diff --git a/pages/e00-02 b/pages/e00-02
index 44c9bac..f134675 100644
--- a/pages/e00-02
+++ b/pages/e00-02
@@ -42,7 +42,7 @@
 	.endif
 
 	jsr    r0,copyz; systm; ecore / clear locations systm to ecore
-	mov    $s,chrgt+2,clockp / intlalize clockp
+	mov    $s.chrgt+2,clockp / intialize clockp
 / allocate tty buffers; see H.0 for description
 	mov    $buffer,r0
 	mov    $tty+6,r1
diff --git a/pages/e00-03 b/pages/e00-03
index 5af9bc2..d3a2c96 100644
--- a/pages/e00-03
+++ b/pages/e00-03
@@ -45,7 +45,7 @@
 
 / set up drum swap addresses; see H.0 for description
 
-	mov    $1024.,-64.,r1 / highest drum address; high 64 blks allocated
+	mov    $1024.-64.,r1 / highest drum address; high 64 blks allocated
                               / to UNIX
 	mov    $p.dska,r2 / p.dska contains dis addresses for processes
 1 :
diff --git a/tools/rebuild b/tools/rebuild
new file mode 100755
index 0000000..5b02378
--- /dev/null
+++ b/tools/rebuild
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+m() { cat pages/$2 > rebuilt/$1; }
+
+test -d rebuilt || mkdir rebuilt
+
+m u0 e00-*
+#m u1 e01-*
+#m u2 e02-*
+#m u3 e03-*
+#m u4 e04-*
+#m u5 e05-*
+#m u6 e06-*
+#m u7 e07-*
+#m u8 e08-*
+#m u9 e09-*
+m ux e10-*
+#m sh e11-*
+#m ini e12-*