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foreign keyboard support

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@705
This commit is contained in:
Sjoerd van der Berg 2003-03-02 21:46:25 +00:00
parent 5c8b61d624
commit fe1b5109f5
1 changed files with 26 additions and 16 deletions
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42
src/ints/bios_keyboard.cpp
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@ -197,17 +197,24 @@ static Bit16u check_key(void) {
static Bitu IRQ1_Handler(void) {
//TODO CAPSLOCK NUMLOCK SCROLLLOCK maybe :)
Bit8u code=IO_Read(0x60);
/* Read the code */
Bitu scancode,ascii,mod;
#if 0
scancode=IO_Read(0x60);
ascii=0;
mod=0;
#else
KEYBOARD_ReadKey(scancode,ascii,mod);
// LOG(0,"Got code %X ascii %C mod %X",scancode,ascii,mod);
#endif
//TODO maybe implement the int 0x15 ah=4f scancode lookup hook
/* Changed it so the flag handling takes place in here too */
Bit8u flags1=mem_readb(BIOS_KEYBOARD_FLAGS1);
Bit8u flags2=mem_readb(BIOS_KEYBOARD_FLAGS2);
Bit8u flags3=mem_readb(BIOS_KEYBOARD_FLAGS3);
switch (code) {
switch (scancode) {
/* First the hard ones */
case 0xe0:
//TODO Think of something else maybe
case 0xe0: /* Extended key */
flags3|=2;
break;
case 29: /* Ctrl Pressed */
@ -258,17 +265,18 @@ static Bitu IRQ1_Handler(void) {
/* Now Handle the releasing of keys and see if they match up for a code */
flags3&=~2; //Reset 0xE0 Flag
/* Handle the actual scancode */
if (code & 0x80) goto irq1_end;
if (code > MAX_SCAN_CODE) goto irq1_end;
if (flags1 & 8) { /* Alt is being pressed */
asciiscan=scan_to_scanascii[code].alt;
} else if (flags1 & 4) { /* Ctrl is being pressed */
asciiscan=scan_to_scanascii[code].control;
} else if (flags1 & 3) { /* Either shift is being pressed */
//TODO Maybe check for Capslock sometime in some bored way
asciiscan=scan_to_scanascii[code].shift;
if (scancode & 0x80) goto irq1_end;
if (scancode > MAX_SCAN_CODE) goto irq1_end;
if (mod & KBD_MOD_ALT) { /* Alt is being pressed */
asciiscan=scan_to_scanascii[scancode].alt;
} else if (ascii) {
asciiscan=(scancode << 8) | ascii;
} else if (mod & KBD_MOD_CTRL) { /* Ctrl is being pressed */
asciiscan=scan_to_scanascii[scancode].control;
} else if (mod & KBD_MOD_SHIFT) { /* Either shift is being pressed */
asciiscan=scan_to_scanascii[scancode].shift;
} else {
asciiscan=scan_to_scanascii[code].normal;
asciiscan=scan_to_scanascii[scancode].normal;
}
add_key(asciiscan);
};
@ -277,10 +285,12 @@ irq1_end:
mem_writeb(BIOS_KEYBOARD_FLAGS2,flags2);
mem_writeb(BIOS_KEYBOARD_FLAGS3,flags3);
IO_Write(0x20,0x20);
#if 0
/* Signal the keyboard for next code */
Bit8u old61=IO_Read(0x61);
IO_Write(0x61,old61 | 128);
IO_Write(0x61,old61 & 127);
#endif
return CBRET_NONE;
}