codeb: var-assignments

[uebersetzerbau-ss10.git] / codeb / code.bfe

diff --git a/codeb/code.bfe b/codeb/code.bfe
index 71508309984d84be3344ba341443eccd1c46b5d6..86b6264a9ccfc08a371ef07872857f17e16a8f9c 100644 (file)
--- a/codeb/code.bfe
+++ b/codeb/code.bfe
@@ -175,11 +175,16 @@ void gen_subspecial(struct treenode *bnode, short e)
 %}
 
 %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
+%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
 
 %%
 
 begin: ret # 0 # printf("\n");
+begin: assign # 0 #
+
+assign: O_ASSIGN(O_ID, expr) # 1 # KIDREG2PARM(0); printf("\tmovq %%%s, %%%s\n", BN_REG, KID_REG(0));
+assign: O_ASSIGN(O_ID, O_ID) # 1 # KIDREG2PARM(0); KIDREG2PARM(1); printf("\tmovq %%%s, %%%s\n", KID_REG(1), KID_REG(0));
+
 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);