24 and 25

2 files changed, 17 insertions, 4 deletions

diff --git a/3/6_control/24_while_loop.c b/3/6_control/24_while_loop.c
index a3367fc..18a6c70 100644
--- a/3/6_control/24_while_loop.c
+++ b/3/6_control/24_while_loop.c
@@ -11,10 +11,10 @@
 
 short loop_while(short a, short b)
 {
-    short result = ;
-    while () {
-        result = ;
-        a = ;
+    short result = 0;
+    while (a > b) {
+        result = result + a*b;
+        a = a - 1;
     }
     return result;
 }
diff --git a/3/6_control/25_while_guard.c b/3/6_control/25_while_guard.c
new file mode 100644
index 0000000..ad33917
--- /dev/null
+++ b/3/6_control/25_while_guard.c
@@ -0,0 +1,13 @@
+//  %rdi <- a
+//  %rsi <- b
+//  loop:
+//    testq %rsi, %rsi
+//    jle   .L8
+long loop_while2(long a, long b) {
+    long result = b;
+    while (b > 0) {
+        result = result * a;
+        b = b - a;
+    }
+    return result;
+}