mirror of https://github.com/irmen/ksim65.git
added joystick to C64 emulation (via numpad keys)
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@ -0,0 +1,24 @@
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Free/open source roms for the C64
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See https://github.com/MEGA65/open-roms
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The following copyright notices apply to the entirety of this package,
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including each source file, unless otherwise noted in each file or directory.
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Copyright Paul Gardner-Stephen, 2019.
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Copyright Roman Standzikowski (FeralChil64), 2019-2020.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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@ -9,12 +9,20 @@ import java.awt.event.KeyEvent
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/**
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/**
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* Minimal simulation of the MOS 6526 CIA chip.
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* Minimal simulation of the MOS 6526 CIA chip.
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* Depending on what CIA it is (1 or 2), some registers do different things on the C64.
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* Depending on what CIA it is (1 or 2), some registers do different things on the C64.
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* This implementation provides a working keyboard matrix, TOD clock, and the essentials of the timer A and B.
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* This implementation provides a working keyboard matrix, joystick in port#2 (cia 1),
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* time of day clock, and the essentials of the timer A and B.
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*/
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*/
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class Cia(val number: Int, startAddress: Address, endAddress: Address, val cpu: Cpu6502) : MemMappedComponent(startAddress, endAddress) {
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class Cia(val number: Int, startAddress: Address, endAddress: Address, val cpu: Cpu6502) : MemMappedComponent(startAddress, endAddress) {
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private var ramBuffer = Array<UByte>(endAddress-startAddress+1) { 0 }
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private var ramBuffer = Array<UByte>(endAddress-startAddress+1) { 0 }
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private var regPRA = 0xff
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private var regPRA = 0xff
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// joystick in port 2 configuration (only works on cia#1)
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private var joy2up = false
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private var joy2down = false
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private var joy2left = false
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private var joy2right = false
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private var joy2fire = false
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class TimeOfDay {
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class TimeOfDay {
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private var updatedAt = 0L
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private var updatedAt = 0L
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private var startedAt = 0L
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private var startedAt = 0L
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@ -125,6 +133,11 @@ class Cia(val number: Int, startAddress: Address, endAddress: Address, val cpu:
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timerAset = 0
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timerAset = 0
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timerBactual = 0
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timerBactual = 0
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timerBset = 0
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timerBset = 0
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joy2up = false
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joy2down = false
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joy2left = false
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joy2right = false
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joy2fire = false
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}
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}
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override operator fun get(offset: Int): UByte {
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override operator fun get(offset: Int): UByte {
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@ -139,71 +152,85 @@ class Cia(val number: Int, startAddress: Address, endAddress: Address, val cpu:
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}
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}
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val register = offset and 15
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val register = offset and 15
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if (number == 1 && register == 0x01) {
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// register 1 on CIA#1 is the keyboard data port
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if(number==1) {
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// if bit is cleared in PRA, contains keys pressed in that column of the matrix
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// first CIA has keyboard matrix
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return when (regPRA) {
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if(register==0x00) {
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0b00000000 -> {
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// reading $dc00 is joystick in port #2
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// check if any keys are pressed at all (by checking all columns at once)
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return (0b01100000
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if (hostKeyPresses.isEmpty()) 0xff.toShort() else 0x00.toShort()
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or (if(joy2up) 0 else 0b00000001)
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}
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or (if(joy2down) 0 else 0b00000010)
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0b11111110 -> {
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or (if(joy2left) 0 else 0b00000100)
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// read column 0
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or (if(joy2right) 0 else 0b00001000)
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scanColumn(HostKeyPress(KeyEvent.VK_DOWN), HostKeyPress(KeyEvent.VK_F5), HostKeyPress(KeyEvent.VK_F3),
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or (if(joy2fire) 0 else 0b00010000)).toShort()
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HostKeyPress(KeyEvent.VK_F1), HostKeyPress(KeyEvent.VK_F7), HostKeyPress(KeyEvent.VK_RIGHT),
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} else if(register==0x01) {
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HostKeyPress(KeyEvent.VK_ENTER), HostKeyPress(KeyEvent.VK_BACK_SPACE))
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// register 1 on CIA#1 is the keyboard data port (and joystick #1...)
