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remove enhanced-attribute of keys in PCJr keyboard layer

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2416
This commit is contained in:
Sebastian Strohhäcker 2005-12-18 21:22:42 +00:00
parent 7c919537f0
commit 2d06e15795
1 changed files with 11 additions and 9 deletions
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20
src/ints/bios_keyboard.cpp
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@ -438,21 +438,23 @@ irq1_return:
return CBRET_NONE;
}
static bool pcjr_extended_key=false;
static Bitu IRQ6_Handler(void) {
Bit8u scancode=IO_Read(0x60);
Bit16u old_ax=reg_ax;
if (pcjr_extended_key) reg_ax=scancode<<8;
else reg_al=scancode;
pcjr_extended_key=(scancode==0xe0);
/* call the real keyboard IRQ now, with the scancode in AL */
CALLBACK_RunRealInt(0x09);
reg_ax=old_ax;
/* skip extended keys, all of them should map quite nicely
onto corresponding non-extended keys */
if (scancode!=0xe0) {
Bit16u old_ax=reg_ax;
reg_al=scancode;
/* call the real keyboard IRQ now, with the scancode in AL */
CALLBACK_RunRealInt(0x09);
reg_ax=old_ax;
}
IO_Write(0x20,0x20);
return CBRET_NONE;
}
/* check whether key combination is enhanced or not,
translate key if necessary */
static bool IsEnhancedKey(Bit16u &key) {