Hi Glenn, Hi all, On Mon, 23 Dec 2002 19:42:29 -0500, Glenn McCorkle wrote:
> mov si,sp; > int 0x25; > cli;mov sp,si;sti; > pushf; > lea si,boot;add si,0x1f0;sub al,al; > popf;jc q; > Now..... how do we re-write ths section of drvtypes.cpp so that > we CAN look for stacker drives WITHOUT locking-up the machine ???? I suuggest just a small change: push bp; // I didn't test whether MS-DOS 7.10 trashes bp... int 0x25; // read logical sector pop si; // throw away the flags saved by INT pop bp; // bp points to the local variables on the stack lea si, [boot + 0x1f0]; // this doesn't modify any flags sub al, al; // al = 0 jc q; // an error occured during int 0x25 I haven't tested the above code yet, but it should work. Greetings, Michal
