added 32 bit asm version

asm/Makefile

@@ -0,0 +1,6 @@
+
+all: fib32
+
+fib32: fib32.asm
+	nasm -f elf32 fib32.asm
+	gcc -m32 -no-pie fib32.o -o $@

asm/fib32.asm

@@ -0,0 +1,57 @@
+section .text
+
+global main
+extern printf
+
+fib:
+	pop	ebx
+	pop	ecx
+	pop	eax
+	pop	edx
+	sub	esp, 12
+	push	ebx
+
+	cmp	ecx, 0
+	je	fibend
+		
+fibloop:
+	mov	ebx, eax
+	add	ebx, edx
+
+	push	ecx ; ecx is not callee-saved in the linux abi
+
+	push	ebx
+	push	edx
+	push	eax
+	push	format
+
+	call	printf
+
+	add	esp, 8
+	pop	eax
+	pop	edx
+
+	pop	ecx
+
+	dec	ecx
+	jnz	fibloop
+fibend:
+	ret
+
+main:
+	mov	ebx, 1
+	push	ebx
+	push	ebx
+	mov	ebx, 5
+	push	ebx
+
+	call	fib
+
+	add	esp, 12
+
+	mov	eax, 0 ; return 0
+	ret
+
+section .data
+format:
+	db '%d + %d = %d', 10, 0