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| Rev 357 | Rev 358 | ||
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| Line 35... | Line 35... | ||
| 35 | .text |
35 | .text |
| 36 | 36 | ||
| 37 | .global paging_on |
37 | .global paging_on |
| 38 | .global enable_l_apic_in_msr |
38 | .global enable_l_apic_in_msr |
| 39 | .global interrupt_handlers |
39 | .global interrupt_handlers |
| 40 | .global memcpy |
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| 41 | .global memsetb |
40 | .global memsetb |
| 42 | .global memsetw |
41 | .global memsetw |
| 43 | .global memcmp |
42 | .global memcmp |
| 44 | 43 | ||
| 45 | 44 | ||
| Line 152... | Line 151... | ||
| 152 | # handler 128 192 |
151 | # handler 128 192 |
| 153 | # handler 192 256 |
152 | # handler 192 256 |
| 154 | h_end: |
153 | h_end: |
| 155 | 154 | ||
| 156 | 155 | ||
| 157 | ## Copy memory |
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| 158 | # |
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| 159 | # Copy a given number of bytes (3rd argument) |
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| 160 | # from the memory location defined by 2nd argument |
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| 161 | # to the memory location defined by 1st argument. |
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| 162 | # The memory areas cannot overlap. |
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| 163 | # |
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| 164 | SRC=16 |
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| 165 | DST=12 |
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| 166 | CNT=20 |
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| 167 | memcpy: |
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| 168 | push %esi |
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| 169 | push %edi |
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| 170 | - | ||
| 171 | movl CNT(%esp),%ecx |
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| 172 | movl DST(%esp),%edi |
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| 173 | movl SRC(%esp),%esi |
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| 174 | - | ||
| 175 | rep movsb %ds:(%esi),%es:(%edi) |
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| 176 | - | ||
| 177 | pop %edi |
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| 178 | pop %esi |
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| 179 | ret |
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| 180 | - | ||
| 181 | - | ||
| 182 | ## Fill memory with bytes |
156 | ## Fill memory with bytes |
| 183 | # |
157 | # |
| 184 | # Fill a given number of bytes (2nd argument) |
158 | # Fill a given number of bytes (2nd argument) |
| 185 | # at memory defined by 1st argument with the |
159 | # at memory defined by 1st argument with the |
| 186 | # byte value defined by 3rd argument. |
160 | # byte value defined by 3rd argument. |