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}
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// if bit is cleared in PRA, contains keys pressed in that column of the matrix
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0b11111101 -> {
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// NOTE: we do not emulate a joystick in port #1 as this conflicts with the keyboard.
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// read column 1
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// just use the joystick in port #2 for now...
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scanColumn(HostKeyPress(KeyEvent.VK_SHIFT), // left shift
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return when (regPRA) {
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HostKeyPress(KeyEvent.VK_E), HostKeyPress(KeyEvent.VK_S), HostKeyPress(KeyEvent.VK_Z),
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0b00000000 -> {
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HostKeyPress(KeyEvent.VK_4), HostKeyPress(KeyEvent.VK_A), HostKeyPress(KeyEvent.VK_W),
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// check if any keys are pressed at all (by checking all columns at once)
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HostKeyPress(KeyEvent.VK_3))
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if (hostKeyPresses.isEmpty()) 0xff.toShort() else 0x00.toShort()
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}
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}
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0b11111011 -> {
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0b11111110 -> {
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// read column 2
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// read column 0
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scanColumn(HostKeyPress(KeyEvent.VK_X), HostKeyPress(KeyEvent.VK_T), HostKeyPress(KeyEvent.VK_F),
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scanColumn(HostKeyPress(KeyEvent.VK_DOWN), HostKeyPress(KeyEvent.VK_F5), HostKeyPress(KeyEvent.VK_F3),
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HostKeyPress(KeyEvent.VK_C), HostKeyPress(KeyEvent.VK_6), HostKeyPress(KeyEvent.VK_D),
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HostKeyPress(KeyEvent.VK_F1), HostKeyPress(KeyEvent.VK_F7), HostKeyPress(KeyEvent.VK_RIGHT),
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HostKeyPress(KeyEvent.VK_R), HostKeyPress(KeyEvent.VK_5))
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HostKeyPress(KeyEvent.VK_ENTER), HostKeyPress(KeyEvent.VK_BACK_SPACE))
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}
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}
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0b11110111 -> {
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0b11111101 -> {
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// read column 3
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// read column 1
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scanColumn(HostKeyPress(KeyEvent.VK_V), HostKeyPress(KeyEvent.VK_U), HostKeyPress(KeyEvent.VK_H),
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scanColumn(HostKeyPress(KeyEvent.VK_SHIFT), // left shift
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HostKeyPress(KeyEvent.VK_B), HostKeyPress(KeyEvent.VK_8), HostKeyPress(KeyEvent.VK_G),
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HostKeyPress(KeyEvent.VK_E), HostKeyPress(KeyEvent.VK_S), HostKeyPress(KeyEvent.VK_Z),
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HostKeyPress(KeyEvent.VK_Y), HostKeyPress(KeyEvent.VK_7))
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HostKeyPress(KeyEvent.VK_4), HostKeyPress(KeyEvent.VK_A), HostKeyPress(KeyEvent.VK_W),
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}
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HostKeyPress(KeyEvent.VK_3))
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0b11101111 -> {
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}
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// read column 4
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0b11111011 -> {
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scanColumn(HostKeyPress(KeyEvent.VK_N), HostKeyPress(KeyEvent.VK_O), HostKeyPress(KeyEvent.VK_K),
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// read column 2
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HostKeyPress(KeyEvent.VK_M), HostKeyPress(KeyEvent.VK_0), HostKeyPress(KeyEvent.VK_J),
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scanColumn(HostKeyPress(KeyEvent.VK_X), HostKeyPress(KeyEvent.VK_T), HostKeyPress(KeyEvent.VK_F),
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HostKeyPress(KeyEvent.VK_I), HostKeyPress(KeyEvent.VK_9))
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HostKeyPress(KeyEvent.VK_C), HostKeyPress(KeyEvent.VK_6), HostKeyPress(KeyEvent.VK_D),
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}
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HostKeyPress(KeyEvent.VK_R), HostKeyPress(KeyEvent.VK_5))
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0b11011111 -> {
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}
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// read column 5
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0b11110111 -> {
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scanColumn(HostKeyPress(KeyEvent.VK_COMMA), HostKeyPress(KeyEvent.VK_AT), HostKeyPress(KeyEvent.VK_COLON),
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// read column 3
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HostKeyPress(KeyEvent.VK_PERIOD), HostKeyPress(KeyEvent.VK_MINUS), HostKeyPress(KeyEvent.VK_L),
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scanColumn(HostKeyPress(KeyEvent.VK_V), HostKeyPress(KeyEvent.VK_U), HostKeyPress(KeyEvent.VK_H),
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HostKeyPress(KeyEvent.VK_P), HostKeyPress(KeyEvent.VK_PLUS))
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HostKeyPress(KeyEvent.VK_B), HostKeyPress(KeyEvent.VK_8), HostKeyPress(KeyEvent.VK_G),
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}
