mirror of
https://github.com/reactos/reactos.git
synced 2025-04-05 21:21:33 +00:00
Video mode switching when entering pice shell.
svn path=/trunk/; revision=3165
This commit is contained in:
Eugene Ingerman
parent
d01d6a21a7
commit
994b70bb48
3 changed files with 947 additions and 121 deletions
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@ -27,6 +27,7 @@ TARGET_OBJECTS = \
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syscall.o \
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trace.o \
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vga.o \
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vga_utils.o \
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utils.o
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include $(PATH_TO_TOP)/rules.mak
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@ -17,6 +17,7 @@ Environment:
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Author:
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Klaus P. Gerlicher
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Reactos Port by Eugene Ingerman
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Revision History:
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@ -42,41 +43,70 @@ Copyright notice:
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////////////////////////////////////////////////////
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// PROTOTYPES
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////
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extern void pice_save_current_registers(void);
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extern void pice_restore_current_registers(void);
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extern void pice_set_mode_3_80x50(void);
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extern void pice_set_mode_3_80x25(void);
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extern UCHAR cGraphTable[8*256];
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// storage for original VGA font
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UCHAR cGraphTable2[16*256];
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////////////////////////////////////////////////////
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// DEFINES
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////
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#define LOCAL_CONSOLE // undefine this to get text only hercules version
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#define VGA_EXTENDED // define this for 80x50 console mode
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#ifndef VGA_EXTENDED
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#define SCREEN_BUFFER_SIZE (80*25*2)
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#else
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#define SCREEN_BUFFER_SIZE (80*50*2)
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#endif
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/* Port addresses of control regs */
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#define MISCOUTPUT 0x3c2
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#define FEATURECONTROL 0x3da
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#define SEQUENCER 0x3c4
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#define CRTC 0x03d4
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#define GRAPHICS 0x3ce
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#define ATTRIBS 0x03c0
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#define PELADDRESSWRITE 0x3c8
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#define PELDATAREG 0x3c9
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/* Number of regs on the various controllers */
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#define MAXSEQ 5
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#define MAXCRTC 0x19
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#define MAXGRAPH 0x9
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#define MAXATTRIB 0x015
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////////////////////////////////////////////////////
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// GLOBALS
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////
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// used for HERCUELS text and VGA text mode
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/*
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// used for HERCULES text and VGA text mode
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WINDOW wWindowVga[4]=
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#ifndef VGA_EXTENDED
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{
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{1,3,1,0,FALSE},
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{5,4,1,0,FALSE},
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{10,9,1,0,FALSE},
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{20,4,1,0,FALSE}
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};
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*/
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WINDOW wWindowVga[4]=
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#else // VGA_EXTENDED
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{
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{1,3,1,0,FALSE},
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{5,7,1,0,FALSE},
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{14,15,1,0,FALSE},
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{30,14,1,0,FALSE}
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{5,4,1,0,FALSE},
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{10,24,1,0,FALSE},
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{35,14,1,0,FALSE}
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};
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// 25 line text mode
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UCHAR MGATable25[]={97,80,82,15,25, 6,25,25, 2,13,11,12, 0, 0, 0, 0};
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#endif // VGA_EXTENDED
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PUCHAR pScreenBufferVga;
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PUCHAR pScreenBufferSaveVga = NULL;
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PUCHAR pScreenBufferTempVga;
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PUCHAR pScreenBufferHardwareVga;
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PUCHAR pFontBufferVga = NULL;
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UCHAR offset_a = 0;
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UCHAR offset_c = 0,offset_d = 0;
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@ -97,6 +127,115 @@ struct _attr
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}u;
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}attr;
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unsigned char oldgraphicsmode;
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unsigned char oldgraphicsmisc;
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unsigned char oldsqregmapmask;
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unsigned char oldsqregmemory;
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unsigned char oldgraphicssetresetenable;
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unsigned char oldgraphicsreadmapsel;
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unsigned char read_vga_reg(int port, int reg)
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{
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outportb(port,reg);
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return(inportb(port+1));
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}
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void write_vga_reg(int port, unsigned char reg, unsigned char value)
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{
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outportb(port,reg);
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outportb(port+1,value);
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}
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/* Registers within controllers */
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#define VREND 0x11
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#define GRREGSETRESET 0
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#define GRREGENABLESETRESET 1
