Revision 49
minor changes
| lab3/kbc_func.c | ||
|---|---|---|
| 16 | 16 |
|
| 17 | 17 |
uint8_t scancode[2]; |
| 18 | 18 |
int got_error = 0; |
| 19 |
int done = 0;
|
|
| 19 |
int done = 1;
|
|
| 20 | 20 |
int sz = 1; |
| 21 | 21 |
|
| 22 | 22 |
void (kbc_ih)(void) {
|
| 23 |
|
|
| 24 |
if(done) sz = 1; |
|
| 25 |
else sz++; |
|
| 26 |
|
|
| 23 | 27 |
uint8_t status = 0; |
| 24 | 28 |
got_error = 0; |
| 25 | 29 |
|
| ... | ... | |
| 40 | 44 |
return; |
| 41 | 45 |
} |
| 42 | 46 |
|
| 43 |
if (sz == 2 && done == 0) {
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|
| 44 |
scancode[1] = byte; |
|
| 45 |
done = 1; |
|
| 46 |
} else {
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| 47 |
scancode[0] = byte; |
|
| 48 |
if (byte == TWO_BYTE_CODE) {
|
|
| 49 |
sz = 2; |
|
| 50 |
done = 0; |
|
| 51 |
} else {
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| 52 |
sz = 1; |
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done = 1; |
|
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} |
|
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} |
|
| 47 |
scancode[sz-1] = byte; |
|
| 48 |
done = !(TWO_BYTE_CODE == byte); |
|
| 56 | 49 |
|
| 57 | 50 |
} |
| 58 | 51 |
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