Oops. Remove some debugging code used to display a hexdump of the sector

we just loaded from the disk.  The code to call it was commented out, and
it easily fit into the extra sector, but remove it anyway as it is
unneeded.

1 files changed, 3 insertions, 66 deletions

diff --git a/sys/boot/i386/boot0/boot0.s b/sys/boot/i386/boot0/boot0.s
index 7b2e130..85ce25a 100644
--- a/sys/boot/i386/boot0/boot0.s
+++ b/sys/boot/i386/boot0/boot0.s
@@ -301,12 +301,6 @@ main.15:	movw $LOAD,%bx			# Address for read
 		jne main.10			# No
 		callw putn			# Leave some space
 		jmp *%bx			# Invoke bootstrap
-/*
-		movw %bx,%si			# Memory to dump
-		movw $SECTOR_SIZE/16,%dx	# Lines to display
-		callw memdump			# Dump memory
-hang:		jmp hang			# Spin
-*/
 
 #
 # Display routines
@@ -485,66 +479,9 @@ os_netbsd:	.ascii "NetBS";		.byte 'D'|0x80
 os_bsdos:	.ascii "BSD/O";		.byte 'S'|0x80
 
 #
-# A set of functions to print out various parts of %ax in hex
-#
-hex16:		callw hex16.1			# Do upper 8
-hex16.1:	xchgb %ah,%al			# Save/restore
-hex8:		push %ax			# Save
-		shrb $0x4,%al			# Do upper
-		callw 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
-		push %ax			# Save
-		callw putchr			# Print char
-		pop %ax				# Restore
-		retw				# (Recursive)
-
+# Fake partition entry created at the end of the table used when loading
+# boot0 at the very beginning and when loading an MBR from another disk when
+# F5 is pressed.
 #
-# Function to display a hexdump of memory.  Call with:
-#
-# %dx		- word     - number of lines to display, each line is 16 bytes
-# %ds:(%si)	- caddr_t  - memory to display
-#
-memdump:	movw %si,%ax			# Display the
-		callw hex16			#  memory offset
-		movb $':',%al			# Output a seperator
-		callw putchr			#  between the
-		movb $' ',%al			#  offset and
-		callw putchr			#  the data
-		push %si			# Save %si
-		movw $16,%cx			# Bytes per line
-memdump.1:	lodsb				# Get next byte
-		callw hex8			#  and display it
-		movb $' ',%al			# Determine which
-		cmpb $9,%cl			#  seperator
-		jne memdump.2			#  to use
-		movb $'-',%al			#  and then
-memdump.2:	callw putchr			#  display it
-		loop memdump.1			# Next byte
-		movb $'|',%al			# Start of character
-		callw putchr			#  display
-		pop %si				# Restore %si
-		movb $16,%cl			# Bytes per line
-memdump.3:	lodsb				# Get next byte
-		cmpb $32,%al			# Control character?
-		jb memdump.4			# Yes, so modify
-		cmpb $0x80,%al			# Upper ASCII?
-		jb memdump.5			# No, use raw characer
-memdump.4:	movb $'.',%al			# Use '.' instead of bad char
-memdump.5:	callw putchr			# Output character
-		loop memdump.3			# Do whole line
-		movb $'|',%al			# Start of character
-		callw putchr			#  display
-		push %si			# Save %si
-		callw putn			# New line
-		pop %si				# Restore %si
-		dec %dx				# Done yet?
-		jnz memdump			# No, keep going
-		retw				# Yes, return
-
 		.org SECTOR_SIZE*NUM_SECTORS, 0x0
 fake: