79 lines
2.5 KiB
Kotlin
79 lines
2.5 KiB
Kotlin
package android.emu6502.instructions
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import android.emu6502.CPU
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open class BaseInstruction(val instruction: Instruction, private val cpu: CPU) {
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init {
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val opcodes: IntArray = Opcodes.MAP[instruction] as IntArray
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val methods = arrayOf(::immediate, ::zeroPage, ::zeroPageX, ::zeroPageY, ::absolute,
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::absoluteX, ::absoluteY, ::indirect, ::indirectX, ::indirectY, ::single, ::branch)
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opcodes.forEachIndexed { i, opcode ->
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if (opcode != 0xff) {
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cpu.addInstruction(opcodes[i], InstructionTarget(this, methods[i]))
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}
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}
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}
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open fun immediate() {
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throw IllegalStateException("Instruction " + javaClass.getSimpleName() + " not implemented" +
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" with immediate addressing")
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}
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open fun zeroPage() {
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throw IllegalStateException("Instruction " + javaClass.getSimpleName() + " not implemented" +
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" with zeroPage addressing")
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}
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open fun zeroPageX() {
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throw IllegalStateException("Instruction " + javaClass.getSimpleName() + " not implemented" +
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" with zeroPageX addressing")
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}
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open fun zeroPageY() {
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throw IllegalStateException("Instruction " + javaClass.getSimpleName() + " not implemented" +
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" with zeroPageY addressing")
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}
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open fun absolute() {
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throw IllegalStateException("Instruction " + javaClass.getSimpleName() + " not implemented" +
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" with absolute addressing")
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}
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open fun absoluteX() {
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throw IllegalStateException("Instruction " + javaClass.getSimpleName() + " not implemented" +
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" with absoluteX addressing")
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}
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open fun absoluteY() {
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throw IllegalStateException("Instruction " + javaClass.getSimpleName() + " not implemented" +
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" with absoluteY addressing")
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}
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open fun indirect() {
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throw IllegalStateException("Instruction " + javaClass.getSimpleName() + " not implemented" +
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" with indirect addressing")
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}
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open fun indirectX() {
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throw IllegalStateException("Instruction " + javaClass.getSimpleName() + " not implemented" +
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" with indirectX addressing")
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}
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open fun indirectY() {
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throw IllegalStateException("Instruction " + javaClass.getSimpleName() + " not implemented" +
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" with indirectY addressing")
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}
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open fun single() {
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throw IllegalStateException("Instruction " + javaClass.getSimpleName() + " not implemented" +
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" with single addressing")
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}
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open fun branch() {
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throw IllegalStateException("Instruction " + javaClass.getSimpleName() + " not implemented" +
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" with branch addressing")
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}
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}
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