Initial commit

Adding work done so far.

1 files changed, 39 insertions, 0 deletions

diff --git a/qtmips_machine/tests/testregisters.cpp b/qtmips_machine/tests/testregisters.cpp
new file mode 100644
index 0000000..4430beb
--- /dev/null
+++ b/qtmips_machine/tests/testregisters.cpp
@@ -0,0 +1,39 @@
+#include "tst_machine.h"
+#include <qtmipsexception.h>
+#include <registers.h>
+
+void MachineTests::registers_gp0() {
+    Registers r;
+    QCOMPARE(r.read_gp(0), (unsigned)0);
+    r.write_gp(0, 0xff);
+    QCOMPARE(r.read_gp(0), (unsigned)0);
+}
+
+void MachineTests::registers_rw_gp() {
+    Registers r;
+    for (int i = 1; i < 32; i++) {
+        r.write_gp(i, 0xf00 + i);
+        QCOMPARE(r.read_gp(i), (unsigned)(0xf00 + i));
+    }
+}
+
+void MachineTests::registers_rw_hi_lo() {
+    Registers r;
+    r.write_hi_lo(false, 0xee);
+    r.write_hi_lo(true, 0xaa);
+    QCOMPARE(r.read_hi_lo(false), (unsigned)0xee);
+    QCOMPARE(r.read_hi_lo(true), (unsigned)0xaa);
+}
+
+void MachineTests::registers_pc() {
+    Registers r;
+    QCOMPARE(r.read_pc(), (unsigned)0x80020000); // Check initial pc address
+    QCOMPARE(r.pc_inc(), (unsigned)0x80020004);
+    QCOMPARE(r.pc_inc(), (unsigned)0x80020008);
+    QCOMPARE(r.pc_jmp(-0x8), (unsigned)0x80020000);
+    QCOMPARE(r.pc_jmp(0xC), (unsigned)0x8002000C);
+    r.pc_abs_jmp(0x80020100);
+    QCOMPARE(r.read_pc(), (unsigned)0x80020100);
+    QVERIFY_EXCEPTION_THROWN(r.pc_jmp(0x1), QtMipsExceptionUnalignedJump);
+    QVERIFY_EXCEPTION_THROWN(r.pc_abs_jmp(0x80020101), QtMipsExceptionUnalignedJump);
+}