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use fixed keyboard buffer start/end for old bioses (ApplePanic booter);

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enable PCJr selection


Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2421
This commit is contained in:
Sebastian Strohhäcker 2005-12-22 20:37:20 +00:00
parent 15455827d9
commit c1fd235522
2 changed files with 19 additions and 6 deletions
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20
src/ints/bios_keyboard.cpp
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@ -130,8 +130,14 @@ static struct {
static bool add_key_forced(Bit16u code) {
if (mem_readb(BIOS_KEYBOARD_FLAGS2)&8) return true;
Bit16u start,end,head,tail,ttail;
start=mem_readw(BIOS_KEYBOARD_BUFFER_START);
end =mem_readw(BIOS_KEYBOARD_BUFFER_END);
if (machine==MCH_PCJR) {
/* should be done for cga and others as well, to be tested */
start=0x1e;
end=0x3e;
} else {
start=mem_readw(BIOS_KEYBOARD_BUFFER_START);
end =mem_readw(BIOS_KEYBOARD_BUFFER_END);
}
head =mem_readw(BIOS_KEYBOARD_BUFFER_HEAD);
tail =mem_readw(BIOS_KEYBOARD_BUFFER_TAIL);
ttail=tail+2;
@ -152,8 +158,14 @@ static void add_key(Bit16u code) {
static bool get_key(Bit16u &code) {
Bit16u start,end,head,tail,thead;
start=mem_readw(BIOS_KEYBOARD_BUFFER_START);
end =mem_readw(BIOS_KEYBOARD_BUFFER_END);
if (machine==MCH_PCJR) {
/* should be done for cga and others as well, to be tested */
start=0x1e;
end=0x3e;
} else {
start=mem_readw(BIOS_KEYBOARD_BUFFER_START);
end =mem_readw(BIOS_KEYBOARD_BUFFER_END);
}
head =mem_readw(BIOS_KEYBOARD_BUFFER_HEAD);
tail =mem_readw(BIOS_KEYBOARD_BUFFER_TAIL);