518 lines
18 KiB
C
518 lines
18 KiB
C
/*
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* BIOS interrupt 10h handler
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*/
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#include <stdlib.h>
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#include "miscemu.h"
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#include "vga.h"
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/* #define DEBUG_INT */
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#include "debug.h"
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#include "console.h"
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static int conv_text_mode_attribute_attribute(char attribute);
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static int conv_text_mode_attribute_fg_color(char attribute);
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static int conv_text_mode_attribute_bg_color(char attribute);
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static void write_char_attribute_at_cursor(char output, char page_num,
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char attribute, short times);
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static void scroll_window(int direction, char lines, char row1,
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char col1, char row2, char col2, char attribute);
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#define SCROLL_UP 1
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#define SCROLL_DOWN 2
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/**********************************************************************
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* INT_Int10Handler
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*
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* Handler for int 10h (video).
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*
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* NOTE:
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* Most INT 10 functions for text-mode, CGA, EGA, and VGA cards
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* are present in this list. (SVGA and XGA are not) That is not
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* to say that all these functions should be supported, but if
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* anyone is braindamaged enough to want to emulate one of these
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* beasts then this should get you started.
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*
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* NOTE:
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* Several common graphical extensions used by Microsoft hook
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* off of here. I have *not* added them to this list (yet). They
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* include:
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*
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* MSHERC.COM - More functionality for Hercules cards.
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* EGA.SYS (also MOUSE.COM) - More for EGA cards.
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*
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* Yes, MS also added this support into their mouse driver. Don't
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* ask me, I don't work for them.
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*
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* Joseph Pranevich - 9/98
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*/
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void WINAPI INT_Int10Handler( CONTEXT *context )
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{
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switch(AH_reg(context)) {
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case 0x00: /* SET VIDEO MODE */
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/* Text Modes: (can xterm or similar change text rows/cols?) */
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/* Answer: Yes. We can add that later. */
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/* Er, maybe. I thought resizeterm() did it, I was wrong. */
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/* (mode) (text rows/cols)
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0x00 - 40x25
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0x01 - 40x25
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0x02 - 80x25
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0x03 - 80x25 or 80x43 or 80x50
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0x07 - 80x25
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*/
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/* We may or may not want to do a refresh between the resize and
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the clear... */
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switch (AL_reg(context)) {
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case 0x00: /* 40x25 */
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case 0x01:
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VGA_Exit();
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TRACE(int10, "Set Video Mode - Set to Text - 0x0%x\n",
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AL_reg(context));
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CONSOLE_ResizeScreen(40, 25);
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CONSOLE_ClearScreen();
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break;
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case 0x02:
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case 0x03:
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case 0x07:
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VGA_Exit();
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TRACE(int10, "Set Video Mode - Set to Text - 0x0%x\n",
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AL_reg(context));
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CONSOLE_ResizeScreen(80, 25);
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CONSOLE_ClearScreen();
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break;
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case 0x13:
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TRACE(int10, "Setting VGA 320x200 256-color mode\n");
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VGA_SetMode(320,200,8);
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break;
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default:
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FIXME(int10, "Set Video Mode (0x%x) - Not Supported\n",
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AL_reg(context));
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}
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break;
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case 0x01: /* SET CURSOR SHAPE */
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FIXME(int10, "Set Cursor Shape - Not Supported\n");
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break;
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case 0x02: /* SET CURSOR POSITION */
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/* BH = Page Number */ /* Not supported */
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/* DH = Row */ /* 0 is left */
