12 static char *regs64[] = {"rax", "r10", "r11", "r9"};
13 static char *regs8l[] = {"al", "r10b", "r11b", "r9b"};
16 static char *akt_func_name = (char*) NULL;
17 static char need_stack = 0;
20 void func_header(char *s, int vars, int parms, int call)
22 printf("\t.globl %1$s\n\t.type %1$s, @function\n%1$s:\n", s);
23 printf("\t//vars-> %i, parms-> %i, call(bool)-> %i\n", vars, parms, call);
27 need_stack = (vars || parms) && call;
29 need_stack = vars || (parms && call);
33 /* 2 * 7 fuer paramterregs reservieren + 2 fuer rax und r10 */
34 printf("\tenter $%d, $0\n", 8*(2*7 + 2));
37 printf("\t//vars pushen\n"); /* koennten parameter enthalten von anderen fkts... */
38 for(j = VARBEGIN; j > VARBEGIN - vars; j--) {
39 printf("\tpushq %%%s\n", param_reg(j));
44 char *get_func_name(void)
49 void func_footer(void)
54 for(j = VARBEGIN+1 - gvars; j < VARBEGIN+1; j++) {
55 printf("\tpopq %%%s\n", param_reg(j));
59 printf("\tret\n\n\n");
62 void move(char *src, char *dst)
64 if(src == (char*) NULL) return;
65 if(strcmp(src,dst) != 0) {
66 printf("\tmovq %%%s, %%%s\n", src, dst);
70 void moveimm(long imm, char *dst)
73 sprintf(buf, "$%d", imm);
74 printf("\tmovq %s, %%%s\n", buf, dst);
77 char *next_reg(char *s, int params)
80 if (s != (char*) NULL) {
81 while(strcmp(s, regs64[i]) != 0) {
87 fprintf(stderr, "next_reg(): %s (bei %i parameter)\n", regs64[i], params);
92 char *reg_64to8l(char *s)
95 if (s != (char*) NULL) {
96 while(strcmp(s, regs64[i]) != 0) {
101 fprintf(stderr, "reg_64to8l(): sollte nicht passieren\n");
105 char *param_reg(int num)
107 char *regs[] = {"rdi", "rsi", "rdx", "rcx", "r8", "r9", "r11"};