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From: | Sebastian Herbszt |
Subject: | [Qemu-devel] Re: [Bochs-developers] [PATCH v2 4/6] Execute rombios32 code fromromaddress 0xe0000. |
Date: | Mon, 10 Nov 2008 20:25:07 +0100 |
Gleb Natapov wrote:
On Sat, Nov 08, 2008 at 12:20:56AM +0100, Sebastian Herbszt wrote:diff --git a/bios/rombios32start.S b/bios/rombios32start.S index 601e2b0..1900261 100644 --- a/bios/rombios32start.S +++ b/bios/rombios32start.S @@ -32,10 +32,17 @@ _start: /* clear bss section */ xor %eax, %eax mov $__bss_start, %edi - mov $_end, %ecx + mov $__bss_end, %ecx sub %edi, %ecx rep stosbWe do overwrite data at 0x700 here. Is this acceptable for S3 resume?First page is reserved for BIOS use.
I might have missed something, but Ralf Brown's MEMORY MAP Release 61 says "MEM 0070h:0000h - DOS 2+ IO.SYS LOAD ADDRESS". Which specification do you refer to? - Sebastian
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