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Diffstat (limited to 'zexdoc.z80')
| -rw-r--r-- | zexdoc.z80 | 1535 |
1 files changed, 0 insertions, 1535 deletions
diff --git a/zexdoc.z80 b/zexdoc.z80 deleted file mode 100644 index 8104d56..0000000 --- a/zexdoc.z80 +++ /dev/null @@ -1,1535 +0,0 @@ -; zexlax.z80 - Z80 instruction set exerciser -; Copyright (C) 1994 Frank D. Cringle -; -; 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. - - 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 - 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 - dw rldop - dw rot8080 - dw rotxy - dw rotz80 - dw srz80 - dw srzx - dw st8ix1 - dw st8ix2 - dw st8ix3 - dw stabd - dw 0 - -tstr macro insn1,insn2,insn3,insn4,memop,riy,rix,rhl,rde,rbc,flags,acc,rsp -.lab: db insn1,insn2,insn3,insn4 - dw memop,riy,rix,rhl,rde,rbc - db flags - db acc - dw rsp - endm - -tmsg: macro m - db m - db '$' - endm - -; <adc,sbc> hl,<bc,de,hl,sp> (38,912 cycles) -adc16: db 0c7h ; 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 0f8h,0b4h,0eah,0a9h ; expected crc - tmsg "<adc,sbc> hl,<bc,de,hl,sp>...." - -; add hl,<bc,de,hl,sp> (19,456 cycles) -add16: db 0c7h ; 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 089h,0fdh,0b6h,035h ; expected crc - tmsg "add hl,<bc,de,hl,sp>.........." - -; add ix,<bc,de,ix,sp> (19,456 cycles) -add16x: db 0c7h ; 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 0c1h,033h,079h,00bh ; expected crc - tmsg "add ix,<bc,de,ix,sp>.........." - -; add iy,<bc,de,iy,sp> (19,456 cycles) -add16y: db 0c7h ; 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 0e8h,081h,07bh,09eh ; expected crc - tmsg "add iy,<bc,de,iy,sp>.........." - -; aluop a,nn (28,672 cycles) -alu8i: db 0d7h ; 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 048h,079h,093h,060h ; expected crc - tmsg "aluop a,nn...................." - -; aluop a,<b,c,d,e,h,l,(hl),a> (753,664 cycles) -alu8r: db 0d7h ; 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 0feh,043h,0b0h,016h ; expected crc - tmsg "aluop a,<b,c,d,e,h,l,(hl),a>.." - -; aluop a,<ixh,ixl,iyh,iyl> (376,832 cycles) -alu8rx: db 0d7h ; 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 0a4h,002h,06dh,05ah ; expected crc - tmsg "aluop a,<ixh,ixl,iyh,iyl>....." - -; aluop a,(<ix,iy>+1) (229,376 cycles) -alu8x: db 0d7h ; 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 0e8h,049h,067h,06eh ; expected crc - tmsg "aluop a,(<ix,iy>+1)..........." - -; bit n,(<ix,iy>+1) (2048 cycles) -bitx: db 053h ; 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 0a8h,0eeh,008h,067h ; expected crc - tmsg "bit n,(<ix,iy>+1)............." - -; bit n,<b,c,d,e,h,l,(hl),a> (49,152 cycles) -bitz80: db 053h ; 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 07bh,055h,0e6h,0c8h ; expected crc - tmsg "bit n,<b,c,d,e,h,l,(hl),a>...." - -; cpd<r> (1) (6144 cycles) -cpd1: db 0d7h ; 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 0a8h,07eh,06ch,0fah ; expected crc - tmsg "cpd<r>........................" - -; cpi<r> (1) (6144 cycles) -cpi1: db 0d7h ; 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 006h,0deh,0b3h,056h ; expected crc - tmsg "cpi<r>........................" - -; <daa,cpl,scf,ccf> -daaop: db 0d7h ; 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 09bh,04bh,0a6h,075h ; expected crc - tmsg "<daa,cpl,scf,ccf>............." - -; <inc,dec> a (3072 cycles) -inca: db 0d7h ; 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 0d1h,088h,015h,0a4h ; expected crc - tmsg "<inc,dec> a..................." - -; <inc,dec> b (3072 cycles) -incb: db 0d7h ; 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 05fh,068h,022h,064h ; expected crc - tmsg "<inc,dec> b..................." - -; <inc,dec> bc (1536 cycles) -incbc: db 0d7h ; 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 0d7h ; 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 0c2h,084h,055h,04ch ; expected crc - tmsg "<inc,dec> c..................." - -; <inc,dec> d (3072 cycles) -incd: db 0d7h ; 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 045h,023h,0deh,010h ; expected crc - tmsg "<inc,dec> d..................." - -; <inc,dec> de (1536 cycles) -incde: db 0d7h ; 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 0d7h ; 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 0e1h,075h,0afh,0cch ; expected crc - tmsg "<inc,dec> e..................." - -; <inc,dec> h (3072 cycles) -inch: db 0d7h ; 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 01ch,0edh,084h,07dh ; expected crc - tmsg "<inc,dec> h..................." - -; <inc,dec> hl (1536 cycles) -inchl: db 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 056h,0cdh,006h,0f3h ; expected crc - tmsg "<inc,dec> l..................." - -; <inc,dec> (hl) (3072 cycles) -incm: db 0d7h ; 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 0b8h,03ah,0dch,0efh ; expected crc - tmsg "<inc,dec> (hl)................" - -; <inc,dec> sp (1536 cycles) -incsp: db 0d7h ; 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 0d7h ; 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 020h,058h,014h,070h ; expected crc - tmsg "<inc,dec> (<ix,iy>+1)........." - -; <inc,dec> ixh (3072 cycles) -incxh: db 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0fbh,0cbh,0bah,095h ; expected crc - tmsg "<inc,dec> iyl................." - -; ld <bc,de>,(nnnn) (32 cycles) -ld161: db 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 05ah,090h,07eh,0d4h ; expected crc - tmsg "ldd<r> (2)...................." - -; ldi<r> (1) (44 cycles) -ldi1: db 0d7h ; 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 09ah,0bdh,0f6h,0b5h ; expected crc - tmsg "ldi<r> (1)...................." - -; ldi<r> (2) (44 cycles) -ldi2: db 0d7h ; 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 0ebh,059h,089h,01bh ; expected crc - tmsg "ldi<r> (2)...................." - -; neg (16,384 cycles) -negop: db 0d7h ; 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 06ah,03ch,03bh,0bdh ; expected crc - tmsg "neg..........................." - -; <rld,rrd> (7168 cycles) -rldop: db 0d7h ; 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 095h,05bh,0a3h,026h ; expected crc - tmsg "<rrd,rld>....................." - -; <rlca,rrca,rla,rra> (6144 cycles) -rot8080: db 0d7h ; 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 025h,013h,030h,0aeh ; expected crc - tmsg "<rlca,rrca,rla,rra>..........." - -; shift/rotate (<ix,iy>+1) (416 cycles) -rotxy: db 0d7h ; 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,03ah,0cdh,081h ; expected crc - tmsg "shf/rot (<ix,iy>+1)..........." - -; shift/rotate <b,c,d,e,h,l,(hl),a> (6784 cycles) -rotz80: db 0d7h ; 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 0ebh,060h,04dh,058h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 0d7h ; 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 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 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 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 c - jp z,imlp2 - inc d -imlp2: ld a,c - rlca - ld c,a - cp 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 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 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 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 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 -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 0fh - cp 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 "Z80 instruction exerciser",10,13,"$" -msg2: db "Tests complete$" -okmsg: db " OK",10,13,"$" -ermsg1: db " ERROR **** crc expected:$" -ermsg2: db " found:$" -crlf: db 10,13,'$' - -; 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 (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 (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 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 - |