On an Oracle VM VirtualBOX version 3.2.12 machine running under MS-Windows Vista Home Premium SP2, I tried out DEBUG of FreeDOS (printing a character on screen with DOS service 02h, and printing a string on screen with DOS service 09).
The output was in both cases very different from that of DEBUG of MS-DOS 6.00.
So for those who, like me, didn't yet now, be warned: FreeDOS is absolutely not 100% compatible with MS-DOS.
FreeDOS and DEBUG
FreeDOS and DEBUG
In the good old days, on a machine with 1 MB RAM, to increase execution speed, we copied our programs from a hard disk to a RAMdisk.
Now, on a machine with 4 GB RAM, we slow down execution speed by swapping content of RAM to and from a hard disk.
Now, on a machine with 4 GB RAM, we slow down execution speed by swapping content of RAM to and from a hard disk.
Re: FreeDOS and DEBUG
its actually quite incompatible in many cases. imo, FreeDOS is a joke. and it almost seems to have gotten worse over the years. i just use DR-DOS 7.03 when i need DOS.SBS wrote:On an Oracle VM VirtualBOX version 3.2.12 machine running under MS-Windows Vista Home Premium SP2, I tried out DEBUG of FreeDOS (printing a character on screen with DOS service 02h, and printing a string on screen with DOS service 09).
The output was in both cases very different from that of DEBUG of MS-DOS 6.00.
So for those who, like me, didn't yet now, be warned: FreeDOS is absolutely not 100% compatible with MS-DOS.