh: can't use opcode as label
dw rot8080
dw rotxy
dw rotz80
dw srz80
dw srzx
dw st8ix1
dw st8ix2
dw st8ix3
dw stabd
dw 0
; jgh: macro syntax changed for ZMAC and MAXAM
; can't use opcodes as labels
; ZMAC allows &nn as hex, so & removed from local labels
;
tstr macro insn1,insn2,insn3,insn4,memop,riy,rix,rhl,rde,rbc,flags,acc,rsp,?lab
?lab: db insn1,insn2,insn3,insn4
dw memop,riy,rix,rhl,rde,rbc
db flags
db acc
dw rsp
if $-?lab ne 20
error 'missing parameter'
endif
endm
tmsg macro msg,?lab
?lab: db 'msg'
if $ ge ?lab+31
error 'message too long'
else
; ds ?lab+30-$,'.' ; jgh: ZMAC/MAXAM don't have char parameter
endif
db '$'
endm
; jgh: ZMAC/MAXAM don't recognise <n,m> syntax for macros, so full parameters given
; jgh: each tmsg has full string, as ZMAC/MAXAM don't have ds n,c pseudo-op
; <adc,sbc> hl,<bc,de,hl,sp> (38,912 cycles)
adc16: db 0ffh ; flag mask
tstr 0edh,042h,0,0,0832ch,04f88h,0f22bh,0b339h,07e1fh,01563h,0d3h,089h,0465eh
tstr 0,038h,0,0,0,0,0,0f821h,0,0,0,0,0 ; (1024 cycles)
tstr 0,0,0,0,0,0,0,-1,-1,-1,0d7h,0,-1 ; (38 cycles)
db 0d4h,08ah,0d5h,019h ; expected crc
tmsg '<adc,sbc> hl,<bc,de,hl,sp>....'
; add hl,<bc,de,hl,sp> (19,456 cycles)
add16: db 0ffh ; flag mask
tstr 9,0,0,0,0c4a5h,0c4c7h,0d226h,0a050h,058eah,08566h,0c6h,0deh,09bc9h
tstr 030h,0,0,0,0,0,0,0f821h,0,0,0,0,0 ; (512 cycles)
tstr 0,0,0,0,0,0,0,-1,-1,-1,0d7h,0,-1 ; (38 cycles)
db 0d9h,0a4h,0cah,005h ; expected crc
tmsg 'add hl,<bc,de,hl,sp>..........'
; add ix,<bc,de,ix,sp> (19,456 cycles)
add16x: db 0ffh ; flag mask
tstr 0ddh,9,0,0,0ddach,0c294h,0635bh,033d3h,06a76h,0fa20h,094h,068h,036f5h
tstr 0,030h,0,0,0,0,0f821h,0,0,0,0,0,0 ; (512 cycles)
tstr 0,0,0,0,0,0,-1,0,-1,-1,0d7h,0,-1 ; (38 cycles)
db 0b1h,0dfh,08eh,0c0h ; expected crc
tmsg 'add ix,<bc,de,ix,sp>..........'
; add iy,<bc,de,iy,sp> (19,456 cycles)
add16y: db 0ffh ; flag mask
tstr 0fdh,9,0,0,0c7c2h,0f407h,051c1h,03e96h,00bf4h,0510fh,092h,01eh,071eah
tstr 0,030h,0,0,0,0f821h,0,0,0,0,0,0,0 ; (512 cycles)
tstr 0,0,0,0,0,-1,0,0,-1,-1,0d7h,0,-1 ; (38 cycles)
db 039h,0c8h,058h,09bh ; expected crc
tmsg 'add iy,<bc,de,iy,sp>..........'
; aluop a,nn (28,672 cycles)
alu8i: db 0ffh ; flag mask
tstr 0c6h,0,0,0,009140h,07e3ch,07a67h,0df6dh,05b61h,00b29h,010h,066h,085b2h
tstr 038h,0,0,0,0,0,0,0,0,0,0,-1,0 ; (2048 cycles)
tstr 0,-1,0,0,0,0,0,0,0,0,0d7h,0,0 ; (14 cycles)
db 051h,0c1h,09ch,02eh ; expected crc
tmsg 'aluop a,nn....................'
; aluop a,<b,c,d,e,h,l,(hl),a> (753,664 cycles)
alu8r: db 0ffh ; flag mask
tstr 080h,0,0,0,0c53eh,0573ah,04c4dh,msbt,0e309h,0a666h,0d0h,03bh,0adbbh
tstr 03fh,0,0,0,0,0,0,0,0,0,0,-1,0 ; (16,384 cycles)
tstr 0,0,0,0,0ffh,0,0,0,-1,-1,0d7h,0,0 ; (46 cycles)
db 006h,0c7h,0aah,08eh ; expected crc
tmsg 'aluop a,<b,c,d,e,h,l,(hl),a>..'
; aluop a,<ixh,ixl,iyh,iyl> (376,832 cycles)
alu8rx: db 0ffh ; flag mask
tstr 0ddh,084h,0,0,0d6f7h,0c76eh,0accfh,02847h,022ddh,0c035h,0c5h,038h,0234bh
tstr 020h,039h,0,0,0,0,0,0,0,0,0,-1,0 ; (8,192 cycles)
tstr 0,0,0,0,0ffh,0,0,0,-1,-1,0d7h,0,0 ; (46 cycles)
db 0a8h,086h,0cch,044h ; expected crc
tmsg 'aluop a,<ixh,ixl,iyh,iyl>.....'
; aluop a,(<ix,iy>+1) (229,376 cycles)
alu8x: db 0ffh ; flag mask
tstr 0ddh,086h,1,0,090b7h,msbt-1,msbt-1,032fdh,0406eh,0c1dch,045h,06eh,0e5fah
tstr 020h,038h,0,0,0,1,1,0,0,0,0,-1,0 ; (16,384 cycles)
tstr 0,0,0,0,0ffh,0,0,0,0,0,0d7h,0,0 ; (14 cycles)
db 0d3h,0f2h,0d7h,04ah ; expected crc
tmsg 'aluop a,(<ix,iy>+1)...........'
; bit n,(<ix,iy>+1) (2048 cycles)
bitx: db 0ffh ; flag mask
tstr 0ddh,0cbh,1,046h,02075h,msbt-1,msbt-1,03cfch,0a79ah,03d74h,051h,027h,0ca14h
tstr 020h,0,0,038h,0,0,0,0,0,0,053h,0,0 ; (256 cycles)
tstr 0,0,0,0,0ffh,0,0,0,0,0,0,0,0 ; (8 cycles)
db 083h,053h,04eh,0e1h ; expected crc
tmsg 'bit n,(<ix,iy>+1).............'
; bit n,<b,c,d,e,h,l,(hl),a> (49,152 cycles)
bitz80: db 0ffh ; flag mask
tstr 0cbh,040h,0,0,03ef1h,09dfch,07acch,msbt,0be61h,07a86h,050h,024h,01998h
tstr 0,03fh,0,0,0,0,0,0,0,0,053h,0,0 ; (1024 cycles)
tstr 0,0,0,0,0ffh,0,0,0,-1,-1,0,-1,0 ; (48 cycles)
db 05eh,002h,00eh,098h ; expected crc
tmsg 'bit n,<b,c,d,e,h,l,(hl),a>....'
