X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fjoystick.cpp;h=619a751df7490dec02c0a156e71201a1de1be441;hb=d1e404e2f488610a99f844783dca15a7525c3813;hp=91cfbbb0b661563c5c2caf3d77dbfd415ad9e4b1;hpb=69effddb777c2009d32f70e3315d5570973446ef;p=virtualjaguar diff --git a/src/joystick.cpp b/src/joystick.cpp index 91cfbbb..619a751 100644 --- a/src/joystick.cpp +++ b/src/joystick.cpp @@ -77,7 +77,6 @@ void JoystickDone(void) } -//uint8_t JoystickReadByte(uint32_t offset) uint16_t JoystickReadWord(uint32_t offset) { // E, D, B, 7 @@ -93,48 +92,6 @@ uint16_t JoystickReadWord(uint32_t offset) if (offset == 0) { -#if 0 - uint8_t data = 0x00; - int pad0Index = joystick_ram[1] & 0x0F; - int pad1Index = (joystick_ram[1] >> 4) & 0x0F; - -// This is bad--we're assuming that a bit is set in the last case. Might not be so! -// NOTE: values $7, B, D, & E are only legal ones for pad 0, (rows 3 to 0, in both cases) -// $E, D, B, & 7 are only legal ones for pad 1 -// So the following code is WRONG! (now fixed! ;-) -// Also: we should explicitly check for those bit patterns, as other patterns -// are legal and yield other controllers... !!! FIX !!! -#warning "!!! Need to explicitly check for the proper bit combinations! !!!" - - if (!(pad0Index & 0x01)) - pad0Index = 0; - else if (!(pad0Index & 0x02)) - pad0Index = 1; - else if (!(pad0Index & 0x04)) - pad0Index = 2; - else if (!(pad0Index & 0x08)) - pad0Index = 3; - - if (!(pad1Index & 0x01)) - pad1Index = 3; - else if (!(pad1Index & 0x02)) - pad1Index = 2; - else if (!(pad1Index & 0x04)) - pad1Index = 1; - else if (!(pad1Index & 0x08)) - pad1Index = 0; - - if (joypad0Buttons[(pad0Index << 2) + 0]) data |= 0x01; - if (joypad0Buttons[(pad0Index << 2) + 1]) data |= 0x02; - if (joypad0Buttons[(pad0Index << 2) + 2]) data |= 0x04; - if (joypad0Buttons[(pad0Index << 2) + 3]) data |= 0x08; - if (joypad1Buttons[(pad1Index << 2) + 0]) data |= 0x10; - if (joypad1Buttons[(pad1Index << 2) + 1]) data |= 0x20; - if (joypad1Buttons[(pad1Index << 2) + 2]) data |= 0x40; - if (joypad1Buttons[(pad1Index << 2) + 3]) data |= 0x80; - - return ~data; -#else if (!joysticksEnabled) return 0xFFFF; @@ -147,7 +104,7 @@ uint16_t JoystickReadWord(uint32_t offset) if (offset0 != 0xFF) { uint16_t mask[4] = { 0xFEFF, 0xFDFF, 0xFBFF, 0xF7FF }; -// uint16_t mask[4] = { 0xFFFE, 0xFFFD, 0xFFFB, 0xFFF7 }; +//No! uint16_t mask[4] = { 0xFFFE, 0xFFFD, 0xFFFB, 0xFFF7 }; for(uint8_t i=0; i<4; i++) data &= (joypad0Buttons[offset0 + i] ? mask[i] : 0xFFFF); @@ -156,16 +113,14 @@ uint16_t JoystickReadWord(uint32_t offset) if (offset1 != 0xFF) { uint16_t mask[4] = { 0xEFFF, 0xDFFF, 0xBFFF, 0x7FFF }; -// uint16_t mask[4] = { 0xFFEF, 0xFFDF, 0xFFBF, 0xFF7F }; +//No! uint16_t mask[4] = { 0xFFEF, 0xFFDF, 0xFFBF, 0xFF7F }; for(uint8_t i=0; i<4; i++) data &= (joypad1Buttons[offset1 + i] ? mask[i] : 0xFFFF); } return data; -#endif } -// else if (offset == 3) else if (offset == 2) { // Hardware ID returns NTSC/PAL identification bit here @@ -173,59 +128,7 @@ uint16_t JoystickReadWord(uint32_t offset) if (!joysticksEnabled) return data; -#if 0 - int pad0Index = joystick_ram[1] & 0x0F; - int pad1Index = (joystick_ram[1] >> 4) & 0x0F; - -//This is more stuff to add to the button reading, as the preceeding only -//yields 16 buttons... -#warning "!!! This reports TeamTap incorrectly when PAUSE pressed on controller #1 or #2 !!!" - if (!(pad0Index & 0x01)) - { - if (joypad0Buttons[BUTTON_PAUSE]) - data ^= 0x01; - if (joypad0Buttons[BUTTON_A]) - data ^= 0x02; - } - else if (!(pad0Index & 0x02)) - { - if (joypad0Buttons[BUTTON_B]) - data ^= 0x02; - } - else if (!(pad0Index & 0x04)) - { - if (joypad0Buttons[BUTTON_C]) - data ^= 0x02; - } - else if (!(pad0Index & 0x08)) - { - if (joypad0Buttons[BUTTON_OPTION]) - data ^= 0x02; - } - if (!(pad1Index & 0x08)) - { - if (joypad1Buttons[BUTTON_PAUSE]) - data ^= 0x04; - if (joypad1Buttons[BUTTON_A]) - data ^= 0x08; - } - else if (!(pad1Index & 0x04)) - { - if (joypad1Buttons[BUTTON_B]) - data ^= 0x08; - } - else if (!(pad1Index & 0x02)) - { - if (joypad1Buttons[BUTTON_C]) - data ^= 0x08; - } - else if (!(pad1Index & 0x01)) - { - if (joypad1Buttons[BUTTON_OPTION]) - data ^= 0x08; - } -#else // Joystick data returns active low for buttons pressed, high for non- // pressed. uint8_t offset0 = joypad0Offset[joystick_ram[1] & 0x0F] / 4; @@ -248,32 +151,14 @@ uint16_t JoystickReadWord(uint32_t offset) if (mask[offset1][1] != -1) data &= (joypad1Buttons[mask[offset1][1]] ? 0xFFFB : 0xFFFF); } -#endif return data; } -// return joystick_ram[offset]; return 0xFFFF; } -#if 0 -uint16_t JoystickReadWord(uint32_t offset) -{ - return ((uint16_t)JoystickReadByte((offset + 0) & 0x03) << 8) | JoystickReadByte((offset + 1) & 0x03); -} -#endif - - -#if 0 -void JoystickWriteByte(uint32_t offset, uint8_t data) -{ - joystick_ram[offset & 0x03] = data; -} -#endif - - void JoystickWriteWord(uint32_t offset, uint16_t data) { #warning "No bounds checking done for JoystickWriteWord!"