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#define GRREGREADMAPSEL 4
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#define SQREGMAPMASK 2
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#define SQREGMEMORY 4
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#define GRREGWRMODE 5
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#define GRREGMISC 6
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void map_font_memory(void)
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{
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oldgraphicssetresetenable = read_vga_reg(GRAPHICS, GRREGENABLESETRESET);
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oldgraphicsmode = read_vga_reg(GRAPHICS, GRREGWRMODE);
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oldgraphicsmisc = read_vga_reg(GRAPHICS, GRREGMISC);
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oldgraphicsreadmapsel = read_vga_reg(GRAPHICS, GRREGREADMAPSEL);
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oldsqregmapmask = read_vga_reg(SEQUENCER, SQREGMAPMASK);
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oldsqregmemory = read_vga_reg(SEQUENCER, SQREGMEMORY);
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/* Make sure set/reset enable is off */
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write_vga_reg(GRAPHICS,GRREGENABLESETRESET,0);
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/* Select read plane 2 */
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write_vga_reg(GRAPHICS,GRREGREADMAPSEL,0x02);
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/* Make sure write and read mode = 0 */
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write_vga_reg(GRAPHICS,GRREGWRMODE,0x00);
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/* Set mapping to 64K at a000:0 & turn off odd/even at the graphics reg */
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write_vga_reg(GRAPHICS,GRREGMISC, 0x04);
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/* Set sequencer plane to 2 */
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write_vga_reg(SEQUENCER,SQREGMAPMASK, 0x04);
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/* Turn off odd/even at the sequencer */
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write_vga_reg(SEQUENCER,SQREGMEMORY, 0x07);
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}
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void unmap_font_memory(void)
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{
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write_vga_reg(GRAPHICS,GRREGENABLESETRESET,oldgraphicssetresetenable);
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write_vga_reg(GRAPHICS,GRREGWRMODE,oldgraphicsmode);
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write_vga_reg(GRAPHICS,GRREGREADMAPSEL,oldgraphicsreadmapsel);
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write_vga_reg(GRAPHICS,GRREGMISC, oldgraphicsmisc);
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write_vga_reg(SEQUENCER,SQREGMAPMASK, oldsqregmapmask);
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write_vga_reg(SEQUENCER,SQREGMEMORY, oldsqregmemory);
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}
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/* Font and palette constants */
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#define BYTESPERFONT 8
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#define FONTENTRIES 256
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#define FONTBUFFERSIZE 8192
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void save_font(UCHAR* graph_table)
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{
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PUCHAR FontBase = pFontBufferVga;
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int i,j;
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map_font_memory();
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for (i=0; i < FONTENTRIES; i++)
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for (j=0; j < 16; j++)
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graph_table[i*16+j] = FontBase[i*32+j];
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unmap_font_memory();
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}
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void load_font(UCHAR* graph_table,int bEnter)
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{
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PUCHAR FontBase = pFontBufferVga;
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int i,j;
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map_font_memory();
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if(bEnter)
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{
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#ifdef VGA_EXTENDED
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for (i=0; i < FONTENTRIES; i++)
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for (j=0; j < 8; j++)
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FontBase[i*32+j] = graph_table[i*BYTESPERFONT+j];
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#else // VGA_EXTENDED
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for (i=0; i < FONTENTRIES; i++)
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for (j=0; j < 16; j++)
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FontBase[i*32+j] = graph_table[i*BYTESPERFONT+(j/2)] << (j&1);
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#endif // VGA_EXTENDED
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}
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else
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{
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for (i=0; i < FONTENTRIES; i++)
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for (j=0; j < 16; j++)
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FontBase[i*32+j] = graph_table[i*16+j];
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}
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unmap_font_memory();
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}
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//*************************************************************************
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// SetForegroundColorVga()
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//
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@ -137,13 +276,8 @@ void ShowCursorVga(void)
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bCursorEnabled=TRUE;
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#ifdef LOCAL_CONSOLE
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outb_p(0x0a,0x3d4);
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outb_p(inb_p(0x3d5)&~0x20,0x3d5);
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#else
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outb_p(0x0a,0x3b4);
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outb_p(inb_p(0x3b5)&~0x20,0x3b5);
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#endif
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LEAVE_FUNC();
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}
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@ -158,13 +292,8 @@ void HideCursorVga(void)
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ENTER_FUNC();
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bCursorEnabled=FALSE;
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#ifdef LOCAL_CONSOLE
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outb_p(0x0a,0x3d4);
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outb_p(inb_p(0x3d5)|0x20,0x3d5);
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#else
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outb_p(0x0a,0x3b4);
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outb_p(inb_p(0x3b5)|0x20,0x3b5);
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#endif
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LEAVE_FUNC();
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}
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@ -176,13 +305,11 @@ void HideCursorVga(void)
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//*************************************************************************
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void CopyLineToVga(USHORT dest,USHORT src)
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{
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USHORT i;