; cpd<r> (1) (6144 cycles)
cpd1: db 0ffh ; flag mask
tstr 0edh,0a9h,0,0,0c7b6h,072b4h,018f6h,msbt+17,08dbdh,1,0c0h,030h,094a3h
tstr 0,010h,0,0,0,0,0,0,0,010,0,-1,0 ; (1024 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 013h,04bh,062h,02dh ; expected crc
tmsg 'cpd<r>........................'
; cpi<r> (1) (6144 cycles)
cpi1: db 0ffh ; flag mask
tstr 0edh,0a1h,0,0,04d48h,0af4ah,0906bh,msbt,04e71h,1,093h,06ah,0907ch
tstr 0,010h,0,0,0,0,0,0,0,010,0,-1,0 ; (1024 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 02dh,0a4h,02dh,019h ; expected crc
tmsg 'cpi<r>........................'
; <daa,cpl,scf,ccf>
daaop: db 0ffh ; flag mask
tstr 027h,0,0,0,02141h,009fah,01d60h,0a559h,08d5bh,09079h,004h,08eh,0299dh
tstr 018h,0,0,0,0,0,0,0,0,0,0d7h,-1,0 ; (65,536 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0,0,0 ; (1 cycle)
db 06dh,02dh,0d2h,013h ; expected crc
tmsg '<daa,cpl,scf,ccf>.............'
; <inc,dec> a (3072 cycles)
inca: db 0ffh ; flag mask
tstr 03ch,0,0,0,04adfh,0d5d8h,0e598h,08a2bh,0a7b0h,0431bh,044h,05ah,0d030h
tstr 001h,0,0,0,0,0,0,0,0,0,0,-1,0 ; (512 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 081h,0fah,081h,000h ; expected crc
tmsg '<inc,dec> a...................'
; <inc,dec> b (3072 cycles)
incb: db 0ffh ; flag mask
tstr 004h,0,0,0,0d623h,0432dh,07a61h,08180h,05a86h,01e85h,086h,058h,09bbbh
tstr 001h,0,0,0,0,0,0,0,0,0ff00h,0,0,0 ; (512 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 077h,0f3h,05ah,073h ; expected crc
tmsg '<inc,dec> b...................'
; <inc,dec> bc (1536 cycles)
incbc: db 0ffh ; flag mask
tstr 003h,0,0,0,0cd97h,044abh,08dc9h,0e3e3h,011cch,0e8a4h,002h,049h,02a4dh
tstr 008h,0,0,0,0,0,0,0,0,0f821h,0,0,0 ; (256 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 0d2h,0aeh,03bh,0ech ; expected crc
tmsg '<inc,dec> bc..................'
; <inc,dec> c (3072 cycles)
incc: db 0ffh ; flag mask
tstr 00ch,0,0,0,0d789h,00935h,0055bh,09f85h,08b27h,0d208h,095h,005h,00660h
tstr 001h,0,0,0,0,0,0,0,0,0ffh,0,0,0 ; (512 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 01ah,0f6h,012h,0a7h ; expected crc
tmsg '<inc,dec> c...................'
; <inc,dec> d (3072 cycles)
incd: db 0ffh ; flag mask
tstr 014h,0,0,0,0a0eah,05fbah,065fbh,0981ch,038cch,0debch,043h,05ch,003bdh
tstr 001h,0,0,0,0,0,0,0,0ff00h,0,0,0,0 ; (512 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 0d1h,046h,0bfh,051h ; expected crc
tmsg '<inc,dec> d...................'
; <inc,dec> de (1536 cycles)
incde: db 0ffh ; flag mask
tstr 013h,0,0,0,0342eh,0131dh,028c9h,00acah,09967h,03a2eh,092h,0f6h,09d54h
tstr 008h,0,0,0,0,0,0,0,0f821h,0,0,0,0 ; (256 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 0aeh,0c6h,0d4h,02ch ; expected crc
tmsg '<inc,dec> de..................'
; <inc,dec> e (3072 cycles)
ince: db 0ffh ; flag mask
tstr 01ch,0,0,0,0602fh,04c0dh,02402h,0e2f5h,0a0f4h,0a10ah,013h,032h,05925h
tstr 001h,0,0,0,0,0,0,0,0ffh,0,0,0,0 ; (512 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 0cah,08ch,06ah,0c2h ; expected crc
tmsg '<inc,dec> e...................'
; <inc,dec> h (3072 cycles)
inch: db 0ffh ; flag mask
tstr 024h,0,0,0,01506h,0f2ebh,0e8ddh,0262bh,011a6h,0bc1ah,017h,006h,02818h
tstr 001h,0,0,0,0,0,0,0ff00h,0,0,0,0,0 ; (512 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 056h,00fh,095h,05eh ; expected crc
tmsg '<inc,dec> h...................'
; <inc,dec> hl (1536 cycles)
inchl: db 0ffh ; flag mask
tstr 023h,0,0,0,0c3f4h,007a5h,01b6dh,04f04h,0e2c2h,0822ah,057h,0e0h,0c3e1h
tstr 008h,0,0,0,0,0,0,0f821h,0,0,0,0,0 ; (256 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 0fch,00dh,06dh,04ah ; expected crc
tmsg '<inc,dec> hl..................'
; <inc,dec> ix (1536 cycles)
incix: db 0ffh ; flag mask
tstr 0ddh,023h,0,0,0bc3ch,00d9bh,0e081h,0adfdh,09a7fh,096e5h,013h,085h,00be2h
tstr 0,8,0,0,0,0,0f821h,0,0,0,0,0,0 ; (256 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 0a5h,04dh,0beh,031h ; expected crc
tmsg '<inc,dec> ix..................'
; <inc,dec> iy (1536 cycles)
inciy: db 0ffh ; flag mask
tstr 0fdh,023h,0,0,09402h,0637ah,03182h,0c65ah,0b2e9h,0abb4h,016h,0f2h,06d05h
tstr 0,8,0,0,0,0f821h,0,0,0,0,0,0,0 ; (256 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 050h,05dh,051h,0a3h ; expected crc
tmsg '<inc,dec> iy..................'
; <inc,dec> l (3072 cycles)
incl: db 0ffh ; flag mask
tstr 02ch,0,0,0,08031h,0a520h,04356h,0b409h,0f4c1h,0dfa2h,0d1h,03ch,03ea2h
tstr 001h,0,0,0,0,0,0,0ffh,0,0,0,0,0 ; (512 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 0a0h,0a1h,0b4h,09fh ; expected crc
tmsg '<inc,dec> l...................'
; <inc,dec> (hl) (3072 cycles)
incm: db 0ffh ; flag mask
tstr 034h,0,0,0,0b856h,00c7ch,0e53eh,msbt,0877eh,0da58h,015h,05ch,01f37h
tstr 001h,0,0,0,0ffh,0,0,0,0,0,0,0,0 ; (512 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 028h,029h,05eh,0ceh ; expected crc
tmsg '<inc,dec> (hl)................'
; <inc,dec> sp (1536 cycles)
incsp: db 0ffh ; flag mask
tstr 033h,0,0,0,0346fh,0d482h,0d169h,0deb6h,0a494h,0f476h,053h,002h,0855bh
tstr 008h,0,0,0,0,0,0,0,0,0,0,0,0f821h ; (256 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 05dh,0ach,0d5h,027h ; expected crc
tmsg '<inc,dec> sp..................'
