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);
}
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 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));
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,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");