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HostKeyPress(KeyEvent.VK_Y), HostKeyPress(KeyEvent.VK_7))
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0b10111111 -> {
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}
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// read column 6
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0b11101111 -> {
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scanColumn(HostKeyPress(KeyEvent.VK_SLASH), HostKeyPress(KeyEvent.VK_CIRCUMFLEX), HostKeyPress(KeyEvent.VK_EQUALS),
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// read column 4
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HostKeyPress(KeyEvent.VK_SHIFT, rightSide = true), // right shift
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scanColumn(HostKeyPress(KeyEvent.VK_N), HostKeyPress(KeyEvent.VK_O), HostKeyPress(KeyEvent.VK_K),
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HostKeyPress(KeyEvent.VK_HOME), HostKeyPress(KeyEvent.VK_SEMICOLON), HostKeyPress(KeyEvent.VK_ASTERISK),
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HostKeyPress(KeyEvent.VK_M), HostKeyPress(KeyEvent.VK_0), HostKeyPress(KeyEvent.VK_J),
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HostKeyPress(KeyEvent.VK_DEAD_TILDE) // pound sign
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HostKeyPress(KeyEvent.VK_I), HostKeyPress(KeyEvent.VK_9))
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)
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}
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}
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0b11011111 -> {
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0b01111111 -> {
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// read column 5
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// read column 7
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scanColumn(HostKeyPress(KeyEvent.VK_COMMA), HostKeyPress(KeyEvent.VK_AT), HostKeyPress(KeyEvent.VK_COLON),
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scanColumn(HostKeyPress(KeyEvent.VK_ESCAPE), HostKeyPress(KeyEvent.VK_Q), HostKeyPress(KeyEvent.VK_ALT),
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HostKeyPress(KeyEvent.VK_PERIOD), HostKeyPress(KeyEvent.VK_MINUS), HostKeyPress(KeyEvent.VK_L),
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HostKeyPress(KeyEvent.VK_SPACE), HostKeyPress(KeyEvent.VK_2), HostKeyPress(KeyEvent.VK_CONTROL),
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HostKeyPress(KeyEvent.VK_P), HostKeyPress(KeyEvent.VK_PLUS))
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HostKeyPress(KeyEvent.VK_BACK_QUOTE), HostKeyPress(KeyEvent.VK_1))
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}
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}
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0b10111111 -> {
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else -> {
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// read column 6
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// invalid column selection
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scanColumn(HostKeyPress(KeyEvent.VK_SLASH), HostKeyPress(KeyEvent.VK_CIRCUMFLEX), HostKeyPress(KeyEvent.VK_EQUALS),
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0xff
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HostKeyPress(KeyEvent.VK_SHIFT, rightSide = true), // right shift
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HostKeyPress(KeyEvent.VK_HOME), HostKeyPress(KeyEvent.VK_SEMICOLON), HostKeyPress(KeyEvent.VK_ASTERISK),
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HostKeyPress(KeyEvent.VK_DEAD_TILDE) // pound sign
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)
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}
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0b01111111 -> {
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// read column 7
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scanColumn(HostKeyPress(KeyEvent.VK_ESCAPE), HostKeyPress(KeyEvent.VK_Q), HostKeyPress(KeyEvent.VK_ALT),
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HostKeyPress(KeyEvent.VK_SPACE), HostKeyPress(KeyEvent.VK_2), HostKeyPress(KeyEvent.VK_CONTROL),
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HostKeyPress(KeyEvent.VK_BACK_QUOTE), HostKeyPress(KeyEvent.VK_1))
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}
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else -> {
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// invalid column selection
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0xff
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}
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}
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}
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}
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}
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} else ramBuffer[register]
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}
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return when (register) {
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return when (register) {
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0x04 -> (timerAactual and 0xff).toShort()
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0x04 -> (timerAactual and 0xff).toShort()
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@ -224,19 +251,6 @@ class Cia(val number: Int, startAddress: Address, endAddress: Address, val cpu:
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}
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}
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}
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}
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private fun toBCD(data: Int): UByte {
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val tens = data/10
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val ones = data-tens*10
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return ((tens shl 4) or ones).toShort()
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}
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private fun fromBCD(bcd: UByte): Int {
