diff options
| -rw-r--r-- | com32/modules/chain.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/com32/modules/chain.c b/com32/modules/chain.c index a162ca33..a9ebf767 100644 --- a/com32/modules/chain.c +++ b/com32/modules/chain.c @@ -328,6 +328,8 @@ static void do_boot(void *boot_sector, size_t boot_size, struct syslinux_memmap *mmap; struct syslinux_movelist *mlist = NULL; addr_t dosmem = old_bios_fbm << 10; + uint8_t driveno = regs->edx.b[0]; + uint8_t swapdrive = driveno & 0x80; mmap = syslinux_memory_map(); @@ -336,10 +338,8 @@ static void do_boot(void *boot_sector, size_t boot_size, return; } - if (opt.swap) { + if (opt.swap && driveno != swapdrive) { uint8_t *p; - uint8_t driveno = regs->edx.b[0]; - uint8_t swapdrive = driveno & 0x80; regs->edx.b[0] = swapdrive; |