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Rev 575 | Rev 588 | ||
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Line 97... | Line 97... | ||
97 | 97 | ||
98 | ipl = interrupts_disable(); |
98 | ipl = interrupts_disable(); |
99 | spinlock_lock(&egalock); |
99 | spinlock_lock(&egalock); |
100 | 100 | ||
101 | switch (ch) { |
101 | switch (ch) { |
102 | case '\n': |
102 | case '\n': |
103 | ega_cursor = (ega_cursor + ROW) - ega_cursor % ROW; |
103 | ega_cursor = (ega_cursor + ROW) - ega_cursor % ROW; |
104 | break; |
104 | break; |
105 | case '\t': |
105 | case '\t': |
106 | ega_cursor = (ega_cursor + 8) - ega_cursor % 8; |
106 | ega_cursor = (ega_cursor + 8) - ega_cursor % 8; |
107 | break; |
107 | break; |
- | 108 | case '\b': |
|
- | 109 | if (ega_cursor % ROW) |
|
- | 110 | ega_cursor--; |
|
- | 111 | break; |
|
108 | default: |
112 | default: |
109 | ega_display_char(ch); |
113 | ega_display_char(ch); |
110 | ega_cursor++; |
114 | ega_cursor++; |
111 | break; |
115 | break; |
112 | } |
116 | } |
113 | ega_check_cursor(); |
117 | ega_check_cursor(); |