CD LM90 LM90 You should see the classic blue LM90 startup screen. If you get an "Out of memory" error, adjust DOSBox’s memory settings in the .conf file:
[autoexec] # Mount the LM90 folder as drive C: mount C C:\Legacy\LM90 C: # Set environment for LM90 SET LM90=C:\LM90 # Launch LM90 (optional: manual start) # LM90.EXE For serial communication (COM1), add: logic master lm90 software download zip 2021
C: CD DISK1 INSTALL Follow the prompts to install to C:\LM90 . Once installed, at the DOSBox prompt type: CD LM90 LM90 You should see the classic
LM90_v9.05/ ├── DISK1/ │ ├── INSTALL.EXE │ ├── LM90.EXE │ ├── LM90.OVL │ └── ... ├── DISK2/ ├── DISK3/ ├── DOCS/ │ ├── LM90_Manual.pdf │ └── Release_Notes.txt ├── DOSBOX/ │ ├── DOSBox.exe │ ├── dosbox.conf (pre-configured for LM90) │ └── SDL.dll └── README_2021.txt The README file (dated 2021) typically explains how to mount the disks in DOSBox, set serial port passthrough, and optimize memory. set serial port passthrough
serial1=directserial realport:COM1 In DOSBox, type: