source/src/vm/ex80/keyboard.cpp

   1 /*
   2         TOSHIBA EX-80 Emulator 'eEX-80'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2015.12.10-
   6
   7         [ keyboard ]
   8 */
   9
  10 #include "keyboard.h"
  11 #include "../i8255.h"
  12
  13 void KEYBOARD::initialize()
  14 {
  15         column = 0xff;
  16         register_frame_event(this);
  17 }
  18
  19 void KEYBOARD::write_signal(int id, uint32_t data, uint32_t mask)
  20 {
  21         column = data & mask;
  22         event_frame();
  23 }
  24
  25 void KEYBOARD::event_frame()
  26 {
  27         const uint8_t* key_stat = emu->get_key_buffer();
  28         uint32_t val = 0xff;
  29
  30         if(!(column & 0x10)) {
  31                 if(key_stat[0x80] || key_stat[0x30] || key_stat[0x60]) val &= ~0x01;    // 0
  32                 if(key_stat[0x81] || key_stat[0x31] || key_stat[0x61]) val &= ~0x02;    // 1
  33                 if(key_stat[0x82] || key_stat[0x32] || key_stat[0x62]) val &= ~0x04;    // 2
  34                 if(key_stat[0x83] || key_stat[0x33] || key_stat[0x63]) val &= ~0x08;    // 3
  35                 if(key_stat[0x84] || key_stat[0x34] || key_stat[0x64]) val &= ~0x10;    // 4
  36                 if(key_stat[0x85] || key_stat[0x35] || key_stat[0x65]) val &= ~0x20;    // 5
  37                 if(key_stat[0x86] || key_stat[0x36] || key_stat[0x66]) val &= ~0x40;    // 6
  38                 if(key_stat[0x87] || key_stat[0x37] || key_stat[0x67]) val &= ~0x80;    // 7
  39         }
  40         if(!(column & 0x20)) {
  41                 if(key_stat[0x88] || key_stat[0x38] || key_stat[0x68]) val &= ~0x01;    // 8
  42                 if(key_stat[0x89] || key_stat[0x39] || key_stat[0x69]) val &= ~0x02;    // 9
  43                 if(key_stat[0x8a] || key_stat[0x41]                  ) val &= ~0x04;    // A
  44                 if(key_stat[0x8b] || key_stat[0x42]                  ) val &= ~0x08;    // B
  45                 if(key_stat[0x8c] || key_stat[0x43]                  ) val &= ~0x10;    // C
  46                 if(key_stat[0x8d] || key_stat[0x44]                  ) val &= ~0x20;    // D
  47                 if(key_stat[0x8e] || key_stat[0x45]                  ) val &= ~0x40;    // E
  48                 if(key_stat[0x8f] || key_stat[0x46]                  ) val &= ~0x80;    // F
  49         }
  50         if(!(column & 0x40)) {
  51                 if(key_stat[0x98] || key_stat[0x70]                  ) val &= ~0x02;    // RET ... F1
  52                 if(key_stat[0x99] || key_stat[0x71]                  ) val &= ~0x01;    // RUN ... F2
  53                 if(key_stat[0x9a] || key_stat[0x72]                  ) val &= ~0x40;    // SDA ... F3
  54                 if(key_stat[0x9b] || key_stat[0x73]                  ) val &= ~0x80;    // LDA ... F4
  55                 if(key_stat[0x9c] || key_stat[0x74]                  ) val &= ~0x04;    // ADR ... F5
  56                 if(key_stat[0x9d] || key_stat[0x75] || key_stat[0x21]) val &= ~0x10;    // RIC ... F6 or PgUp
  57                 if(key_stat[0x9e] || key_stat[0x76] || key_stat[0x22]) val &= ~0x08;    // RDC ... F7 or PgDn
  58                 if(key_stat[0x9f] || key_stat[0x77] || key_stat[0x0d]) val &= ~0x20;    // WIC ... F8 or Enter
  59         }
  60         d_pio->write_signal(SIG_I8255_PORT_A, val, 0xff);
  61 }
  62
  63 #define STATE_VERSION   1
  64
  65 bool KEYBOARD::process_state(FILEIO* state_fio, bool loading)
  66 {
  67         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
  68                 return false;
  69         }
  70         if(!state_fio->StateCheckInt32(this_device_id)) {
  71                 return false;
  72         }
  73         state_fio->StateUint32(column);
  74         return true;
  75 }