ppc: gesamt (stack und so) geht jetzt auch

TODO: lewurm_08.0 @ gesamt

diff --git a/gesamt_ppc/chelper.c b/gesamt_ppc/chelper.c
index 94d3f9179b607f7d6b3823172b24573faad18f3e..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");
 }
 

diff --git a/gesamt_ppc/code.bfe b/gesamt_ppc/code.bfe
index dad8b92dd7afce6cc77941f1cb8c0d65fe1a0ced..ea5636519ca218fc08360cc97de80dd58ecac3c1 100644 (file)
--- a/gesamt_ppc/code.bfe
+++ b/gesamt_ppc/code.bfe
@@ -55,9 +55,9 @@ void gen_id_eno(struct treenode *bnode)
        KIDKIDREG2PARM(1,0);
        KIDKIDREG2PARM(1,1);
        KIDREG2PARM(0);
-       move(KID_REG(0), BN_REG);
-       printf("\tsub %%%s, %%%s\n", KIDKID_REG(1,1), BN_REG);
-       printf("\tsub %%%s, %%%s\n", KIDKID_REG(1,0), BN_REG);
+
+       printf("\tsub %s,%s,%s\n", BN_REG, KID_REG(0), KIDKID_REG(1,1));
+       printf("\tsub %s,%s,%s\n", BN_REG, BN_REG, KIDKID_REG(1,0));
 }
 
 void gen_e_field(struct treenode *bnode, char *instr)
@@ -126,7 +126,7 @@ void gen_imm_eno(struct treenode *bnode, char *instr)
                        printf("\tmulli %s,%s,%d\n", BN_REG, KID_REG(1), KID_VAL(0));
                }
        } else { /* addq */
-               printf("\taddq $%d, %%%s\n", KID_VAL(0), BN_REG);
+               printf("\taddi %s,%s,%d\n", BN_REG, BN_REG, KID_VAL(0));
        }
 }
 
@@ -193,7 +193,7 @@ void gen_subspecial(struct treenode *bnode, short e)
 
        if(e) {
                if(KIDKID_VAL(1,0) != 0) {
-                       printf("\tsubf $%d, %%%s\n", KIDKID_VAL(1,0), BN_REG);
+                       printf("\tsubi %s,%s,%d\n", BN_REG, BN_REG, KIDKID_VAL(1,0));
                }
        } else {
                printf("\tsubf %%%s, %%%s\n", KIDKID_REG(1,0), BN_REG);
@@ -208,7 +208,7 @@ void assign_var(struct treenode *bnode)
        KIDREG2PARM(1);
        if (strcmp(bnode->kids[0]->kids[0]->name, bnode->kids[1]->name) != 0) {
                KIDKIDREG2PARM(0,0);
-               printf("\tmov %%%s, %%%s\n", KIDKID_REG(0,0), KID_REG(1));
+               printf("\tmr %s,%s\n", KID_REG(1), KIDKID_REG(0,0));
        } /*else:  x := x - 1 geht in einem befehl */
        printf("\tsubi %s,%s,%d\n", KID_REG(1), KID_REG(1), KIDKID_VAL(0,1));
 }
@@ -218,38 +218,49 @@ void make_call(struct treenode *bnode)
        int j;
        printf("\t#params pushen\n");
        for(j = 0; j < bnode->soffset; j++) {
-               printf("\txchg %%%s, %d(%%rsp)\n", param_reg(j), j*8);
+               printf("\tlwz 20,%d(1)\n", j*4);
+               printf("\tstw %s,%d(1)\n", param_reg(j), j*4);
+               printf("\tmr %s,20\n", param_reg(j));
        }
        printf("\t#vars pushen\n");
        for(j = VARBEGIN; j > VARBEGIN - bnode->vars; j--) {
-               printf("\tpushq %%%s\n", param_reg(j));
+               printf("\tstw %s,%d(1)\n", param_reg(j), j*4);
        }
 
        /* TODO: schoener machen... */
-       if(strcmp(BN_REG, "rax")!=0) {
+       if(strcmp(BN_REG, "14")!=0) {
                printf("\t#tmp register pushen\n");
-               printf("\tpushq %%rax\n");
-               if(strcmp(BN_REG, "r10")!=0) {
-                       printf("\tpushq %%r10\n");
+               printf("\tstw 14,52(1)\n");
+               if(strcmp(BN_REG, "15")!=0) {
+                       printf("\tstw 15,56(1)\n");
+                       if(strcmp(BN_REG, "16")!=0) {
+                               printf("\tstw 16,60(1)\n");
+                       }
                }
        }
-       printf("\tcall %s\n", bnode->name);
-       if(strcmp(BN_REG, "rax")!=0) {
-               move("rax", BN_REG);
-               if(strcmp(BN_REG, "r10")!=0) {
-                       printf("\tpopq %%r10\n");
+
+       printf("\tbl %s\n", bnode->name);
+       move("3", BN_REG);
+
+       if(strcmp(BN_REG, "14")!=0) {
+               printf("\t#tmp register poppen\n");
+               if(strcmp(BN_REG, "15")!=0) {
+                       if(strcmp(BN_REG, "16")!=0) {
+                               printf("\tlwz 16,60(1)\n");
+                       }
+                       printf("\tlwz 15,56(1)\n");
                }
-               printf("\tpopq %%rax\n");
+               printf("\tlwz 14,52(1)\n");
        }
 
-       /* vars poppen */
+       printf("\t#vars poppen\n");
        for(j = VARBEGIN+1 - bnode->vars; j < VARBEGIN+1; j++) {
-               printf("\tpopq %%%s\n", param_reg(j));
+               printf("\tlwz %s,%d(1)\n", param_reg(j), j*4);
        }
 
-       /* params poppen */
+       printf("\t#params poppen\n");
        for(j = 0; j < bnode->soffset; j++) {
-               printf("\tpopq %%%s\n", param_reg(j));
+               printf("\tlwz %s,%d(1)\n", param_reg(j), j*4);
        }
 }
 
@@ -260,16 +271,16 @@ void prep_arg(struct treenode *bnode, int moveit)
                if((BN_REG == (char *) NULL) || (bnode->kids[1] != TREENULL && bnode->kids[1]->op == O_ID && bnode->kids[1]->kids[0] == TREENULL && bnode->kids[1]->kids[1] == TREENULL)) {
                        if(bnode->kids[1]->name != (char *) NULL && strcmp(bnode->kids[1]->name,"this")!=0) {
                                KIDREG2PARM(1);
-                               printf("\tpushq %%%s\n", KID_REG(1));
+                               printf("\tstw %s,%d(1)\n", KID_REG(1),bnode->soffset*4);
                        } else {
-                               printf("\tpushq %%%s\n", param_reg(bnode->soffset));
+                               printf("\tstw %s,%d(1)\n", param_reg(bnode->soffset), bnode->soffset*4);
                        }
                } else {
-                       printf("\tpushq %%%s\n", BN_REG);
+                       printf("\tstw %s,%d(1)\n", BN_REG, bnode->soffset*4);
                }
        } else { /* just O_ID */
                KIDREG2PARM(0);
-               printf("\tpushq %%%s\n", KID_REG(0));
+               printf("\tstw %s,%d(1)\n", KID_REG(0), bnode->soffset*4);
        }
 }
 
@@ -341,11 +352,9 @@ expr: O_SUB(expr,O_SUB(imm,expr))  # 2 # gen_subspecial(bnode, 1);
 expr: O_SUB(expr, O_ADD(O_ID,expr))    # 1 # gen_id_eno(bnode);
 
 
-expr: O_ADD(expr,expr)   # 1 # gen_e_eno(bnode, "addq");
-expr: O_ADD(expr,imm)    # 2 # gen_e_imm(bnode, "addq");
-expr: O_ADD(imm,expr)    # 1 # gen_imm_eno(bnode, "addq");
-
-expr: O_ADD(expr,O_FIELD(expr)) # 2 # gen_e_field(bnode, "addq");
+expr: O_ADD(expr,expr)   # 1 # gen_e_eno(bnode, "add");
+expr: O_ADD(expr,imm)    # 2 # gen_e_imm(bnode, "add");
+expr: O_ADD(imm,expr)    # 1 # gen_imm_eno(bnode, "add");
 
 
 expr: O_MUL(expr,expr)   # 1 # gen_e_eno(bnode, "mullw");