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-rw-r--r--apps/boot.hex14
1 files changed, 9 insertions, 5 deletions
diff --git a/apps/boot.hex b/apps/boot.hex
index 181fdcd4..e49dd2d8 100644
--- a/apps/boot.hex
+++ b/apps/boot.hex
@@ -225,12 +225,16 @@ e9 fb ff ff ff  # loop forever
   b0 20  # al <- 0x20
   e6 20  # port 0x20 <- al
   # read keyboard status (TODO: why bit 0? Doesn't line up with https://web.archive.org/web/20040604041507/http://panda.cs.ndsu.nodak.edu/~achapwes/PICmicro/keyboard/atkeyboard.html)
-  e4 64  # al <- port 0x64
-  a8 01  # set zf if bit 0 (least significant) is not set
-  74 00  # if bit 0 is not set, skip to epilogue  HERE
+#?   e4 64  # al <- port 0x64
+#?   a8 01  # set zf if bit 0 (least significant) is not set
+#?   74 11  # if bit 0 is not set, skip to epilogue
   # read keycode into eax
   31 c0  # eax <- xor eax;  11/direct 000/r32/eax 000/rm32/eax
   e4 60  # al <- port 0x60
+  # map key '1' to ascii; if eax == 2, eax = 0x31
+  3d 02 00 00 00  # compare eax with 0x02
+  75 0b  # if not equal, goto epilogue
+  b8 31 0f 00 00  # eax <- 0x0f31
   # print eax to top-left of screen (*0xb8000)
   89  # copy r32 to rm32
     05  # 00/mod/indirect 000/r32/eax 101/rm32/use-disp32
@@ -242,8 +246,8 @@ e9 fb ff ff ff  # loop forever
   cf  # iret
 
 # padding
-# 149
-                           00 00 00 00 00 00 00
+# 14f
+                                             00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00