7 part

README.md

@@ -6,9 +6,10 @@ Learning assembly for linux-x64
 Examples
 ==============
 
-  * hello - hello world;
-  * sum   - sum of two numbers;
-  * stack - sum of command line arguments;
-  * reverse - reverse string.
+  * hello - hello world [Say hello to x86_64 Assembly part 1](http://0xax.blogspot.com/2014/08/say-hello-to-x64-assembly-part-1.html);
+  * sum   - sum of two numbers [Say hello to x86_64 Assembly part 2](http://0xax.blogspot.com/2014/09/say-hello-to-x64-assembly-part-2.html);
+  * stack - sum of command line arguments [Say hello to x86_64 Assembly part 3](http://0xax.blogspot.com/2014/09/say-hello-to-x64-assembly-part-3.html);
+  * reverse - reverse string [Say hello to x86_64 Assembly part 4](http://0xax.blogspot.com/2014/11/say-hello-to-x64-assembly-part-4.html);
+  * casm    - c and assembly interaction [Say hello to x86_64 Assembly part 6](http://0xax.blogspot.com/2014/11/say-hello-to-x64-assembly-part-4.html).
 
 [@0xAX](https://twitter.com/0xAX)

casm/Readme.md

@@ -0,0 +1,11 @@
+This is "C with assermbly interaction" application.
+
+Build it with: `make`
+
+  * casm1 - call C function from asm
+  * casm2 - gcc inline assembly
+  * casm3 - call asm function from C
+
+More details at - [Say hello to x86_64 Assembly part 6](http://0xax.blogspot.com/2014/11/say-hello-to-x64-assembly-part-4.html)
+
+[@0xAX](http://twitter.com/0xAX)

casm/Readme.md~

@@ -0,0 +1,7 @@
+This is "C with assermbly interaction" application.
+
+Build it with: `make`
+
+More details at - [Say hello to x86_64 Assembly part 6](http://0xax.blogspot.com/2014/11/say-hello-to-x64-assembly-part-4.html)
+
+[@0xAX](http://twitter.com/0xAX)

casm/casm1/Makefile

@@ -0,0 +1,8 @@
+buildAsmc:
+	gcc  -c casm.c -o c.o
+	nasm -f elf64 casm.asm -o casm.o
+	ld   -dynamic-linker /lib64/ld-linux-x86-64.so.2 -lc casm.o c.o -o casm
+
+clean:
+	rm -rf *.o
+	rm -rf casm

casm/casm1/Makefile~

@@ -0,0 +1,8 @@
+buildAsmc:
+	gcc  -c casm.c -o c.o
+	nasm -f elf64 casm.asm -o casm.o
+	ld   -dynamic-linker /lib64/ld-linux-x86-64.so.2 -lc casm.o c.o -o casm
+
+clean:
+	rm -rf *.o
+	rm -rf casm

casm/casm1/casm.asm

@@ -0,0 +1,13 @@
+global _start
+
+extern print
+
+section .text
+
+_start:
+		call print
+
+		;; exit
+		mov rax, 60
+		mov rdi, 0
+		syscall

casm/casm1/casm.c

@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+extern int print();
+
+int print() {
+	printf("Hello World\n");
+	return 0;
+}

casm/casm2/Makefile

@@ -0,0 +1,2 @@
+build:
+	gcc casm.c -o casm 

casm/casm2/Makefile~

@@ -0,0 +1,2 @@
+build:
+gcc casm.c -o casm 

casm/casm2/casm.c

@@ -0,0 +1,17 @@
+#include <string.h>
+
+int main() {
+	char* str = "Hello World\n";
+	long len = strlen(str);
+	int ret = 0;
+
+	__asm__("movq $1, %%rax \n\t"
+		"movq $1, %%rdi \n\t"
+		"movq %1, %%rsi \n\t"
+		"movl %2, %%edx \n\t"
+		"syscall"
+		: "=g"(ret)
+		: "g"(str), "g" (len));
+
+	return 0;
+}

casm/casm2/casm.c~

@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+extern int print();
+
+int print() {
+	printf("Hello World\n");
+	return 0;
+}

casm/casm3/Makefile

@@ -0,0 +1,3 @@
+build:
+	nasm -f elf64 -o casm.o casm.asm
+	gcc casm.o casm.c -o casm 

casm/casm3/Makefile~

@@ -0,0 +1,3 @@
+build:
+nasm -f elf64 -o casm.o casm.asm
+gcc casm.o casm.c -o casm 

casm/casm3/casm.asm

@@ -0,0 +1,15 @@
+global printHelloWorld
+
+section .text
+printHelloWorld:
+		;; 1 arg
+		mov r10, rdi
+		;; 2 arg
+		mov r11, rsi
+		;; call write syscall
+		mov rax, 1
+		mov rdi, 1
+		mov rsi, r10
+		mov rdx, r11
+		syscall
+		ret

casm/casm3/casm.asm~

@@ -0,0 +1,13 @@
+global _start
+
+extern print
+
+section .text
+
+_start:
+		call print
+
+		;; exit
+		mov rax, 60
+		mov rdi, 0
+		syscall

casm/casm3/casm.c

@@ -0,0 +1,8 @@
+#include <string.h>
+
+int main() {
+	char* str = "Hello World\n";
+	int len = strlen(str);
+	printHelloWorld(str, len);
+	return 0;
+}

casm/casm3/casm.c~

@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+extern int print();
+
+int print() {
+	printf("Hello World\n");
+	return 0;
+}