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Rev 2787 Rev 3424
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                    break;
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                    break;
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                }
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                }
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            }
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            }
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            if (allocate) {
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            if (allocate) {
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                frame = (uintptr_t) frame_alloc(ONE_FRAME, 0);
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                frame = (uintptr_t) frame_alloc(ONE_FRAME, 0);
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                memsetb(PA2KA(frame), FRAME_SIZE, 0);
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                memsetb((void *) PA2KA(frame), FRAME_SIZE, 0);
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                dirty = true;
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                dirty = true;
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                /*
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                /*
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                 * Insert the address of the newly allocated
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                 * Insert the address of the newly allocated
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                 * frame to the pagemap.
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                 * frame to the pagemap.
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         *   reuse; when this becomes a possibility,
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         *   reuse; when this becomes a possibility,
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         *   do not forget to distinguish between
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         *   do not forget to distinguish between
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         *   the different causes
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         *   the different causes
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         */
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         */
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        frame = (uintptr_t) frame_alloc(ONE_FRAME, 0);
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        frame = (uintptr_t) frame_alloc(ONE_FRAME, 0);
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        memsetb(PA2KA(frame), FRAME_SIZE, 0);
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        memsetb((void *) PA2KA(frame), FRAME_SIZE, 0);
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        dirty = true;
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        dirty = true;
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    }
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    }
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    /*
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    /*
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     * Map 'page' to 'frame'.
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     * Map 'page' to 'frame'.