(Created page with "== The Original Code == Consider the following C function: <c> extern int printf(const char *format, ...); int printlist(int lo, int hi) { int ix = lo; while (ix < hi) { ...") |
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| − | == The Original Code == | + | == The Original Code == |
| − | Consider the following C function: | + | Consider the following C function: |
<c> | <c> | ||
| Line 13: | Line 13: | ||
return ix; | return ix; | ||
} | } | ||
| − | </c> | + | </c> |
| − | directivas: text data rodata bss align label extrn globl const str char id byte double | + | '''directivas:''' text data rodata bss align label extrn globl const str char id byte double |
| − | acesso: addr addra addrv local loca locv load dload ldchr store dstore stchr alloc dup swap push pop int sp | + | '''acesso:''' addr addra addrv local loca locv load dload ldchr store dstore stchr alloc dup swap push pop int sp |
| − | |||
| − | + | '''aritmética/lógica:''' add dadd sub dsub mul dmul div ddiv mod neg gt ge lt le eq ne cmp | |
| − | + | '''bit a bit:''' rotl rotr shtl shtru shtrs and or not xor | |
| − | == Postfix Code == | + | '''funções/saltos:''' call ret start enter leave trash jmp jz jnz branch leap |
| + | |||
| + | == Postfix Code == | ||
The Postfix code for the above function is as follows: | The Postfix code for the above function is as follows: | ||
| Line 30: | Line 31: | ||
<asm> | <asm> | ||
| − | </asm> | + | </asm> |
| − | == Compiling and Running == | + | == Compiling and Running == |
| − | To compile the Postfix code directly, [[ | + | To compile the Postfix code directly, [[Pf2asm]] can be used: |
| − | * pf2asm printlist.pf | + | *pf2asm printlist.pf |
| − | * yasm -felf printlist.asm | + | *yasm -felf printlist.asm |
| − | [[ | + | [[Category:Compilers]] [[Category:Teaching]] |
| − | [[ | ||
Consider the following C function:
<c> extern int printf(const char *format, ...); int printlist(int lo, int hi) {
int ix = lo;
while (ix < hi) {
printf("%d\n", ix);
ix++;
}
return ix;
} </c>
directivas: text data rodata bss align label extrn globl const str char id byte double
acesso: addr addra addrv local loca locv load dload ldchr store dstore stchr alloc dup swap push pop int sp
aritmética/lógica: add dadd sub dsub mul dmul div ddiv mod neg gt ge lt le eq ne cmp
bit a bit: rotl rotr shtl shtru shtrs and or not xor
funções/saltos: call ret start enter leave trash jmp jz jnz branch leap
The Postfix code for the above function is as follows:
<asm>
</asm>
To compile the Postfix code directly, Pf2asm can be used: