printf("\taddq %%%s, %%%s\n", KIDKID_REG(1,1), BN_REG);
}
+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));
+ } /*else: x := x - 1 geht in einem befehl */
+ printf("\tsub $%d, %%%s\n", KIDKID_VAL(0,1), KID_REG(1));
+}
+
+void gen_sub_field(struct treenode *bnode)
+{
+ /* siehe intelli_03.0 @ gesamt */
+ printf("\t//gen_sub_field\n");
+ KIDKIDREG2PARM(1,0);
+ if(!(strcmp(bnode->kids[0]->kids[0]->kids[0]->name, bnode->kids[1]->kids[0]->name) == 0 &&
+ bnode->kids[0]->kids[0]->soffset == bnode->kids[1]->soffset)) {
+ KIDKIDKIDREG2PARM(0,0,0);
+ printf("\tmov %d(%%%s), %%%s\n", bnode->kids[0]->kids[0]->soffset * 8, KIDKIDKID_REG(0,0,0), BN_REG);
+ printf("\tmov %%%s, %d(%%%s)\n", BN_REG, bnode->kids[1]->soffset * 8, KIDKID_REG(1,0));
+ }
+ printf("\tsub $%d, %d(%%%s)\n", bnode->kids[0]->kids[1]->val, bnode->kids[1]->soffset * 8, KIDKID_REG(1,0));
+}
+
%}
%start begin
begin: assign # 0 #
begin: ifstat # 0 #
+
assign: O_ASSIGN(expr, O_ID) # 1 # KIDREG2PARM(1); printf("\tmovq %%%s, %%%s\n", BN_REG, KID_REG(1));
assign: O_ASSIGN(imm, O_ID) # 1 # KIDREG2PARM(1); printf("\tmovq $%d, %%%s\n", KID_VAL(0), KID_REG(1));
assign: O_ASSIGN(O_ID, O_ID) # 1 # KIDREG2PARM(1); KIDREG2PARM(0); printf("\tmovq %%%s, %%%s\n", KID_REG(0), KID_REG(1));
+assign: O_ASSIGN(O_SUB(O_ID,O_NUM), O_ID) # 1 # assign_var(bnode);
+
assign: O_ASSIGN(expr, O_FIELD(expr)) # 1 # KIDKIDREG2PARM(1,0); printf("\tmovq %%%s, %d(%%%s)\n", BN_REG, bnode->kids[1]->soffset * 8, KIDKID_REG(1,0));
assign: O_ASSIGN(O_ID, O_FIELD(expr)) # 1 # KIDREG2PARM(0); KIDKIDREG2PARM(1,0); printf("\tmovq %%%s, %d(%%%s)\n", KID_REG(0), bnode->kids[1]->soffset * 8, KIDKID_REG(1,0));
+assign: O_ASSIGN(O_SUB(O_FIELD(O_ID), imm), O_FIELD(O_ID)) # 1 # gen_sub_field(bnode);
+
+
+ifstat: O_IF(O_ID) # 1 # /* fuer faelle wie "if bla then" noetig */ KIDREG2PARM(0); printf("\ttest $-1, %%%s\n", KID_REG(0));
+ifstat: O_IF(expr) # 2 # /* iburg beschummeln :/ */ printf("\ttest $-1, %%rax\n");
+ifstat: O_IF(O_BOOL(expr)) # 1 # /* dann braucht man kein test */
+
ret: O_RET(retexpr) # 2 # printf("\t//o_ret(expr)\n"); move(BN_REG, "rax"); func_footer();
retexpr: O_ID # 1 # printf("\t//retexpr\n"); if(bnode->param_index > -1) move(param_reg(bnode->param_index), BN_REG);
retexpr: expr
-ifstat: O_IF(O_ID) # 1 # /* fuer faelle wie "if bla then" noetig */ KIDREG2PARM(0); printf("\ttest $-1, %%%s\n", KID_REG(0));
-ifstat: O_IF(expr) # 2 # /* iburg beschummeln :/ */ printf("\ttest $-1, %%rax\n");
-ifstat: O_IF(O_BOOL(expr)) # 1 # /* dann braucht man kein test */
expr: O_ID # 0 #
expr: imm # 1 # moveimm(BN_VAL, BN_REG);