test inline assembly

.gitignore

@@ -17,3 +17,5 @@ bloom
 wo-lernen
 lua-foo
 binsearch
+test-inline-assembly
+test-inline-assembly.s

Makefile

@@ -1,8 +1,8 @@
 CFLAGS=-std=c99 -Wall -g -O2
 INDENTOPTS=-kr --no-tabs --braces-on-func-def-line --indent-level2
 
-TARGETS=approximate-pi linked-list mandelbrot threads circular-buffer structs ncurses-pong bit-fuckery bit-fuckery2 checkcheck multibrot bloom wo-lernen lua-foo binsearch
+TARGETS=approximate-pi linked-list mandelbrot threads circular-buffer structs ncurses-pong bit-fuckery bit-fuckery2 checkcheck multibrot bloom wo-lernen lua-foo binsearch test-inline-assembly
-EXTRAS=mandelbrot.bmp multibrot.png
+EXTRAS=mandelbrot.bmp multibrot.png test-inline-assembly.s
 
 .PHONY: all
 all: $(TARGETS) $(EXTRAS)
@@ -34,3 +34,9 @@ multibrot.png: multibrot
 
 lua-foo: lua-foo.c
 	$(CC) $(CFLAGS) -o $@ $< -llua -lm
+
+test-inline-assembly: test-inline-assembly.c
+	$(CC) -Wall -o $@ $<
+
+test-inline-assembly.s: test-inline-assembly.c
+	$(CC) -Wall -S -o $@ $<

test-inline-assembly.c

@@ -0,0 +1,13 @@
+#include <stdio.h>
+
+int main() {
+  int i = 0xffff;
+
+  asm("movl $23, %0"
+      : "=r" (i) /* output */
+      /* : no input */
+      /* : no clobbered */ 
+     );
+
+  printf("i = %d\n", i);
+}