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Diffstat (limited to 'test/aouttest.asm')
-rw-r--r-- | test/aouttest.asm | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/test/aouttest.asm b/test/aouttest.asm new file mode 100644 index 0000000..c52f112 --- /dev/null +++ b/test/aouttest.asm @@ -0,0 +1,83 @@ +; test source file for assembling to a.out +; build with: +; nasm -f aout aouttest.asm +; gcc -o aouttest aouttest.c aouttest.o +; (assuming your gcc is a.out) + +; 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] |