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PUSHORT p = (PUSHORT)pScreenBufferVga;
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ENTER_FUNC();
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for(i=0;i<GLOBAL_SCREEN_WIDTH;i++)
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p[dest*GLOBAL_SCREEN_WIDTH+i] = p[src*GLOBAL_SCREEN_WIDTH+i];
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PICE_memcpy(&p[dest*GLOBAL_SCREEN_WIDTH],&p[src*GLOBAL_SCREEN_WIDTH],GLOBAL_SCREEN_WIDTH*sizeof(USHORT));
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LEAVE_FUNC();
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}
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@ -196,22 +323,15 @@ void InvertLineVga(ULONG line)
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{
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ULONG i;
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PUSHORT p = (PUSHORT)pScreenBufferVga;
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#ifdef LOCAL_CONSOLE
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USHORT attr;
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#endif
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if(line<25)
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if(line < GLOBAL_SCREEN_HEIGHT)
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{
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#ifdef LOCAL_CONSOLE
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attr = p[line*GLOBAL_SCREEN_WIDTH]>>8;
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attr = ((attr & 0x07)<<4) | ((attr & 0xF0)>>4);
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attr <<= 8;
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for(i=0;i<GLOBAL_SCREEN_WIDTH;i++)
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p[line*GLOBAL_SCREEN_WIDTH + i] = (p[line*GLOBAL_SCREEN_WIDTH + i] & 0x00FF) | attr;
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#else
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for(i=0;i<GLOBAL_SCREEN_WIDTH;i++)
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p[line*GLOBAL_SCREEN_WIDTH + i] = p[line*GLOBAL_SCREEN_WIDTH + i] ^ 0xFF00;
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#endif
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}
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}
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@ -225,7 +345,7 @@ void HatchLineVga(ULONG line)
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ULONG i;
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PUSHORT p = (PUSHORT)pScreenBufferVga;
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if(line<GLOBAL_SCREEN_HEIGHT)
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if(line < GLOBAL_SCREEN_HEIGHT)
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{
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for(i=0;i<GLOBAL_SCREEN_WIDTH;i++)
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p[line*GLOBAL_SCREEN_WIDTH + i] = (p[line*GLOBAL_SCREEN_WIDTH + i] & 0xF0FF) | 0x0c00;
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@ -242,7 +362,7 @@ void ClrLineVga(ULONG line)
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ULONG i;
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PUSHORT p = (PUSHORT)pScreenBufferVga;
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if(line<GLOBAL_SCREEN_HEIGHT)
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if(line < GLOBAL_SCREEN_HEIGHT)
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{
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for(i=0;i<GLOBAL_SCREEN_WIDTH;i++)
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p[line*GLOBAL_SCREEN_WIDTH + i] = (USHORT)((attr.u.Asuchar<<8) | 0x20);
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@ -276,15 +396,6 @@ void PrintCursorVga(BOOLEAN bForce)
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charoffset = (y* GLOBAL_SCREEN_WIDTH + x);
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#ifndef LOCAL_CONSOLE
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outb_p(0x0e,0x3b4);
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data=(UCHAR)((charoffset>>8)&0xFF);
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outb_p(data,0x3b5);
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outb_p(0x0d,0x3b4);
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data=(UCHAR)(charoffset & 0xFF);
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outb_p(data,0x3b5);
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#else
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outb_p(0x0e,0x3d4);
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data=(UCHAR)((charoffset>>8)&0xFF);
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outb_p(data,0x3d5);
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@ -292,7 +403,6 @@ void PrintCursorVga(BOOLEAN bForce)
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outb_p(0x0f,0x3d4);
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data=(UCHAR)(charoffset & 0xFF);
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outb_p(data,0x3d5);
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#endif
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}
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}
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@ -302,33 +412,37 @@ void PrintCursorVga(BOOLEAN bForce)
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//*************************************************************************
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void SaveGraphicsStateVga(void)
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{
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#ifdef LOCAL_CONSOLE
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// copy the screen content to temp area
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PICE_memcpy(pScreenBufferTempVga,pScreenBufferHardwareVga,FRAMEBUFFER_SIZE);
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UCHAR data;
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// save current regs
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pice_save_current_registers();
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// unprotect crtc regs 0-7
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outb_p(0x11,0x3d4);
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data = inb_p(0x3d5);
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outb_p(data & 0x7F,0x3d5);
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// save current font
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save_font(cGraphTable2);
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// restore original regs
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#ifdef VGA_EXTENDED
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pice_set_mode_3_80x50();
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#else
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pice_set_mode_3_80x25();
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#endif
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// load a font
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load_font(cGraphTable,1);
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// copy the screen content to temp area
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PICE_memcpy(pScreenBufferTempVga,pScreenBufferHardwareVga,SCREEN_BUFFER_SIZE);
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// copy the console to the screen
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PICE_memcpy(pScreenBufferHardwareVga,pScreenBufferVga,FRAMEBUFFER_SIZE);
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PICE_memcpy(pScreenBufferHardwareVga,pScreenBufferVga,SCREEN_BUFFER_SIZE);
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// save original pointer
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pScreenBufferSaveVga = pScreenBufferVga;
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// pScreenBufferVga now points to screen
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pScreenBufferVga = pScreenBufferHardwareVga;
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// save video RAM start address
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outb_p(0xc,0x3d4);
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offset_c = inb_p(0x3d5);
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outb_p(0x0,0x3d5);
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outb_p(0xd,0x3d4);
