110 lines
1.3 KiB
ArmAsm
110 lines
1.3 KiB
ArmAsm
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/* x86 Assembly (AT&T style) version of a Prime Number Finder
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haplo@mindstab.net */
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.data
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numstr: .asciz "%d\n"
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max = 100000
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scanformat : .asciz "%d"
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int = 0
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.text
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.extern printf
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.extern scanf
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.extern exit
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.global main
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printnum:
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pushl %ebx
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pushl $numstr
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call printf
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pop %eax
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pop %ecx
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ret
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main:
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# scanf code from http://www.linuxgazette.com/issue71/joshi.html
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pushl %ebp # save EBP on stack
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movl %esp,%ebp # EBP = ESP
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subl $4,%esp # create space for x on the stack
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leal -4(%ebp),%eax
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pushl %eax
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pushl $scanformat
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call scanf
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addl $12, %esp
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movl -4(%ebp),%eax
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movl %eax, -12(%ebp)
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# END scanf code
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# The rest is all my code
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pushl %eax
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movl $3, %ebx
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movl $2, %ecx
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movl $4, %edx
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toploop:
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popl %eax
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cmp %eax, %ebx
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jg end
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pushl %eax
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pushl %edx
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pushl %ecx
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pushl %ebx
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movl $3, %ecx
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checkloop:
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popl %ebx
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popl %edx
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cmp %edx, %ecx
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pushl %edx
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pushl %ebx
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jge showprime
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movl $0, %edx
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movl %ebx, %eax
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divl %ecx
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addl $2, %ecx
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cmp $0, %edx
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je doneloop
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jmp checkloop
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showprime:
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call printnum
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doneloop:
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popl %ebx
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popl %ecx
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popl %edx
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addl $2, %ebx
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cmp %edx, %ebx
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jl toploop
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addl $1, %ecx
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movl %ecx, %eax
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mull %eax
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movl %eax, %edx
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jmp toploop
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end:
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pushl $0
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call exit
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