[SerialICE] SerialICE_memory_read_filter problem

[Stefan Reinauer]

On 5/9/11 1:36 PM, Nils wrote:
> Hi,
> I have been trying to run my Wyse S50 rom in SerialICE and i have been able to
> pass Warm Reset with the following patch in serialice.lua
> (SerialICE_msr_write_filter):
>
>> 	-- **********************************************************
>> 	--
>> 	-- Wyse S50 WARM_RESET filter
>>
>> 	if addr == 0x4c000014 then
>> 		lo = bit.band(0x00000001, lo);
>> 		if lo == 0x00000001 then
>> 			printf("WARM_RESET (filtered)\n")
>> 			SerialICE_system_reset()
>> 			return false, hi, lo
>> 		end
>> 	end
> But i have some troubles further on in a loop in what i think is a TSC
> calibration routine.
> I think there is a speed problem that prohibits leaving the loop.
> I would like to skip the loop and tried with the following patch in
> SerialICE_memory_read_filter :
>
>> 	if addr == 0x000f8978 then

do you want to check for eip here? I guess there is no memory read 
instruction accessing f8978

>> 		-- **********************************************************
>> 		--
>> 		-- Wyse S50 skip TSC calibration loop
>> 		printf("Skipping TSC calibration loop...\n")
>> 		regs.eip = 0xa1c0
>> 		return false, true, 0
>> 	elseif	addr>= 0xfff00000 and addr<= 0xffffffff then
>> 		-- ROM accesses go to Qemu only
>> 		return false, true, 0
> I want to skip from 0x000f8978 to 0x000fa1c0 (adresses taken from GDB
> debugging) but the printf never shows.
> Could someone give me a hint at what i am doing wrong?
>
> Thanks ,Nils.
>
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