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224 lines (203 loc) · 6.22 KB
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#include <stdio.h>
#include "keys64.h"
KEYS64::KEYS64()
{
}
KEYS64::~KEYS64()
{
}
/*
Write to VIA1 Port A ($DC00) row
Read from VIA1 Port B ($DC01) column
7 6 5 4 3 2 1 0
--------------------------------
7| STP / , N V X LSH CDN STP=RUN/STOP, LSH=Left SHIFT, CDN=CRSR-Down
|
6| Q UPA @ O U T E F5 UPA=Up Arrow
|
5| CBM = : K H F S F3 CBM=Commodore logo
|
4| SPC RSH . M B C Z F1 RSH=Right SHIFT
|
3| 2 HOM - 0 8 6 4 F7 HOM=CLR/HOME
|
2| CTL ; L J G D A CRT CTL=CTRL, CRT=CRSR-Right
|
1| LFA * P I Y R W RET LFA=Left Arrow, RET=RETURN
|
0| 1 BP + 9 7 5 3 DEL BP=British Pound
*/
unsigned char KEYS64::keyReadMatrixRow(unsigned int r)
{
const Uint8 *kbstate = SDL_GetKeyboardState(NULL);
unsigned char tmp;
if (kbstate[SDL_SCANCODE_LALT])
return 0xFF;
//for(int i = 0; i < 256; i++)
// if (kbstate[i]) fprintf(stderr, "Key pressed (%02X)\n", i);
switch (r) {
default:
case 0:
tmp = ~
((kbstate[SDL_SCANCODE_BACKSPACE]<<0)
|(kbstate[SDL_SCANCODE_RETURN]<<1)
|(kbstate[SDL_SCANCODE_KP_ENTER]<<1)
|((kbstate[SDL_SCANCODE_RIGHT] | kbstate[SDL_SCANCODE_LEFT])<<2)
|(kbstate[SDL_SCANCODE_F4]<<3)
|(kbstate[SDL_SCANCODE_F1]<<4)
|(kbstate[SDL_SCANCODE_F2]<<5)
|(kbstate[SDL_SCANCODE_F3]<<6)
|((kbstate[SDL_SCANCODE_DOWN]|kbstate[SDL_SCANCODE_UP])<<7));
break;
case 1:
tmp = ~
((kbstate[SDL_SCANCODE_3]<<0)
|(kbstate[SDL_SCANCODE_W]<<1)
|(kbstate[SDL_SCANCODE_A]<<2)
|(kbstate[SDL_SCANCODE_4]<<3)
|(kbstate[SDL_SCANCODE_Z]<<4)
|(kbstate[SDL_SCANCODE_S]<<5)
|(kbstate[SDL_SCANCODE_E]<<6)
|(kbstate[SDL_SCANCODE_LSHIFT]<<7));
break;
case 2:
tmp = ~
((kbstate[SDL_SCANCODE_5]<<0)
|(kbstate[SDL_SCANCODE_R]<<1)
|(kbstate[SDL_SCANCODE_D]<<2)
|(kbstate[SDL_SCANCODE_6]<<3)
|(kbstate[SDL_SCANCODE_C]<<4)
|(kbstate[SDL_SCANCODE_F]<<5)
|(kbstate[SDL_SCANCODE_T]<<6)
|(kbstate[SDL_SCANCODE_X]<<7));
break;
case 3:
tmp = ~
((kbstate[SDL_SCANCODE_7]<<0)
|(kbstate[SDL_SCANCODE_Y]<<1)
|(kbstate[SDL_SCANCODE_G]<<2)
|(kbstate[SDL_SCANCODE_8]<<3)
|(kbstate[SDL_SCANCODE_B]<<4)
|(kbstate[SDL_SCANCODE_H]<<5)
|(kbstate[SDL_SCANCODE_U]<<6)
|(kbstate[SDL_SCANCODE_V]<<7));
break;
case 4:
tmp = ~
((kbstate[SDL_SCANCODE_9]<<0)
|(kbstate[SDL_SCANCODE_I]<<1)
|(kbstate[SDL_SCANCODE_J]<<2)
|(kbstate[SDL_SCANCODE_0]<<3)
|(kbstate[SDL_SCANCODE_M]<<4)
|(kbstate[SDL_SCANCODE_K]<<5)
|(kbstate[SDL_SCANCODE_O]<<6)
|(kbstate[SDL_SCANCODE_N]<<7));
break;
case 5:
tmp = ~
((kbstate[SDL_SCANCODE_MINUS]<<0)
|(kbstate[SDL_SCANCODE_KP_PLUS]<<0) /* numeric + */
|(kbstate[SDL_SCANCODE_P]<<1)
|(kbstate[SDL_SCANCODE_L]<<2)
|(kbstate[SDL_SCANCODE_EQUALS]<<3)
|(kbstate[SDL_SCANCODE_PERIOD]<<4)
|(kbstate[SDL_SCANCODE_KP_PERIOD]<<4) /* numeric . */
|(kbstate[SDL_SCANCODE_SEMICOLON]<<5)
|(kbstate[SDL_SCANCODE_LEFTBRACKET]<<6)
|(kbstate[SDL_SCANCODE_KP_MINUS]<<6) /* numeric - */
|(kbstate[SDL_SCANCODE_COMMA]<<7));
break;
case 6:
tmp = ~
