I'm trying to get the demo hello world assembly language program working on the 68K-MBC under CP/M 68K. It assembles and links without any error messages. When I run it there is no output, and no errors, after a second or two I get the CP/M command line prompt. I have no prior experience with CP/M. I don't know if it is actually executing. I'm wondering if anyone has a simple 68K assembly language that displays output on the console and works with CP/M V1.3 on the 68K-MBC. I'm able to write and successfully run assembly language programs that use the getchar and putchar functions to do I/O. I want to eliminate the use of these C functions and read from and write to the serial port directly. These are the commands I've tried with and without -t400.
C>AS68 -L -U -S C: F:ASMDEMO.S
C>lo68 -r -i -t400 -o f:asmdemo.68k f:asmdemo.o
C>f:asmdemo
C>
Thanks for any help anyone is able to provide...Randy.
C>AS68 -L -U -S C: F:ASMDEMO.S
C>lo68 -r -i -t400 -o f:asmdemo.68k f:asmdemo.o
C>f:asmdemo
C>
Thanks for any help anyone is able to provide...Randy.