On Tuesday, June 21, 2011 10:50:14 am Henri Hennebert wrote: > On 06/21/2011 15:01, John Baldwin wrote: > > Index: zfsldr.S > > =================================================================== > > --- zfsldr.S (revision 223339) > > +++ zfsldr.S (working copy) > > @@ -234,9 +234,12 @@ nread.1: xor %ecx,%ecx # Get > > callw read # Read from disk > > lea 0x10(%bp),%sp # Clear stack > > jnc return # If success, return > > - mov $msg_read,%si # Otherwise, set the error > > - # message and fall through to > > - # the error routine > > + mov %ah,%al # Format > > + mov $read_err,%di # error > > + call hex8 # code > > + mov $msg_read,%si # Set the error message and > > + # fall through to the error > > + # routine > > /* > > * Print out the error message pointed to by %ds:(%si) followed > > * by a prompt, wait for a keypress, and then reboot the machine. > > @@ -296,12 +299,28 @@ read.1: mov $msg_chs,%si > > jmp error > > msg_chs: .asciz "CHS not supported" > > > > +/* > > + * Convert AL to hex, saving the result to [EDI]. > > + */ > > +hex8: push %ax # Save > > + shrb $0x4,%al # Do upper > > + call hex8.1 # 4 > > + pop %ax # Restore > > +hex8.1: andb $0xf,%al # Get lower 4 > > + cmpb $0xa,%al # Convert > > + sbbb $0x69,%al # to hex > > + das # digit > > + orb $0x20,%al # To lower case > > + stosb # Save char > > + ret # (Recursive) > > + > > /* Messages */ > > > > -msg_read: .asciz "Read" > > -msg_part: .asciz "Boot" > > +msg_read: .ascii "Read error: " > > +read_err: .asciz "XX" > > +msg_part: .asciz "Boot error" > > > > -prompt: .asciz " error\r\n" > > +prompt: .asciz "\r\n" > > > > .org PRT_OFF,0x90 > > > I get > > Read error: 01
Hmm, that would be 'invalid parameter'. Can you add a 'foo: jmp foo' infinite loop and move it around to figure out which read call is failing? -- John Baldwin _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
