add a basic structure for disassembler + executor

Instructions added Branch and Exchange (BX) Branch and Link (B) Multiply and Accumulate (MUL, MLA) Multiply Long and Accumulate (SMULL, SMLAL, UMULL, UMLAL) Single data swap (SWP) [WIP] Halfword Transfer (STRH, LDRH) Signed-off-by: Amneesh Singh <natto@weirdnatto.in>
2023-09-13 03:44:36 +05:30
parent 904e2b698e
commit 8a04eade92
22 changed files with 571 additions and 50 deletions
--- a/src/cpu/utility.cc
+++ b/src/cpu/utility.cc
@@ -0,0 +1,34 @@
+#include "utility.hh"
+
+std::ostream&
+operator<<(std::ostream& os, const Condition cond) {
+
+#define CASE(cond)                                                             \
+    case Condition::cond:                                                      \
+        os << #cond;                                                           \
+        break;
+
+    switch (cond) {
+        CASE(EQ)
+        CASE(NE)
+        CASE(CS)
+        CASE(CC)
+        CASE(MI)
+        CASE(PL)
+        CASE(VS)
+        CASE(VC)
+        CASE(HI)
+        CASE(LS)
+        CASE(GE)
+        CASE(LT)
+        CASE(GT)
+        CASE(LE)
+        case Condition::AL: {
+            // empty
+        }
+    }
+
+#undef CASE
+
+    return os;
+}