ppc: gesamt (stack und so) geht jetzt auch

[uebersetzerbau-ss10.git] / gesamt_ppc / chelper.c

diff --git a/gesamt_ppc/chelper.c b/gesamt_ppc/chelper.c
index 84ef5bac03d3f6215bc5a3758a2782aec2163058..c8746eb3e941361754d3c73bc14274aba89d6c25 100644 (file)
--- a/gesamt_ppc/chelper.c
+++ b/gesamt_ppc/chelper.c
@@ -23,7 +23,14 @@ void func_header(char *s, int vars, int parms, int call)
 
        need_stack = (vars || parms) && call;
        if(need_stack) {
+#if 0
                printf("\tenter $%d, $0\n", 8*(vars + parms + 2 /* fuer rax und r10 */));
+#else
+               /* save the link register */
+               printf("\tmflr 0; stw 0,8(1)\n");
+               /* create the stack */
+               printf("\tstwu 1, -64(1)\n");
+#endif
        }
 }
 
@@ -34,8 +41,16 @@ char *get_func_name(void)
 
 void func_footer(void)
 {
-       if(need_stack)
+       if(need_stack) {
+#if 0
                printf("\tleave\n");
+#else
+               /* remove stack frame */
+               printf("\taddi 1,1,64\n");
+               /* restore link register */
+               printf("\tlwz 0,8(1); mtlr 0\n");
+#endif
+       }
        printf("\tblr\n\n\n");
 }
 
@@ -43,14 +58,14 @@ void move(char *src, char *dst)
 {
        if(src == (char*) NULL) return;
        if(strcmp(src,dst) != 0) {
-               printf("\tmr %s, %s\n", dst, src);
+               printf("\tmr %s,%s\n", dst, src);
        }
 }
 
 void moveimm(long imm, char *dst)
 {
        /* TODO: 32 bits... */
-       printf("\taddi %s,0,%d\n", dst, imm);
+       printf("\tli %s,%d\n", dst, imm);
 }
 
 char *next_reg(char *s, int params)