diff options
| author | jhb <jhb@FreeBSD.org> | 2001-11-07 01:20:33 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2001-11-07 01:20:33 +0000 |
| commit | a4e77dae6a16c485e0262079fc4590c157667d97 (patch) | |
| tree | 8d9ef886f6fadb92d57c44be8223d2632aea334f | |
| parent | 178d6888d63728d377fd8046bc4f60db2fee864e (diff) | |
| download | FreeBSD-src-a4e77dae6a16c485e0262079fc4590c157667d97.zip FreeBSD-src-a4e77dae6a16c485e0262079fc4590c157667d97.tar.gz | |
Remove a few more debugging bits and turn on twiddle output while reading
from the CD. This turns off the dual console output to COM1.
| -rw-r--r-- | sys/boot/i386/cdboot/cdboot.s | 18 |
1 files changed, 3 insertions, 15 deletions
diff --git a/sys/boot/i386/cdboot/cdboot.s b/sys/boot/i386/cdboot/cdboot.s index 78fef20..bf30bff 100644 --- a/sys/boot/i386/cdboot/cdboot.s +++ b/sys/boot/i386/cdboot/cdboot.s @@ -103,9 +103,6 @@ start: cld # string ops inc mov %ax,%ds # setup the mov %ax,%es # data segments mov %dl,drive # Save BIOS boot device - mov $0xe3,%al - xor %dx,%dx - int $0x14 # Init COM1 9600,n,8,1 mov $msg_welcome,%si # %ds:(%si) -> welcome message call putstr # display the welcome message # @@ -140,8 +137,7 @@ load_vd: push %eax # Save %eax jne load_vd # No, read next mov $msg_novd,%si # No VD jmp error # Halt -have_vd: mov $msg_vd,%si # Have Primary VD - call putstr +have_vd: # Have Primary VD # # Lookup the loader binary. # @@ -387,7 +383,7 @@ read: push %si # Save mov %ebx,%eax # Convert address shr $4,%eax # to segment mov %ax,edd_addr+0x2 # and store -read.retry: #call twiddle # Entertain the user +read.retry: call twiddle # Entertain the user push %dx # Save mov $edd_packet,%si # Address Packet mov %dh,edd_len # Set length @@ -429,14 +425,7 @@ putstr.putc: call putc # output char # # Display a single char. # -putc: push %ax - push %dx - mov $0x1,%ah - xor %dx,%dx - int $0x14 - pop %dx - pop %ax - mov $0x7,%bx # attribute for output +putc: mov $0x7,%bx # attribute for output mov $0xe,%ah # BIOS: put_char int $0x10 # call BIOS, print char in %al ret # Return to caller @@ -553,7 +542,6 @@ msg_relocate: .asciz "Relocating the loader and the BTX\r\n" msg_jump: .asciz "Starting the BTX loader\r\n" msg_badread: .ascii "Read Error: 0x" hex_error: .ascii "00\r\n" -msg_vd: .asciz "Read Volume Descriptor\r\n" msg_novd: .asciz "Could not find Primary Volume Descriptor\r\n" msg_lookup: .asciz "Looking up " msg_lookup2: .asciz "... " |
