izapple2/core6502/nmos6502_test.go

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package core6502
import (
"fmt"
"testing"
)
func TestNMOS6502(t *testing.T) {
m := new(FlatMemory)
s := NewNMOS6502(m)
m.loadBinary("testdata/6502_functional_test.bin")
executeSuite(t, s, 0x200, 240, false, 255)
}
// To execute test suites from https://github.com/Klaus2m5/6502_65C02_functional_tests
func executeSuite(t *testing.T, s *State, stepAddress uint16, steps uint8, showStep bool, traceCPUStep uint8) {
s.reg.setPC(0x0400)
currentStep := uint8(255)
for true {
testCase := s.mem.Peek(stepAddress)
if testCase != currentStep {
currentStep = testCase
if showStep {
fmt.Printf("[ Step %d ]\n", testCase)
}
s.SetTrace(testCase == traceCPUStep)
}
if testCase >= steps {
break
}
pc := s.reg.getPC()
s.ExecuteInstruction()
if pc == s.reg.getPC() {
t.Fatalf("Failure in test %v.", testCase)
}
}
}