; <inc,dec> (<ix,iy>+1) (6144 cycles)
incx: db 0ffh ; flag mask
tstr 0ddh,034h,1,0,0fa6eh,msbt-1,msbt-1,02c28h,08894h,05057h,016h,033h,0286fh
tstr 020h,1,0,0,0ffh,0,0,0,0,0,0,0,0 ; (1024 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 00bh,095h,0a8h,0eah ; expected crc
tmsg '<inc,dec> (<ix,iy>+1).........'
; <inc,dec> ixh (3072 cycles)
incxh: db 0ffh ; flag mask
tstr 0ddh,024h,0,0,0b838h,0316ch,0c6d4h,03e01h,08358h,015b4h,081h,0deh,04259h
tstr 0,1,0,0,0,0ff00h,0,0,0,0,0,0,0 ; (512 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 06fh,046h,036h,062h ; expected crc
tmsg '<inc,dec> ixh.................'
; <inc,dec> ixl (3072 cycles)
incxl: db 0ffh ; flag mask
tstr 0ddh,02ch,0,0,04d14h,07460h,076d4h,006e7h,032a2h,0213ch,0d6h,0d7h,099a5h
tstr 0,1,0,0,0,0ffh,0,0,0,0,0,0,0 ; (512 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 002h,07bh,0efh,02ch ; expected crc
tmsg '<inc,dec> ixl.................'
; <inc,dec> iyh (3072 cycles)
incyh: db 0ffh ; flag mask
tstr 0ddh,024h,0,0,02836h,09f6fh,09116h,061b9h,082cbh,0e219h,092h,073h,0a98ch
tstr 0,1,0,0,0ff00h,0,0,0,0,0,0,0,0 ; (512 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 02dh,096h,06ch,0f3h ; expected crc
tmsg '<inc,dec> iyh.................'
; <inc,dec> iyl (3072 cycles)
incyl: db 0ffh ; flag mask
tstr 0ddh,02ch,0,0,0d7c6h,062d5h,0a09eh,07039h,03e7eh,09f12h,090h,0d9h,0220fh
tstr 0,1,0,0,0ffh,0,0,0,0,0,0,0,0 ; (512 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 036h,0c1h,01eh,075h ; expected crc
tmsg '<inc,dec> iyl.................'
; ld <bc,de>,(nnnn) (32 cycles)
ld161: db 0ffh ; flag mask
tstr 0edh,04bh,msbtlo,msbthi,0f9a8h,0f559h,093a4h,0f5edh,06f96h,0d968h,086h,0e6h,04bd8h
tstr 0,010h,0,0,0,0,0,0,0,0,0,0,0 ; (2 cycles)
tstr 0,0,0,0,-1,0,0,0,0,0,0,0,0 ; (16 cycles)
db 04dh,045h,0a9h,0ach ; expected crc
tmsg 'ld <bc,de>,(nnnn).............'
; ld hl,(nnnn) (16 cycles)
ld162: db 0ffh ; flag mask
tstr 02ah,msbtlo,msbthi,0,09863h,07830h,02077h,0b1feh,0b9fah,0abb8h,004h,006h,06015h
tstr 0,0,0,0,0,0,0,0,0,0,0,0,0 ; (1 cycle)
tstr 0,0,0,0,-1,0,0,0,0,0,0,0,0 ; (16 cycles)
db 05fh,097h,024h,087h ; expected crc
tmsg 'ld hl,(nnnn)..................'
; ld sp,(nnnn) (16 cycles)
ld163: db 0ffh ; flag mask
tstr 0edh,07bh,msbtlo,msbthi,08dfch,057d7h,02161h,0ca18h,0c185h,027dah,083h,01eh,0f460h
tstr 0,0,0,0,0,0,0,0,0,0,0,0,0 ; (1 cycles)
tstr 0,0,0,0,-1,0,0,0,0,0,0,0,0 ; (16 cycles)
db 07ah,0ceh,0a1h,01bh ; expected crc
tmsg 'ld sp,(nnnn)..................'
; ld <ix,iy>,(nnnn) (32 cycles)
ld164: db 0ffh ; flag mask
tstr 0ddh,02ah,msbtlo,msbthi,0ded7h,0a6fah,0f780h,0244ch,087deh,0bcc2h,016h,063h,04c96h
tstr 020h,0,0,0,0,0,0,0,0,0,0,0,0 ; (2 cycles)
tstr 0,0,0,0,-1,0,0,0,0,0,0,0,0 ; (16 cycles)
db 085h,08bh,0f1h,06dh ; expected crc
tmsg 'ld <ix,iy>,(nnnn).............'
; ld (nnnn),<bc,de> (64 cycles)
ld165: db 0ffh ; flag mask
tstr 0edh,043h,msbtlo,msbthi,01f98h,0844dh,0e8ach,0c9edh,0c95dh,08f61h,080h,03fh,0c7bfh
tstr 0,010h,0,0,0,0,0,0,0,0,0,0,0 ; (2 cycles)
tstr 0,0,0,0,0,0,0,0,-1,-1,0,0,0 ; (32 cycles)
db 064h,01eh,087h,015h ; expected crc
tmsg 'ld (nnnn),<bc,de>.............'
; ld (nnnn),hl (16 cycles)
ld166: db 0ffh ; flag mask
tstr 022h,msbtlo,msbthi,0,0d003h,07772h,07f53h,03f72h,064eah,0e180h,010h,02dh,035e9h
tstr 0,0,0,0,0,0,0,0,0,0,0,0,0 ; (1 cycle)
tstr 0,0,0,0,0,0,0,-1,0,0,0,0,0 ; (16 cycles)
db 0a3h,060h,08bh,047h ; expected crc
tmsg 'ld (nnnn),hl..................'
; ld (nnnn),sp (16 cycles)
ld167: db 0ffh ; flag mask
tstr 0edh,073h,msbtlo,msbthi,0c0dch,0d1d6h,0ed5ah,0f356h,0afdah,06ca7h,044h,09fh,03f0ah
tstr 0,0,0,0,0,0,0,0,0,0,0,0,0 ; (1 cycle)
tstr 0,0,0,0,0,0,0,0,0,0,0,0,-1 ; (16 cycles)
db 016h,058h,05fh,0d7h ; expected crc
tmsg 'ld (nnnn),sp..................'
; ld (nnnn),<ix,iy> (64 cycles)
ld168: db 0ffh ; flag mask
tstr 0ddh,022h,msbtlo,msbthi,06cc3h,00d91h,06900h,08ef8h,0e3d6h,0c3f7h,0c6h,0d9h,0c2dfh
tstr 020h,0,0,0,0,0,0,0,0,0,0,0,0 ; (2 cycles)
tstr 0,0,0,0,0,-1,-1,0,0,0,0,0,0 ; (32 cycles)
db 0bah,010h,02ah,06bh ; expected crc
tmsg 'ld (nnnn),<ix,iy>.............'
; ld <bc,de,hl,sp>,nnnn (64 cycles)
ld16im: db 0ffh ; flag mask
tstr 1,0,0,0,05c1ch,02d46h,08eb9h,06078h,074b1h,0b30eh,046h,0d1h,030cch
tstr 030h,0,0,0,0,0,0,0,0,0,0,0,0 ; (4 cycles)
tstr 0,0ffh,0ffh,0,0,0,0,0,0,0,0,0,0 ; (16 cycles)
db 0deh,039h,019h,069h ; expected crc
tmsg 'ld <bc,de,hl,sp>,nnnn.........'