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/* DL = Column */ /* 0 is top */
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if (BH_reg(context))
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{
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FIXME(int10, "Set Cursor Position: Cannot set to page %d\n",
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BH_reg(context));
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}
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else
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{
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CONSOLE_MoveCursor(DH_reg(context), DL_reg(context));
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TRACE(int10, "Set Cursor Position: %d %d\n", DH_reg(context),
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DL_reg(context));
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}
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break;
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case 0x03: /* GET CURSOR POSITION AND SIZE */
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FIXME(int10, "Get Cursor Position and Size - Not Supported\n");
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CX_reg(context) = 0x0000; /* Bogus cursor data */
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DX_reg(context) = 0x0000;
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break;
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case 0x04: /* READ LIGHT PEN POSITION */
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FIXME(int10, "Read Light Pen Position - Not Supported\n");
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AH_reg(context) = 0x00; /* Not down */
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break;
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case 0x05: /* SELECT ACTIVE DISPLAY PAGE */
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FIXME(int10, "Select Active Display Page - Not Supported\n");
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break;
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case 0x06: /* SCROLL UP WINDOW */
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/* AL = Lines to scroll */
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/* BH = Attribute */
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/* CH,CL = row, col upper-left */
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/* DH,DL = row, col lower-right */
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scroll_window(SCROLL_UP, AL_reg(context), CH_reg(context),
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CL_reg(context), DH_reg(context), DL_reg(context),
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BH_reg(context));
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TRACE(int10, "Scroll Up Window %d\n", AL_reg(context));
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break;
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case 0x07: /* SCROLL DOWN WINDOW */
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/* AL = Lines to scroll */
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/* BH = Attribute */
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/* CH,CL = row, col upper-left */
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/* DH,DL = row, col lower-right */
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scroll_window(SCROLL_DOWN, AL_reg(context), CH_reg(context),
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CL_reg(context), DH_reg(context), DL_reg(context),
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BH_reg(context));
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TRACE(int10, "Scroll Down Window %d\n", AL_reg(context));
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break;
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case 0x08: /* READ CHARACTER AND ATTRIBUTE AT CURSOR POSITION */
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FIXME(int10,
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"Read Character and Attribute at Cursor Position - Not Supported\n");
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break;
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case 0x09: /* WRITE CHARACTER AND ATTRIBUTE AT CURSOR POSITION */
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/* AL = Character to display. */
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/* BH = Page Number */ /* We can't write to non-0 pages, yet. */
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/* BL = Attribute / Color */
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/* CX = Times to Write Char */
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/* !NOTE!: It appears as if the cursor is not advanced if CX > 1 */
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write_char_attribute_at_cursor(AL_reg(context), BH_reg(context),
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BL_reg(context), CX_reg(context));
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if (CX_reg(context) > 1)
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TRACE(int10, "Write Character and Attribute at Cursor Position "
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"(Rep. %d) %c\n", CX_reg(context), AL_reg(context));
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else
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TRACE(int10, "Write Character and Attribute at Cursor"
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"Position: %c\n", AL_reg(context));
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break;
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case 0x0a: /* WRITE CHARACTER ONLY AT CURSOR POSITION */
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/* AL = Character to display. */
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/* BH = Page Number */ /* We can't write to non-0 pages, yet. */
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/* CX = Times to Write Char */
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TRACE(int10, "Write Character at Cursor\n");
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write_char_attribute_at_cursor(AL_reg(context), BH_reg(context),
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0, CX_reg(context));
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break;
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case 0x0b:
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switch BH_reg(context) {
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case 0x00: /* SET BACKGROUND/BORDER COLOR */
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FIXME(int10, "Set Background/Border Color - Not Supported\n");
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break;
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case 0x01: /* SET PALETTE */
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FIXME(int10, "Set Palette - Not Supported\n");
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break;
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default:
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FIXME(int10, "INT 10 AH = 0x0b BH = 0x%x - Unknown\n",
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BH_reg(context));
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break;
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}
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break;
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case 0x0c: /* WRITE GRAPHICS PIXEL */
