From 97d52bc338a8291c7abf444b5876087da6ebe799 Mon Sep 17 00:00:00 2001 From: hap Date: Mon, 23 Oct 2017 17:19:49 +0200 Subject: zexall: split standalone binary into zexall/interface and include source code (nw) --- src/zexall/interface.h | 15 + src/zexall/zexall.cpp | 6 +- src/zexall/zexall.h | 23 +- src/zexall/zexall.z80 | 1545 ++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 1569 insertions(+), 20 deletions(-) create mode 100644 src/zexall/interface.h create mode 100644 src/zexall/zexall.z80 (limited to 'src/zexall') diff --git a/src/zexall/interface.h b/src/zexall/interface.h new file mode 100644 index 00000000000..d3a972babd7 --- /dev/null +++ b/src/zexall/interface.h @@ -0,0 +1,15 @@ +// license:GPL-2.0 +// copyright-holders:Kevin Horton + +// interface binary +// source code: This was written directly in machine code. In other words: the hex data is the source. + +static const uint8_t interface_binary[0x51] = +{ + 0xc3, 0x33, 0x00, 0x00, 0x00, 0x3e, 0x02, 0xb9, 0x20, 0x06, 0x7b, 0xcd, 0x20, 0x00, 0x18, 0x22, // .3...>.. .{. .." + 0x3e, 0x09, 0xb9, 0x20, 0x1d, 0x1a, 0xfe, 0x24, 0x28, 0x18, 0xcd, 0x20, 0x00, 0x13, 0x18, 0xf5, // >.. ...$(.. .... + 0x32, 0xff, 0xff, 0x21, 0xfe, 0xff, 0x3a, 0xfd, 0xff, 0x4f, 0x34, 0x3a, 0xfd, 0xff, 0xb9, 0x28, // 2..!..:..O4:...( + 0xf9, 0xc9, 0xc9, 0xf3, 0x3e, 0x00, 0x32, 0x21, 0x01, 0xd3, 0x01, 0x3a, 0x03, 0x00, 0xcb, 0x27, // ....>.2!...:...' + 0x4f, 0x06, 0x00, 0x21, 0x3a, 0x01, 0x09, 0x22, 0x20, 0x01, 0x31, 0xc0, 0x00, 0xcd, 0x17, 0x01, // O..!:.." .1..... + 0x76, // v +}; diff --git a/src/zexall/zexall.cpp b/src/zexall/zexall.cpp index 2429ae7622a..f6be84f0ce2 100644 --- a/src/zexall/zexall.cpp +++ b/src/zexall/zexall.cpp @@ -10,8 +10,8 @@ #include "emu.h" #include "cpu/z80/z80.h" - #include "zexall.h" +#include "interface.h" class zexall_state : public driver_device { @@ -57,7 +57,9 @@ void zexall_state::machine_reset() terminate_string = ""; // program is self-modifying, so need to refresh it on each run - memcpy(m_main_ram, zexall_program, 0x228a); + memset(m_main_ram, 0xff, 0x10000); + memcpy(m_main_ram, interface_binary, 0x51); + memcpy(m_main_ram + 0x0100, zexall_binary, 0x2189); } diff --git a/src/zexall/zexall.h b/src/zexall/zexall.h index a276e509eed..db426588e72 100644 --- a/src/zexall/zexall.h +++ b/src/zexall/zexall.h @@ -1,24 +1,11 @@ // license:GPL-2.0 -// copyright-holders:Frank Cringle,Blargg,Kevin Horton +// copyright-holders:Frank Cringle -static const uint8_t zexall_program[8841] = +// zexall binary +// source code: see zexall.z80 + +static const uint8_t zexall_binary[0x2189] = { - 0xc3, 0x33, 0x00, 0x00, 0x00, 0x3e, 0x02, 0xb9, 0x20, 0x06, 0x7b, 0xcd, 0x20, 0x00, 0x18, 0x22, // .3...>.. .{. .." - 0x3e, 0x09, 0xb9, 0x20, 0x1d, 0x1a, 0xfe, 0x24, 0x28, 0x18, 0xcd, 0x20, 0x00, 0x13, 0x18, 0xf5, // >.. ...$(.. .... - 0x32, 0xff, 0xff, 0x21, 0xfe, 0xff, 0x3a, 0xfd, 0xff, 0x4f, 0x34, 0x3a, 0xfd, 0xff, 0xb9, 0x28, // 2..!..:..O4:...