X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=gesamt%2Fcode.bfe;h=76175ab861406e4a53d3926abe98321e77bf09f0;hb=7ba1a3cafae8f8c6bf6caaedf5cc4a3f73a5aa10;hp=15eb808460cc8514a40a7b70e769c88cafad0885;hpb=dc9777f5c4d517c8c4f2888449250c8f187f2fa6;p=uebersetzerbau-ss10.git

diff --git a/gesamt/code.bfe b/gesamt/code.bfe
index 15eb808..76175ab 100644
--- a/gesamt/code.bfe
+++ b/gesamt/code.bfe
@@ -43,8 +43,11 @@ void gen_id_eno(struct treenode *bnode)
 {
 	printf("\t//gen_id_eno\n");
 	KIDKIDREG2PARM(1,0);
-	printf("\taddq %%%s, %%%s\n", KIDKID_REG(1,0), KIDKID_REG(1,1));
+	KIDKIDREG2PARM(1,1);
+	KIDREG2PARM(0);
+	move(KID_REG(0), BN_REG);
 	printf("\tsubq %%%s, %%%s\n", KIDKID_REG(1,1), BN_REG);
+	printf("\tsubq %%%s, %%%s\n", KIDKID_REG(1,0), BN_REG);
 }
 
 void gen_e_field(struct treenode *bnode, char *instr)
@@ -164,7 +167,9 @@ void gen_subspecial(struct treenode *bnode, short e)
 	KIDKIDREG2PARM(1,0);
 
 	if(e) {
-		printf("\tsubq $%d, %%%s\n", KIDKID_VAL(1,0), BN_REG);
+		if(KIDKID_VAL(1,0) != 0) {
+			printf("\tsubq $%d, %%%s\n", KIDKID_VAL(1,0), BN_REG);
+		}
 	} else {
 		printf("\tsubq %%%s, %%%s\n", KIDKID_REG(1,0), BN_REG);
 	}
@@ -182,16 +187,77 @@ void assign_var(struct treenode *bnode)
 	printf("\tsub $%d, %%%s\n", KIDKID_VAL(0,1), KID_REG(1));
 }
 
+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("\t//vars pushen\n");
+	for(j = 6; j > 6 - bnode->vars; j--) {
+		printf("\tpushq %%%s\n", param_reg(j));
+	}
+
+	/* TODO: schoener machen... */
+	if(strcmp(BN_REG, "rax")!=0) {
+		printf("\t//tmp register pushen\n");
+		printf("\tpushq %%rax\n");
+		if(strcmp(BN_REG, "r10")!=0) {
+			printf("\tpushq %%r10\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("\tpopq %%rax\n");
+	}
+
+	/* vars poppen */
+	for(j = 7 - bnode->vars; j < 7; j++) {
+		printf("\tpopq %%%s\n", param_reg(j));
+	}
+
+	/* params poppen */
+	for(j = 0; j < bnode->soffset; j++) {
+		printf("\tpopq %%%s\n", param_reg(j));
+	}
+}
+
+void prep_arg(struct treenode *bnode, int moveit)
+{
+	printf("\t//args-nr.: %i (%%%s) [moveit: %i]\n", bnode->soffset, param_reg(bnode->soffset), moveit);
+	if(moveit) { /* expr */
+		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));
+			} else {
+				printf("\tpushq %%%s\n", param_reg(bnode->soffset));
+			}
+		} else {
+			printf("\tpushq %%%s\n", BN_REG);
+		}
+	} else { /* just O_ID */
+		KIDREG2PARM(0);
+		printf("\tpushq %%%s\n", KID_REG(0));
+	}
+}
+
 %}
 
 %start begin
-%term O_RET=1 O_NULL=2 O_SUB=3 O_MUL=4 O_OR=5 O_LESS=6 O_EQ=7 O_ID=8 O_ADD=9 O_NUM=10 O_FIELD=11 O_MTWO=12 O_MFOUR=13 O_MEIGHT=14 O_MONE=15 O_ASSIGN=16 O_IF=17 O_BOOL=18 O_CALL=19
+%term O_RET=1 O_NULL=2 O_SUB=3 O_MUL=4 O_OR=5 O_LESS=6 O_EQ=7 O_ID=8 O_ADD=9 O_NUM=10 O_FIELD=11 O_MTWO=12 O_MFOUR=13 O_MEIGHT=14 O_MONE=15 O_ASSIGN=16 O_IF=17 O_BOOL=18 O_CALL=19 O_ARG=20 O_NOTHING=21
 
 %%
 
 begin: ret # 0 # printf("\n");
 begin: assign # 0 #
 begin: ifstat # 0 #
+begin: args # 0 #
 
 
 assign: O_ASSIGN(expr, O_ID) # 1 # KIDREG2PARM(1); printf("\tmovq %%%s, %%%s\n", BN_REG, KID_REG(1));
@@ -219,8 +285,10 @@ expr: O_ID # 0 #
 expr: imm # 1 # moveimm(BN_VAL, BN_REG);
 expr: O_BOOL(expr) # 0 #
 
-expr: O_CALL # 0 # printf("\tcall %s\n", bnode->name);
-
+expr: O_CALL(expr) # 0 # make_call(bnode);
+expr: O_ARG(expr,expr) # 1 # prep_arg(bnode, 1);
+expr: O_ARG(O_ID,expr) # 1 # prep_arg(bnode, 0);
+expr: O_NOTHING # 0 #
 
 expr: O_SUB(expr,expr)          # 2 # gen_e_eno(bnode, "subq");
 expr: O_SUB(expr,O_FIELD(expr)) # 2 # gen_e_field(bnode, "subq");