.

18 files changed, 45 insertions, 45 deletions

diff --git a/README.md b/README.md
index 3d376ebe..82eda010 100644
--- a/README.md
+++ b/README.md
@@ -12,8 +12,8 @@ Here's the Mu computer running [Conway's Game of Life](https://en.wikipedia.org/
 ```sh
 $ git clone https://github.com/akkartik/mu
 $ cd mu
-$ ./translate life.mu  # emit a bootable disk.img
-$ qemu-system-i386 disk.img
+$ ./translate life.mu  # emit a bootable code.img
+$ qemu-system-i386 code.img
 ```
 
 <img alt='screenshot of Game of Life running on the Mu computer' src='html/baremetal-life.png'>
@@ -94,7 +94,7 @@ Mu programs build natively either on Linux or on Windows using [WSL 2](https://d
 For Macs and other Unix-like systems, use the (much slower) emulator:
 
 ```sh
-$ ./translate_emulated ex2.mu  # ~2 mins to emit disk.img
+$ ./translate_emulated ex2.mu  # ~2 mins to emit code.img
 ```
 
 Mu programs can be written for two very different environments:
diff --git a/bochsrc b/bochsrc
index cd5f046d..7a74312e 100644
--- a/bochsrc
+++ b/bochsrc
@@ -9,7 +9,7 @@
 
 display_library: sdl2
 
-ata0-master: type=disk, path="disk.img", mode=flat, cylinders=20, heads=16, spt=63  # 10MB, 512 bytes per sector
+ata0-master: type=disk, path="code.img", mode=flat, cylinders=20, heads=16, spt=63  # 10MB, 512 bytes per sector
 boot: disk
 mouse: enabled=1, toggle=ctrl+f10
 log: -
diff --git a/bochsrc.2disks b/bochsrc.2disks
index c3e99ba9..a9550a9d 100644
--- a/bochsrc.2disks
+++ b/bochsrc.2disks
@@ -9,7 +9,7 @@
 
 display_library: sdl2
 
-ata0-master: type=disk, path="disk.img", mode=flat, cylinders=20, heads=16, spt=63  # 10MB, 512 bytes per sector
+ata0-master: type=disk, path="code.img", mode=flat, cylinders=20, heads=16, spt=63  # 10MB, 512 bytes per sector
 ata0-slave: type=disk, path="data.img", mode=flat, cylinders=20, heads=16, spt=63  # 10MB, 512 bytes per sector
 boot: disk
 mouse: enabled=1, toggle=ctrl+f10
diff --git a/boot0.hex b/boot0.hex
index e1ea98bd..4753451e 100644
--- a/boot0.hex
+++ b/boot0.hex
@@ -9,14 +9,14 @@
 # halts.
 #
 # To convert to a disk image, first prepare a realistically sized disk image:
-#   dd if=/dev/zero of=disk.img count=20160  # 512-byte sectors, so 10MB
+#   dd if=/dev/zero of=code.img count=20160  # 512-byte sectors, so 10MB
 # Now fill in sectors:
 #   bootstrap/bootstrap run hex < boot0.hex > boot.bin
-#   dd if=boot.bin of=disk.img conv=notrunc
+#   dd if=boot.bin of=code.img conv=notrunc
 # To run:
-#   qemu-system-i386 disk.img
+#   qemu-system-i386 code.img
 # Or:
-#   bochs -f bochsrc  # bochsrc loads disk.img
+#   bochs -f bochsrc  # bochsrc loads code.img
 #
 # Since we start out in 16-bit mode, we need instructions SubX doesn't
 # support.
diff --git a/ex10.mu b/ex10.mu
index ddea539a..858c4a25 100644
--- a/ex10.mu
+++ b/ex10.mu
@@ -1,11 +1,11 @@
 # Demo of mouse support.
 #
 # To build a disk image:
-#   ./translate ex10.mu            # emits disk.img
+#   ./translate ex10.mu            # emits code.img
 # To run:
-#   qemu-system-i386 disk.img
+#   qemu-system-i386 code.img
 # Or:
-#   bochs -f bochsrc               # bochsrc loads disk.img
+#   bochs -f bochsrc               # bochsrc loads code.img
 #
 # Expected output:
 #   Values between -256 and +255 as you move the mouse over the window.
diff --git a/ex2.mu b/ex2.mu
index f595510c..cd170aa7 100644
--- a/ex2.mu
+++ b/ex2.mu
@@ -1,11 +1,11 @@
 # Test out the video mode by filling in the screen with pixels.
 #
 # To build a disk image:
-#   ./translate ex2.mu             # emits disk.img
+#   ./translate ex2.mu             # emits code.img
 # To run:
-#   qemu-system-i386 disk.img
+#   qemu-system-i386 code.img
 # Or:
-#   bochs -f bochsrc               # bochsrc loads disk.img
+#   bochs -f bochsrc               # bochsrc loads code.img
 
