2 ms·
GEOS was written largely in assembly from everything I’ve read. Apparently this and other things did not go over well with developers (apparently the apps need
by mapgrep 6y ago
GEOS was written largely in assembly from everything I’ve read.
Apparently this and other things did not go over well with developers (apparently the apps needed to be done at least partly in assembly too). Wikipedia:
GeoWorks attempted to get third-party developers but was unable to get much support due to expense of the developer kit — which ran $1,000 just for the manuals — and the difficult programming environment, which required a second PC networked via serial port in order to run the debugger.
Even though PC/GEOS is referred to as an "operating system", it still requires DOS in order to load. GEOS and its applications were written in a mix of 8086 assembly (Espire) and C (GOC), both with non-standard language extensions to support the object-oriented design.[5][9]