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offset_d = inb_p(0x3d5);
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outb_p(0x0,0x3d5);
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// cursor state
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outb_p(0x0a,0x3d4);
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offset_a = inb_p(0x3d5);
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// cursor position
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outb_p(0x0e,0x3d4);
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offset_e = inb_p(0x3d5);
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outb_p(0x0f,0x3d4);
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offset_f = inb_p(0x3d5);
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#endif
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}
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//*************************************************************************
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@ -337,28 +451,24 @@ void SaveGraphicsStateVga(void)
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//*************************************************************************
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void RestoreGraphicsStateVga(void)
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{
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#ifdef LOCAL_CONSOLE
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UCHAR data;
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// unprotect crtc regs 0-7
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outb_p(0x11,0x3d4);
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data = inb_p(0x3d5);
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outb_p(data & 0x7F,0x3d5);
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// restore original regs
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pice_restore_current_registers();
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// load a font
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load_font(cGraphTable2,0);
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pScreenBufferVga = pScreenBufferSaveVga;
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// copy screen to the console
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PICE_memcpy(pScreenBufferVga,pScreenBufferHardwareVga,FRAMEBUFFER_SIZE);
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PICE_memcpy(pScreenBufferVga,pScreenBufferHardwareVga,SCREEN_BUFFER_SIZE);
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// copy the temp area to the screen
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PICE_memcpy(pScreenBufferHardwareVga,pScreenBufferTempVga,FRAMEBUFFER_SIZE);
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// restore video RAM start address
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outb_p(0xc,0x3d4);
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outb_p(offset_c,0x3d5);
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outb_p(0xd,0x3d4);
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outb_p(offset_d,0x3d5);
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// cursor state
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outb_p(0x0a,0x3d4);
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outb_p(offset_a,0x3d5);
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// cursor position
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outb_p(0x0e,0x3d4);
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outb_p(offset_e,0x3d5);
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outb_p(0x0f,0x3d4);
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outb_p(offset_f,0x3d5);
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#endif
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PICE_memcpy(pScreenBufferHardwareVga,pScreenBufferTempVga,SCREEN_BUFFER_SIZE);
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}
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//*************************************************************************
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@ -369,12 +479,9 @@ void RestoreGraphicsStateVga(void)
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BOOLEAN ConsoleInitVga(void)
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{
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BOOLEAN bResult = FALSE;
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#ifndef LOCAL_CONSOLE
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PUCHAR pMGATable = MGATable25;
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UCHAR i,reg,data;
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#endif
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PUSHORT p;
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PHYSICAL_ADDRESS FrameBuffer;
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PHYSICAL_ADDRESS FontBuffer;
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ENTER_FUNC();
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@ -399,32 +506,27 @@ BOOLEAN ConsoleInitVga(void)
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SetWindowGeometry(wWindowVga);
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|
||||
GLOBAL_SCREEN_WIDTH = 80;
|
||||
GLOBAL_SCREEN_HEIGHT = 45;
|
||||
#ifndef VGA_EXTENDED
|
||||
GLOBAL_SCREEN_HEIGHT = 25;
|
||||
#else // VGA_EXTENDED
|
||||
GLOBAL_SCREEN_HEIGHT = 50;
|
||||
#endif // VGA_EXTENDED
|
||||
|
||||
attr.u.Asuchar = 0x07;
|
||||
|
||||
#ifdef LOCAL_CONSOLE
|
||||
// the real framebuffer
|
||||
FrameBuffer.u.LowPart = 0xB8000;
|
||||
pScreenBufferHardwareVga = MmMapIoSpace(FrameBuffer,FRAMEBUFFER_SIZE,FALSE);
|
||||
// the console
|
||||
pScreenBufferVga = PICE_malloc(FRAMEBUFFER_SIZE,NONPAGEDPOOL);
|
||||
// the save area
|
||||
pScreenBufferTempVga = PICE_malloc(FRAMEBUFFER_SIZE,NONPAGEDPOOL);
|
||||
#else
|
||||
outb_p(0,0x3b8);
|
||||
outb_p(0,0x3bf);
|
||||
for(i=0;i<sizeof(MGATable25);i++)
|
||||
{
|
||||
reg=i;
|
||||
outb_p(reg,0x3b4);
|
||||
data=pMGATable[i];
|
||||
outb_p(data,0x3b5);
|
||||
}
|
||||
outb_p(0x08,0x3b8);
|
||||
pScreenBufferHardwareVga = MmMapIoSpace(FrameBuffer,SCREEN_BUFFER_SIZE,FALSE);
|
||||
|
||||
//The real font buffer
|
||||
FontBuffer.u.LowPart = 0xA0000;
|
||||
pFontBufferVga = MmMapIoSpace(FontBuffer,FONTBUFFERSIZE,FALSE);
|
||||
|
||||
// the console
|
||||
pScreenBufferVga = PICE_malloc(SCREEN_BUFFER_SIZE,NONPAGEDPOOL);
|
||||
// the save area
|
||||
pScreenBufferTempVga = PICE_malloc(SCREEN_BUFFER_SIZE,NONPAGEDPOOL);
|
||||
|
||||
pScreenBufferVga=MmMapIoSpace(0xB0000,FRAMEBUFFER_SIZE,MmWriteCombined);
|
||||
#endif
|
||||
if(pScreenBufferVga)
|
||||
{
|
||||
DPRINT((0,"VGA memory phys. 0x000b0000 mapped to virt. 0x%x\n",pScreenBufferVga));
|
||||
|
|
@ -433,7 +535,7 @@ BOOLEAN ConsoleInitVga(void)
|
|||
|
||||
p = (PUSHORT)pScreenBufferVga;
|
||||
|
||||
PICE_memset(pScreenBufferVga,0x0,FRAMEBUFFER_SIZE);
|
||||
PICE_memset(pScreenBufferVga,0x0,SCREEN_BUFFER_SIZE);
|
||||
|
||||
DPRINT((0,"VGA memory cleared!\n"));
|
||||
|
||||
|
|
@ -456,21 +558,15 @@ void ConsoleShutdownVga(void)
|
|||
{
|
||||
ENTER_FUNC();
|
||||
|
||||
#ifdef LOCAL_CONSOLE
|
||||
if(pScreenBufferVga)
|
||||
{
|
||||
PICE_free(pScreenBufferVga);
|
||||
PICE_free(pScreenBufferTempVga);
|
||||
MmUnmapIoSpace(pScreenBufferHardwareVga,FRAMEBUFFER_SIZE);
|
||||
MmUnmapIoSpace(pScreenBufferHardwareVga,SCREEN_BUFFER_SIZE);
|
||||
MmUnmapIoSpace(pFontBufferVga,FONTBUFFERSIZE);
|
||||
}
|
||||
#else
|
||||
// HERC video off
|
||||
outb_p(0,0x3b8);
|
||||
outb_p(0,0x3bf);
|
||||
|
||||
if(pScreenBufferVga)
|
||||
MmUnmapIoSpace(pScreenBufferVga,FRAMEBUFFER_SIZE);
|
||||
#endif
|
||||
|
||||
LEAVE_FUNC();
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
729
reactos/apps/utils/pice/module/vga_utils.asm
Normal file
729
reactos/apps/utils/pice/module/vga_utils.asm
Normal file
|
|
@ -0,0 +1,729 @@
|
|||
;/*++
|
||||
;
|
||||
;Copyright (c) 1998-2001 Klaus P. Gerlicher
|
||||
;
|
||||
;Module Name:
|
||||
;
|
||||
; vga_utils.asm
|
||||
;
|
||||
;Abstract:
|
||||
;
|
||||
; assembler function for directly programming standard VGA
|
||||
;
|
||||
;Environment:
|
||||
;
|
||||
; LINUX 2.2.X
|
||||
; Kernel mode only
|
||||
;
|
||||
;Author:
|
||||
;
|
||||
; Klaus P. Gerlicher
|
||||
; Reactos Port by Eugene Ingerman
|
||||
;
|
||||
;Revision History:
|
||||
;
|
||||
; 30-Oct-2001: created
|
||||
;
|
||||
;Copyright notice:
|
||||
;
|
||||
; This file may be distributed under the terms of the GNU Public License.
