Restrict assembly input to fit game spec

1 files changed, 11 insertions, 9 deletions

diff --git a/tpu.h b/tpu.h
index a6b5845..6d89c66 100644
--- a/tpu.h
+++ b/tpu.h
@@ -6,7 +6,8 @@
 
 #define TPU_MAP_BUCKETS 64
 #define LABEL_MAP_BUCKETS 64
-#define TPU_MAX_INST 256
+#define TPU_MAX_INST_CNT 15
+#define TPU_MAX_INST_LEN 18
 
 /* enum order is important ! */ 
 
@@ -35,7 +36,7 @@ enum tpu_port_type {
 };
 
 union tpu_inst_op_val {
-	uint8_t lit;
+	int lit;
 	char *label;
 };
 
@@ -46,7 +47,7 @@ struct label_map_link {
 };
 
 struct label_map {
-	char *labels[TPU_MAX_INST]; /* borrowed from label_map_links */
+	char *labels[TPU_MAX_INST_CNT]; /* borrowed from label_map_links */
 	struct label_map_link *buckets[LABEL_MAP_BUCKETS];
 };
 
@@ -82,11 +83,12 @@ struct tpu {
 	size_t steps;
 	size_t idle_steps;
 
-	uint8_t acc, bak;
-	uint8_t pc;
+	int acc, bak;
+	int pc;
+
 	struct label_map label_map;
-	struct tpu_inst insts[TPU_MAX_INST];
-	size_t inst_cnt;
+	struct tpu_inst insts[TPU_MAX_INST_CNT];
+	size_t inst_cnt, label_cnt;
 };
 
 struct tpu_map_link {
@@ -118,9 +120,9 @@ void tpu_deinit(struct tpu *tpu);
 struct tpu_inst *tpu_current_inst(struct tpu *tpu);
 void tpu_init_ports(struct tpu *tpu, struct tpu_map *map);
 void tpu_update_ports(struct tpu *tpu);
-bool tpu_set_inst(struct tpu *tpu, uint8_t pc, enum tpu_inst_type inst,
+bool tpu_set_inst(struct tpu *tpu, int pc, enum tpu_inst_type inst,
 	unsigned opcnt, struct tpu_inst_op op1, struct tpu_inst_op op2);
-bool tpu_add_inst(struct tpu *tpu, enum tpu_inst_type inst,
+struct tpu_inst *tpu_add_inst(struct tpu *tpu, enum tpu_inst_type inst,
 	unsigned opcnt, struct tpu_inst_op op1, struct tpu_inst_op op2);
 void tpu_clear_ports(struct tpu *tpu);
 enum tpu_status tpu_exec_mov(struct tpu *tpu, struct tpu_inst *inst);