Imbus/xv6-riscv-kernel
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fix comments

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This commit is contained in:
rtm 2007-09-15 20:05:47 +00:00
parent e9f8419fbe
commit 411ee74127
3 changed files with 8 additions and 10 deletions
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12
bootmain.c
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@ -1,10 +1,9 @@
// Boot loader.
//
// The BIOS loads boot sector (bootasm.S) from sector 0 of the disk
// into memory and executes it. The boot sector puts the processor
// in 32-bit mode and calls bootmain below, which loads an ELF kernel
// image from the disk starting at sector 1 and then jumps to the
// kernel entry routine.
// Part of the boot sector, along with bootasm.S, which calls bootmain().
// bootasm.S has put the processor into protected 32-bit mode.
// bootmain() loads an ELF kernel image from the disk starting at
// sector 1 and then jumps to the kernel entry routine.
#include "types.h"
#include "elf.h"
@ -34,7 +33,7 @@ bootmain(void)
ph = (struct proghdr*)((uchar*)elf + elf->phoff);
eph = ph + elf->phnum;
for(; ph < eph; ph++)
readseg(ph->va, ph->memsz, ph->offset);
readseg(ph->va & 0xFFFFFF, ph->memsz, ph->offset);
// Call the entry point from the ELF header.
// Does not return!
@ -81,7 +80,6 @@ readseg(uint va, uint count, uint offset)
{
uint eva;
va &= 0xFFFFFF;
eva = va + count;
// Round down to sector boundary.