diff --git a/projects/examples/exercises/fib.tal b/projects/examples/exercises/fib.tal
index 9b5cb99..fc35d37 100644
--- a/projects/examples/exercises/fib.tal
+++ b/projects/examples/exercises/fib.tal
@@ -6,14 +6,15 @@
 
 	#0000 INC2k ADD2k
 	&loop
-		( print ) DUP2 ,print JSR
-		( linebreak ) #0a18 DEO
+		DUP2 ,print-hex JSR #0a18 DEO
 		ADD2k LTH2k ,&loop JCN
-	( halt ) #010f DEO
+
+	( halt )
+	#010f DEO
 
 BRK
 
-@print ( short* -- )
+@print-hex ( short* -- )
 
 	SWP ,&byte JSR
 	&byte ( byte -- ) DUP #04 SFT ,&char JSR
diff --git a/projects/examples/exercises/fizzbuzz.tal b/projects/examples/exercises/fizzbuzz.tal
index d1f5c59..96a7d34 100644
--- a/projects/examples/exercises/fizzbuzz.tal
+++ b/projects/examples/exercises/fizzbuzz.tal
@@ -8,20 +8,35 @@
 
 	#6400
 	&loop
-		( dec ) DUPk ,print-dec JSR
-		( space ) #2018 DEO
+		( integer )
+		DUPk ,print-dec JSR #2018 DEO
+		( fizzbuzz )
 		DUP #03 ,mod JSR ,&no3 JCN ;s/fizz ,print-str JSR &no3
 		DUP #05 ,mod JSR ,&no5 JCN ;s/buzz ,print-str JSR &no5
-		( linebreak ) #0a18 DEO
+		#0a18 DEO
 		INC GTHk ,&loop JCN
 	POP2
-	( halt ) #010f DEO
+	( halt )
+	#010f DEO
 
 BRK
 
-@mod ( a b -- c ) DIVk MUL SUB JMP2r
-@print-dec ( num -- ) #0a DIV ,print-num JSR #0a ,mod JSR
-@print-num ( num -- ) #30 ADD #18 DEO JMP2r
-@print-str ( addr* -- ) &loop LDAk #18 DEO INC2 LDAk ,&loop JCN POP2 JMP2r
+@mod ( a b -- c )
+	DIVk MUL SUB
+JMP2r
+
+@print-dec ( num -- )
+	#0a DIV ,&emit JSR
+	#0a ,mod JSR
+	&emit
+	#30 ADD #18 DEO
+JMP2r
+
+@print-str ( addr* -- )
+	&while
+		LDAk #18 DEO
+		INC2 LDAk ,&while JCN
+	POP2
+JMP2r
 
 @s &fizz "Fizz $1 &buzz "Buzz $1
diff --git a/projects/examples/exercises/primes.tal b/projects/examples/exercises/primes.tal
index 3b9a7d9..7c95e24 100644
--- a/projects/examples/exercises/primes.tal
+++ b/projects/examples/exercises/primes.tal
@@ -18,20 +18,17 @@ BRK
 
 @is-prime ( number* -- flag )
 
-	DUP2 #0001 EQU2 ,&fail JCN
-	STH2k
-	( range ) #01 SFT2 #0002
+	DUP2 ,&t STR2
+	( range ) #01 SFT2 #0002 LTH2k ,&fail JCN
 	&loop
-		STH2kr OVR2 ( mod2 ) [ DIV2k MUL2 SUB2 ] ORA ,&continue JCN
-			POP2 POP2
-			POP2r #00 JMP2r
-			&continue
+		[ LIT2 &t $2 ] OVR2
+			( mod2 ) DIV2k MUL2 SUB2
+			ORA #00 EQU ,&fail JCN
 		INC2 GTH2k ,&loop JCN
-	POP2 POP2
-	POP2r #01
+	POP2 POP2 #01
 
 JMP2r
-	&fail POP2 #00 JMP2r
+	&fail POP2 POP2 #00 JMP2r
 
 @print ( short* -- )