Hello world in FASM

diff --git a/.gitignore b/.gitignore
new file mode 100644 (file)
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--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/main

diff --git a/Makefile b/Makefile
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--- /dev/null
+++ b/Makefile
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+main: main.asm
+       fasm $< $@
+
+.PHONY: clean
+clean:
+       rm -f main

diff --git a/main.asm b/main.asm
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+++ b/main.asm
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+format ELF64 executable
+
+struc with_length string& {
+    . db string
+    .length = $ - .
+}
+
+macro write_stdout string_label {
+    mov rax, 1
+    mov rdi, 1
+    mov rsi, string_label
+    mov rdx, string_label#.length
+    syscall
+}
+
+segment readable executable
+
+start:
+    write_stdout message
+
+    jmp $
+
+segment readable
+
+message with_length 'Hello, world!',$A

diff --git a/notes b/notes
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+++ b/notes
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+FASM:
+- https://flatassembler.net/docs.php?article=fasmg (Introduction)
+- https://flatassembler.net/docs.php?article=fasmg_manual (Manual)
+- https://flatassembler.net/docs.php?article=manual (Other manual)
+
+JONESFORTH:
+- https://github.com/nornagon/jonesforth/blob/master/jonesforth.S