 fn main screen: (addr screen), keyboard: (addr keyboard), data-disk: (addr disk) {
   var y/eax: int <- copy 0
diff --git a/ex3.mu b/ex3.mu
index bf4af1d9..b90af18b 100644
--- a/ex3.mu
+++ b/ex3.mu
@@ -2,11 +2,11 @@
 # and in raster order.
 #
 # To build a disk image:
-#   ./translate ex3.mu             # emits disk.img
+#   ./translate ex3.mu             # emits code.img
 # To run:
-#   qemu-system-i386 disk.img
+#   qemu-system-i386 code.img
 # Or:
-#   bochs -f bochsrc               # bochsrc loads disk.img
+#   bochs -f bochsrc               # bochsrc loads code.img
 #
 # Expected output: a new green pixel starting from the top left corner of the
 # screen every time you press a key (letter or digit)
diff --git a/ex4.mu b/ex4.mu
index caed4e5c..ec43c3e0 100644
--- a/ex4.mu
+++ b/ex4.mu
@@ -1,11 +1,11 @@
 # Draw a character using the built-in font (GNU unifont)
 #
 # To build a disk image:
-#   ./translate ex4.mu             # emits disk.img
+#   ./translate ex4.mu             # emits code.img
 # To run:
-#   qemu-system-i386 disk.img
+#   qemu-system-i386 code.img
 # Or:
-#   bochs -f bochsrc               # bochsrc loads disk.img
+#   bochs -f bochsrc               # bochsrc loads code.img
 #
 # Expected output: letter 'A' in green near the top-left corner of screen
 
diff --git a/ex5.mu b/ex5.mu
index 6f776d16..7a915ea7 100644
--- a/ex5.mu
+++ b/ex5.mu
@@ -2,11 +2,11 @@
 # Also demonstrates bounds-checking _before_ drawing.
 #
 # To build a disk image:
-#   ./translate ex5.mu             # emits disk.img
+#   ./translate ex5.mu             # emits code.img
 # To run:
-#   qemu-system-i386 disk.img
+#   qemu-system-i386 code.img
 # Or:
-#   bochs -f bochsrc               # bochsrc loads disk.img
+#   bochs -f bochsrc               # bochsrc loads code.img
 #
 # Expected output: text in green near the top-left corner of screen
 
diff --git a/ex6.mu b/ex6.mu
index 16aa34eb..cae98e36 100644
--- a/ex6.mu
+++ b/ex6.mu
@@ -1,11 +1,11 @@
 # Drawing ASCII text incrementally.
 #
 # To build a disk image:
-#   ./translate ex6.mu             # emits disk.img
+#   ./translate ex6.mu             # emits code.img
 # To run:
-#   qemu-system-i386 disk.img
+#   qemu-system-i386 code.img
 # Or:
-#   bochs -f bochsrc               # bochsrc loads disk.img
+#   bochs -f bochsrc               # bochsrc loads code.img
 #
 # Expected output: a box and text that doesn't overflow it
 
diff --git a/ex7.mu b/ex7.mu
index ea4bf6aa..4ddd754a 100644
--- a/ex7.mu
+++ b/ex7.mu
@@ -1,11 +1,11 @@
 # Cursor-based motions.
 #
 # To build a disk image:
-#   ./translate ex7.mu             # emits disk.img
+#   ./translate ex7.mu             # emits code.img
 # To run:
-#   qemu-system-i386 disk.img
+#   qemu-system-i386 code.img
 # Or:
-#   bochs -f bochsrc               # bochsrc loads disk.img
+#   bochs -f bochsrc               # bochsrc loads code.img
 #
 # Expected output: an interactive game a bit like "snakes". Try pressing h, j,
 # k, l.
diff --git a/ex8.mu b/ex8.mu
index 7e1f1b9c..64c0c24f 100644
--- a/ex8.mu
+++ b/ex8.mu
@@ -1,9 +1,9 @@
 # Demo of floating-point support.
 #
 # To build a disk image:
-#   ./translate ex8.mu             # emits disk.img
+#   ./translate ex8.mu             # emits code.img
 # To run:
-#   bochs -f bochsrc               # bochsrc loads disk.img
+#   bochs -f bochsrc               # bochsrc loads code.img
 # Set a breakpoint at 0x7c00 and start stepping.
 
