Add MSR load/store, fix M43 interpretation and CPUID indirection

1 files changed, 67 insertions, 0 deletions

diff --git a/tests/test.rs b/tests/test.rs
index a21cfcc..2c4e855 100644
--- a/tests/test.rs
+++ b/tests/test.rs
@@ -1824,3 +1824,70 @@ fn test_bash_cfree() {
     let inst = decoder.decode(data[..].iter().cloned()).unwrap();
     assert_eq!(format!("{}", inst), expected);
 }
+
+// from 460gx system firmware
+#[test]
+fn test_msr() {
+    let decoder = InstDecoder::default();
+
+    let expected = "[MMI] mov r44=0x40; mov r31=msr[r37]; nop.i 0x0;;";
+    let data = [0x09, 0x60, 0x01, 0x01, 0x00, 0x24, 0xf0, 0x01, 0x94, 0x2c, 0x08, 0x00, 0x00, 0x00, 0x04, 0x00];
+    let inst = decoder.decode(data[..].iter().cloned()).unwrap();
+    assert_eq!(format!("{}", inst), expected);
+
+    let expected = "[MFI] mov msr[r37]=r9; nop.f 0x0; nop.i 0x0;;";
+    let data = [0x0d, 0x00, 0x24, 0x4a, 0x06, 0x04, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00];
+    let inst = decoder.decode(data[..].iter().cloned()).unwrap();
+    assert_eq!(format!("{}", inst), expected);
+
+    let expected = "[MFI] mov msr[r2]=r9; nop.f 0x0; nop.i 0x0;;";
+    let data = [0x0d, 0x00, 0x24, 0x04, 0x06, 0x04, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00];
+    let inst = decoder.decode(data[..].iter().cloned()).unwrap();
+    assert_eq!(format!("{}", inst), expected);
+
+    let expected = "[MMI] mov r20=msr[r3]; mov r21=msr[r21]; nop.i 0x0";
+    let data = [0x08, 0xa0, 0x00, 0x06, 0x16, 0x04, 0x50, 0x01, 0x54, 0x2c, 0x08, 0x00, 0x00, 0x00, 0x04, 0x00];
+    let inst = decoder.decode(data[..].iter().cloned()).unwrap();
+    assert_eq!(format!("{}", inst), expected);
+
+    let expected = "[MMI] mov r50=0x60e; mov r54=msr[r48]; nop.i 0x0";
+    let data = [0x08, 0x90, 0x39, 0x00, 0x0c, 0x24, 0x60, 0x03, 0xc0, 0x2c, 0x08, 0x00, 0x00, 0x00, 0x04, 0x00];
+    let inst = decoder.decode(data[..].iter().cloned()).unwrap();
+    assert_eq!(format!("{}", inst), expected);
+
+    let expected = "[MII] (p04) mov msr[r3]=r38; (p08) mov r16=0x405; (p09) mov r17=0x406;;";
+    let data = [0x81, 0x00, 0x98, 0x06, 0x06, 0x04, 0x02, 0x29, 0x00, 0x10, 0xc8, 0x24, 0x62, 0x00, 0x20, 0x90];
+    let inst = decoder.decode(data[..].iter().cloned()).unwrap();
+    assert_eq!(format!("{}", inst), expected);
+}
+
+// from 460gx system firmware
+#[test]
+fn test_indirection() {
+    let decoder = InstDecoder::default();
+
+    let expected = "[MMI] mov r2=0x3;; mov r2=cpuid[r2]; nop.i 0x0;;";
+    let data = [0x0B, 0x10, 0x0C, 0x00, 0x00, 0x24, 0x20, 0x00, 0x08, 0x2E, 0x08, 0x00, 0x00, 0x00, 0x04, 0x00];
+    let inst = decoder.decode(data[..].iter().cloned()).unwrap();
+    assert_eq!(format!("{}", inst), expected);
+
+    let expected = "[MMI] mov r20=0x3;; mov r20=cpuid[r20]; nop.i 0x0;;";
+    let data = [0x0B, 0xA0, 0x0C, 0x00, 0x00, 0x24, 0x40, 0x01, 0x50, 0x2E, 0x08, 0x00, 0x00, 0x00, 0x04, 0x00];
+    let inst = decoder.decode(data[..].iter().cloned()).unwrap();
+    assert_eq!(format!("{}", inst), expected);
+
+    let expected = "[MMI] mov r41=dbr[r0]; mov r42=dbr[r37]; nop.i 0x0";
+    let data = [0x08, 0x48, 0x01, 0x00, 0x11, 0x04, 0xA0, 0x02, 0x94, 0x22, 0x08, 0x00, 0x00, 0x00, 0x04, 0x00];
+    let inst = decoder.decode(data[..].iter().cloned()).unwrap();
+    assert_eq!(format!("{}", inst), expected);
+
+    let expected = "[MMI] mov dbr[r37]=r42;; mov dbr[r38]=r43; nop.i 0x0;;";
+    let data = [0x0B, 0x00, 0xA8, 0x4A, 0x01, 0x04, 0x00, 0x58, 0x99, 0x02, 0x08, 0x00, 0x00, 0x00, 0x04, 0x00];
+    let inst = decoder.decode(data[..].iter().cloned()).unwrap();
+    assert_eq!(format!("{}", inst), expected);
+
+    let expected = "[MMI] mov r44=pmc[r0]; mov pmc[r0]=r2; nop.i 0x0;;";
+    let data = [0x09, 0x60, 0x01, 0x00, 0x14, 0x04, 0x00, 0x10, 0x00, 0x08, 0x08, 0x00, 0x00, 0x00, 0x04, 0x00];
+    let inst = decoder.decode(data[..].iter().cloned()).unwrap();
+    assert_eq!(format!("{}", inst), expected);
+}