((kbstate[SDL_SCANCODE_INSERT]<<0)
|(kbstate[SDL_SCANCODE_RIGHTBRACKET]<<1)
|(kbstate[SDL_SCANCODE_KP_MULTIPLY]<<1)
|(kbstate[SDL_SCANCODE_APOSTROPHE]<<2)
|(kbstate[SDL_SCANCODE_HOME]<<3)
|(kbstate[SDL_SCANCODE_RSHIFT]<<4)
|(kbstate[SDL_SCANCODE_BACKSLASH]<<5)
|(kbstate[SDL_SCANCODE_END]<<6)
|(kbstate[SDL_SCANCODE_SLASH]<<7)
|(kbstate[SDL_SCANCODE_KP_DIVIDE]<<7)); /* numeric / */
if (kbstate[SDL_SCANCODE_LEFT] || kbstate[SDL_SCANCODE_UP])
tmp &= ~0x10;
break;
case 7:
tmp = ~
((kbstate[SDL_SCANCODE_1]<<0)
|(kbstate[SDL_SCANCODE_GRAVE]<<1)
|(kbstate[SDL_SCANCODE_RCTRL]<<2)
|(kbstate[SDL_SCANCODE_PRIOR]<<2)
|(kbstate[SDL_SCANCODE_2]<<3)
|(kbstate[SDL_SCANCODE_SPACE]<<4)
|(kbstate[SDL_SCANCODE_LCTRL]<<5)
|(kbstate[SDL_SCANCODE_Q]<<6)
|(kbstate[SDL_SCANCODE_TAB]<<7));
break;
}
return tmp | blockMask;
}
unsigned char KEYS64::feedkey(unsigned char rowselect)
{
unsigned char tmp = 0xFF;
if ((rowselect & 0x01)==0) tmp &= keyReadMatrixRow(0);
if ((rowselect & 0x02)==0) tmp &= keyReadMatrixRow(1);
if ((rowselect & 0x04)==0) tmp &= keyReadMatrixRow(2);
if ((rowselect & 0x08)==0) tmp &= keyReadMatrixRow(3);
if ((rowselect & 0x10)==0) tmp &= keyReadMatrixRow(4);
if ((rowselect & 0x20)==0) tmp &= keyReadMatrixRow(5);
if ((rowselect & 0x40)==0) tmp &= keyReadMatrixRow(6);
if ((rowselect & 0x80)==0) tmp &= keyReadMatrixRow(7);
return tmp & getJoyState(0);
}
unsigned char KEYS64::feedKeyColumn(unsigned char column)
{
unsigned char retval;
unsigned char tmp = ~(keyReadMatrixRow(0) | column);
retval = tmp ? 1 : 0;
tmp = ~(keyReadMatrixRow(1) | column);
retval |= tmp ? 2 : 0;
tmp = ~(keyReadMatrixRow(2) | column);
retval |= tmp ? 4 : 0;
tmp = ~(keyReadMatrixRow(3) | column);
retval |= tmp ? 8 : 0;
tmp = ~(keyReadMatrixRow(4) | column);
retval |= tmp ? 0x10 : 0;
tmp |= ~(keyReadMatrixRow(5) | column);
retval |= tmp ? 0x20 : 0;
tmp |= ~(keyReadMatrixRow(6) | column);
retval |= tmp ? 0x40 : 0;
tmp |= ~(keyReadMatrixRow(7) | column);
retval |= tmp ? 0x80 : 0;
return retval ^ 0xff;
}
unsigned char KEYS64::feedjoy()
{
const Uint8 *kbstate = SDL_GetKeyboardState(NULL);
unsigned char tmp = ~
((kbstate[joystickScanCodes[joystickScanCodeIndex][0]]<<0)
|(kbstate[SDL_SCANCODE_KP_7]<<0)
|(kbstate[SDL_SCANCODE_KP_9]<<0)
|(kbstate[joystickScanCodes[joystickScanCodeIndex][2]]<<1)
|(kbstate[SDL_SCANCODE_KP_1]<<1)
|(kbstate[SDL_SCANCODE_KP_3]<<1)
|(kbstate[joystickScanCodes[joystickScanCodeIndex][3]]<<2)
|(kbstate[SDL_SCANCODE_KP_7]<<2)
|(kbstate[SDL_SCANCODE_KP_1]<<2)
|(kbstate[joystickScanCodes[joystickScanCodeIndex][1]]<<3)
|(kbstate[SDL_SCANCODE_KP_3]<<3)
|(kbstate[SDL_SCANCODE_KP_9]<<3)
|(kbstate[joystickScanCodes[joystickScanCodeIndex][4]]<<4));
return tmp;
}
unsigned char KEYS64::getJoyState(unsigned int j)
{
unsigned char tmp = 0xFF;
if (activejoy & (j + 1)) {
tmp &= feedjoy();
}
const unsigned int pcJoyIx = activejoy >> 1;
if (sdlJoys[1 ^ pcJoyIx ^ j]) // FIXME
tmp &= getPcJoyState(1 ^ pcJoyIx ^ j, 0);
return tmp;
}