lookup output value in table

1 files changed, 26 insertions, 15 deletions

diff --git a/fw/types.h b/fw/types.h
index 55a17f6..f772878 100644
--- a/fw/types.h
+++ b/fw/types.h
@@ -15,25 +15,36 @@ typedef enum {
 typedef uint8_t U8;
 typedef uint16_t U16;
 typedef uint32_t U32;
-
 typedef int8_t I8;
 typedef int16_t I16;
 typedef int32_t I32;
 
+typedef enum {
+	NUM_U8,
+	NUM_U16,
+	NUM_U32,
+	NUM_I8,
+	NUM_I16,
+	NUM_I32,
+} NumType;
+
 // Number
 typedef struct {
-	enum {
-		NUM_U8,
-		NUM_U16,
-		NUM_U32,
-		NUM_I8,
-		NUM_I16,
-		NUM_I32,
-	} type;
-	U8 u8;
-	U16 u16;
-	U32 u32;
-	I8 i8;
-	I16 i16;
-	I32 i32;
+	NumType type;
+	union {
+		U8 u8;
+		U16 u16;
+		U32 u32;
+		I8 i8;
+		I16 i16;
+		I32 i32;
+	};
 } Number;
+
+Status u32ToNum(U32 x, NumType t, Number *n);
+
+// Compare two numbers.
+// -1 if a < b
+// 0 if a == b
+// 1 if a > b
+Status cmpNum(Number a, Number b, int *ord);