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-rw-r--r--contrib/syslinux/latest/core/fs/loadhigh.c112
1 files changed, 0 insertions, 112 deletions
diff --git a/contrib/syslinux/latest/core/fs/loadhigh.c b/contrib/syslinux/latest/core/fs/loadhigh.c
deleted file mode 100644
index bd9d353..0000000
--- a/contrib/syslinux/latest/core/fs/loadhigh.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * -----------------------------------------------------------------------
- *
- * Copyright 1994-2009 H. Peter Anvin - All Rights Reserved
- * Copyright 2009-2010 Intel Corporation; author: H. Peter Anvin
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, Inc., 53 Temple Place Ste 330,
- * Boston MA 02111-1307, USA; either version 2 of the License, or
- * (at your option) any later version; incorporated herein by reference.
- *
- * ----------------------------------------------------------------------- */
-
-/*
- * loadhigh.c
- *
- * An alternate interface to getfssec.
- *
- * Inputs: SI = file handle/cluster pointer
- * EDI = target address in high memory
- * EAX = maximum number of bytes to load
- * DX = zero-padding mask (e.g. 0003h for pad to dword)
- * BX = 16-bit subroutine to call at the top of each loop
- * (to print status and check for abort)
- * EBP = maximum load address
- *
- * Outputs: SI = file handle/cluster pointer
- * EBX = first untouched address (not including padding)
- * EDI = first untouched address (including padding)
- * CF = reached EOF
- * OF = ran out of high memory
- */
-
-#include <com32.h>
-#include <minmax.h>
-#include "core.h"
-#include "fs.h"
-
-#define MAX_CHUNK (1 << 20) /* 1 MB */
-
-void pm_load_high(com32sys_t *regs)
-{
- struct fs_info *fs;
- uint32_t bytes;
- uint32_t zero_mask;
- bool have_more;
- uint32_t bytes_read;
- char *buf, *limit;
- struct file *file;
- uint32_t sector_mask;
- size_t pad;
- uint32_t retflags = 0;
-
- bytes = regs->eax.l;
- zero_mask = regs->edx.w[0];
- buf = (char *)regs->edi.l;
- limit = (char *)(regs->ebp.l & ~zero_mask);
- file = handle_to_file(regs->esi.w[0]);
- fs = file->fs;
-
- sector_mask = SECTOR_SIZE(fs) - 1;
-
- while (bytes) {
- uint32_t sectors;
- uint32_t chunk;
-
- if (buf + SECTOR_SIZE(fs) > limit) {
- /* Can't fit even one more sector in... */
- retflags = EFLAGS_OF;
- break;
- }
-
- chunk = bytes;
-
- if (regs->ebx.w[0]) {
- call16((void (*)(void))(size_t)regs->ebx.w[0], &zero_regs, NULL);
- chunk = min(chunk, MAX_CHUNK);
- }
-
- if (chunk > (((char *)limit - buf) & ~sector_mask))
- chunk = ((char *)limit - buf) & ~sector_mask;
-
- sectors = (chunk + sector_mask) >> SECTOR_SHIFT(fs);
- bytes_read = fs->fs_ops->getfssec(file, buf, sectors, &have_more);
-
- if (bytes_read > chunk)
- bytes_read = chunk;
-
- buf += bytes_read;
- bytes -= bytes_read;
-
- if (!have_more) {
- /*
- * If we reach EOF, the filesystem driver will have already closed
- * the underlying file... this really should be cleaner.
- */
- _close_file(file);
- regs->esi.w[0] = 0;
- retflags = EFLAGS_CF;
- break;
- }
- }
-
- pad = (size_t)buf & zero_mask;
- if (pad)
- memset(buf, 0, pad);
-
- regs->ebx.l = (size_t)buf;
- regs->edi.l = (size_t)buf + pad;
- set_flags(regs, retflags);
-}