; ld <ix,iy>,nnnn (32 cycles)
ld16ix: db 0ffh ; flag mask
tstr 0ddh,021h,0,0,087e8h,02006h,0bd12h,0b69bh,07253h,0a1e5h,051h,013h,0f1bdh
tstr 020h,0,0,0,0,0,0,0,0,0,0,0,0 ; (2 cycles)
tstr 0,0,0ffh,0ffh,0,0,0,0,0,0,0,0,0 ; (16 cycles)
db 022h,07dh,0d5h,025h ; expected crc
tmsg 'ld <ix,iy>,nnnn...............'
; ld a,<(bc),(de)> (44 cycles)
ld8bd: db 0ffh ; flag mask
tstr 00ah,0,0,0,0b3a8h,01d2ah,07f8eh,042ach,msbt,msbt,0c6h,0b1h,0ef8eh
tstr 010h,0,0,0,0,0,0,0,0,0,0,0,0 ; (2 cycles)
tstr 0,0,0,0,0ffh,0,0,0,0,0,0d7h,-1,0 ; (22 cycles)
db 0b0h,081h,089h,035h ; expected crc
tmsg 'ld a,<(bc),(de)>..............'
; ld <b,c,d,e,h,l,(hl),a>,nn (64 cycles)
ld8im: db 0ffh ; flag mask
tstr 6,0,0,0,0c407h,0f49dh,0d13dh,00339h,0de89h,07455h,053h,0c0h,05509h
tstr 038h,0,0,0,0,0,0,0,0,0,0,0,0 ; (8 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0,-1,0 ; (8 cycles)
db 0f1h,0dah,0b5h,056h ; expected crc
tmsg 'ld <b,c,d,e,h,l,(hl),a>,nn....'
; ld (<ix,iy>+1),nn (32 cycles)
ld8imx: db 0ffh ; flag mask
tstr 0ddh,036h,1,0,01b45h,msbt-1,msbt-1,0d5c1h,061c7h,0bdc4h,0c0h,085h,0cd16h
tstr 020h,0,0,0,0,0,0,0,0,0,0,0,0 ; (2 cycles)
tstr 0,0,0,-1,0,0,0,0,0,0,0,-1,0 ; (16 cycles)
db 026h,0dbh,047h,07eh ; expected crc
tmsg 'ld (<ix,iy>+1),nn.............'
; ld <b,c,d,e>,(<ix,iy>+1) (512 cycles)
ld8ix1: db 0ffh ; flag mask
tstr 0ddh,046h,1,0,0d016h,msbt-1,msbt-1,04260h,07f39h,00404h,097h,04ah,0d085h
tstr 020h,018h,0,0,0,1,1,0,0,0,0,0,0 ; (32 cycles)
tstr 0,0,0,0,-1,0,0,0,0,0,0,0,0 ; (16 cycles)
db 0cch,011h,006h,0a8h ; expected crc
tmsg 'ld <b,c,d,e>,(<ix,iy>+1)......'
; ld <h,l>,(<ix,iy>+1) (256 cycles)
ld8ix2: db 0ffh ; flag mask
tstr 0ddh,066h,1,0,084e0h,msbt-1,msbt-1,09c52h,0a799h,049b6h,093h,000h,0eeadh
tstr 020h,008h,0,0,0,1,1,0,0,0,0,0,0 ; (16 cycles)
tstr 0,0,0,0,-1,0,0,0,0,0,0,0,0 ; (16 cycles)
db 0fah,02ah,04dh,003h ; expected crc
tmsg 'ld <h,l>,(<ix,iy>+1)..........'
; ld a,(<ix,iy>+1) (128 cycles)
ld8ix3: db 0ffh ; flag mask
tstr 0ddh,07eh,1,0,0d8b6h,msbt-1,msbt-1,0c612h,0df07h,09cd0h,043h,0a6h,0a0e5h
tstr 020h,0,0,0,0,1,1,0,0,0,0,0,0 ; (8 cycles)
tstr 0,0,0,0,-1,0,0,0,0,0,0,0,0 ; (16 cycles)
db 0a5h,0e9h,0ach,064h ; expected crc
tmsg 'ld a,(<ix,iy>+1)..............'
; ld <ixh,ixl,iyh,iyl>,nn (32 cycles)
ld8ixy: db 0ffh ; flag mask
tstr 0ddh,026h,0,0,03c53h,04640h,0e179h,07711h,0c107h,01afah,081h,0adh,05d9bh
tstr 020h,8,0,0,0,0,0,0,0,0,0,0,0 ; (4 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0,-1,0 ; (8 cycles)
db 024h,0e8h,082h,08bh ; expected crc
tmsg 'ld <ixh,ixl,iyh,iyl>,nn.......'
; ld <b,c,d,e,h,l,a>,<b,c,d,e,h,l,a> (3456 cycles)
ld8rr: db 0ffh ; flag mask
tstr 040h,0,0,0,072a4h,0a024h,061ach,msbt,082c7h,0718fh,097h,08fh,0ef8eh
tstr 03fh,0,0,0,0,0,0,0,0,0,0,0,0 ; (64 cycles)
tstr 0,0,0,0,0ffh,0,0,0,-1,-1,0d7h,-1,0 ; (54 cycles)
db 074h,04bh,001h,018h ; expected crc
tmsg 'ld <bcdehla>,<bcdehla>........'
; ld <b,c,d,e,ixy,a>,<b,c,d,e,ixy,a> (6912 cycles)
ld8rrx: db 0ffh ; flag mask
tstr 0ddh,040h,0,0,0bcc5h,msbt,msbt,msbt,02fc2h,098c0h,083h,01fh,03bcdh
tstr 020h,03fh,0,0,0,0,0,0,0,0,0,0,0 ; (128 cycles)
tstr 0,0,0,0,0ffh,0,0,0,-1,-1,0d7h,-1,0 ; (54 cycles)
db 047h,08bh,0a3h,06bh ; expected crc
tmsg 'ld <bcdexya>,<bcdexya>........'
; ld a,(nnnn) / ld (nnnn),a (44 cycles)
lda: db 0ffh ; flag mask
tstr 032h,msbtlo,msbthi,0,0fd68h,0f4ech,044a0h,0b543h,00653h,0cdbah,0d2h,04fh,01fd8h
tstr 008h,0,0,0,0,0,0,0,0,0,0,0,0 ; (2 cycle)
tstr 0,0,0,0,0ffh,0,0,0,0,0,0d7h,-1,0 ; (22 cycles)
db 0c9h,026h,02dh,0e5h ; expected crc
tmsg 'ld a,(nnnn) / ld (nnnn),a.....'
; ldd<r> (1) (44 cycles)
ldd1: db 0ffh ; flag mask
tstr 0edh,0a8h,0,0,09852h,068fah,066a1h,msbt+3,msbt+1,1,0c1h,068h,020b7h
tstr 0,010h,0,0,0,0,0,0,0,0,0,0,0 ; (2 cycles)
tstr 0,0,0,0,-1,0,0,0,0,0,0d7h,0,0 ; (22 cycles)
db 094h,0f4h,027h,069h ; expected crc
tmsg 'ldd<r> (1)....................'
; ldd<r> (2) (44 cycles)
ldd2: db 0ffh ; flag mask
tstr 0edh,0a8h,0,0,0f12eh,0eb2ah,0d5bah,msbt+3,msbt+1,2,047h,0ffh,0fbe4h
tstr 0,010h,0,0,0,0,0,0,0,0,0,0,0 ; (2 cycles)
tstr 0,0,0,0,-1,0,0,0,0,0,0d7h,0,0 ; (22 cycles)
db 039h,0ddh,03dh,0e1h ; expected crc
tmsg 'ldd<r> (2)....................'
