[lwip-users] RE: [lwip] Using lwIP with CS8900A on Atmel 89C51

[DASILVA VINCENTE BIT]

Hello

I have ported lwip with ucOS as the HAL to 8051 with Keil 6.20c.
I am having problems with the optimisation, the only way I can fit the code
into 64k is with optimisation level 9. When running the program there seems
to be bugs in the code generated by the compiler.

Could you tell me more about the statement you made
I have to compile using level 6 'cause my emulator (that I usually 
steal at the end of the day :-)) doesn't work with higher levels.

Thanks
Vicente

-----Original Message-----
From: address@hidden [mailto:address@hidden
Sent: 05 February 2002 05:00 PM
To: address@hidden
Subject: Re: [lwip] Using lwIP with CS8900A on Atmel 89C51


Hi,

this is a small code size report (Keil 6.22, optim. level 6):

Libraries and misc:

?C_INITSEG                      3554 bytes
?C?LIB_CODE                     2079 bytes
?C_C51STARTUP                   140 bytes
?CO?HTTP                        111 bytes
?CO?CS8900A                     5 bytes

Total:                          5789 bytes


lwIP:

_main.lst(10292):       CODE SIZE        =    226 
arp.lst(5158):          CODE SIZE        =   2044 
Cs8900a.lst(5498):      CODE SIZE        =    476 
datarate.lst(6156):     CODE SIZE        =    683 
ethernet.lst(8719):     CODE SIZE        =   2611 
http.lst(7950):         CODE SIZE        =   1691 
icmp.lst(5517):         CODE SIZE        =   1519 
inet.lst(2867):         CODE SIZE        =   1404 
ip.lst(9334):           CODE SIZE        =   2248 
ip_addr.lst(1405):      CODE SIZE        =   ---- 
lib_arch.lst(704):      CODE SIZE        =    173 
mem.lst(4574):          CODE SIZE        =   2551 
memp.lst(11191):        CODE SIZE        =   1812 
netif.lst(2938):        CODE SIZE        =    303 
pbuf.lst(6318):         CODE SIZE        =   3821 
serial.lst(1297):       CODE SIZE        =     29 
stats.lst(1876):        CODE SIZE        =     14 
sys.lst(1374):          CODE SIZE        =   ---- 
sys_8051.lst(1646):     CODE SIZE        =     27 
tcp.lst(12737):         CODE SIZE        =   5507 
tcp_in.lst(17362):      CODE SIZE        =  11275 
tcp_out.lst(11724):     CODE SIZE        =   6425 
timer.lst(1117):        CODE SIZE        =    251 

Total:                                      39310 bytes


I left some stuff like printf, putchar, ...
I have to compile using level 6 'cause my emulator (that I usually 
steal at the end of the day :-)) doesn't work with higher levels.


Andrea
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