( - 0xf9, 0xc9, 0xc9, 0xf3, 0x3e, 0x00, 0x32, 0x21, 0x01, 0xd3, 0x01, 0x3a, 0x03, 0x00, 0xcb, 0x27, // ....>.2!...:...' - 0x4f, 0x06, 0x00, 0x21, 0x3a, 0x01, 0x09, 0x22, 0x20, 0x01, 0x31, 0xc0, 0x00, 0xcd, 0x17, 0x01, // O..!:.." .1..... - 0x76, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // v............... - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // ................ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // ................ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // ................ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // ................ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // ................ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // ................ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // ................ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // ................ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // ................ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // ................ 0xc3, 0x13, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // ................ 0x00, 0x00, 0x00, 0x2a, 0x06, 0x00, 0xf9, 0x11, 0xda, 0x1d, 0x0e, 0x09, 0xcd, 0xce, 0x1d, 0x21, // ...*...........! 0x3a, 0x01, 0x7e, 0x23, 0xb6, 0xca, 0x2f, 0x01, 0x2b, 0xcd, 0xe2, 0x1a, 0xc3, 0x22, 0x01, 0x11, // :.~#../.+....".. diff --git a/src/zexall/zexall.z80 b/src/zexall/zexall.z80 new file mode 100644 index 00000000000..658fc27207c --- /dev/null +++ b/src/zexall/zexall.z80 @@ -0,0 +1,1545 @@ + .title 'Z80 instruction set exerciser' + +; 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. + + aseg + org 100h + + jp start + +; machine state before test (needs to be at predictably constant address) +msbt: ds 14 +spbt: ds 2 + +; 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 daa + 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 neg + dw rld + dw rot8080 + dw rotxy + dw rotz80 + dw srz80 + dw srzx + dw st8ix1 + dw st8ix2 + dw st8ix3 + dw stabd + dw 0 + +tstr: macro insn,memop,iy,ix,hl,de,bc,flags,acc,sp + local lab +&lab: db insn + ds &lab+4-$,0 + dw &memop,&iy,&ix,&hl,&de,&bc + db &flags + db &acc + dw &sp + if $-&lab ne 20 + error 'missing parameter' + endif + endm + +tmsg: macro m + local lab +&lab: db m + if $ ge &lab+30 + error 'message too long' + else + ds &lab+30-$,'.' + endif + db '$' + endm + +; hl, (38,912 cycles) +adc16: db 0ffh ; flag mask + tstr <0edh,042h>,0832ch,04f88h,0f22bh,0b339h,07e1fh,01563h,0d3h,089h,0465eh + tstr <0,038h>,0,0,0,0f821h,0,0,0,0,0 ; (1024 cycles) + tstr 0,0,0,0,-1,-1,-1,0d7h,0,-1 ; (38 cycles) + db 0d4h,08ah,0d5h,019h ; expected crc + tmsg ' hl,' + +; add hl, (19,456 cycles) +add16: db 0ffh ; flag mask + tstr 9,0c4a5h,0c4c7h,0d226h,0a050h,058eah,08566h,0c6h,0deh,09bc9h + tstr 030h,0,0,0,0f821h,0,0,0,0,0 ; (512 cycles) + tstr 0,0,0,0,-1,-1,-1,0d7h,0,-1 ; (38 cycles) + db 