|
||||
;
|
||||
;--*/
|
||||
|
||||
global _pice_save_current_registers
|
||||
global _pice_restore_current_registers
|
||||
global _pice_set_mode_3_80x50
|
||||
global _pice_set_mode_3_80x25
|
||||
|
||||
;****************************************************************************
|
||||
;* some assign's ************************************************************
|
||||
;****************************************************************************
|
||||
%assign VGA_CRT_REGISTERS 24
|
||||
%assign VGA_ATTRIBUTE_REGISTERS 21
|
||||
%assign VGA_GRAPHIC_REGISTERS 9
|
||||
%assign VGA_SEQUENCER_REGISTERS 5
|
||||
%assign VGA_MISC_REGISTERS 1
|
||||
|
||||
%assign VGA_IO_BASE 03c0h
|
||||
%assign VGA_IO_SIZE 020h
|
||||
|
||||
%assign VGA_ATTRIBUTE_INDEX 03c0h
|
||||
%assign VGA_ATTRIBUTE_DATA_WRITE 03c0h
|
||||
%assign VGA_ATTRIBUTE_DATA_READ 03c1h
|
||||
%assign VGA_MISC_DATA_WRITE 03c2h
|
||||
%assign VGA_SEQUENCER_INDEX 03c4h
|
||||
%assign VGA_SEQUENCER_DATA 03c5h
|
||||
%assign VGA_PEL_MASK 03c6h
|
||||
%assign VGA_PEL_INDEX_READ 03c7h
|
||||
%assign VGA_PEL_INDEX_WRITE 03c8h
|
||||
%assign VGA_PEL_DATA 03c9h
|
||||
%assign VGA_MISC_DATA_READ 03cch
|
||||
%assign VGA_GRAPHIC_INDEX 03ceh
|
||||
%assign VGA_GRAPHIC_DATA 03cfh
|
||||
%assign VGA_CRT_INDEX 03d4h
|
||||
%assign VGA_CRT_DATA 03d5h
|
||||
%assign VGA_INPUT_STATUS 03dah
|
||||
|
||||
section .data
|
||||
pice_mode3_80x50_registers:
|
||||
; offsets 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18
|
||||
.crt: db 0x5f,0x4f,0x50,0x82,0x55,0x80,0xbf,0x1f,0x00,0x67,0x06,0x07,0x00,0x00,0x00,0x00,0x9c,0x8f,0x8f,0x28,0x1f,0x96,0xb9,0xa3,0xff
|
||||
.attribute db 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x08,0x00,0x0f,0x00,0x00
|
||||
.graphic: db 0x00,0x00,0x00,0x00,0x00,0x10,0x0e,0x00,0xff
|
||||
.sequencer: db 0x03,0x00,0x03,0x00,0x02 ; 9 bits per char
|
||||
;.sequencer: db 0x03,0x01,0x03,0x00,0x02 ; 8 bits per char
|
||||
.misc: db 0x67
|
||||
|
||||
pice_mode3_80x25_registers:
|
||||
; offsets 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18
|
||||
.crt: db 0x5f,0x4f,0x50,0x82,0x55,0x81,0xbf,0x1f,0x00,0x4f,0x0d,0x0e,0x00,0x00,0x30,0xe8,0x9c,0x0e,0x8f,0x28,0x1f,0x96,0xb9,0xa3
|
||||
.attribute db 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x0c,0x00,0x0f,0x08,0x00
|
||||
.graphic: db 0x00,0x00,0x00,0x00,0x00,0x10,0x0e,0x00,0xff
|
||||
.sequencer: db 0x03,0x00,0x03,0x00,0x02
|
||||
.misc: db 0x67
|
||||
|
||||
|
||||
|
||||
section .bss
|
||||
pice_current_registers:
|
||||
.crt: resb VGA_CRT_REGISTERS
|
||||
.attribute: resb VGA_ATTRIBUTE_REGISTERS
|
||||
.graphic: resb VGA_GRAPHIC_REGISTERS
|
||||
.sequencer: resb VGA_SEQUENCER_REGISTERS
|
||||
.misc: resb VGA_MISC_REGISTERS
|
||||
align 4
|
||||
.colormap: resd 256
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_save_current_charset ************************************************
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_address dd 0xc00a0000
|
||||
pice_save_current_charset:
|
||||
xor dword ebx, ebx
|
||||
call pice_select_read_plane
|
||||
mov dword ecx, 04000h
|
||||
mov dword esi, [pice_address]
|
||||
mov dword edi, pice_charset_saved
|
||||
cld
|
||||
rep movsd
|
||||
mov dword ebx, 00100h
|
||||
call pice_select_read_plane
|
||||
mov dword ecx, 04000h
|
||||
mov dword esi, [pice_address]
|
||||
mov dword edi, (pice_charset_saved + 010000h)
|
||||
cld
|
||||
rep movsd
|
||||
mov dword ebx, 00200h
|
||||
call pice_select_read_plane
|
||||
mov dword ecx, 04000h
|
||||
mov dword esi, [pice_address]
|
||||
mov dword edi, (pice_charset_saved + 020000h)
|
||||
cld
|
||||
rep movsd
|
||||
mov dword ebx, 00300h
|
||||
call pice_select_read_plane
|
||||
mov dword ecx, 04000h
|
||||
mov dword esi, [pice_address]
|
||||
mov dword edi, (pice_charset_saved + 030000h)
|
||||
cld
|
||||
rep movsd
|
||||
.end: ret
|
||||
|
||||
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_restore_current_charset ****************************************************
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_restore_current_charset:
|
||||
mov dword ebx, 00100h
|
||||
call pice_select_write_plane
|
||||
mov dword ecx, 04000h
|
||||
mov dword esi, pice_charset_saved
|
||||
mov dword edi, [pice_address]
|
||||
cld
|
||||
rep movsd
|
||||
mov dword ebx, 00200h
|
||||
call pice_select_write_plane
|
||||
mov dword ecx, 04000h
|
||||
mov dword esi, (pice_charset_saved + 010000h)
|
||||
mov dword edi, [pice_address]
|
||||
cld
|
||||
rep movsd
|
||||
mov dword ebx, 00400h
|
||||
call pice_select_write_plane
|
||||
mov dword ecx, 04000h
|
||||
mov dword esi, (pice_charset_saved + 020000h)
|
||||
mov dword edi, [pice_address]
|
||||
cld
|
||||
rep movsd
|
||||
mov dword ebx, 00800h
|
||||
call pice_select_write_plane
|
||||
mov dword ecx, 04000h
|
||||
mov dword esi, (pice_charset_saved + 030000h)
|
||||
mov dword edi, [pice_address]
|
||||
cld
|
||||
rep movsd
|
||||
.end: ret
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_get_crt_registers **************************************************
|
||||
;****************************************************************************
|
||||
;* ebx=> pointer where to store crt registers
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_get_crt_registers:
|
||||
xor dword ecx, ecx
|
||||
.loop: mov dword edx, VGA_CRT_INDEX
|
||||
mov byte al, cl
|
||||
out word dx, al
|
||||
mov dword edx, VGA_CRT_DATA