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val ibcd = bcd.toInt()
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val tens = ibcd ushr 4
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val ones = ibcd and 0x0f
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return tens*10+ones
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}
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override operator fun set(offset: Int, data: UByte) {
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override operator fun set(offset: Int, data: UByte) {
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val register = offset and 15
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val register = offset and 15
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if (number == 1 && register == 0x00) {
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if (number == 1 && register == 0x00) {
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@ -296,6 +310,19 @@ class Cia(val number: Int, startAddress: Address, endAddress: Address, val cpu:
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}
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}
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}
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}
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private fun toBCD(data: Int): UByte {
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val tens = data/10
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val ones = data-tens*10
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return ((tens shl 4) or ones).toShort()
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}
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private fun fromBCD(bcd: UByte): Int {
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val ibcd = bcd.toInt()
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val tens = ibcd ushr 4
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val ones = ibcd and 0x0f
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return tens*10+ones
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}
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fun hostKeyPressed(event: KeyEvent) {
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fun hostKeyPressed(event: KeyEvent) {
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val rightSide = event.keyLocation == KeyEvent.KEY_LOCATION_RIGHT
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val rightSide = event.keyLocation == KeyEvent.KEY_LOCATION_RIGHT
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val numpad = event.keyLocation == KeyEvent.KEY_LOCATION_NUMPAD
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val numpad = event.keyLocation == KeyEvent.KEY_LOCATION_NUMPAD
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@ -374,4 +401,15 @@ class Cia(val number: Int, startAddress: Address, endAddress: Address, val cpu:
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}
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}
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}
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}
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}
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}
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fun setJoystick2(up: Boolean, down: Boolean, left: Boolean, right: Boolean, fire: Boolean) {
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if(number!=1)
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throw NotImplementedError("joystick port 2 is connected to cia#1")
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joy2up = up
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joy2down = down
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joy2left = left
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joy2right = right
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joy2fire = fire
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}
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}
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}
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@ -82,16 +82,50 @@ class MainC64Window(title: String, chargen: Rom, val ram: MemoryComponent, val c
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// keyboard events:
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// keyboard events:
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override fun keyTyped(event: KeyEvent) {}
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override fun keyTyped(event: KeyEvent) {}
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private var joy2up = false
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private var joy2down = false
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private var joy2left = false
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private var joy2right = false
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private var joy2fire = false
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override fun keyPressed(event: KeyEvent) {
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override fun keyPressed(event: KeyEvent) {
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// '\' is mapped as RESTORE, this causes a NMI on the cpu
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// '\' is mapped as RESTORE, this causes a NMI on the cpu
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if (event.keyChar == '\\') {
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if (event.keyChar == '\\') {
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cpu.nmiAsserted = true
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cpu.nmiAsserted = true
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} else {
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} else {
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keypressCia.hostKeyPressed(event)
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if(event.keyLocation==KeyEvent.KEY_LOCATION_NUMPAD) {
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// numpad is joystick #2
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if (event.keyChar in "789") joy2up = true
