doc

src/main/kotlin/razorvine/ksim65/Cpu6502.kt

@@ -1409,6 +1409,7 @@ open class Cpu6502 : BusComponent() {
     // unofficial/illegal 6502 instructions
     // see http://www.ffd2.com/fridge/docs/6502-NMOS.extra.opcodes
     // or https://github.com/quietust/nintendulator/blob/master/src/CPU.cpp (search for LogBadOps)
+    // or https://github.com/stardot/b-em/blob/master/src/6502.c
     // TODO: some of these may be implemented incorrectly / are not finished yet
 
 

src/test/kotlin/Test6502TestSuiteIllegalInstructions.kt

@@ -4,6 +4,8 @@ import org.junit.jupiter.api.parallel.ExecutionMode
 import kotlin.test.*
 
 // TODO: implement the still missing illegal instructions and replace these tests with the 'real' runTest
+// the instr_test_v5 from nesdev https://wiki.nesdev.com/w/index.php/Emulator_tests may be useful to test the instructions
+
 
 @Execution(ExecutionMode.CONCURRENT)
 class Test6502TestSuiteIllegalInstructions: FunctionalTestsBase() {