[core]: New mapper: BMC-D1038

Author: tiagohm

core/src/main/kotlin/br/tiagohm/nestalgia/core/MapperFactory.kt

@@ -74,6 +74,7 @@ object MapperFactory {
             56 -> Kaiser202(console)
             57 -> Mapper057(console)
             58 -> Mapper058(console)
+            59 -> UnlD1038(console)
             60 -> Mapper060(console)
             61 -> Mapper061(console)
             62 -> Mapper062(console)

core/src/main/kotlin/br/tiagohm/nestalgia/core/UnlD1038.kt

@@ -0,0 +1,53 @@
+package br.tiagohm.nestalgia.core
+
+import br.tiagohm.nestalgia.core.MirroringType.HORIZONTAL
+import br.tiagohm.nestalgia.core.MirroringType.VERTICAL
+
+// https://wiki.nesdev.com/w/index.php/INES_Mapper_059
+
+class UnlD1038(console: Console) : Mapper(console) {
+
+    @Volatile private var returnDipSwitch = false
+
+    override val dipSwitchCount = 2
+
+    override val prgPageSize = 0x4000
+
+    override val chrPageSize = 0x2000
+
+    override val allowRegisterRead = true
+
+    override fun initialize() {
+        writeRegister(0x8000, 0)
+    }
+
+    override fun readRegister(addr: Int): Int {
+        return if (returnDipSwitch) dipSwitches else internalRead(addr)
+    }
+
+    override fun writeRegister(addr: Int, value: Int) {
+        if (addr.bit7) {
+            selectPrgPage(0, (addr and 0x70) shr 4)
+            selectPrgPage(1, (addr and 0x70) shr 4)
+        } else {
+            selectPrgPage2x(0, (addr and 0x60) shr 4)
+        }
+
+        selectChrPage(0, addr and 0x07)
+
+        mirroringType = if (addr.bit3) HORIZONTAL else VERTICAL
+        returnDipSwitch = (addr and 0x100) == 0x100
+    }
+
+    override fun saveState(s: Snapshot) {
+        super.saveState(s)
+
+        s.write("returnDipSwitch", returnDipSwitch)
+    }
+
+    override fun restoreState(s: Snapshot) {
+        super.restoreState(s)
+
+        returnDipSwitch = s.readBoolean("returnDipSwitch")
+    }
+}

docs/index.html

@@ -336,7 +336,7 @@ <h5>iNES</h5>
                             <span class="badge badge-success">056</span>
                             <span class="badge badge-success">057</span>
                             <span class="badge badge-success">058</span>
-                            <span class="unknown badge badge-default">059</span>
+                            <span class="badge badge-success">059</span>
                             <span class="badge badge-success">060</span>
                             <span class="badge badge-success">061</span>
                             <span class="badge badge-success">062</span>
@@ -594,7 +594,7 @@ <h5>UNIF</h5>
                 <span class="badge badge-success" title="BMC-830118C">BMC-830118C</span>
                 <span class="badge badge-success" title="BMC-A65AS">BMC-A65AS</span>
                 <span class="badge badge-success" title="BMC-BS-5">BMC-BS-5</span>
-                <span class="badge badge-success yet" title="BMC-D1038">BMC-D1038</span>
+                <span class="badge badge-success" title="BMC-D1038">BMC-D1038</span>
                 <span class="badge badge-success" title="BMC-F-15">BMC-F-15</span>
                 <span class="badge badge-success yet" title="BMC-F15">BMC-F15</span>
                 <span class="badge badge-success yet" title="BMC-FK23C">BMC-FK23C</span>