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/* Not in graphics mode, can ignore w/o error */
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FIXME(int10, "Write Graphics Pixel - Not Supported\n");
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break;
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case 0x0d: /* READ GRAPHICS PIXEL */
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/* Not in graphics mode, can ignore w/o error */
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FIXME(int10, "Read Graphics Pixel - Not Supported\n");
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break;
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case 0x0e: /* TELETYPE OUTPUT */
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TRACE(int10, "Teletype Output\n");
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CONSOLE_Write(AL_reg(context), 0, 0, 0);
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break;
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case 0x0f: /* GET CURRENT VIDEO MODE */
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TRACE(int10, "Get Current Video Mode (0x0%x)\n", AL_reg(context));
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/* Note: This should not be a constant value. */
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AL_reg(context) = 0x07; /* 80x25 text mode */
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AH_reg(context) = 80; /* 80 columns */
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BH_reg(context) = 0; /* Display page 0 */
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break;
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case 0x10:
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switch AL_reg(context) {
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case 0x00: /* SET SINGLE PALETTE REGISTER */
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FIXME(int10, "Set Single Palette Register - Not Supported\n");
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break;
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case 0x01: /* SET BORDER (OVERSCAN) */
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/* Text terminals have no overscan */
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TRACE(int10, "Set Border (Overscan) - Ignored\n");
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break;
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case 0x02: /* SET ALL PALETTE REGISTERS */
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FIXME(int10, "Set all palette registers - Not Supported\n");
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break;
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case 0x03: /* TOGGLE INTENSITY/BLINKING BIT */
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FIXME(int10, "Toggle Intensity/Blinking Bit - Not Supported\n");
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break;
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case 0x07: /* GET INDIVIDUAL PALETTE REGISTER */
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FIXME(int10, "Get Individual Palette Register - Not Supported\n");
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break;
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case 0x08: /* READ OVERSCAN (BORDER COLOR) REGISTER */
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FIXME(int10,
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"Read Overscan (Border Color) Register - Not Supported\n");
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break;
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case 0x09: /* READ ALL PALETTE REGISTERS AND OVERSCAN REGISTER */
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FIXME(int10,
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"Read All Palette Registers and Overscan Register "
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" - Not Supported\n");
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break;
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case 0x10: /* SET INDIVIDUAL DAC REGISTER */
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FIXME(int10, "Set Individual DAC register - Not Supported\n");
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break;
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case 0x12: /* SET BLOCK OF DAC REGISTERS */
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FIXME(int10, "Set Block of DAC registers - Not Supported\n");
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break;
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case 0x13: /* SELECT VIDEO DAC COLOR PAGE */
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FIXME(int10, "Select video DAC color page - Not Supported\n");
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break;
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case 0x15: /* READ INDIVIDUAL DAC REGISTER */
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FIXME(int10, "Read individual DAC register - Not Supported\n");
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break;
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case 0x17: /* READ BLOCK OF DAC REGISTERS */
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FIXME(int10, "Read block of DAC registers - Not Supported\n");
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break;
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case 0x18: /* SET PEL MASK */
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FIXME(int10, "Set PEL mask - Not Supported\n");
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break;
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case 0x19: /* READ PEL MASK */
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FIXME(int10, "Read PEL mask - Not Supported\n");
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break;
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case 0x1a: /* GET VIDEO DAC COLOR PAGE STATE */
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FIXME(int10, "Get video DAC color page state - Not Supported\n");
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break;
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case 0x1b: /* PERFORM GRAY-SCALE SUMMING */
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FIXME(int10, "Perform Gray-scale summing - Not Supported\n");
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break;
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default:
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FIXME(int10, "INT 10 AH = 0x10 AL = 0x%x - Unknown\n",
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AL_reg(context));
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break;
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}
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break;
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case 0x11: /* TEXT MODE CHARGEN */
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/* Note that second subfunction is *almost* identical. */
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/* See INTERRUPT.A for details. */
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switch AH_reg(context) {
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case 0x00: /* LOAD USER SPECIFIED PATTERNS */
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case 0x10:
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FIXME(int10, "Load User Specified Patterns - Not Supported\n");
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break;