|
||||
in byte al, dx
|
||||
mov byte [ebx + ecx], al
|
||||
inc dword ecx
|
||||
cmp dword ecx, VGA_CRT_REGISTERS
|
||||
jb .loop
|
||||
ret
|
||||
|
||||
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_get_attribute_registers ********************************************
|
||||
;****************************************************************************
|
||||
;* ebx=> pointer where to store attribute registers
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_get_attribute_registers:
|
||||
xor dword ecx, ecx
|
||||
.loop: mov dword edx, VGA_INPUT_STATUS
|
||||
in byte al, dx
|
||||
mov dword edx, VGA_ATTRIBUTE_INDEX
|
||||
mov byte al, cl
|
||||
out word dx, al
|
||||
mov dword edx, VGA_ATTRIBUTE_DATA_READ
|
||||
in byte al, dx
|
||||
mov byte [ebx + ecx], al
|
||||
inc dword ecx
|
||||
cmp dword ecx, VGA_ATTRIBUTE_REGISTERS
|
||||
jb .loop
|
||||
ret
|
||||
|
||||
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_get_graphic_registers **********************************************
|
||||
;****************************************************************************
|
||||
;* ebx=> pointer where to store graphics registers
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_get_graphic_registers:
|
||||
xor dword ecx, ecx
|
||||
.loop: mov dword edx, VGA_GRAPHIC_INDEX
|
||||
mov byte al, cl
|
||||
out word dx, al
|
||||
mov dword edx, VGA_GRAPHIC_DATA
|
||||
in byte al, dx
|
||||
mov byte [ebx + ecx], al
|
||||
inc dword ecx
|
||||
cmp dword ecx, VGA_GRAPHIC_REGISTERS
|
||||
jb .loop
|
||||
ret
|
||||
|
||||
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_get_sequencer_registers ********************************************
|
||||
;****************************************************************************
|
||||
;* ebx=> pointer where to store sequencer registers
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_get_sequencer_registers:
|
||||
xor dword ecx, ecx
|
||||
.loop: mov dword edx, VGA_SEQUENCER_INDEX
|
||||
mov byte al, cl
|
||||
out word dx, al
|
||||
mov dword edx, VGA_SEQUENCER_DATA
|
||||
in byte al, dx
|
||||
mov byte [ebx + ecx], al
|
||||
inc dword ecx
|
||||
cmp dword ecx, VGA_SEQUENCER_REGISTERS
|
||||
jb .loop
|
||||
ret
|
||||
|
||||
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_get_misc_registers *************************************************
|
||||
;****************************************************************************
|
||||
;* ebx=> pointer where to store misc register
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_get_misc_registers:
|
||||
mov dword edx, VGA_MISC_DATA_READ
|
||||
in byte al, dx
|
||||
mov byte [ebx], al
|
||||
ret
|
||||
|
||||
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_get_colormap *******************************************************
|
||||
;****************************************************************************
|
||||
;* ebx=> pointer where to store colormap
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_get_colormap:
|
||||
xor dword ecx, ecx
|
||||
xor dword eax, eax
|
||||
mov dword edx, VGA_PEL_INDEX_READ
|
||||
out word dx, al
|
||||
mov dword edx, VGA_PEL_DATA
|
||||
.loop: in byte al, dx
|
||||
shl dword eax, 8
|
||||
in byte al, dx
|
||||
shl dword eax, 8
|
||||
in byte al, dx
|
||||
mov dword [ebx + 4 * ecx], eax
|
||||
inc dword ecx
|
||||
test byte cl, cl
|
||||
jnz .loop
|
||||
ret
|
||||
|
||||
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_set_crt_registers **************************************************
|
||||
;****************************************************************************
|
||||
;* ebx=> pointer to stored crt registers
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_set_crt_registers:
|
||||
|
||||
;deprotect CRT registers 0 - 7
|
||||
|
||||
mov dword edx, VGA_CRT_INDEX
|
||||
mov byte al, 011h
|
||||
out word dx, al
|
||||
mov dword edx, VGA_CRT_DATA
|
||||
in byte al, dx
|
||||
and byte al, 07fh
|
||||
out word dx, al
|
||||
|
||||
;write to the registers
|
||||
|
||||
xor dword ecx, ecx
|
||||
.loop: mov dword edx, VGA_CRT_INDEX
|
||||
mov byte al, cl
|
||||
out word dx, al
|
||||
mov dword edx, VGA_CRT_DATA
|
||||
mov byte al, [ebx + ecx]
|
||||
out word dx, al
|
||||
inc dword ecx
|
||||
cmp dword ecx, VGA_CRT_REGISTERS
|
||||
jb .loop
|
||||
ret
|
||||
|
||||
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_set_attribute_registers ********************************************
|
||||
;****************************************************************************
|
||||
;* ebx=> pointer to stored attibute registers
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_set_attribute_registers:
|
||||
xor dword ecx, ecx
|
||||
.loop: mov dword edx, VGA_INPUT_STATUS
|
||||
in byte al, dx
|
||||
mov dword edx, VGA_ATTRIBUTE_INDEX
|
||||
mov byte al, cl
|
||||
out word dx, al
|
||||
mov dword edx, VGA_ATTRIBUTE_DATA_WRITE
|
||||
mov byte al, [ebx + ecx]
|
||||
out word dx, al
|
||||
inc dword ecx
|
||||
cmp dword ecx, VGA_ATTRIBUTE_REGISTERS
|
||||
jb .loop
|
||||
ret
|
||||
|
||||
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_set_graphic_registers **********************************************
|
||||
;****************************************************************************
|
||||
;* ebx=> pointer to stored graphic registers
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_set_graphic_registers:
