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142 lines
3.8 KiB
C
142 lines
3.8 KiB
C
/*
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* DOS interrupt 16h handler
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "config.h"
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#include "module.h"
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#include "console.h"
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#include "wincon.h"
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#include "debugtools.h"
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#include "winuser.h"
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#include "miscemu.h"
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DEFAULT_DEBUG_CHANNEL(int16)
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/**********************************************************************
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* INT_Int16Handler
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*
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* Handler for int 16h (keyboard)
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*
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* NOTE:
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*
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* KEYB.COM (DOS >3.2) adds functions to this interrupt, they are
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* not currently listed here.
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*/
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void WINAPI INT_Int16Handler( CONTEXT86 *context )
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{
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switch AH_reg(context) {
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case 0x00: /* Get Keystroke */
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/* Returns: AH = Scan code
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AL = ASCII character */
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TRACE("Get Keystroke\n");
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CONSOLE_GetKeystroke(&AH_reg(context), &AL_reg(context));
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break;
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case 0x01: /* Check for Keystroke */
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/* Returns: ZF set if no keystroke */
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/* AH = Scan code */
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/* AL = ASCII character */
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TRACE("Check for Keystroke\n");
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if (!CONSOLE_CheckForKeystroke(&AH_reg(context), &AL_reg(context)))
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{
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SET_ZFLAG(context);
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}
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else
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{
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RESET_ZFLAG(context);
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}
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break;
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case 0x02: /* Get Shift Flags */
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AL_reg(context) = 0;
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if (GetAsyncKeyState(VK_RSHIFT))
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AL_reg(context) |= 0x01;
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if (GetAsyncKeyState(VK_LSHIFT))
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AL_reg(context) |= 0x02;
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if (GetAsyncKeyState(VK_LCONTROL) || GetAsyncKeyState(VK_RCONTROL))
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AL_reg(context) |= 0x04;
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if (GetAsyncKeyState(VK_LMENU) || GetAsyncKeyState(VK_RMENU))
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AL_reg(context) |= 0x08;
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if (GetAsyncKeyState(VK_SCROLL))
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AL_reg(context) |= 0x10;
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if (GetAsyncKeyState(VK_NUMLOCK))
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AL_reg(context) |= 0x20;
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if (GetAsyncKeyState(VK_CAPITAL))
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AL_reg(context) |= 0x40;
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if (GetAsyncKeyState(VK_INSERT))
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AL_reg(context) |= 0x80;
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TRACE("Get Shift Flags: returning 0x%02x\n", AL_reg(context));
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break;
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case 0x03: /* Set Typematic Rate and Delay */
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FIXME("Set Typematic Rate and Delay - Not Supported\n");
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break;
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case 0x09: /* Get Keyboard Functionality */
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FIXME("Get Keyboard Functionality - Not Supported\n");
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/* As a temporary measure, say that "nothing" is supported... */
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AL_reg(context) = 0;
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break;
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case 0x0a: /* Get Keyboard ID */
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FIXME("Get Keyboard ID - Not Supported\n");
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break;
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case 0x10: /* Get Enhanced Keystroke */
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TRACE("Get Enhanced Keystroke - Partially supported\n");
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/* Returns: AH = Scan code
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AL = ASCII character */
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CONSOLE_GetKeystroke(&AH_reg(context), &AL_reg(context));
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break;
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case 0x11: /* Check for Enhanced Keystroke */
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/* Returns: ZF set if no keystroke */
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/* AH = Scan code */
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/* AL = ASCII character */
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TRACE("Check for Enhanced Keystroke - Partially supported\n");
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if (!CONSOLE_CheckForKeystroke(&AH_reg(context), &AL_reg(context)))
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{
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SET_ZFLAG(context);
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}
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else
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{
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RESET_ZFLAG(context);
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}
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break;
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case 0x12: /* Get Extended Shift States */
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FIXME("Get Extended Shift States - Not Supported\n");
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break;
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default:
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FIXME("Unknown INT 16 function - 0x%x\n", AH_reg(context));
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break;
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}
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}
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int WINAPI INT_Int16AddChar(BYTE ascii,BYTE scan)
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{
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BIOSDATA *data = DOSMEM_BiosData();
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WORD CurOfs = data->FirstKbdCharPtr;
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WORD NextOfs = CurOfs + 2;
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if (NextOfs >= data->KbdBufferEnd) NextOfs = data->KbdBufferStart;
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/* check if buffer is full */
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if (NextOfs == data->NextKbdCharPtr) return 0;
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/* okay, insert character in ring buffer */
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((BYTE*)data)[CurOfs] = ascii;
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((BYTE*)data)[CurOfs+1] = scan;
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data->FirstKbdCharPtr = NextOfs;
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return 1;
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}
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