I am continuing to experiment with the new --model-huge option.
When I try to link files that exceed 64 of code, I get an insufficient
memory error from the linker:
?ASlink-Error-Insufficient ROM/EPROM/FLASH memory.
I assume that I will need to modify the linker script and manually link
the files. I checked the mailing list and the changelist for the latest
snapshot, and didn't see anything that indicates I need to get a newer
snapshot.
My project is very simple, it contains initialization code, a uart
driver and 4 files, called bankster0.c up to bankster3.c. I took a
simple subroutine and stuffed a huge constant into it to fatten up files
to force actual bankswitching.
Each of the banksterX.c files looks more or less like this:
#include <stdio.h>
#include "bankster.h"
void bank_three(void) {
const __code BigDataHog hog = {{ {1} }};
printf( "I have bank %02X.\r\n", PSBANK );
}
And bankster.h:
typedef char OneKArray[1024];
typedef struct {
OneKArray foo[20];
} BigDataHog;
void bank_zero(void);
void bank_one(void);
void bank_two(void);
void bank_three(void);
The command to SDCC at link time is:
sdcc --debug --model-huge --code-loc 0x2800 --code-size 0x1D400
-Iinclude -I../sensor-libs/include -o build/project-name.ihx
build/main.rel build/bankster0.rel build/bankster1.rel
build/bankster2.rel build/bankster3.rel build/char_io.rel
build/core_cpu_init.rel build/serial0.rel
The linker script is:
-w 0x1d400
-z
-b HOME = 0x2800
-b ISEG = 0x0000
-b BSEG = 0x0000
-k c:\Program Files\SDCC-2.9.7\bin\..\lib\huge
-l mcs51
-l libsdcc
-l libint
-l liblong
-l libfloat
build/main.rel
build/bankster0.rel
build/bankster1.rel
build/bankster2.rel
build/bankster3.rel
build/char_io.rel
build/core_cpu_init.rel
build/serial0.rel
-e
My SDCC version is SDCC :
mcs51/gbz80/z80/ds390/pic16/pic14/TININative/ds400/hc08 2.9.7 #5729
(Mar 9 2010) (MINGW32)
------------------------------------------------------------------------------
Download Intel® Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
_______________________________________________
Sdcc-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/sdcc-user