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case 0x01: /* LOAD ROM MONOCHROME PATTERNS */
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case 0x11:
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FIXME(int10, "Load ROM Monochrome Patterns - Not Supported\n");
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break;
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case 0x02: /* LOAD ROM 8x8 DOUBLE-DOT PATTERNS */
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case 0x12:
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FIXME(int10,
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"Load ROM 8x8 Double Dot Patterns - Not Supported\n");
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break;
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case 0x03: /* SET BLOCK SPECIFIER */
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FIXME(int10, "Set Block Specifier - Not Supported\n");
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break;
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case 0x04: /* LOAD ROM 8x16 CHARACTER SET */
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case 0x14:
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FIXME(int10, "Load ROM 8x16 Character Set - Not Supported\n");
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break;
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case 0x20: /* SET USER 8x16 GRAPHICS CHARS */
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FIXME(int10, "Set User 8x16 Graphics Chars - Not Supported\n");
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break;
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case 0x21: /* SET USER GRAPICS CHARACTERS */
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FIXME(int10, "Set User Graphics Characters - Not Supported\n");
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break;
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case 0x22: /* SET ROM 8x14 GRAPHICS CHARS */
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FIXME(int10, "Set ROM 8x14 Graphics Chars - Not Supported\n");
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break;
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case 0x23: /* SET ROM 8x8 DBL DOT CHARS */
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FIXME(int10,
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"Set ROM 8x8 Dbl Dot Chars (Graphics) - Not Supported\n");
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break;
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case 0x24: /* LOAD 8x16 GRAPHIC CHARS */
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FIXME(int10, "Load 8x16 Graphic Chars - Not Supported\n");
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break;
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case 0x30: /* GET FONT INFORMATION */
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FIXME(int10, "Get Font Information - Not Supported\n");
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break;
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default:
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FIXME(int10, "INT 10 AH = 0x11 AL = 0x%x - Unknown\n",
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AL_reg(context));
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break;
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}
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break;
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case 0x12: /* ALTERNATE FUNCTION SELECT */
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switch BL_reg(context) {
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case 0x10: /* GET EGA INFO */
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TRACE(int10, "EGA Info Requested\n");
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BX_reg(context) = 0x0003;
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CX_reg(context) = 0x0009;
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break;
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case 0x20: /* ALTERNATE PRTSC */
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FIXME(int10, "Install Alternate Print Screen - Not Supported\n");
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break;
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case 0x30: /* SELECT VERTICAL RESOULTION */
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FIXME(int10, "Select Vertical Resoultion - Not Supported\n");
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break;
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case 0x31: /* ENABLE/DISABLE PALETTE LOADING */
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FIXME(int10, "Palette Loading - Not Supported\n");
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break;
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case 0x32: /* ENABLE/DISABLE VIDEO ADDRERSSING */
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FIXME(int10, "Video Addressing - Not Supported\n");
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break;
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case 0x33: /* ENABLE/DISABLE GRAY SCALE SUMMING */
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FIXME(int10, "Gray Scale Summing - Not Supported\n");
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break;
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case 0x34: /* ENABLE/DISABLE CURSOR EMULATION */
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FIXME(int10, "Cursor Emulation - Not Supported\n");
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break;
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case 0x36: /* VIDEO ADDRESS CONTROL */
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FIXME(int10, "Video Address Control - Not Supported\n");
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break;
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default:
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FIXME(int10, "INT 10 AH = 0x11 AL = 0x%x - Unknown\n",
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AL_reg(context));
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break;
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}
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break;
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case 0x13: /* WRITE STRING */
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/* This one does not imply that string be at cursor. */
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FIXME(int10, "Write String - Not Supported\n");
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break;
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case 0x1a:
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switch AL_reg(context) {
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case 0x00: /* GET DISPLAY COMBINATION CODE */
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TRACE(int10, "Get Display Combination Code\n");
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/* Why are we saying this? */
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/* Do we need to check if we are in a windows or text app? */
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BX_reg(context) = 0x0008; /* VGA w/ color analog display */
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break;
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case 0x01: /* SET DISPLAY COMBINATION CODE */