; ldi<r> (1) (44 cycles)
ldi1: db 0ffh ; flag mask
tstr 0edh,0a0h,0,0,0fe30h,003cdh,06058h,msbt+2,msbt,1,004h,060h,02688h
tstr 0,010h,0,0,0,0,0,0,0,0,0,0,0 ; (2 cycles)
tstr 0,0,0,0,-1,0,0,0,0,0,0d7h,0,0 ; (22 cycles)
db 0f7h,082h,0b0h,0d1h ; expected crc
tmsg 'ldi<r> (1)....................'
; ldi<r> (2) (44 cycles)
ldi2: db 0ffh ; flag mask
tstr 0edh,0a0h,0,0,04aceh,0c26eh,0b188h,msbt+2,msbt,2,014h,02dh,0a39fh
tstr 0,010h,0,0,0,0,0,0,0,0,0,0,0 ; (2 cycles)
tstr 0,0,0,0,-1,0,0,0,0,0,0d7h,0,0 ; (22 cycles)
db 0e9h,0eah,0d0h,0aeh ; expected crc
tmsg 'ldi<r> (2)....................'
; neg (16,384 cycles)
negop: db 0ffh ; flag mask
tstr 0edh,044h,0,0,038a2h,05f6bh,0d934h,057e4h,0d2d6h,04642h,043h,05ah,009cch
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,-1,0 ; (16,384 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0,0,0 ; (1 cycle)
db 0d6h,038h,0ddh,06ah ; expected crc
tmsg 'neg...........................'
; <rld,rrd> (7168 cycles)
rldop: db 0ffh ; flag mask
tstr 0edh,067h,0,0,091cbh,0c48bh,0fa62h,msbt,0e720h,0b479h,040h,006h,08ae2h
tstr 0,8,0,0,0ffh,0,0,0,0,0,0,0,0 ; (512 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,-1,0 ; (14 cycles)
db 0ffh,082h,03eh,077h ; expected crc
tmsg '<rrd,rld>.....................'
; <rlca,rrca,rla,rra> (6144 cycles)
rot8080: db 0ffh ; flag mask
tstr 7,0,0,0,0cb92h,06d43h,00a90h,0c284h,00c53h,0f50eh,091h,0ebh,040fch
tstr 018h,0,0,0,0,0,0,0,0,0,0,-1,0 ; (1024 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles)
db 09bh,0a3h,080h,07ch ; expected crc
tmsg '<rlca,rrca,rla,rra>...........'
; shift/rotate (<ix,iy>+1) (416 cycles)
rotxy: db 0ffh ; flag mask
tstr 0ddh,0cbh,1,6,0ddafh,msbt-1,msbt-1,0ff3ch,0dbf6h,094f4h,082h,080h,061d9h
tstr 020h,0,0,038h,0,0,0,0,0,0,080h,0,0 ; (32 cycles)
tstr 0,0,0,0,0ffh,0,0,0,0,0,057h,0,0 ; (13 cycles)
db 071h,000h,034h,0cbh ; expected crc
tmsg 'shf/rot (<ix,iy>+1)...........'
; shift/rotate <b,c,d,e,h,l,(hl),a> (6784 cycles)
rotz80: db 0ffh ; flag mask
tstr 0cbh,0,0,0,0ccebh,05d4ah,0e007h,msbt,01395h,030eeh,043h,078h,03dadh
tstr 0,03fh,0,0,0,0,0,0,0,0,080h,0,0 ; (128 cycles)
tstr 0,0,0,0,0ffh,0,0,0,-1,-1,057h,-1,0 ; (53 cycles)
db 0a4h,025h,058h,033h ; expected crc
tmsg 'shf/rot <b,c,d,e,h,l,(hl),a>..'
; <set,res> n,<b,c,d,e,h,l,(hl),a> (7936 cycles)
srz80: db 0ffh ; flag mask
tstr 0cbh,080h,0,0,02cd5h,097abh,039ffh,msbt,0d14bh,06ab2h,053h,027h,0b538h
tstr 0,07fh,0,0,0,0,0,0,0,0,0,0,0 ; (128 cycles)
tstr 0,0,0,0,0ffh,0,0,0,-1,-1,0d7h,-1,0 ; (62 cycles)
db 08bh,057h,0f0h,008h ; expected crc
tmsg '<set,res> n,<bcdehl(hl)a>.....'
; <set,res> n,(<ix,iy>+1) (1792 cycles)
srzx: db 0ffh ; flag mask
tstr 0ddh,0cbh,1,086h,0fb44h,msbt-1,msbt-1,0ba09h,068beh,032d8h,010h,05eh,0a867h
tstr 020h,0,0,078h,0,0,0,0,0,0,0,0,0 ; (128 cycles)
tstr 0,0,0,0,0ffh,0,0,0,0,0,0d7h,0,0 ;(14 cycles)
db 0cch,063h,0f9h,08ah ; expected crc
tmsg '<set,res> n,(<ix,iy>+1).......'
; ld (<ix,iy>+1),<b,c,d,e> (1024 cycles)
st8ix1: db 0ffh ; flag mask
tstr 0ddh,070h,1,0,0270dh,msbt-1,msbt-1,0b73ah,0887bh,099eeh,086h,070h,0ca07h
tstr 020h,003h,0,0,0,1,1,0,0,0,0,0,0 ; (32 cycles)
tstr 0,0,0,0,0,0,0,0,-1,-1,0,0,0 ; (32 cycles)
db 004h,062h,06ah,0bfh ; expected crc
tmsg 'ld (<ix,iy>+1),<b,c,d,e>......'
; ld (<ix,iy>+1),<h,l> (256 cycles)
st8ix2: db 0ffh ; flag mask
tstr 0ddh,074h,1,0,0b664h,msbt-1,msbt-1,0e8ach,0b5f5h,0aafeh,012h,010h,09566h
tstr 020h,001h,0,0,0,1,1,0,0,0,0,0,0 ; (16 cycles)
tstr 0,0,0,0,0,0,0,-1,0,0,0,0,0 ; (32 cycles)
db 06ah,01ah,088h,031h ; expected crc
tmsg 'ld (<ix,iy>+1),<h,l>..........'
; ld (<ix,iy>+1),a (64 cycles)
st8ix3: db 0ffh ; flag mask
tstr 0ddh,077h,1,0,067afh,msbt-1,msbt-1,04f13h,00644h,0bcd7h,050h,0ach,05fafh
tstr 020h,0,0,0,0,1,1,0,0,0,0,0,0 ; (8 cycles)
tstr 0,0,0,0,0,0,0,0,0,0,0,-1,0 ; (8 cycles)
db 0cch,0beh,05ah,096h ; expected crc
tmsg 'ld (<ix,iy>+1),a..............'
; ld (<bc,de>),a (96 cycles)
stabd: db 0ffh ; flag mask
tstr 2,0,0,0,00c3bh,0b592h,06cffh,0959eh,msbt,msbt+1,0c1h,021h,0bde7h
tstr 018h,0,0,0,0,0,0,0,0,0,0,0,0 ; (4 cycles)
tstr 0,0,0,0,-1,0,0,0,0,0,0,-1,0 ; (24 cycles)
db 07ah,04ch,011h,04fh ; expected crc
tmsg 'ld (<bc,de>),a................'
