asm/get_sp.asm
author Markus Bröker <mbroeker@largo.dyndns.tv>
Sat, 13 Dec 2008 17:57:58 +0100
changeset 6 c3dc3eb3b541
parent 5 d752cbe8208e
child 9 c3fecc82ade6
permissions -rw-r--r--
a small libtool demo added to the demo distribution committer: Markus Bröker <mbroeker@largo.homelinux.org>
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;;
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;;  $ID$
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;;  $Source: /development/c/asm/get_sp.asm,v $
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;;	
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;;
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%include "asm/tools.inc"
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segment .data
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label1  	db  			"NASM Powered...", 10, 0
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reg_format	db				"EAX=%08x EBX=%08x ECX=%08x EDX=%08x", 10, 0
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st_format	db				"EBP=%08x ESP=%08x ESI=%08x EDI=%08x", 10, 10, 0
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trace_fmt	db				"[EBP-20] = %08x", 10, \
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							"[EBP-16] = %08x", 10, "[EBP-12] = %08x", 10, \
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							"[EBP- 8] = %08x", 10, "[EBP- 4] = %08x", 10, \
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							"[EBP+ 0] = %08x", 10, "[EBP+ 4] = %08x", 10, \
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							"[EBP+ 8] = %08x", 10, "[EBP+12] = %08x", 10, \
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							"[EBP+16] = %08x", 10, "[EBP+20] = %08x", 10, 10, 0
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segment .bss
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	savexp resd 1			;; uninitialized dword value
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							;; currently not used
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segment .text
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	global get_sp
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get_sp:
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	enter 4,0				;; push ebp		;; Save Base-Pointer
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							;; mov ebp, esp ;; Copy Stackpointer for !!local usage!!
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							;; sub esp, 4   ;; Make room for 1 DWORD
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	mov [ebp-4], esp		;; Store result in !! local variable !!
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	push DWORD label1
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	call printf
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	add esp, byte 4			;; remove label1 from stack
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	call stack_trace
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	call reg_info
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	call stack_info
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	call reg_info
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	call stack_info
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	call stack_trace
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	;; clean up
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	mov eax, [ebp-4]		;; return local var
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	leave 					;; mov esp, ebp pop ebp
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	ret						;; return eax