Move all x86-specific knowlege into the X86CodeGenerator.
diff --git a/libacc/tests/expr.c b/libacc/tests/expr.c
new file mode 100644
index 0000000..4f2d2e7
--- /dev/null
+++ b/libacc/tests/expr.c
@@ -0,0 +1,60 @@
+/* Test operators */
+
+testInc() { int a, b; a = 3; b = a++; printf("3++ = %d %d\n", b, a); }
+testDec() { int a, b; a = 3; b = a--; printf("3-- = %d %d\n", b, a); }
+testTimes(){ printf("%d * %d = %d\n", 10, 4, 10 * 4); }
+testDiv(){ printf("%d / %d = %d\n", 11, 4, 11 / 4); }
+testMod(){ printf("%d %% %d = %d\n", 11, 4, 11 % 4); }
+testPlus(){ printf("%d + %d = %d\n", 10, 4, 10 + 4); }
+testMinus(){ printf("%d - %d = %d\n", 10, 4, 10 - 4); }
+testShiftLeft(){ printf("%d << %d = %d\n", 10, 4, 10 << 4); }
+testShiftRight(){ printf("%d >> %d = %d\n", 100, 4, 100 >> 4); }
+testLess(){ printf("%d < %d = %d\n", 10, 4, 10 < 4); }
+testLesEqual(){ printf("%d <= %d = %d\n", 10, 4, 10 <= 4); }
+testGreater(){ printf("%d > %d = %d\n", 10, 4, 10 > 4); }
+testGreaterEqual(){ printf("%d >= %d = %d\n", 10, 4, 10 >= 4); }
+testEqualTo(){ printf("%d == %d = %d\n", 10, 4, 10 == 4); }
+testNotEqualTo(){ printf("%d != %d = %d\n", 10, 4, 10 != 4); }
+testBitAnd(){ printf("%d & %d = %d\n", 10, 7, 10 & 7); }
+testBitXor(){ printf("%d ^ %d = %d\n", 10, 7, 10 ^ 7); }
+testBitOr(){ printf("%d | %d = %d\n", 10, 4, 10 | 4); }
+testAssignment(){ int a, b; a = 3; b = a; printf("b == %d\n", b); }
+testLogicalAnd(){ printf("%d && %d = %d\n", 10, 4, 10 && 4); }
+testLogicalOr(){ printf("%d || %d = %d\n", 10, 4, 10 || 4); }
+testAddressOf(){ int a; printf("&a is %d\n", &a); }
+testPointerIndirection(){ int a, b; a = &b; b = 17; printf("*%d = %d =?= %d\n", a, * (int*) a, b); }
+testNegation(){ printf("-%d = %d\n", 10, -10); }
+testUnaryPlus(){ printf("+%d = %d\n", 10, +10); }
+testUnaryNot(){ printf("!%d = %d\n", 10, !10); }
+testBitNot(){ printf("~%d = %d\n", 10, ~10); }
+
+main(a,b) {
+ testInc();
+ testDec();
+ testTimes();
+ testDiv();
+ testMod();
+ testPlus();
+ testMinus();
+ testShiftLeft();
+ testShiftRight();
+ testLess();
+ testLesEqual();
+ testGreater();
+ testGreaterEqual();
+ testEqualTo();
+ testNotEqualTo();
+ testBitAnd();
+ testBinXor();
+ testBitOr();
+ testAssignment();
+ testLogicalAnd();
+ testLogicalOr();
+ testAddressOf();
+ testPointerIndirection();
+ testNegation();
+ testUnaryPlus();
+ testUnaryNot();
+ testBitNot();
+ return 0;
+}
\ No newline at end of file