; start test pointed to by (hl)
stt: push hl
ld a,(hl) ; get pointer to test
inc hl
ld h,(hl)
ld l,a
ld a,(hl) ; flag mask
ld (flgmsk+1),a
inc hl
push hl
ld de,20
add hl,de ; point to incmask
ld de,counter
call initmask
pop hl
push hl
ld de,20+20
add hl,de ; point to scanmask
ld de,shifter
call initmask
ld hl,shifter
ld (hl),1 ; first bit
pop hl
push hl
ld de,iut ; copy initial instruction under test
ld bc,4
ldir
ld de,msbt ; copy initial machine state
ld bc,16
ldir
ld de,20+20+4 ; skip incmask, scanmask and expcrc
add hl,de
ex de,hl
ld c,9
call bdos ; show test name
call initcrc ; initialise crc
; test loop
tlp: ld a,(iut)
cp 076h ; pragmatically avoid halt intructions
jp z,tlp2
and a,0dfh
cp 0ddh
jp nz,tlp1
ld a,(iut+1)
cp 076h
tlp1: call nz,test ; execute the test instruction
tlp2: call count ; increment the counter
call nz,shift ; shift the scan bit
pop hl ; pointer to test case
jp z,tlp3 ; done if shift returned NZ
ld de,20+20+20
add hl,de ; point to expected crc
call cmpcrc
ld de,okmsg
jp z,tlpok
ld de,ermsg1
ld c,9
call bdos
call phex8
ld de,ermsg2
ld c,9
call bdos
ld hl,crcval
call phex8
ld de,crlf
tlpok: ld c,9
call bdos
pop hl
inc hl
inc hl
ret
tlp3: push hl
ld a,1 ; initialise count and shift scanners
ld (cntbit),a
ld (shfbit),a
ld hl,counter
ld (cntbyt),hl
ld hl,shifter
ld (shfbyt),hl
ld b,4 ; bytes in iut field
pop hl ; pointer to test case
push hl
ld de,iut
call setup ; setup iut
ld b,16 ; bytes in machine state
ld de,msbt
call setup ; setup machine state
jp tlp
; setup a field of the test case
; b = number of bytes
; hl = pointer to base case
; de = destination
setup: call subyte
inc hl
dec b
jp nz,setup
ret
subyte: push bc
push de
push hl
ld c,(hl) ; get base byte
ld de,20
add hl,de ; point to incmask
ld a,(hl)
cp 0
jp z,subshf
ld b,8 ; 8 bits
subclp: rrca
push af
ld a,0
call c,nxtcbit ; get next counter bit if mask bit was set
xor c ; flip bit if counter bit was set
rrca
ld c,a
pop af
dec b
jp nz,subclp
ld b,8
subshf: ld de,20
add hl,de ; point to shift mask
ld a,(hl)
cp 0
jp z,substr
ld b,8 ; 8 bits
sbshf1: rrca
push af
ld a,0
call c,nxtsbit ; get next shifter bit if mask bit was set
xor c ; flip bit if shifter bit was set
rrca
ld c,a
pop af
dec b
jp nz,sbshf1
substr: pop hl
pop de
ld a,c
ld (de),a ; mangled byte to destination
inc de
pop bc
ret
; get next counter bit in low bit of a
cntbit: ds 1
cntbyt: ds 2
nxtcbit: push bc
push hl
ld hl,(cntbyt)
ld b,(hl)
ld hl,cntbit
ld a,(hl)
ld c,a
rlca
ld (hl),a
cp a,1
jp nz,ncb1
ld hl,(cntbyt)
inc hl
ld (cntbyt),hl
ncb1: ld a,b
and c
pop hl
pop bc
ret z
ld a,1
ret
; get next shifter bit in low bit of a
shfbit: ds 1
shfbyt: ds 2
nxtsbit: push bc
push hl
ld hl,(shfbyt)
ld b,(hl)
ld hl,shfbit
ld a,(hl)
ld c,a
rlca
ld (hl),a
cp a,1
jp nz,nsb1
ld hl,(shfbyt)
inc hl
ld (shfbyt),hl
nsb1: ld a,b
and c
pop hl
pop bc
ret z
ld a,1
ret
; clear memory at hl, bc bytes
clrmem: push af
push bc
push de
push hl
ld (hl),0
ld d,h
ld e,l
inc de
dec bc
ldir
pop hl
pop de
pop bc
pop af
ret
; initialise counter or shifter
; de = pointer to work area for counter or shifter
; hl = pointer to mask
initmask:
push de
ex de,hl
ld bc,20+20
call clrmem ; clear work area
ex de,hl
ld b,20 ; byte counter
ld c,1 ; first bit
ld d,0 ; bit counter
imlp: ld e,(hl)
imlp1: ld a,e
and a,c
jp z,imlp2
inc d
imlp2: ld a,c
rlca
ld c,a
cp a,1
jp nz,imlp1
inc hl
dec b
jp nz,imlp
; got number of 1-bits in mask in reg d
ld a,d
and 0f8h
rrca
rrca
rrca ; divide by 8 (get byte offset)
ld l,a
ld h,0
ld a,d
and a,7 ; bit offset
inc a
ld b,a
ld a,080h
imlp3: rlca
dec b
jp nz,imlp3
pop de
add hl,de
ld de,20
add hl,de
ld (hl),a
ret
; multi-byte counter
count: push bc
push de
push hl
ld hl,counter ; 20 byte counter starts here
ld de,20 ; somewhere in here is the stop bit
ex de,hl
add hl,de
ex de,hl
cntlp: inc (hl)
ld a,(hl)
cp 0
jp z,cntlp1 ; overflow to next byte
ld b,a
ld a,(de)
and a,b ; test for terminal value
jp z,cntend
ld (hl),0 ; reset to zero
cntend: pop bc
pop de
pop hl
ret
cntlp1: inc hl
inc de
jp cntlp
; multi-byte shifter
shift: push bc
push de
push hl
ld hl,shifter ; 20 byte shift register starts here
ld de,20 ; somewhere in here is the stop bit
ex de,hl
add hl,de
ex de,hl
shflp: ld a,(hl)
or a
jp z,shflp1
ld b,a
ld a,(de)
and b
jp nz,shlpe
ld a,b
rlca
cp a,1
jp nz,shflp2
ld (hl),0
inc hl
inc de
shflp2: ld (hl),a
xor a ; set Z
shlpe: pop hl
pop de
pop bc
ret
shflp1: inc hl
inc de
jp shflp
counter: ds 2*20
shifter: ds 2*20
; test harness
test: push af
push bc
push de
push hl
if 0
ld de,crlf
ld c,9
call bdos
ld hl,iut
ld b,4
call hexstr
ld e,' '
ld c,2
call bdos
ld b,16
ld hl,msbt
call hexstr
endif
di ; disable interrupts
ld (spsav),sp ; save stack pointer
ld sp,msbt+2 ; point to test-case machine state
pop iy ; and load all regs
pop ix
pop hl
pop de
pop bc
pop af
ld sp,(spbt)
iut: ds 4 ; max 4 byte instruction under test
ld (spat),sp ; save stack pointer
ld sp,spat
push af ; save other registers
push bc
push de
push hl
push ix
push iy
ld sp,(spsav) ; restore stack pointer
ei ; enable interrupts
ld hl,(msbt) ; copy memory operand
ld (msat),hl
ld hl,flgsat ; flags after test
ld a,(hl)
flgmsk: and a,0d7h ; mask-out irrelevant bits (self-modified code!)