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if (event.keyChar in "123") joy2down = true
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if (event.keyChar in "741") joy2left = true
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if (event.keyChar in "963") joy2right = true
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if (event.keyChar in "05\n") joy2fire = true
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keypressCia.setJoystick2(joy2up, joy2down, joy2left, joy2right, joy2fire)
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} else {
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keypressCia.hostKeyPressed(event)
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}
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}
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}
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}
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}
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override fun keyReleased(event: KeyEvent) {
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override fun keyReleased(event: KeyEvent) {
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keypressCia.hostKeyPressed(event)
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if(event.keyLocation==KeyEvent.KEY_LOCATION_NUMPAD) {
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// numpad is joystick #2
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if (event.keyChar in "789") joy2up = false
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if (event.keyChar in "123") joy2down = false
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if (event.keyChar in "741") joy2left = false
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if (event.keyChar in "963") joy2right = false
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if (event.keyChar in "05\n") joy2fire = false
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keypressCia.setJoystick2(joy2up, joy2down, joy2left, joy2right, joy2fire)
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} else {
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keypressCia.hostKeyPressed(event)
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}
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}
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fun reset() {
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joy2up = false
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joy2down = false
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joy2left = false
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joy2right = false
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joy2fire = false
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}
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}
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}
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}
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@ -216,6 +216,11 @@ class C64Machine(title: String) : IVirtualMachine {
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while (cpu.instrCycles > 0) bus.clock()
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while (cpu.instrCycles > 0) bus.clock()
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}
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}
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override fun reset() {
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bus.reset()
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hostDisplay.reset()
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}
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override fun executeMonitorCommand(command: String) = monitor.command(command)
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override fun executeMonitorCommand(command: String) = monitor.command(command)
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fun start() {
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fun start() {
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@ -182,6 +182,7 @@ class DebugWindow(private val vm: IVirtualMachine) : JFrame("Debugger - ksim65 v
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}
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}
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"reset" -> {
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"reset" -> {
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vm.reset()
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vm.bus.reset()
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vm.bus.reset()
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updateCpu(vm.cpu, vm.bus)
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updateCpu(vm.cpu, vm.bus)
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}
|
}
|
||||||
|
|
|
@ -242,4 +242,8 @@ class MainWindow(title: String) : JFrame(title), KeyListener, MouseInputListener
|
||||||
else keyboardBuffer.pop()
|
else keyboardBuffer.pop()
|
||||||
}
|
}
|
||||||
|
|
||||||
|
fun reset() {
|
||||||
|
// when the reset button is pressed
|
||||||
|
}
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
|
@ -65,6 +65,11 @@ class VirtualMachine(title: String) : IVirtualMachine {
|
||||||
while (cpu.instrCycles > 0) bus.clock()
|
while (cpu.instrCycles > 0) bus.clock()
|
||||||
}
|
}
|
||||||
|
|
||||||
|
override fun reset() {
|
||||||
|
bus.reset()
|
||||||
|
hostDisplay.reset()
|
||||||
|
}
|
||||||
|
|
||||||
override fun executeMonitorCommand(command: String) = monitor.command(command)
|
override fun executeMonitorCommand(command: String) = monitor.command(command)
|
||||||
|
|
||||||
fun start() {
|
fun start() {
|
||||||
|
|
|
@ -7,6 +7,7 @@ import java.io.File
|
||||||
interface IVirtualMachine {
|
interface IVirtualMachine {
|
||||||
fun step()
|
fun step()
|
||||||
fun pause(paused: Boolean)
|
fun pause(paused: Boolean)
|
||||||
|
fun reset()
|
||||||
fun getZeroAndStackPages(): Array<UByte>
|
fun getZeroAndStackPages(): Array<UByte>
|
||||||
fun loadFileInRam(file: File, loadAddress: Address?)
|
fun loadFileInRam(file: File, loadAddress: Address?)
|
||||||
|
|
||||||
|
|
|
@ -1 +1 @@
|
||||||
version=1.8
|
version=1.9-dev
|
||||||
|
|
Loading…
Reference in New Issue