NASM 0.91nasm-0.91

1 files changed, 82 insertions, 0 deletions

diff --git a/test/cofftest.asm b/test/cofftest.asm
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+++ b/test/cofftest.asm
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+; test source file for assembling to COFF
+; build with (under DJGPP, for example):
+;    nasm -f coff cofftest.asm
+;    gcc -o cofftest cofftest.c cofftest.o
+
+; This file should test the following:
+; [1] Define and export a global text-section symbol
+; [2] Define and export a global data-section symbol
+; [3] Define and export a global BSS-section symbol
+; [4] Define a non-global text-section symbol
+; [5] Define a non-global data-section symbol
+; [6] Define a non-global BSS-section symbol
+; [7] Define a COMMON symbol
+; [8] Define a NASM local label
+; [9] Reference a NASM local label
+; [10] Import an external symbol
+; [11] Make a PC-relative call to an external symbol
+; [12] Reference a text-section symbol in the text section
+; [13] Reference a data-section symbol in the text section
+; [14] Reference a BSS-section symbol in the text section
+; [15] Reference a text-section symbol in the data section
+; [16] Reference a data-section symbol in the data section
+; [17] Reference a BSS-section symbol in the data section
+
+[BITS 32]
+[GLOBAL _lrotate]		; [1]
+[GLOBAL _greet]			; [1]
+[GLOBAL _asmstr]		; [2]
+[GLOBAL _textptr]		; [2]
+[GLOBAL _selfptr]		; [2]
+[GLOBAL _integer]		; [3]
+[EXTERN _printf]		; [10]
+[COMMON _commvar 4]		; [7]
+
+[SECTION .text]
+
+; prototype: long lrotate(long x, int num);
+_lrotate:			; [1]
+	  push ebp
+	  mov ebp,esp
+	  mov eax,[ebp+8]
+	  mov ecx,[ebp+12]
+.label	  rol eax,1		; [4] [8]
+	  loop .label		; [9] [12]
+	  mov esp,ebp
+	  pop ebp
+	  ret
+
+; prototype: void greet(void);
+_greet	  mov eax,[_integer]	; [14]
+	  inc eax
+	  mov [localint],eax	; [14]
+	  push dword [_commvar]
+	  mov eax,[localptr]	; [13]
+	  push dword [eax]
+	  push dword [_integer]	; [1] [14]
+	  push dword _printfstr	; [13]
+	  call _printf		; [11]
+	  add esp,16
+	  ret
+
+[SECTION .data]
+
+; a string
+_asmstr	  db 'hello, world', 0	; [2]
+
+; a string for Printf
+_printfstr db "integer==%d, localint==%d, commvar=%d"
+	  db 10, 0
+
+; some pointers
+localptr  dd localint		; [5] [17]
+_textptr  dd _greet		; [15]
+_selfptr  dd _selfptr		; [16]
+
+[SECTION .bss]
+
+; an integer
+_integer  resd 1		; [3]
+
+; a local integer
+localint  resd 1		; [6]