ld (hl),a
ld b,16 ; total of 16 bytes of state
ld de,msat
ld hl,crcval
tcrc: ld a,(de)
inc de
call updcrc ; accumulate crc of this test case
dec b
jp nz,tcrc
if 0
ld e,' '
ld c,2
call bdos
ld hl,crcval
call phex8
ld de,crlf
ld c,9
call bdos
ld hl,msat
ld b,16
call hexstr
ld de,crlf
ld c,9
call bdos
endif
pop hl
pop de
pop bc
pop af
ret
; machine state after test
msat: ds 14 ; memop,iy,ix,hl,de,bc,af
spat: ds 2 ; stack pointer after test
; ZMAC/MAXAM doesn't like ':' after label with EQUs
flgsat equ spat-2 ; flags
spsav: ds 2 ; saved stack pointer
; display hex string (pointer in hl, byte count in b)
hexstr: ld a,(hl)
call phex2
inc hl
dec b
jp nz,hexstr
ret
; display hex
; display the big-endian 32-bit value pointed to by hl
phex8: push af
push bc
push hl
ld b,4
ph8lp: ld a,(hl)
call phex2
inc hl
dec b
jp nz,ph8lp
pop hl
pop bc
pop af
ret
; display byte in a
phex2: push af
rrca
rrca
rrca
rrca
call phex1
pop af
; fall through
; display low nibble in a
phex1: push af
push bc
push de
push hl
and a,0fh
cp a,10
jp c,ph11
add a,'a'-'9'-1
ph11: add a,'0'
ld e,a
ld c,2
call bdos
pop hl
pop de
pop bc
pop af
ret
bdos push af
push bc
push de
push hl
call 5
pop hl
pop de
pop bc
pop af
ret
msg1: db 'Z80all instruction exerciser',10,13,'$'
msg2: db 'Tests complete'
crlf: db 10,13,'$'
okmsg: db ' OK',10,13,'$'
ermsg1: db ' ERROR **** crc expected:$'
ermsg2: db ' found:$'
; compare crc
; hl points to value to compare to crcval
cmpcrc: push bc
push de
push hl
ld de,crcval
ld b,4
cclp: ld a,(de)
cp a,(hl)
jp nz,cce
inc hl
inc de
dec b
jp nz,cclp
cce: pop hl
pop de
pop bc
ret
; 32-bit crc routine
; entry: a contains next byte, hl points to crc
; exit: crc updated
updcrc: push af
push bc
push de
push hl
push hl
ld de,3
add hl,de ; point to low byte of old crc
xor a,(hl) ; xor with new byte
ld l,a
ld h,0
add hl,hl ; use result as index into table of 4 byte entries
add hl,hl
ex de,hl
ld hl,crctab
add hl,de ; point to selected entry in crctab
ex de,hl
pop hl
ld bc,4 ; c = byte count, b = accumulator
crclp: ld a,(de)
xor a,b
ld b,(hl)
ld (hl),a
inc de
inc hl
dec c
jp nz,crclp
if 0
ld hl,crcval
call phex8
ld de,crlf
ld c,9
call bdos
endif
pop hl
pop de
pop bc
pop af
ret
initcrc:push af
push bc
push hl
ld hl,crcval
ld a,0ffh
ld b,4
icrclp: ld (hl),a
inc hl
dec b
jp nz,icrclp
pop hl
pop bc
pop af
ret
crcval ds 4
crctab: db 000h,000h,000h,000h
db 077h,007h,030h,096h
db 0eeh,00eh,061h,02ch
db 099h,009h,051h,0bah
db 007h,06dh,0c4h,019h
db 070h,06ah,0f4h,08fh
db 0e9h,063h,0a5h,035h
db 09eh,064h,095h,0a3h
db 00eh,0dbh,088h,032h
db 079h,0dch,0b8h,0a4h
db 0e0h,0d5h,0e9h,01eh
db 097h,0d2h,0d9h,088h
db 009h,0b6h,04ch,02bh
db 07eh,0b1h,07ch,0bdh
db 0e7h,0b8h,02dh,007h
db 090h,0bfh,01dh,091h
db 01dh,0b7h,010h,064h
db 06ah,0b0h,020h,0f2h
db 0f3h,0b9h,071h,048h
db 084h,0beh,041h,0deh
db 01ah,0dah,0d4h,07dh
db 06dh,0ddh,0e4h,0ebh
db 0f4h,0d4h,0b5h,051h
db 083h,0d3h,085h,0c7h
db 013h,06ch,098h,056h
db 064h,06bh,0a8h,0c0h
db 0fdh,062h,0f9h,07ah
db 08ah,065h,0c9h,0ech
db 014h,001h,05ch,04fh
db 063h,006h,06ch,0d9h
db 0fah,00fh,03dh,063h
db 08dh,008h,00dh,0f5h
db 03bh,06eh,020h,0c8h
db 04ch,069h,010h,05eh
db 0d5h,060h,041h,0e4h
db 0a2h,067h,071h,072h
db 03ch,003h,0e4h,0d1h
db 04bh,004h,0d4h,047h
db 0d2h,00dh,085h,0fdh
db 0a5h,00ah,0b5h,06bh
db 035h,0b5h,0a8h,0fah
db 042h,0b2h,098h,06ch
db 0dbh,0bbh,0c9h,0d6h
db 0ach,0bch,0f9h,040h
db 032h,0d8h,06ch,0e3h
db 045h,0dfh,05ch,075h
db 0dch,0d6h,00dh,0cfh
db 0abh,0d1h,03dh,059h
db 026h,0d9h,030h,0ach
db 051h,0deh,000h,03ah
db 0c8h,0d7h,051h,080h
db 0bfh,0d0h,061h,016h
db 021h,0b4h,0f4h,0b5h
db 056h,0b3h,0c4h,023h
db 0cfh,0bah,095h,099h
db 0b8h,0bdh,0a5h,00fh
db 028h,002h,0b8h,09eh
db 05fh,005h,088h,008h
db 0c6h,00ch,0d9h,0b2h
db 0b1h,00bh,0e9h,024h
db 02fh,06fh,07ch,087h
db 058h,068h,04ch,011h
db 0c1h,061h,01dh,0abh
db 0b6h,066h,02dh,03dh
db 076h,0dch,041h,090h
db 001h,0dbh,071h,006h
db 098h,0d2h,020h,0bch
db 0efh,0d5h,010h,02ah
db 071h,0b1h,085h,089h
db 006h,0b6h,0b5h,01fh
db 09fh,0bfh,0e4h,0a5h
db 0e8h,0b8h,0d4h,033h
db 078h,007h,0c9h,0a2h
db 00fh,000h,0f9h,034h
db 096h,009h,0a8h,08eh
db 0e1h,00eh,098h,018h
db 07fh,06ah,00dh,0bbh
db 008h,06dh,03dh,02dh
