Rev 2465 | Rev 5565 | Go to most recent revision | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 2465 | Rev 5201 | ||
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| 9 | ;; See file COPYING for details. ;; |
9 | ;; See file COPYING for details. ;; |
| 10 | ;; Copyright 2003 Ville Turjanmaa ;; |
10 | ;; Copyright 2003 Ville Turjanmaa ;; |
| 11 | ;; ;; |
11 | ;; ;; |
| 12 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
12 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| Line 13... | Line 13... | ||
| 13 | 13 | ||
| Line -... | Line 14... | ||
| - | 14 | $Revision: 5201 $ |
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| - | 15 | ||
| - | 16 | use32 |
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| - | 17 | become_real: |
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| - | 18 | cli |
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| - | 19 | lgdt [realmode_gdt-OS_BASE] |
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| - | 20 | jmp 8:@f |
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| - | 21 | use16 |
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| - | 22 | @@: |
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| - | 23 | mov ax, 10h |
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| - | 24 | mov ds, ax |
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| - | 25 | mov es, ax |
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| - | 26 | mov fs, ax |
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| - | 27 | mov gs, ax |
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| - | 28 | mov ss, ax |
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| - | 29 | mov eax, cr0 |
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| - | 30 | and eax, not 80000001h |
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| Line 14... | Line -... | ||
| 14 | $Revision: 2465 $ |
- | |
| 15 | 31 | mov cr0, eax |
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| Line 16... | Line 32... | ||
| 16 | 32 | jmp 0x1000:pr_mode_exit |
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| 17 | align 4 |
33 | |
| 18 | pr_mode_exit: |
34 | pr_mode_exit: |
| Line 164... | Line 180... | ||
| 164 | 180 | ||
| 165 | push ds |
181 | push ds |
| 166 | pop es |
182 | pop es |
| 167 | mov cx, 0x8000 |
183 | mov cx, 0x8000 |
| 168 | push cx |
184 | push cx |
| 169 | push 0x7000 |
185 | push 0x7100 |
| 170 | pop ds |
186 | pop ds |
| 171 | xor si, si |
187 | xor si, si |
| 172 | xor di, di |
188 | xor di, di |
| 173 | rep movsw |
189 | rep movsw |