 fn main screen: (addr screen), keyboard: (addr keyboard), data-disk: (addr disk) {
diff --git a/ex9.mu b/ex9.mu
index 1b2cae5e..e0767d9c 100644
--- a/ex9.mu
+++ b/ex9.mu
@@ -1,7 +1,7 @@
 # Demo of reading and writing to disk.
 #
 # Steps for trying it out:
-#   1. Translate this example into a disk image disk.img.
+#   1. Translate this example into a disk image code.img.
 #       ./translate ex9.mu
 #   2. Build a second disk image data.img containing some text.
 #       dd if=/dev/zero of=data.img count=20160
@@ -9,7 +9,7 @@
 #   3. Familiarize yourself with how the data disk looks within xxd:
 #       xxd data.img |head
 #   4. Run in an emulator, either Qemu or Bochs.
-#       qemu-system-i386 -hda disk.img -hdb data.img
+#       qemu-system-i386 -hda code.img -hdb data.img
 #       bochs -f bochsrc.2disks
 #   5. Exit the emulator.
 #   6. Notice that the data disk now contains the word count of the original text.
diff --git a/life.mu b/life.mu
index 829443b7..b3947434 100644
--- a/life.mu
+++ b/life.mu
@@ -3,7 +3,7 @@
 # To build:
 #   $ ./translate life.mu
 # To run:
-#   $ qemu-system-i386 disk.img
+#   $ qemu-system-i386 code.img
 
 fn state _grid: (addr array boolean), x: int, y: int -> _/eax: boolean {
   # clip at the edge
diff --git a/rpn.mu b/rpn.mu
index 8214e420..88053e7c 100644
--- a/rpn.mu
+++ b/rpn.mu
@@ -7,7 +7,7 @@
 #   $ ./translate rpn.mu
 #
 # Example session:
-#   $ qemu-system-i386 disk.img
+#   $ qemu-system-i386 code.img
 #   > 4
 #   4
 #   > 5 3 -
diff --git a/shell/README.md b/shell/README.md
index 76ecccea..d6072bf8 100644
--- a/shell/README.md
+++ b/shell/README.md
@@ -4,12 +4,12 @@ Currently runs a tiny subset of Lisp. Steps to run it from the top-level:
 
 1. Build it:
 ```sh
-$ ./translate shell/*.mu      # generates disk.img
+$ ./translate shell/*.mu      # generates code.img
 ```
 
 2. Run it:
 ```sh
-$ qemu-system-i386 disk.img
+$ qemu-system-i386 code.img
 ```
 or:
 ```
@@ -28,7 +28,7 @@ $ echo '(+ 1 1)' |dd of=data.img conv=notrunc
 
 Now run with both code and data disks:
 ```sh
-$ qemu-system-i386 -hda disk.img -hdb data.img
+$ qemu-system-i386 -hda code.img -hdb data.img
 ```
 or:
 ```
diff --git a/translate_subx b/translate_subx
index 08519d9f..4b730088 100755
--- a/translate_subx
+++ b/translate_subx
@@ -30,9 +30,9 @@ cat a.pack      |linux/survey_baremetal  > a.survey
 
 cat a.survey    |linux/hex               > a.bin
 
-# Create disk.img containing a.bin
-dd if=/dev/zero of=disk.img count=20160  # 512-byte sectors, so 10MB
-dd if=a.bin of=disk.img conv=notrunc
+# Create code.img containing a.bin
+dd if=/dev/zero of=code.img count=20160  # 512-byte sectors, so 10MB
+dd if=a.bin of=code.img conv=notrunc
 
 if [ `stat --printf="%s" a.bin` -ge 193536 ]  # 6 tracks * 63 sectors per track * 512 bytes per sector (keep this sync'd with boot.subx)
 then
diff --git a/translate_subx_emulated b/translate_subx_emulated
index d5120f48..7d35a988 100755
--- a/translate_subx_emulated
+++ b/translate_subx_emulated
@@ -25,9 +25,9 @@ cat a.pack        |linux/bootstrap/bootstrap run linux/survey_baremetal   > a.su
 
 cat a.survey      |linux/bootstrap/bootstrap run linux/hex                > a.bin
 
-# Create disk.img containing a.bin
-dd if=/dev/zero of=disk.img count=20160  # 512-byte sectors, so 10MB
-dd if=a.bin of=disk.img conv=notrunc
+# Create code.img containing a.bin
+dd if=/dev/zero of=code.img count=20160  # 512-byte sectors, so 10MB
+dd if=a.bin of=code.img conv=notrunc
 
 if [ `stat --printf="%s" a.bin` -ge 193536 ]  # 6 tracks * 63 sectors per track * 512 bytes per sector (keep this sync'd with boot.subx)
 then