aboutsummaryrefslogtreecommitdiffstats
path: root/meson/test cases/nasm/1 configure file/hello.asm
diff options
context:
space:
mode:
authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /meson/test cases/nasm/1 configure file/hello.asm
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'meson/test cases/nasm/1 configure file/hello.asm')
-rw-r--r--meson/test cases/nasm/1 configure file/hello.asm27
1 files changed, 27 insertions, 0 deletions
diff --git a/meson/test cases/nasm/1 configure file/hello.asm b/meson/test cases/nasm/1 configure file/hello.asm
new file mode 100644
index 000000000..bf4bf9688
--- /dev/null
+++ b/meson/test cases/nasm/1 configure file/hello.asm
@@ -0,0 +1,27 @@
+; hello.asm a first program for nasm for Linux, Intel, gcc
+;
+; assemble: nasm -f elf -l hello.lst hello.asm
+; link: gcc -o hello hello.o
+; run: hello
+; output is: Hello World
+
+%include "config.asm"
+
+ SECTION .data ; data section
+msg: db "Hello World",10 ; the string to print, 10=cr
+len: equ $-msg ; "$" means "here"
+ ; len is a value, not an address
+
+ SECTION .text ; code section
+ global main ; make label available to linker
+main: ; standard gcc entry point
+
+ mov edx,len ; arg3, length of string to print
+ mov ecx,msg ; arg2, pointer to string
+ mov ebx,1 ; arg1, where to write, screen
+ mov eax,4 ; write sysout command to int 80 hex
+ int 0x80 ; interrupt 80 hex, call kernel
+
+ mov ebx,HELLO ; exit code, 0=normal
+ mov eax,1 ; exit command to kernel
+ int 0x80 ; interrupt 80 hex, call kernel