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| author | H. Peter Anvin <hpa@zytor.com> | 2010-02-21 15:42:03 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-02-21 15:42:03 -0800 |
| commit | ced4ec389bd2d915f3e00e41736737279fba89ec (patch) | |
| tree | c8d297c43ade26a3d60ca4bb16d6b0abd0f5d974 /core/init.inc | |
| parent | 8f652f110068ed20dd84bdc46233d803bc4150be (diff) | |
| download | syslinux-ced4ec389bd2d915f3e00e41736737279fba89ec.tar.gz | |
core: let xfer_buf_seg, real_mode_seg be assigned by the linker
Use the linker to assign xfer_bug_seg and real_mode_seg.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'core/init.inc')
| -rw-r--r-- | core/init.inc | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/core/init.inc b/core/init.inc index a3fe3041..90c0293b 100644 --- a/core/init.inc +++ b/core/init.inc @@ -64,11 +64,19 @@ check_escapes: ; NOTE: Linux doesn't use all of real_mode_seg, but we use the same ; segment for COMBOOT images, which can use all 64K ; -dosram_k equ (real_mode_seg+0x1000) >> 6 ; Minimum DOS memory (K) int 12h - cmp ax,dosram_k + mov dx,real_mode_seg + 0x1000 + shr dx,6 + cmp ax,dx jae enough_ram + mov ax,dx mov si,err_noram + mov cl,10 + div cl + add [si+err_noram.size-err_noram+2],ah + cbw + div cl + add [si+err_noram.size-err_noram],ax call writestr_early jmp kaboom enough_ram: @@ -76,7 +84,7 @@ skip_checks: section .data16 err_noram db 'It appears your computer has less than ' - asciidec dosram_k +.size db '000' db 'K of low ("DOS")' db CR, LF db 'RAM. Syslinux needs at least this amount to boot. If you get' @@ -84,8 +92,8 @@ err_noram db 'It appears your computer has less than ' db 'this message in error, hold down the Ctrl key while' db CR, LF db 'booting, and I will take your word for it.', CR, LF, 0 - section .text16 + section .text16 ; ; The code to decompress the PM code and initialize other segments. ; |