|
||||
xor dword ecx, ecx
|
||||
.loop: mov dword edx, VGA_GRAPHIC_INDEX
|
||||
mov byte al, cl
|
||||
out word dx, al
|
||||
mov dword edx, VGA_GRAPHIC_DATA
|
||||
mov byte al, [ebx + ecx]
|
||||
out word dx, al
|
||||
inc dword ecx
|
||||
cmp dword ecx, VGA_GRAPHIC_REGISTERS
|
||||
jb .loop
|
||||
ret
|
||||
|
||||
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_set_sequencer_registers ********************************************
|
||||
;****************************************************************************
|
||||
;* ebx=> pointer to stored sequencer registers
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_set_sequencer_registers:
|
||||
|
||||
;synchronous reset on
|
||||
|
||||
mov dword edx, VGA_SEQUENCER_INDEX
|
||||
xor dword eax, eax
|
||||
out word dx, al
|
||||
mov dword edx, VGA_SEQUENCER_DATA
|
||||
inc dword eax
|
||||
out word dx, al
|
||||
|
||||
;write to the registers
|
||||
|
||||
mov dword edx, VGA_SEQUENCER_INDEX
|
||||
out word dx, al
|
||||
mov dword edx, VGA_SEQUENCER_DATA
|
||||
mov byte al, [ebx + 1]
|
||||
or byte al, 020h
|
||||
out word dx, al
|
||||
mov dword ecx, 2
|
||||
.loop: mov dword edx, VGA_SEQUENCER_INDEX
|
||||
mov byte al, cl
|
||||
out word dx, al
|
||||
mov dword edx, VGA_SEQUENCER_DATA
|
||||
mov byte al, [ebx + ecx]
|
||||
out word dx, al
|
||||
inc dword ecx
|
||||
cmp dword ecx, VGA_SEQUENCER_REGISTERS
|
||||
jb .loop
|
||||
|
||||
;synchronous reset off
|
||||
|
||||
mov dword edx, VGA_SEQUENCER_INDEX
|
||||
xor dword eax, eax
|
||||
out word dx, al
|
||||
mov dword edx, VGA_SEQUENCER_DATA
|
||||
mov byte al, 3
|
||||
out word dx, al
|
||||
ret
|
||||
|
||||
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_set_misc_registers *************************************************
|
||||
;****************************************************************************
|
||||
;* ebx=> pointer to stored misc register
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_set_misc_registers:
|
||||
mov dword edx, VGA_MISC_DATA_WRITE
|
||||
mov byte al, [ebx]
|
||||
out word dx, al
|
||||
ret
|
||||
|
||||
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_set_colormap *******************************************************
|
||||
;****************************************************************************
|
||||
;* ebx=> pointer to stored colormap
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_set_colormap:
|
||||
xor dword ecx, ecx
|
||||
xor dword eax, eax
|
||||
mov dword edx, VGA_PEL_INDEX_WRITE
|
||||
out word dx, al
|
||||
mov dword edx, VGA_PEL_DATA
|
||||
.loop: mov dword eax, [ebx + 4 * ecx]
|
||||
rol dword eax, 16
|
||||
out word dx, al
|
||||
rol dword eax, 8
|
||||
out word dx, al
|
||||
rol dword eax, 8
|
||||
out word dx, al
|
||||
inc dword ecx
|
||||
test byte cl, cl
|
||||
jnz .loop
|
||||
ret
|
||||
|
||||
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_screen_on **********************************************************
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_screen_on:
|
||||
|
||||
;turn on the screen
|
||||
|
||||
mov dword edx, VGA_SEQUENCER_INDEX
|
||||
mov byte al, 1
|
||||
out word dx, al
|
||||
mov dword edx, VGA_SEQUENCER_DATA
|
||||
in byte al, dx
|
||||
and byte al, 0dfh
|
||||
out word dx, al
|
||||
|
||||
;enable video output
|
||||
|
||||
mov dword edx, VGA_INPUT_STATUS
|
||||
in byte al, dx
|
||||
mov dword edx, VGA_ATTRIBUTE_DATA_WRITE
|
||||
mov byte al, 020h
|
||||
out word dx, al
|
||||
ret
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_select_write_plane *************************************************
|
||||
;****************************************************************************
|
||||
;* bl==> write mode
|
||||
;* bh==> write plane
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_select_write_plane:
|
||||
and dword ebx, 00f03h
|
||||
|
||||
;enable set/reset = 0
|
||||
|
||||
mov dword edx, VGA_GRAPHIC_INDEX
|
||||
mov byte al, 1
|
||||
out word dx, al
|
||||
mov dword edx, VGA_GRAPHIC_DATA
|
||||
xor dword eax, eax
|
||||
out word dx, al
|
||||
|
||||
;logical operation = none, rotate = 0
|
||||
|
||||
mov dword edx, VGA_GRAPHIC_INDEX
|
||||
mov byte al, 3
|
||||
out word dx, al
|
||||
mov dword edx, VGA_GRAPHIC_DATA
|
||||
xor dword eax, eax
|
||||
out word dx, al
|
||||
|
||||
;select write mode
|
||||
|
||||
mov dword edx, VGA_GRAPHIC_INDEX
|
||||
mov byte al, 5
|
||||
out word dx, al
|
||||
mov dword edx, VGA_GRAPHIC_DATA
|
||||
in byte al, dx
|
||||
and byte al, 0fch
|
||||
or byte al, bl
|
||||
out word dx, al
|
||||
|
||||
;bitmask = 0ffh
|
||||
|
||||
mov dword edx, VGA_GRAPHIC_INDEX
|
||||
mov byte al, 8
|
||||
out word dx, al
|
||||
mov dword edx, VGA_GRAPHIC_DATA
|
||||
mov byte al, 0ffh
|
||||
out word dx, al
|
||||
|
||||
;select write plane
|
||||
|
||||
mov dword edx, VGA_SEQUENCER_INDEX
|
||||
mov byte al, 2
|
||||
out word dx, al
|
||||
mov dword edx, VGA_SEQUENCER_DATA
|
||||
mov byte al, bh
|
||||
out word dx, al
|
||||
ret
|
||||
|
||||
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_select_read_plane **************************************************
|
||||
;****************************************************************************
|
||||
;* bl==> read mode
|
||||
;* bh==> read plane
|
||||
;****************************************************************************
|
||||
section .text
|
||||
