Hi,
1. How are the SFR's defined? Are you using both the "sfr" and "at"
keyword? Are you trying to initialize them in the same line where
they are defined?
2. Where does "-b CSEG = 0x0000" come from? SDCC no longer
automatically uses that line. It uses "-b HOME = 0x0000" instead.
Maarten
> Moving a 8051 project for EZUSB (Cypress FX2LP CY7C68013A) from SDCC version
> 2.3.8 to 2.7.0 encounted two linker problems:
>
> 1. wrongly counts the SFR space in the DATA memory size as a result
> displayes "Insufficient space in data memory."
> as\link\mcs51\lkmem.c line: 182
>
> 2. the program won't run if the start address of the code segment is
> specified, the "_main" will be mapped to address 0x0000 instead of the "sdcc
> statup function"
> don't give "-b CSEG = 0x0000" for "aslink"
>
>
> ///////////////////////////// 1. SFR to DSEG bug //////////////////////
>
> Name Start End Size Max
> ---------------- -------- -------- -------- --------
> DATA 0x08 0xe5 222 128
> ---------------- -------- -------- -------- --------
> TOTAL: 0x00 0xe5 230 128
> *** ERROR: Insufficient space in data memory. 102 bytes short.
> Stack starts at: 0x6e (sp set to 0x6d).
> *** ERROR: Stack overlaps area 'DATA'
>
> //////////////////////////////
> /////////////////////////////////////////////////////////////////////////////////
> as\link\mcs51\lkmem.c
> line:182
>
> /////////////////////
> wrong:
>
> /*If is not a register bank, bit, stack, or idata, then it should be
> data*/
> else if((xp->a_flag & (A_CODE|A_BIT|A_XDATA))==0)
> {
> if(xp->a_size)
> {
> Ram[6].Size+=xp->a_size;
> if(xp->a_addr<Ram[6].Start) Ram[6].Start=xp->a_addr;
> }
> }
>
> /////////////////////
> good (copied from version 2.4.0):
>
> else if ( EQ(xp->a_id, "DSEG") || EQ(xp->a_id, "OSEG") )
> {
> Ram[6].Size+=xp->a_size;
> if(xp->a_addr<Ram[6].Start) Ram[6].Start=xp->a_addr;
> }
>
> //////////////////////////// 2. no CSEG for aslink
> //////////////////////////
>
> wrong:
> Area Addr Size Decimal Bytes (Attributes)
> -------------------------------- ---- ---- ------- ----- ------------
> CSEG 0000 1CA7 = 7335. bytes
> (REL,CON,CODE)
>
> Value Global
> -------- --------------------------------
> 0C:0000 _main
>
> good:
> Area Addr Size Decimal Bytes (Attributes)
> -------------------------------- ---- ---- ------- ----- ------------
> CSEG 00CC 1CA7 = 7335. bytes
> (REL,CON,CODE)
>
> Value Global
> -------- --------------------------------
> 0C:00CC _main
>
>
> --
> Kovacs Laszlo Attila
> Digilent RO
> [EMAIL PROTECTED]
>
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