db 091h,064h,06ch,097h
db 0e6h,063h,05ch,001h
db 06bh,06bh,051h,0f4h
db 01ch,06ch,061h,062h
db 085h,065h,030h,0d8h
db 0f2h,062h,000h,04eh
db 06ch,006h,095h,0edh
db 01bh,001h,0a5h,07bh
db 082h,008h,0f4h,0c1h
db 0f5h,00fh,0c4h,057h
db 065h,0b0h,0d9h,0c6h
db 012h,0b7h,0e9h,050h
db 08bh,0beh,0b8h,0eah
db 0fch,0b9h,088h,07ch
db 062h,0ddh,01dh,0dfh
db 015h,0dah,02dh,049h
db 08ch,0d3h,07ch,0f3h
db 0fbh,0d4h,04ch,065h
db 04dh,0b2h,061h,058h
db 03ah,0b5h,051h,0ceh
db 0a3h,0bch,000h,074h
db 0d4h,0bbh,030h,0e2h
db 04ah,0dfh,0a5h,041h
db 03dh,0d8h,095h,0d7h
db 0a4h,0d1h,0c4h,06dh
db 0d3h,0d6h,0f4h,0fbh
db 043h,069h,0e9h,06ah
db 034h,06eh,0d9h,0fch
db 0adh,067h,088h,046h
db 0dah,060h,0b8h,0d0h
db 044h,004h,02dh,073h
db 033h,003h,01dh,0e5h
db 0aah,00ah,04ch,05fh
db 0ddh,00dh,07ch,0c9h
db 050h,005h,071h,03ch
db 027h,002h,041h,0aah
db 0beh,00bh,010h,010h
db 0c9h,00ch,020h,086h
db 057h,068h,0b5h,025h
db 020h,06fh,085h,0b3h
db 0b9h,066h,0d4h,009h
db 0ceh,061h,0e4h,09fh
db 05eh,0deh,0f9h,00eh
db 029h,0d9h,0c9h,098h
db 0b0h,0d0h,098h,022h
db 0c7h,0d7h,0a8h,0b4h
db 059h,0b3h,03dh,017h
db 02eh,0b4h,00dh,081h
db 0b7h,0bdh,05ch,03bh
db 0c0h,0bah,06ch,0adh
db 0edh,0b8h,083h,020h
db 09ah,0bfh,0b3h,0b6h
db 003h,0b6h,0e2h,00ch
db 074h,0b1h,0d2h,09ah
db 0eah,0d5h,047h,039h
db 09dh,0d2h,077h,0afh
db 004h,0dbh,026h,015h
db 073h,0dch,016h,083h
db 0e3h,063h,00bh,012h
db 094h,064h,03bh,084h
db 00dh,06dh,06ah,03eh
db 07ah,06ah,05ah,0a8h
db 0e4h,00eh,0cfh,00bh
db 093h,009h,0ffh,09dh
db 00ah,000h,0aeh,027h
db 07dh,007h,09eh,0b1h
db 0f0h,00fh,093h,044h
db 087h,008h,0a3h,0d2h
db 01eh,001h,0f2h,068h
db 069h,006h,0c2h,0feh
db 0f7h,062h,057h,05dh
db 080h,065h,067h,0cbh
db 019h,06ch,036h,071h
db 06eh,06bh,006h,0e7h
db 0feh,0d4h,01bh,076h
db 089h,0d3h,02bh,0e0h
db 010h,0dah,07ah,05ah
db 067h,0ddh,04ah,0cch
db 0f9h,0b9h,0dfh,06fh
db 08eh,0beh,0efh,0f9h
db 017h,0b7h,0beh,043h
db 060h,0b0h,08eh,0d5h
db 0d6h,0d6h,0a3h,0e8h
db 0a1h,0d1h,093h,07eh
db 038h,0d8h,0c2h,0c4h
db 04fh,0dfh,0f2h,052h
db 0d1h,0bbh,067h,0f1h
db 0a6h,0bch,057h,067h
db 03fh,0b5h,006h,0ddh
db 048h,0b2h,036h,04bh
db 0d8h,00dh,02bh,0dah
db 0afh,00ah,01bh,04ch
db 036h,003h,04ah,0f6h
db 041h,004h,07ah,060h
db 0dfh,060h,0efh,0c3h
db 0a8h,067h,0dfh,055h
db 031h,06eh,08eh,0efh
db 046h,069h,0beh,079h
db 0cbh,061h,0b3h,08ch
db 0bch,066h,083h,01ah
db 025h,06fh,0d2h,0a0h
db 052h,068h,0e2h,036h
db 0cch,00ch,077h,095h
db 0bbh,00bh,047h,003h
db 022h,002h,016h,0b9h
db 055h,005h,026h,02fh
db 0c5h,0bah,03bh,0beh
db 0b2h,0bdh,00bh,028h
db 02bh,0b4h,05ah,092h
db 05ch,0b3h,06ah,004h
db 0c2h,0d7h,0ffh,0a7h
db 0b5h,0d0h,0cfh,031h
db 02ch,0d9h,09eh,08bh
db 05bh,0deh,0aeh,01dh
db 09bh,064h,0c2h,0b0h
db 0ech,063h,0f2h,026h
db 075h,06ah,0a3h,09ch
db 002h,06dh,093h,00ah
db 09ch,009h,006h,0a9h
db 0ebh,00eh,036h,03fh
db 072h,007h,067h,085h
db 005h,000h,057h,013h
db 095h,0bfh,04ah,082h
db 0e2h,0b8h,07ah,014h
db 07bh,0b1h,02bh,0aeh
db 00ch,0b6h,01bh,038h
db 092h,0d2h,08eh,09bh
db 0e5h,0d5h,0beh,00dh
db 07ch,0dch,0efh,0b7h
db 00bh,0dbh,0dfh,021h
db 086h,0d3h,0d2h,0d4h
db 0f1h,0d4h,0e2h,042h
db 068h,0ddh,0b3h,0f8h
db 01fh,0dah,083h,06eh
db 081h,0beh,016h,0cdh
db 0f6h,0b9h,026h,05bh
db 06fh,0b0h,077h,0e1h
db 018h,0b7h,047h,077h
db 088h,008h,05ah,0e6h
db 0ffh,00fh,06ah,070h
db 066h,006h,03bh,0cah
db 011h,001h,00bh,05ch
db 08fh,065h,09eh,0ffh
db 0f8h,062h,0aeh,069h
db 061h,06bh,0ffh,0d3h
db 016h,06ch,0cfh,045h
db 0a0h,00ah,0e2h,078h
db 0d7h,00dh,0d2h,0eeh
db 04eh,004h,083h,054h
db 039h,003h,0b3h,0c2h
db 0a7h,067h,026h,061h
db 0d0h,060h,016h,0f7h
db 049h,069h,047h,04dh
db 03eh,06eh,077h,0dbh
db 0aeh,0d1h,06ah,04ah
db 0d9h,0d6h,05ah,0dch
db 040h,0dfh,00bh,066h
db 037h,0d8h,03bh,0f0h
db 0a9h,0bch,0aeh,053h
db 0deh,0bbh,09eh,0c5h
db 047h,0b2h,0cfh,07fh
db 030h,0b5h,0ffh,0e9h
db 0bdh,0bdh,0f2h,01ch
db 0cah,0bah,0c2h,08ah
db 053h,0b3h,093h,030h
db 024h,0b4h,0a3h,0a6h
db 0bah,0d0h,036h,005h
db 0cdh,0d7h,006h,093h
db 054h,0deh,057h,029h
db 023h,0d9h,067h,0bfh
db 0b3h,066h,07ah,02eh
db 0c4h,061h,04ah,0b8h
db 05dh,068h,01bh,002h
db 02ah,06fh,02bh,094h
db 0b4h,00bh,0beh,037h
db 0c3h,00ch,08eh,0a1h
db 05ah,005h,0dfh,01bh
db 02dh,002h,0efh,08dh
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