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POPorting Assembly to C/C++?
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copied!<p>I would like to have <a href="http://www.pouet.net/prod.php?which=7051" rel="nofollow noreferrer">this</a> x86 ASM code ported to C or C++, as I don't understand ASM =)</p> <p>Searching Google it seams <a href="http://www.microapl.co.uk/asm2c/" rel="nofollow noreferrer">Relogix</a> and IDA Pro can do it. But I don't suppose they are cheap, given I only have this one source.</p> <p>Understanding the math or the algorithm how it works would be just as good, as I am going to use OpenGL anyway.</p> <p>Are there other methods?</p> <pre><code>; ; a n d r o m e d a ; ; a 256b demo ; by insomniac/neon ; code SEGMENT ASSUME CS:code, DS:code p386 LOCALS ORG 100h max = 4096 maxZ = 5000 b EQU byte ptr Start: lea di,vars mov ch,60 rep stosw mov al,13h int 10h p al: mov al,cl mov dx,3c8h out dx,al inc dx cmp al,64 jb b64_1 mov al,63 b64_1: out dx,al mov al,cl shr al,1 out dx,al out dx,al loop pal .main: push 8000h pop ES mov si,max .loop: mov ax,Z[si] cmp ax,maxZ-(maxZ/4) jg NewStar cmp ax,2 jg Zok NewStar: mov ax,bp mov X[si],ax imul ax,8405h inc ax mov bp,ax shr ax,6 sub ax,400 mov Y[si],ax mov Z[si],maxZ-(maxZ/2) Zok: mov ax,X[si] movsx dx,ah shl ax,8 mov cx,Z[si] idiv cx add ax,320/2 cmp ax,320-1 jge NewStar cmp ax,1 jle NewStar mov di,ax mov ax,Y[si] movsx dx,ah shl ax,8 idiv cx add ax,200/2 imul ax,320 add di,ax mov al,127 stosb mov ax,X[si] cmp ax,00 jge .add neg ax shr ax,6 add Y[si],ax jmp .notadd .add: shr ax,6 sub Y[si],ax .notadd: add Z[si],ax mov ax,Y[si] sar ax,3 add X[si],ax .NextStar: dec si dec si jnz .loop push DS push ES pop DS xor di,di xor cx,cx .blur: movzx ax,DS:[di] movzx dx,DS:[di+1] add ax,dx mov dl,DS:[di-320] add ax,dx mov dl,DS:[di+321] add ax,dx shr ax,2 cmp al,0 je .skip dec ax .skip: stosb loop .blur push 0a000h pop ES mov si,di mov ch,81h rep movsw pop DS mov dx,3dah .vrt: in al,dx test al,8 jz .vrt in al,60h dec ax jnz .main endprog: mov al,3 int 10h ret LABEL vars X dw max DUP (?) Y dw max DUP (?) Z dw max DUP (?) code ENDS END Start </code></pre>

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