pice_select_read_plane:
|
||||
and dword ebx, 00301h
|
||||
shl byte bl, 3
|
||||
|
||||
;select read mode
|
||||
|
||||
mov dword edx, VGA_GRAPHIC_INDEX
|
||||
mov byte al, 5
|
||||
out word dx, al
|
||||
mov dword edx, VGA_GRAPHIC_DATA
|
||||
in byte al, dx
|
||||
and byte al, 0f7h
|
||||
or byte al, bl
|
||||
out word dx, al
|
||||
|
||||
;select read plane
|
||||
|
||||
mov dword edx, VGA_GRAPHIC_INDEX
|
||||
mov byte al, 4
|
||||
out word dx, al
|
||||
mov dword edx, VGA_GRAPHIC_DATA
|
||||
mov byte al, bh
|
||||
out word dx, al
|
||||
ret
|
||||
|
||||
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_save_current_registers **********************************************
|
||||
;****************************************************************************
|
||||
section .text
|
||||
_pice_save_current_registers:
|
||||
push esi
|
||||
push edi
|
||||
push ebx
|
||||
|
||||
; call pice_save_current_charset
|
||||
|
||||
.crt: mov dword ebx, pice_current_registers.crt
|
||||
call pice_get_crt_registers
|
||||
|
||||
.attribute: mov dword ebx, pice_current_registers.attribute
|
||||
call pice_get_attribute_registers
|
||||
|
||||
.graphic: mov dword ebx, pice_current_registers.graphic
|
||||
call pice_get_graphic_registers
|
||||
|
||||
.sequencer: mov dword ebx, pice_current_registers.sequencer
|
||||
call pice_get_sequencer_registers
|
||||
|
||||
.misc: mov dword ebx, pice_current_registers.misc
|
||||
call pice_get_misc_registers
|
||||
|
||||
.colormap: mov dword ebx, pice_current_registers.colormap
|
||||
call pice_get_colormap
|
||||
|
||||
pop ebx
|
||||
pop edi
|
||||
pop esi
|
||||
.end: ret
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_restore_current_registers *******************************************
|
||||
;****************************************************************************
|
||||
section .text
|
||||
_pice_restore_current_registers:
|
||||
push esi
|
||||
push edi
|
||||
push ebx
|
||||
|
||||
; call pice_restore_current_charset
|
||||
|
||||
.misc: mov dword ebx, pice_current_registers.misc
|
||||
call pice_set_misc_registers
|
||||
|
||||
.crt: mov dword ebx, pice_current_registers.crt
|
||||
call pice_set_crt_registers
|
||||
|
||||
.attribute: mov dword ebx, pice_current_registers.attribute
|
||||
call pice_set_attribute_registers
|
||||
|
||||
.graphic: mov dword ebx, pice_current_registers.graphic
|
||||
call pice_set_graphic_registers
|
||||
|
||||
.sequencer: mov dword ebx, pice_current_registers.sequencer
|
||||
call pice_set_sequencer_registers
|
||||
|
||||
.screen_on: call pice_screen_on
|
||||
|
||||
.colormap: mov dword ebx, pice_current_registers.colormap
|
||||
call pice_set_colormap
|
||||
|
||||
pop ebx
|
||||
pop edi
|
||||
pop esi
|
||||
|
||||
.end: ret
|
||||
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_set_mode_3_80x50*****************************************************
|
||||
;****************************************************************************
|
||||
section .text
|
||||
_pice_set_mode_3_80x50:
|
||||
push esi
|
||||
push edi
|
||||
push ebx
|
||||
|
||||
.crt: mov dword ebx, pice_mode3_80x50_registers.crt
|
||||
call pice_set_crt_registers
|
||||
|
||||
.attribute: mov dword ebx, pice_mode3_80x50_registers.attribute
|
||||
call pice_set_attribute_registers
|
||||
|
||||
.graphic: mov dword ebx, pice_mode3_80x50_registers.graphic
|
||||
call pice_set_graphic_registers
|
||||
|
||||
.sequencer: mov dword ebx, pice_mode3_80x50_registers.sequencer
|
||||
call pice_set_sequencer_registers
|
||||
|
||||
.misc: mov dword ebx, pice_mode3_80x50_registers.misc
|
||||
call pice_set_misc_registers
|
||||
|
||||
.screen_on: call pice_screen_on
|
||||
|
||||
;.colormap: mov dword ebx, pice_current_registers.colormap
|
||||
; call pice_set_colormap
|
||||
|
||||
pop ebx
|
||||
pop edi
|
||||
pop esi
|
||||
|
||||
.end: ret
|
||||
|
||||
;****************************************************************************
|
||||
;* pice_set_mode_3_80x25*****************************************************
|
||||
;****************************************************************************
|
||||
section .text
|
||||
_pice_set_mode_3_80x25:
|
||||
push esi
|
||||
push edi
|
||||
push ebx
|
||||
|
||||
.crt: mov dword ebx, pice_mode3_80x25_registers.crt
|
||||
call pice_set_crt_registers
|
||||
|
||||
.attribute: mov dword ebx, pice_mode3_80x25_registers.attribute
|
||||
call pice_set_attribute_registers
|
||||
|
||||
.graphic: mov dword ebx, pice_mode3_80x25_registers.graphic
|
||||
call pice_set_graphic_registers
|
||||
|
||||
.sequencer: mov dword ebx, pice_mode3_80x25_registers.sequencer
|
||||
call pice_set_sequencer_registers
|
||||
|
||||
.misc: mov dword ebx, pice_mode3_80x25_registers.misc
|
||||
call pice_set_misc_registers
|
||||
|
||||
.screen_on: call pice_screen_on
|
||||
|
||||
;.colormap: mov dword ebx, pice_current_registers.colormap
|
||||
; call pice_set_colormap
|
||||
|
||||
pop ebx
|
||||
pop edi
|
||||
pop esi
|
||||
|
||||
.end: ret
|
||||
|
||||
;****************************************************************************
|
||||
;* uninitialized data *******************************************************
|
||||
;****************************************************************************
|
||||
section .bss
|
||||
alignb 4
|
||||
pice_charset_saved: resb 040000h
|
||||
|
||||
|
||||
Loading…
Reference in a new issue