An Intel 8080 microprocessor emulator. Features:
- Accurate and complete (see test results below)
- Supports async 8080 interrupts (see tests/bin/INTERRUPT.COM)
- Portable:
- libi8080 is C89-compatible, freestanding, and can run without a std library (define I8080_NO_STDLIB)
- Testing tool is written in C++11 (GCC >= 4.9, clang >= 3.1, MSVC >= VS 2015 should work)
- Supports CMake versions as low as 3.1.
- libi8080: base library that can be used standalone to emulate an 8080.
- i8080emu: command line tool to run tests or simple CP/M-80 binaries.
Install CMake. Open terminal (or Windows Powershell), cd to the source directory and run:
mkdir build
cd build
cmake ..
cmake --build .
./i8080emu --help
Emulate an Intel 8080.
Usage:
i8080emu [OPTION...]
-h, --help Show usage.
--con Emulate CP/M-80 console. Program will be loaded at
0x100. (default: true)
--kintr Convert Ctrl+C interrupts to 8080 interrupts.
-f, --file <file> Input file.
Test options:
-t, --tests Run tests.
--testdir <dir> Look for test files in this directory. (default:
testbin)
./i8080emu --kintr -f testbin/INTERRUPT.COM
This test requires user input, so it does not run from --tests by default.
Waiting for interrupt...
^CReceived, exit to DOS.
./i8080emu --tests
********** Running test 1/4: TST8080.COM
MICROCOSM ASSOCIATES 8080/8085 CPU DIAGNOSTIC
VERSION 1.0 (C) 1980
CPU IS OPERATIONAL
**********
********** Running test 2/4: CPUTEST.COM
DIAGNOSTICS II V1.2 - CPU TEST
COPYRIGHT (C) 1981 - SUPERSOFT ASSOCIATES
ABCDEFGHIJKLMNOPQRSTUVWXYZ
CPU IS 8080/8085
BEGIN TIMING TEST
END TIMING TEST
CPU TESTS OK
**********
********** Running test 3/4: 8080PRE.COM
8080 Preliminary tests complete
**********
********** Running test 4/4: 8080EXM.COM
8080 instruction exerciser
dad <b,d,h,sp>................ PASS! crc is:14474ba6
aluop nn...................... PASS! crc is:9e922f9e
aluop <b,c,d,e,h,l,m,a>....... PASS! crc is:cf762c86
<daa,cma,stc,cmc>............. PASS! crc is:bb3f030c
<inr,dcr> a................... PASS! crc is:adb6460e
<inr,dcr> b................... PASS! crc is:83ed1345
<inx,dcx> b................... PASS! crc is:f79287cd
<inr,dcr> c................... PASS! crc is:e5f6721b
<inr,dcr> d................... PASS! crc is:15b5579a
<inx,dcx> d................... PASS! crc is:7f4e2501
<inr,dcr> e................... PASS! crc is:cf2ab396
<inr,dcr> h................... PASS! crc is:12b2952c
<inx,dcx> h................... PASS! crc is:9f2b23c0
<inr,dcr> l................... PASS! crc is:ff57d356
<inr,dcr> m................... PASS! crc is:92e963bd
<inx,dcx> sp.................. PASS! crc is:d5702fab
lhld nnnn..................... PASS! crc is:a9c3d5cb
shld nnnn..................... PASS! crc is:e8864f26
lxi <b,d,h,sp>,nnnn........... PASS! crc is:fcf46e12
ldax <b,d>.................... PASS! crc is:2b821d5f
mvi <b,c,d,e,h,l,m,a>,nn...... PASS! crc is:eaa72044
mov <bcdehla>,<bcdehla>....... PASS! crc is:10b58cee
sta nnnn / lda nnnn........... PASS! crc is:ed57af72
<rlc,rrc,ral,rar>............. PASS! crc is:e0d89235
stax <b,d>.................... PASS! crc is:2b0471e9
Tests complete
**********