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FIXME(int10, "Set Display Combination Code - Not Supported\n");
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break;
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default:
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FIXME(int10, "INT 10 AH = 0x1a AL = 0x%x - Unknown\n",
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AL_reg(context));
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break;
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}
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break;
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case 0x1b: /* FUNCTIONALITY/STATE INFORMATION */
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FIXME(int10, "Get Functionality/State Information - Not Supported\n");
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break;
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case 0x1c: /* SAVE/RESTORE VIDEO STATE */
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FIXME(int10, "Save/Restore Video State - Not Supported\n");
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break;
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default:
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FIXME(int10, "Unknown - 0x%x\n", AH_reg(context));
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INT_BARF( context, 0x10 );
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}
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}
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static void write_char_attribute_at_cursor(char output, char page_num,
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char attribute, short times)
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{
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/* !NOTE!: */
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/* It appears that the cursor should not be advanced if times > 1 */
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/* I will triple check this later but bzork.exe definately points this */
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/* way */
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int wattribute, fg_color, bg_color;
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char x, y;
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int must_reset = 0;
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if (page_num) /* Only support one text page right now */
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{
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FIXME(int10, "Cannot write to alternate page %d", page_num);
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return;
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}
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wattribute = conv_text_mode_attribute_attribute(attribute);
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fg_color = conv_text_mode_attribute_fg_color(attribute);
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bg_color = conv_text_mode_attribute_bg_color(attribute);
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if (times > 1)
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{
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must_reset = 1;
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CONSOLE_GetCursorPosition(&x, &y);
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}
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while (times)
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{
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CONSOLE_Write(output, fg_color, bg_color, attribute);
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times--;
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}
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if (must_reset)
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CONSOLE_MoveCursor(x, y);
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}
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static int conv_text_mode_attribute_fg_color(char attribute)
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{
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/* This is a local function to convert the color values
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in text-mode attributes to Wine's scheme */
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/* Foreground Color is stored in bits 3 through 0 */
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/* Colors:
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0000b black 1000b dark gray
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0001b blue 1001b light blue
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0010b green 1010b light green
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0011b cyan 1011b light cyan
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0100b red 1100b light red
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0101b magenta 1101b light magenta
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0110b brown 1110b yellow
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0111b light gray 1111b white
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*/
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/* FIXME - We need color values for those and some generic constants */
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return 0; /* Bogus, temporary data. */
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}
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static int conv_text_mode_attribute_bg_color(char attribute)
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{
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/* This is a local function to convert the color values
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in text-mode attributes to Wine's scheme */
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/* Background Color is stored in bits 6 through 4 */
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/* Colors same as above, but only the left column */
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/* FIXME - We need color values for those and some generic constants */
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return 0; /* Bogus, temporary data. */
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}
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static int conv_text_mode_attribute_attribute(char attribute)
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{
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/* This is a local function to convert the attribute values
|
|
in text-mode attributes to Wine's scheme */
|
|
|
|
/* If this has bit 7 set, then we need to blink */
|
|
|
|
if (255 && attribute)
|
|
{
|
|
/* return TEXT_ATTRIBUTE_BLINK; */
|
|
}
|
|
|
|
return 0; /* Bogus data */
|
|
}
|
|
|
|
static void scroll_window(int direction, char lines, char row1,
|
|
char col1, char row2, char col2, char attribute)
|
|
{
|
|
int wattribute, bg_color;
|
|
|
|
wattribute = conv_text_mode_attribute_attribute(attribute);
|
|
bg_color = conv_text_mode_attribute_bg_color(attribute);
|
|
|
|
if (!lines) /* Actually, clear the window */
|
|
{
|
|
CONSOLE_ClearWindow(row1, col1, row2, col2, bg_color, wattribute);
|
|
}
|
|
else if (direction == SCROLL_UP)
|
|
{
|
|
CONSOLE_ScrollUpWindow(row1, col1, row2, col2, lines, bg_color,
|
|
wattribute);
|
|
}
|
|
else
|
|
{
|
|
CONSOLE_ScrollDownWindow(row1, col1, row2, col2, lines, bg_color,
|
|
wattribute);
|
|
}
|
|
}
|
|
|