X-Git-Url: http://wien.tomnetworks.com/gitweb/?p=uebersetzerbau-ss10.git;a=blobdiff_plain;f=gesamt_ppc%2Fcode.bfe;h=dad8b92dd7afce6cc77941f1cb8c0d65fe1a0ced;hp=384314e7d90227d5eceebe38e8d1432739f59e1f;hb=0f89341e10f662c3ce1128d83e660709da9c3785;hpb=be9027fc4d97ced5cd5c2286da4fd99d387ee657

diff --git a/gesamt_ppc/code.bfe b/gesamt_ppc/code.bfe
index 384314e..dad8b92 100644
--- a/gesamt_ppc/code.bfe
+++ b/gesamt_ppc/code.bfe
@@ -179,22 +179,11 @@ void gen_eqless(struct treenode *bnode, char *op, short e0, short e1, short deep
 		/* um (32-29)=3 nach rechts shiften und das LSB anschauen */
 		printf("\trlwinm %s,%s,%i,31,31\n", BN_REG, BN_REG, strcmp(op,"l")==0 ? 30 : 30);
 	}
+	/* vergleich mit null und in CR0 speichern */
+	printf("\tcmpwi %s,0\n", BN_REG);
 #endif
 }
 
-void gen_lea(struct treenode *bnode, short e)
-{
-	printf("\t#gen_lea(e= %i)\n", e);
-	KIDREG2PARM(0);
-	if(e) {
-		KIDKIDREG2PARM(1,0);
-		printf("\tlea (%%%s,%%%s,%d), %%%s\n", KID_REG(0), KIDKID_REG(1,0), -1 * KIDKID_VAL(1,1), BN_REG);
-	} else {
-		KIDKIDREG2PARM(1,1);
-		printf("\tlea (%%%s,%%%s,%d), %%%s\n", KID_REG(0), KIDKID_REG(1,1), -1 * KIDKID_VAL(1,0), BN_REG);
-	}
-}
-
 void gen_subspecial(struct treenode *bnode, short e)
 {
 	/* tritt z.b. bei snafu_05.0 auf */
@@ -221,7 +210,7 @@ void assign_var(struct treenode *bnode)
 		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));
+	printf("\tsubi %s,%s,%d\n", KID_REG(1), KID_REG(1), KIDKID_VAL(0,1));
 }
 
 void make_call(struct treenode *bnode)
@@ -292,10 +281,10 @@ void gen_sub_field(struct treenode *bnode)
 	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("\tmov %s,%d(%s)\n", BN_REG, bnode->kids[0]->kids[0]->soffset * 8, KIDKIDKID_REG(0,0,0));
+		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));
+	printf("\tsubi $%d, %d(%%%s)\n", bnode->kids[0]->kids[1]->val, bnode->kids[1]->soffset * 8, KIDKID_REG(1,0));
 }
 
 %}
@@ -317,12 +306,11 @@ assign: O_ASSIGN(O_ID, O_ID) # 1 # KIDREG2PARM(1); KIDREG2PARM(0); printf("\tmr
 
 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);
+assign: O_ASSIGN(expr, O_FIELD(expr)) # 1 # KIDKIDREG2PARM(1,0); printf("\tstw %s,%d(%s)\n", BN_REG, bnode->kids[1]->soffset * 4, KIDKID_REG(1,0));
+assign: O_ASSIGN(O_ID, O_FIELD(expr)) # 1 # KIDREG2PARM(0); KIDKIDREG2PARM(1,0); printf("\tstw %s,%d(%s)\n", KID_REG(0), bnode->kids[1]->soffset * 4, KIDKID_REG(1,0));
 
 
-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(O_ID) # 1 # /* fuer faelle wie "if bla then" noetig */ KIDREG2PARM(0); printf("\tcmpwi %s,0\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 */
 
@@ -352,16 +340,6 @@ 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_SUB(expr,O_MUL(O_MONE,expr))   # 1 # gen_lea(bnode,0);
-expr: O_SUB(expr,O_MUL(O_MTWO,expr))   # 1 # gen_lea(bnode,0);
-expr: O_SUB(expr,O_MUL(O_MFOUR,expr))  # 1 # gen_lea(bnode,0);
-expr: O_SUB(expr,O_MUL(O_MEIGHT,expr)) # 1 # gen_lea(bnode,0);
-
-expr: O_SUB(expr,O_MUL(expr,O_MONE))   # 1 # gen_lea(bnode,1);
-expr: O_SUB(expr,O_MUL(expr,O_MTWO))   # 1 # gen_lea(bnode,1);
-expr: O_SUB(expr,O_MUL(expr,O_MFOUR))  # 1 # gen_lea(bnode,1);
-expr: O_SUB(expr,O_MUL(expr,O_MEIGHT)) # 1 # gen_lea(bnode,1);
-
 
 expr: O_ADD(expr,expr)   # 1 # gen_e_eno(bnode, "addq");
 expr: O_ADD(expr,imm)    # 2 # gen_e_imm(bnode, "addq");
@@ -375,7 +353,6 @@ expr: O_MUL(expr,imm)    # 1 # gen_e_imm(bnode, "mullw");
 expr: O_MUL(imm,expr)    # 1 # gen_imm_eno(bnode, "mullw");
 
 expr: O_MUL(expr,O_FIELD(expr)) # 1 # gen_e_field(bnode, "mullw");
-expr: O_MUL(O_FIELD(expr),imm)  # 1 # gen_field_imm(bnode);
 
 expr: O_OR(expr,expr)          # 1 # gen_e_eno(bnode, "or");
 expr: O_OR(expr,imm)           # 2 # gen_e_imm(bnode, "or");