1 files changed, 0 insertions, 58 deletions
diff --git a/ex3.hex b/ex3.hex
deleted file mode 100644
index 58ccbffa..00000000
--- a/ex3.hex
+++ /dev/null
@@ -1,58 +0,0 @@
-# Draw pixels in response to keyboard events, starting from the top-left
-# and in raster order.
-#
-# To run, first prepare a realistically sized disk image:
-#   dd if=/dev/zero of=disk.img count=20160  # 512-byte sectors, so 10MB
-# Load the program on the disk image:
-#   cat baremetal/boot.hex baremetal/ex3.hex  |bootstrap/bootstrap run hex  > a.bin
-#   dd if=a.bin of=disk.img conv=notrunc
-# To run:
-#   qemu-system-i386 disk.img
-# Or:
-#   bochs -f baremetal/boot.bochsrc  # boot.bochsrc loads disk.img
-
-# main:  (address 0x9000)
-
-# eax <- LFB
-8b  # copy *rm32 to r32
-  05  # 00/mod/indirect 000/r32/eax 101/rm32/use-disp32
-  28 81 00 00 # disp32 [label]
-
-# var read index/ecx: byte = 0
-31 c9  # ecx <- xor ecx;  11/direct 001/r32/ecx 001/rm32/ecx
-
-# $loop:
-  # CL = *read index
-  8a  # copy m8 at r32 to r8
-    0d  # 00/mod/indirect 001/r8/cl 101/rm32/use-disp32
-    cc 7d 00 00  # disp32 [label]
-  # CL = *(keyboard buffer + ecx)
-  8a  # copy m8 at r32 to r8
-    89  # 10/mod/*+disp32 001/r8/cl 001/rm32/ecx
-    d0 7d 00 00  # disp32 [label]
-  # if (CL == 0) loop (spin loop)
-  80
-    f9  # 11/mod/direct 111/subop/compare 001/rm8/CL
-    00  # imm8
-  74 ef  # loop -17 [label]
-# offset 0x19:
-  # otherwise increment read index
-  fe  # increment byte
-    05  # 00/mod/indirect 000/subop/increment 101/rm32/use-disp32
-    cc 7d 00 00  # disp32 [label]
-  # clear top nibble of index (keyboard buffer is circular)
-  80  # and byte
-    25  # 00/mod/indirect 100/subop/and 101/rm32/use-disp32
-    cc 7d 00 00  # disp32 [label]
-    0f  # imm8
-  # print a pixel in fluorescent green
-  c6  # copy imm8 to m8 at rm32
-    00  # 00/mod/indirect 000/subop 000/rm32/eax
-    31  # imm32
-  40  # increment eax
-  eb dc # loop -36 [label]
-
-# $break:
-e9 fb ff ff ff  # hang indefinitely
-
-# vim:ft=subx