X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=gesamt%2Fcode.bfe;h=9e85ee17abafb47722511d155aef96b151dd9301;hb=2c41106ae4fd8e8b01f3e9c4ffe58f11263b318f;hp=8615fab3d1222133a0a14eda3fcf0f270bf71415;hpb=1016ac04fb98f0e5de8ff18711518b3113e2c7ce;p=uebersetzerbau-ss10.git

diff --git a/gesamt/code.bfe b/gesamt/code.bfe
index 8615fab..9e85ee1 100644
--- a/gesamt/code.bfe
+++ b/gesamt/code.bfe
@@ -164,7 +164,9 @@ 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 +184,63 @@ 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;
+	/* vars pushen */
+	for(j = bnode->paramges; j < bnode->paramges + bnode->vars; j++) {
+		printf("\tpushq %%%s\n", param_reg(j));
+	}
+	/* TODO: schoener machen... */
+	if(strcmp(BN_REG, "rax")!=0) {
+		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 = bnode->paramges + bnode->vars - 1; j >= bnode->paramges; j--) {
+		printf("\tpopq %%%s\n", param_reg(j));
+	}
+
+	/* params poppen */
+	for(j = bnode->soffset - 1; j >= 0; j--) {
+		printf("\tpopq %%%s\n", param_reg(j));
+	}
+}
+
+void prep_arg(struct treenode *bnode, int moveit)
+{
+	printf("\t//args-nr.: %%%s to %%%s (moveit: %i)\n", BN_REG, param_reg(bnode->soffset), moveit);
+	printf("\tpushq %%%s\n", param_reg(bnode->soffset));
+	if(moveit) { /* expr */
+		move(BN_REG, param_reg(bnode->soffset));
+	} else { /* just O_ID */
+		KIDREG2PARM(0);
+		move(KID_REG(0), param_reg(bnode->soffset));
+	}
+}
+
 %}
 
 %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
+%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));
@@ -209,7 +258,7 @@ 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();
+ret: O_RET(retexpr) # 2 # printf("\t//o_ret(expr)\n"); move(BN_REG, "rax");
 
 retexpr: O_ID # 1 # printf("\t//retexpr\n"); if(bnode->param_index > -1) move(param_reg(bnode->param_index), BN_REG);
 retexpr: expr
@@ -219,6 +268,10 @@ expr: O_ID # 0 #
 expr: imm # 1 # moveimm(BN_VAL, BN_REG);
 expr: O_BOOL(expr) # 0 #
 
+expr: O_CALL(expr,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");