0d9h,0a4h,0cah,005h ; expected crc + tmsg 'add hl,' + +; add ix, (19,456 cycles) +add16x: db 0ffh ; flag mask + tstr <0ddh,9>,0ddach,0c294h,0635bh,033d3h,06a76h,0fa20h,094h,068h,036f5h + tstr <0,030h>,0,0,0f821h,0,0,0,0,0,0 ; (512 cycles) + tstr 0,0,0,-1,0,-1,-1,0d7h,0,-1 ; (38 cycles) + db 0b1h,0dfh,08eh,0c0h ; expected crc + tmsg 'add ix,' + +; add iy, (19,456 cycles) +add16y: db 0ffh ; flag mask + tstr <0fdh,9>,0c7c2h,0f407h,051c1h,03e96h,00bf4h,0510fh,092h,01eh,071eah + tstr <0,030h>,0,0f821h,0,0,0,0,0,0,0 ; (512 cycles) + tstr 0,0,-1,0,0,-1,-1,0d7h,0,-1 ; (38 cycles) + db 039h,0c8h,058h,09bh ; expected crc + tmsg 'add iy,' + +; aluop a,nn (28,672 cycles) +alu8i: db 0ffh ; flag mask + tstr 0c6h,09140h,07e3ch,07a67h,0df6dh,05b61h,00b29h,010h,066h,085b2h + tstr 038h,0,0,0,0,0,0,0,-1,0 ; (2048 cycles) + tstr <0,-1>,0,0,0,0,0,0,0d7h,0,0 ; (14 cycles) + db 051h,0c1h,09ch,02eh ; expected crc + tmsg 'aluop a,nn' + +; aluop a, (753,664 cycles) +alu8r: db 0ffh ; flag mask + tstr 080h,0c53eh,0573ah,04c4dh,msbt,0e309h,0a666h,0d0h,03bh,0adbbh + tstr 03fh,0,0,0,0,0,0,0,-1,0 ; (16,384 cycles) + tstr 0,0ffh,0,0,0,-1,-1,0d7h,0,0 ; (46 cycles) + db 006h,0c7h,0aah,08eh ; expected crc + tmsg 'aluop a,' + +; aluop a, (376,832 cycles) +alu8rx: db 0ffh ; flag mask + tstr <0ddh,084h>,0d6f7h,0c76eh,0accfh,02847h,022ddh,0c035h,0c5h,038h,0234bh + tstr <020h,039h>,0,0,0,0,0,0,0,-1,0 ; (8,192 cycles) + tstr 0,0ffh,0,0,0,-1,-1,0d7h,0,0 ; (46 cycles) + db 0a8h,086h,0cch,044h ; expected crc + tmsg 'aluop a,' + +; aluop a,(+1) (229,376 cycles) +alu8x: db 0ffh ; flag mask + tstr <0ddh,086h,1>,090b7h,msbt-1,msbt-1,032fdh,0406eh,0c1dch,045h,06eh,0e5fah + tstr <020h,038h>,0,1,1,0,0,0,0,-1,0 ; (16,384 cycles) + tstr 0,0ffh,0,0,0,0,0,0d7h,0,0 ; (14 cycles) + db 0d3h,0f2h,0d7h,04ah ; expected crc + tmsg 'aluop a,(+1)' + +; bit n,(+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 0,0ffh,0,0,0,0,0,0,0,0 ; (8 cycles) + db 083h,053h,04eh,0e1h ; expected crc + tmsg 'bit n,(+1)' + +; bit n, (49,152 cycles) +bitz80: db 0ffh ; flag mask + tstr <0cbh,040h>,03ef1h,09dfch,07acch,msbt,0be61h,07a86h,050h,024h,01998h + tstr <0,03fh>,0,0,0,0,0,0,053h,0,0 ; (1024 cycles) + tstr 0,0ffh,0,0,0,-1,-1,0,-1,0 ; (48 cycles) + db 05eh,002h,00eh,098h ; expected crc + tmsg 'bit n,' + +; cpd (1) (6144 cycles) +cpd1: db 0ffh ; flag mask + tstr <0edh,0a9h>,0c7b6h,072b4h,018f6h,msbt+17,08dbdh,1,0c0h,030h,094a3h + tstr <0,010h>,0,0,0,0,0,010,0,-1,0 ; (1024 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 013h,04bh,062h,02dh ; expected crc + tmsg 'cpd' + +; cpi (1) (6144 cycles) +cpi1: db 0ffh ; flag mask + tstr <0edh,0a1h>,04d48h,0af4ah,0906bh,msbt,04e71h,1,093h,06ah,0907ch + tstr <0,010h>,0,0,0,0,0,010,0,-1,0 ; (1024 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 02dh,0a4h,02dh,019h ; expected crc + tmsg 'cpi' + +; +daa: db 0ffh ; flag mask + tstr 027h,02141h,009fah,01d60h,0a559h,08d5bh,09079h,004h,08eh,0299dh + tstr 018h,0,0,0,0,0,0,0d7h,-1,0 ; (65,536 cycles) + tstr 0,0,0,0,0,0,0,0,0,0 ; (1 cycle) + db 06dh,02dh,0d2h,013h ; expected crc + tmsg '' + +; a (3072 cycles) +inca: db 0ffh ; flag mask + tstr 03ch,04adfh,0d5d8h,0e598h,08a2bh,0a7b0h,0431bh,044h,05ah,0d030h + tstr 001h,0,0,0,0,0,0,0,-1,0 ; (512 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 081h,0fah,081h,000h ; expected crc + tmsg ' a' + +; b (3072 cycles) +incb: db 0ffh ; flag mask + tstr 004h,0d623h,0432dh,07a61h,08180h,05a86h,01e85h,086h,058h,09bbbh + tstr 001h,0,0,0,0,0,0ff00h,0,0,0 ; (512 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 077h,0f3h,05ah,073h ; expected crc + tmsg ' b' + +; bc (1536 cycles) +incbc: db 0ffh ; flag mask + tstr 003h,0cd97h,044abh,08dc9h,0e3e3h,011cch,0e8a4h,002h,049h,02a4dh + tstr 008h,0,0,0,0,0,0f821h,0,0,0 ; (256 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 0d2h,0aeh,03bh,0ech ; expected crc + tmsg ' bc' + +; c (3072 cycles) +incc: db 0ffh ; flag mask + tstr 00ch,0d789h,00935h,0055bh,09f85h,08b27h,0d208h,095h,005h,00660h + tstr 001h,0,0,0,0,0,0ffh,0,0,0 ; (512 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 01ah,0f6h,012h,0a7h ; expected crc + tmsg ' c' + +; d (3072 cycles) +incd: db 0ffh ; flag mask + tstr 014h,0a0eah,05fbah,065fbh,0981ch,038cch,0debch,043h,05ch,003bdh + tstr 001h,0,0,0,0,0ff00h,0,0,0,0 ; (512 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 0d1h,046h,0bfh,051h ; expected crc + tmsg ' d' + +; de (1536 cycles) +incde: db 0ffh ; flag mask + tstr 013h,0342eh,0131dh,028c9h,00acah,09967h,03a2eh,092h,0f6h,09d54h + tstr 008h,0,0,0,0,0f821h,0,0,0,0 ; (256 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 0aeh,0c6h,0d4h,02ch ; expected crc + tmsg ' de' + +; e (3072 cycles) +ince: db 0ffh ; flag mask + tstr 01ch,0602fh,04c0dh,02402h,0e2f5h,0a0f4h,0a10ah,013h,032h,05925h + tstr 001h,0,0,0,0,0ffh,0,0,0,0 ; (512 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 0cah,08ch,06ah,0c2h ; expected crc + tmsg ' e' + +; h (3072 cycles) +inch: db 0ffh ; flag mask + tstr 024h,01506h,0f2ebh,0e8ddh,0262bh,011a6h,0bc1ah,017h,006h,02818h + tstr 001h,0,0,0,0ff00h,0,0,0,0,0 ; (512 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 056h,00fh,095h,05eh ; expected crc + tmsg ' h' + +; hl (1536 cycles) +inchl: db 0ffh ; flag mask + tstr 023h,0c3f4h,007a5h,01b6dh,04f04h,0e2c2h,0822ah,057h,0e0h,0c3e1h + tstr 008h,0,0,0,0f821h,0,0,0,0,0 ; (256 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 0fch,00dh,06dh,04ah ; expected crc + tmsg ' hl' + +; ix (1536 cycles) +incix: db 0ffh ; flag mask + tstr <0ddh,023h>,0bc3ch,00d9bh,0e081h,0adfdh,09a7fh,096e5h,013h,085h,00be2h + tstr <0,8>,0,0,0f821h,0,0,0,0,0,0 ; (256 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 0a5h,04dh,0beh,031h ; expected crc + tmsg ' ix' + +; iy (1536 cycles) +inciy: db 0ffh ; flag mask + tstr <0fdh,023h>,09402h,0637ah,03182h,0c65ah,0b2e9h,0abb4h,016h,0f2h,06d05h + tstr <0,8>,0,0f821h,0,0,0,0,0,0,0 ; (256 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 050h,05dh,051h,0a3h ; expected crc + tmsg ' iy' + +; l (3072 cycles) +incl: db 0ffh ; flag mask + tstr 02ch,08031h,0a520h,04356h,0b409h,0f4c1h,0dfa2h,0d1h,03ch,03ea2h + tstr 001h,0,0,0,0ffh,0,0,0,0,0 ; (512 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 0a0h,0a1h,0b4h,09fh ; expected crc + tmsg ' l' + +; (hl) (3072 cycles) +incm: db 0ffh ; flag mask + tstr 034h,0b856h,00c7ch,0e53eh,msbt,0877eh,0da58h,015h,05ch,01f37h + tstr 001h,0ffh,0,0,0,0,0,0,0,0 ; (512 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 028h,029h,05eh,0ceh ; expected crc + tmsg ' (hl)' + +; sp (1536 cycles) +incsp: db 0ffh ; flag mask + tstr 033h,0346fh,0d482h,0d169h,0deb6h,0a494h,0f476h,053h,002h,0855bh + tstr 008h,0,0,0,0,0,0,0,0,0f821h ; (256 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 05dh,0ach,0d5h,027h ; expected crc + tmsg ' sp' + +; (+1) (6144 cycles) +incx: db 0ffh ; flag mask + tstr <0ddh,034h,1>,0fa6eh,msbt-1,msbt-1,02c28h,08894h,05057h,016h,033h,0286fh + tstr <020h,1>,0ffh,0,0,0,0,0,0,0,0 ; (1024 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 00bh,095h,0a8h,0eah ; expected crc + tmsg ' (+1)' + +; ixh (3072 cycles) +incxh: db 0ffh ; flag mask + tstr <0ddh,024h>,0b838h,0316ch,0c6d4h,03e01h,08358h,015b4h,081h,0deh,04259h + tstr <0,1>,0,0ff00h,0,0,0,0,0,0,0 ; (512 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 06fh,046h,036h,062h ; expected crc + tmsg ' ixh' + +; ixl (3072 cycles) +incxl: db 0ffh ; flag mask + tstr <0ddh,02ch>,04d14h,07460h,076d4h,006e7h,032a2h,0213ch,0d6h,0d7h,099a5h + tstr <0,1>,0,0ffh,0,0,0,0,0,0,0 ; (512 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 002h,07bh,0efh,02ch ; expected crc + tmsg ' ixl' + +; iyh (3072 cycles) +incyh: db 0ffh ; flag mask + tstr <0ddh,024h>,02836h,09f6fh,09116h,061b9h,082cbh,0e219h,092h,073h,0a98ch + tstr <0,1>,0ff00h,0,0,0,0,0,0,0,0 ; (512 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 02dh,096h,06ch,0f3h ; expected crc + tmsg ' iyh' + +; iyl (3072 cycles) +incyl: db 0ffh ; flag mask + tstr <0ddh,02ch>,0d7c6h,062d5h,0a09eh,07039h,03e7eh,09f12h,090h,0d9h,0220fh + tstr <0,1>,0ffh,0,0,0,0,0,0,0,0 ; (512 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 036h,0c1h,01eh,075h ; expected crc + tmsg ' iyl' + +; ld ,(nnnn) (32 cycles) +ld161: db 0ffh ; flag mask + tstr <0edh,04bh,low msbt,high msbt>,0f9a8h,0f559h,093a4h,0f5edh,06f96h,0d968h,086h,0e6h,04bd8h + tstr <0,010h>,0,0,0,0,0,0,0,0,0 ; (2 cycles) + tstr 0,-1,0,0,0,0,0,0,0,0 ; (16 cycles) + db 04dh,045h,0a9h,0ach ; expected crc + tmsg 'ld ,(nnnn)' + +; ld hl,(nnnn) (16 cycles) +ld162: db 0ffh ; flag mask + tstr <02ah,low msbt,high msbt>,09863h,07830h,02077h,0b1feh,0b9fah,0abb8h,004h,006h,06015h + tstr 0,0,0,0,0,0,0,0,0,0 ; (1 cycle) + tstr 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,low msbt,high msbt>,08dfch,057d7h,02161h,0ca18h,0c185h,027dah,083h,01eh,0f460h + tstr 0,0,0,0,0,0,0,0,0,0 ; (1 cycles) + tstr 0,-1,0,0,0,0,0,0,0,0 ; (16 cycles) + db 07ah,0ceh,0a1h,01bh ; expected crc + tmsg 'ld sp,(nnnn)' + +; ld ,(nnnn) (32 cycles) +ld164: db 0ffh ; flag mask + tstr <0ddh,02ah,low msbt,high msbt>,0ded7h,0a6fah,0f780h,0244ch,087deh,0bcc2h,016h,063h,04c96h + tstr 020h,0,0,0,0,0,0,0,0,0 ; (2 cycles) + tstr 0,-1,0,0,0,0,0,0,0,0 ; (16 cycles) + db 085h,08bh,0f1h,06dh ; expected crc + tmsg 'ld ,(nnnn)' + +; ld (nnnn), (64 cycles) +ld165: db 0ffh ; flag mask + tstr <0edh,043h,low msbt,high msbt>,01f98h,0844dh,0e8ach,0c9edh,0c95dh,08f61h,080h,03fh,0c7bfh + tstr <0,010h>,0,0,0,0,0,0,0,0,0 ; (2 cycles) + tstr 0,0,0,0,0,-1,-1,0,0,0 ; (32 cycles) + db 064h,01eh,087h,015h ; expected crc + tmsg 'ld (nnnn),' + +; ld (nnnn),hl (16 cycles) +ld166: db 0ffh ; flag mask + tstr <022h,low msbt,high msbt>,0d003h,07772h,07f53h,03f72h,064eah,0e180h,010h,02dh,035e9h + tstr 0,0,0,0,0,0,0,0,0,0 ; (1 cycle) + tstr 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,low msbt,high msbt>,0c0dch,0d1d6h,0ed5ah,0f356h,0afdah,06ca7h,044h,09fh,03f0ah + tstr 0,0,0,0,0,0,0,0,0,0 ; (1 cycle) + tstr 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), (64 cycles) +ld168: db 0ffh ; flag mask + tstr <0ddh,022h,low msbt,high msbt>,06cc3h,00d91h,06900h,08ef8h,0e3d6h,0c3f7h,0c6h,0d9h,0c2dfh + tstr 020h,0,0,0,0,0,0,0,0,0 ; (2 cycles) + tstr 0,0,-1,-1,0,0,0,0,0,0 ; (32 cycles) + db 0bah,010h,02ah,06bh ; expected crc + tmsg 'ld (nnnn),' + +; ld ,nnnn (64 cycles) +ld16im: db 0ffh ; flag mask + tstr 1,05c1ch,02d46h,08eb9h,06078h,074b1h,0b30eh,046h,0d1h,030cch + tstr 030h,0,0,0,0,0,0,0,0,0 ; (4 cycles) + tstr <0,0ffh,0ffh>,0,0,0,0,0,0,0,0,0 ; (16 cycles) + db 0deh,039h,019h,069h ; expected crc + tmsg 'ld ,nnnn' + +; ld ,nnnn (32 cycles) +ld16ix: db 0ffh ; flag mask + tstr <0ddh,021h>,087e8h,02006h,0bd12h,0b69bh,07253h,0a1e5h,051h,013h,0f1bdh + tstr 020h,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 ,nnnn' + +; ld a,<(bc),(de)> (44 cycles) +ld8bd: db 0ffh ; flag mask + tstr 00ah,0b3a8h,01d2ah,07f8eh,042ach,msbt,msbt,0c6h,0b1h,0ef8eh + tstr 010h,0,0,0,0,0,0,0,0,0 ; (2 cycles) + tstr 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 ,nn (64 cycles) +ld8im: db 0ffh ; flag mask + tstr 6,0c407h,0f49dh,0d13dh,00339h,0de89h,07455h,053h,0c0h,05509h + tstr 038h,0,0,0,0,0,0,0,0,0 ; (8 cycles) + tstr 0,0,0,0,0,0,0,0,-1,0 ; (8 cycles) + db 0f1h,0dah,0b5h,056h ; expected crc + tmsg 'ld ,nn' + +; ld (+1),nn (32 cycles) +ld8imx: db 0ffh ; flag mask + tstr <0ddh,036h,1>,01b45h,msbt-1,msbt-1,0d5c1h,061c7h,0bdc4h,0c0h,085h,0cd16h + tstr 020h,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 (+1),nn' + +; ld ,(+1) (512 cycles) +ld8ix1: db 0ffh ; flag mask + tstr <0ddh,046h,1>,0d016h,msbt-1,msbt-1,04260h,07f39h,00404h,097h,04ah,0d085h + tstr <020h,018h>,0,1,1,0,0,0,0,0,0 ; (32 cycles) + tstr 0,-1,0,0,0,0,0,0,0,0 ; (16 cycles) + db 0cch,011h,006h,0a8h ; expected crc + tmsg 'ld ,(+1)' + +; ld ,(+1) (256 cycles) +ld8ix2: db 0ffh ; flag mask + tstr <0ddh,066h,1>,084e0h,msbt-1,msbt-1,09c52h,0a799h,049b6h,093h,000h,0eeadh + tstr <020h,008h>,0,1,1,0,0,0,0,0,0 ; (16 cycles) + tstr 0,-1,0,0,0,0,0,0,0,0 ; (16 cycles) + db 0fah,02ah,04dh,003h ; expected crc + tmsg 'ld ,(+1)' + +; ld a,(+1) (128 cycles) +ld8ix3: db 0ffh ; flag mask + tstr <0ddh,07eh,1>,0d8b6h,msbt-1,msbt-1,0c612h,0df07h,09cd0h,043h,0a6h,0a0e5h + tstr 020h,0,1,1,0,0,0,0,0,0 ; (8 cycles) + tstr 0,-1,0,0,0,0,0,0,0,0 ; (16 cycles) + db 0a5h,0e9h,0ach,064h ; expected crc + tmsg 'ld a,(+1)' + +; ld ,nn (32 cycles) +ld8ixy: db 0ffh ; flag mask + tstr <0ddh,026h>,03c53h,04640h,0e179h,07711h,0c107h,01afah,081h,0adh,05d9bh + tstr <020h,8>,0,0,0,0,0,0,0,0,0 ; (4 cycles) + tstr 0,0,0,0,0,0,0,0,-1,0 ; (8 cycles) + db 024h,0e8h,082h,08bh ; expected crc + tmsg 'ld ,nn' + +; ld , (3456 cycles) +ld8rr: db 0ffh ; flag mask + tstr 040h,072a4h,0a024h,061ach,msbt,082c7h,0718fh,097h,08fh,0ef8eh + tstr 03fh,0,0,0,0,0,0,0,0,0 ; (64 cycles) + tstr 0,0ffh,0,0,0,-1,-1,0d7h,-1,0 ; (54 cycles) + db 074h,04bh,001h,018h ; expected crc + tmsg 'ld ,' + +; ld , (6912 cycles) +ld8rrx: db 0ffh ; flag mask + tstr <0ddh,040h>,0bcc5h,msbt,msbt,msbt,02fc2h,098c0h,083h,01fh,03bcdh + tstr <020h,03fh>,0,0,0,0,0,0,0,0,0 ; (128 cycles) + tstr 0,0ffh,0,0,0,-1,-1,0d7h,-1,0 ; (54 cycles) + db 047h,08bh,0a3h,06bh ; expected crc + tmsg 'ld ,' + +; ld a,(nnnn) / ld (nnnn),a (44 cycles) +lda: db 0ffh ; flag mask + tstr <032h,low msbt,high msbt>,0fd68h,0f4ech,044a0h,0b543h,00653h,0cdbah,0d2h,04fh,01fd8h + tstr 008h,0,0,0,0,0,0,0,0,0 ; (2 cycle) + tstr 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 (1) (44 cycles) +ldd1: db 0ffh ; flag mask + tstr <0edh,0a8h>,09852h,068fah,066a1h,msbt+3,msbt+1,1,0c1h,068h,020b7h + tstr <0,010h>,0,0,0,0,0,0,0,0,0 ; (2 cycles) + tstr 0,-1,0,0,0,0,0,0d7h,0,0 ; (22 cycles) + db 094h,0f4h,027h,069h ; expected crc + tmsg 'ldd (1)' + +; ldd (2) (44 cycles) +ldd2: db 0ffh ; flag mask + tstr <0edh,0a8h>,0f12eh,0eb2ah,0d5bah,msbt+3,msbt+1,2,047h,0ffh,0fbe4h + tstr <0,010h>,0,0,0,0,0,0,0,0,0 ; (2 cycles) + tstr 0,-1,0,0,0,0,0,0d7h,0,0 ; (22 cycles) + db 039h,0ddh,03dh,0e1h ; expected crc + tmsg 'ldd (2)' + +; ldi (1) (44 cycles) +ldi1: db 0ffh ; flag mask + tstr <0edh,0a0h>,0fe30h,003cdh,06058h,msbt+2,msbt,1,004h,060h,02688h + tstr <0,010h>,0,0,0,0,0,0,0,0,0 ; (2 cycles) + tstr 0,-1,0,0,0,0,0,0d7h,0,0 ; (22 cycles) + db 0f7h,082h,0b0h,0d1h ; expected crc + tmsg 'ldi (1)' + +; ldi (2) (44 cycles) +ldi2: db 0ffh ; flag mask + tstr <0edh,0a0h>,04aceh,0c26eh,0b188h,msbt+2,msbt,2,014h,02dh,0a39fh + tstr <0,010h>,0,0,0,0,0,0,0,0,0 ; (2 cycles) + tstr 0,-1,0,0,0,0,0,0d7h,0,0 ; (22 cycles) + db 0e9h,0eah,0d0h,0aeh ; expected crc + tmsg 'ldi (2)' + +; neg (16,384 cycles) +neg: db 0ffh ; flag mask + tstr <0edh,044h>,038a2h,05f6bh,0d934h,057e4h,0d2d6h,04642h,043h,05ah,009cch + tstr 0,0,0,0,0,0,0,0d7h,-1,0 ; (16,384 cycles) + tstr 0,0,0,0,0,0,0,0,0,0 ; (1 cycle) + db 0d6h,038h,0ddh,06ah ; expected crc + tmsg 'neg' + +; (7168 cycles) +rld: db 0ffh ; flag mask + tstr <0edh,067h>,091cbh,0c48bh,0fa62h,msbt,0e720h,0b479h,040h,006h,08ae2h + tstr <0,8>,0ffh,0,0,0,0,0,0,0,0 ; (512 cycles) + tstr 0,0,0,0,0,0,0,0d7h,-1,0 ; (14 cycles) + db 0ffh,082h,03eh,077h ; expected crc + tmsg '' + +; (6144 cycles) +rot8080: db 0ffh ; flag mask + tstr 7,0cb92h,06d43h,00a90h,0c284h,00c53h,0f50eh,091h,0ebh,040fch + tstr 018h,0,0,0,0,0,0,0,-1,0 ; (1024 cycles) + tstr 0,0,0,0,0,0,0,0d7h,0,0 ; (6 cycles) + db 09bh,0a3h,080h,07ch ; expected crc + tmsg '' + +; shift/rotate (+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 0,0ffh,0,0,0,0,0,057h,0,0 ; (13 cycles) + db 071h,000h,034h,0cbh ; expected crc + tmsg 'shf/rot (+1)' + +; shift/rotate (6784 cycles) +rotz80: db 0ffh ; flag mask + tstr 0cbh,0ccebh,05d4ah,0e007h,msbt,01395h,030eeh,043h,078h,03dadh + tstr <0,03fh>,0,0,0,0,0,0,080h,0,0 ; (128 cycles) + tstr 0,0ffh,0,0,0,-1,-1,057h,-1,0 ; (53 cycles) + db 0a4h,025h,058h,033h ; expected crc + tmsg 'shf/rot ' + +; n, (7936 cycles) +srz80: db 0ffh ; flag mask + tstr <0cbh,080h>,02cd5h,097abh,039ffh,msbt,0d14bh,06ab2h,053h,027h,0b538h + tstr <0,07fh>,0,0,0,0,0,0,0,0,0 ; (128 cycles) + tstr 0,0ffh,0,0,0,-1,-1,0d7h,-1,0 ; (62 cycles) + db 08bh,057h,0f0h,008h ; expected crc + tmsg ' n,' + +; n,(+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 0,0ffh,0,0,0,0,0,0d7h,0,0 ;(14 cycles) + db 0cch,063h,0f9h,08ah ; expected crc + tmsg ' n,(+1)' + +; ld (+1), (1024 cycles) +st8ix1: db 0ffh ; flag mask + tstr <0ddh,070h,1>,0270dh,msbt-1,msbt-1,0b73ah,0887bh,099eeh,086h,070h,0ca07h + tstr <020h,003h>,0,1,1,0,0,0,0,0,0 ; (32 cycles) + tstr 0,0,0,0,0,-1,-1,0,0,0 ; (32 cycles) + db 004h,062h,06ah,0bfh ; expected crc + tmsg 'ld (+1),' + +; ld (+1), (256 cycles) +st8ix2: db 0ffh ; flag mask + tstr <0ddh,074h,1>,0b664h,msbt-1,msbt-1,0e8ach,0b5f5h,0aafeh,012h,010h,09566h + tstr <020h,001h>,0,1,1,0,0,0,0,0,0 ; (16 cycles) + tstr 0,0,0,0,-1,0,0,0,0,0 ; (32 cycles) + db 06ah,01ah,088h,031h ; expected crc + tmsg 'ld (+1),' + +; ld (+1),a (64 cycles) +st8ix3: db 0ffh ; flag mask + tstr <0ddh,077h,1>,067afh,msbt-1,msbt-1,04f13h,00644h,0bcd7h,050h,0ach,05fafh + tstr 020h,0,1,1,0,0,0,0,0,0 ; (8 cycles) + tstr 0,0,0,0,0,0,0,0,-1,0 ; (8 cycles) + db 0cch,0beh,05ah,096h ; expected crc + tmsg 'ld (+1),a' + +; ld (),a (96 cycles) +stabd: db 0ffh ; flag mask + tstr 2,00c3bh,0b592h,06cffh,0959eh,msbt,msbt+1,0c1h,021h,0bde7h + tstr 018h,0,0,0,0,0,0,0,0,0 ; (4 cycles) + tstr 0,-1,0,0,0,0,0,0,-1,0 ; (24 cycles) + db 07ah,04ch,011h,04fh ; expected crc + tmsg 'ld (),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 +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 '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 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 -- cgit v1.2.3