add get_instr_fields func to parse instruction fields from raw bits

1 files changed, 26 insertions, 1 deletions

diff --git a/inc/definitions.h b/inc/definitions.h
index ff2f7c6..c9367ff 100644
--- a/inc/definitions.h
+++ b/inc/definitions.h
@@ -11,6 +11,10 @@
  * The total number of words in a line
  */
 #define LINE_SIZE static_cast<int>(pow(2, 2))
+/**
+ * Number of bits in a word
+ */
+#define WORD_SPEC 32
 
 /**
  * The number of bits to specify a memory word
@@ -28,7 +32,8 @@
  * The total number of lines in l1 cache
  */
 #define L1_CACHE_WORD_SPEC 7
-#define L1_CACHE_LINE_SPEC static_cast<unsigned int>(L1_CACHE_WORD_SPEC - LINE_SPEC)
+#define L1_CACHE_LINE_SPEC                                                     \
+	static_cast<unsigned int>(L1_CACHE_WORD_SPEC - LINE_SPEC)
 #define L1_CACHE_LINES static_cast<int>(pow(2, L1_CACHE_LINE_SPEC))
 
 /**
@@ -47,6 +52,26 @@
 #define GPR_NUM 16
 
 /**
+ * The number of bits to specify an instruction type
+ */
+#define TYPE_SIZE 2
+
+/**
+ * The number of bits to specify a register
+ */
+#define REG_SIZE 5
+
+/**
+ * The number of bits to specify an R-Type opcode.
+ */
+#define R_OPCODE_SIZE 5
+
+/**
+ * The number of bits to specify an opcode.
+ */
+#define OPCODE_SIZE 4
+
+/**
  * Return the N least-significant bits from integer K using a bit mask
  * @param the integer to be parsed
  * @param the number of bits to be parsed