Make a start on opcodes

1 files changed, 0 insertions, 122 deletions

diff --git a/src/main/kotlin/Registers.kt b/src/main/kotlin/Registers.kt
deleted file mode 100644
index e65a372..0000000
--- a/src/main/kotlin/Registers.kt
+++ /dev/null
@@ -1,122 +0,0 @@
-class Registers {
-
-  // General purpose registers
-  var B: Int = 0
-    set(value) {
-      validateUnsigned8Bit(value)
-      field = value
-    }
-  var C: Int = 0
-    set(value) {
-      validateUnsigned8Bit(value)
-      field = value
-    }
-  var D: Int = 0
-    set(value) {
-      validateUnsigned8Bit(value)
-      field = value
-    }
-  var E: Int = 0
-    set(value) {
-      validateUnsigned8Bit(value)
-      field = value
-    }
-  var H: Int = 0
-    set(value) {
-      validateUnsigned8Bit(value)
-      field = value
-    }
-  var L: Int = 0
-    set(value) {
-      validateUnsigned8Bit(value)
-      field = value
-    }
-
-  // Special registers
-  var A: Int = 0
-    set(value) {
-      validateUnsigned8Bit(value)
-      field = value
-    }
-  var F: Int = 0
-    set(value) {
-      validateUnsigned8Bit(value)
-      field = value
-    }
-  var SP: Int = 0
-    set(value) {
-      validateUnsigned16Bit(value)
-      field = value
-    }
-  var PC: Int = 0
-    set(value) {
-      validateUnsigned16Bit(value)
-      field = value
-    }
-
-  // 16-Bit accessors
-  var AF: Int
-    get() {
-      return bytesToWord(A, F)
-    }
-    set(value) {
-      validateUnsigned16Bit(value)
-      A = getMsb(value)
-      F = getLsb(value)
-    }
-
-  var BC: Int
-    get() {
-      return bytesToWord(B, C)
-    }
-    set(value) {
-      validateUnsigned16Bit(value)
-      B = getMsb(value)
-      C = getLsb(value)
-    }
-
-  var DE: Int
-    get() {
-      return bytesToWord(D, E)
-    }
-    set(value) {
-      validateUnsigned16Bit(value)
-      D = getMsb(value)
-      E = getLsb(value)
-    }
-
-  var HL: Int
-    get() {
-      return bytesToWord(H, L)
-    }
-    set(value) {
-      validateUnsigned16Bit(value)
-      H = getMsb(value)
-      L = getLsb(value)
-    }
-
-  private fun bytesToWord(msb: Int, lsb: Int): Int {
-    return msb.shl(8) + lsb
-  }
-
-  private fun getMsb(value: Int): Int {
-    return value.shr(8)
-  }
-
-  private fun getLsb(value: Int): Int {
-    return value.and(0xFF)
-  }
-
-  private fun validateUnsigned8Bit(value: Int) {
-    if(value < 0 || value > 255) {
-      throw IllegalArgumentException("Value $value is not an unsigned 8-Bit value")
-    }
-  }
-
-  private fun validateUnsigned16Bit(value: Int) {
-    if(value < 0 || value > 65535) {
-      throw IllegalArgumentException("Value $value is not an unsigned 16-Bit value")
-    }
-  }
-
-}
\ No newline at end of file