codea: verschachtelte subtraktionen funktionieren (ohne konstanten)

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

diff --git a/codea/code.bfe b/codea/code.bfe
index 0d4661ba19a598442911f0cae5895c11f913b448..fbef72d590ef092a9137a646fa35c331c880f498 100644 (file)
--- a/codea/code.bfe
+++ b/codea/code.bfe
@@ -10,15 +10,18 @@
 %}
 
 %start begin
-%term O_RETURN=1
+%term O_RET=1 O_NOT=2 O_SUB=3 O_MUL=4 O_OR=5 O_LESS=6 O_EQ=7 O_ID=8
 
 %%
 
-begin: ret
-ret: O_RETURN # 1 # ret();
+begin: ret # 0 # printf("// end\n");
+ret: O_RET(expr) # 1 # move(bnode->reg, "rax"); ret();
+
+expr: O_ID # 1 # if(bnode->param_index > -1) move(param_reg(bnode->param_index), bnode->reg);
+expr: O_SUB(expr,expr) # 1 # printf("\tsubq %%%s, %%%s\n", bnode->kids[0]->reg, bnode->kids[1]->reg);
 
 %%
 
+
 /* vim: filetype=c
  */
-