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From: cvs at opencores.org<cvs@o...>
Date: Wed Mar 28 07:38:01 CEST 2007
Subject: [cvs-checkins] MODIFIED: mlite ...
Date: 00/07/03 28:07:38

Modified: mlite/tools convert.c makefile no_os.c opcodes.asm pi.c
Log:
Use linker values _gp, __bss_start, _end, and InitStack


Revision Changes Path
1.14 mlite/tools/convert.c

http://www.opencores.org/cvsweb.shtml/mlite/tools/convert.c.diff?r1=1.13&r2=1.14

(In the diff below, changes in quantity of whitespace are not shown.)

Index: convert.c
===================================================================
RCS file: /cvsroot/rhoads/mlite/tools/convert.c,v
retrieving revision 1.13
retrieving revision 1.14
diff -u -b -r1.13 -r1.14
--- convert.c 12 Feb 2007 05:15:53 -0000 1.13
+++ convert.c 28 Mar 2007 05:38:01 -0000 1.14
@@ -205,6 +205,7 @@
if(gp_ptr == 0)
gp_ptr = gp_ptr_backup + 0x7ff0;

+#if 0
/*Initialize the $gp register for sdata and sbss */
printf("gp_ptr=0x%x ", gp_ptr);
/*modify the first opcodes in boot.asm */
@@ -229,6 +230,7 @@
printf("SP=0x%x\n", stack_pointer);
set_low(code, 24, stack_pointer >> 16);
set_low(code, 28, stack_pointer & 0xffff);
+#endif

/*write out test.bin */
outfile = fopen("test.bin", "wb");
@@ -244,6 +246,7 @@
}
fclose(txtfile);
free(buf);
+ printf("\n");

return 0;
}



1.17 mlite/tools/makefile

http://www.opencores.org/cvsweb.shtml/mlite/tools/makefile.diff?r1=1.16&r2=1.17

(In the diff below, changes in quantity of whitespace are not shown.)

Index: makefile
===================================================================
RCS file: /cvsroot/rhoads/mlite/tools/makefile,v
retrieving revision 1.16
retrieving revision 1.17
diff -u -b -r1.16 -r1.17
--- makefile 13 Feb 2007 19:51:05 -0000 1.16
+++ makefile 28 Mar 2007 05:38:01 -0000 1.17
@@ -29,7 +29,7 @@


all: convert_bin.exe tracehex.exe bintohex.exe ram_image.exe
- @echo make targets = count, opcodes, pi, test, run, tohex, toimage, rtos
+ @echo make targets = count, opcodes, pi, test, run, tohex, toimage

clean:
-$(RM) *.o *.obj *.map *.lst *.hex *.txt



1.2 mlite/tools/no_os.c

http://www.opencores.org/cvsweb.shtml/mlite/tools/no_os.c.diff?r1=1.1&r2=1.2

(In the diff below, changes in quantity of whitespace are not shown.)

Index: no_os.c
===================================================================
RCS file: /cvsroot/rhoads/mlite/tools/no_os.c,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- no_os.c 6 Mar 2006 01:59:54 -0000 1.1
+++ no_os.c 28 Mar 2007 05:38:01 -0000 1.2
@@ -3,6 +3,8 @@
#define MemoryRead(A) (*(volatile unsigned int*)(A))
#define MemoryWrite(A,V) *(volatile unsigned int*)(A)=(V)

+int InitStack[128]; //used by boot.asm
+
void putchar(int value)
{
while((MemoryRead(IRQ_STATUS) & IRQ_UART_WRITE_AVAILABLE) == 0)



1.12 mlite/tools/opcodes.asm
http://www.opencores.org/cvsweb.shtml/mlite/tools/opcodes.asm.diff?r1=1.11&r2=1.12 (In the diff below, changes in quantity of whitespace are not shown.) Index: opcodes.asm =================================================================== RCS file: /cvsroot/rhoads/mlite/tools/opcodes.asm,v retrieving revision 1.11 retrieving revision 1.12 diff -u -b -r1.11 -r1.12 --- opcodes.asm 14 Feb 2007 19:02:14 -0000 1.11 +++ opcodes.asm 28 Mar 2007 05:38:01 -0000 1.12 @@ -20,17 +20,11 @@ entry: .set noreorder - #These four instructions must be the first instructions - #convert.exe will correctly initialize $gp - lui $gp,0 - ori $gp,$gp,0 - #convert.exe will set $4=.sbss_start $5=.bss_end - lui $4,0 - ori $4,$4,0 - lui $5,0 - ori $5,$5,0 - lui $sp,0 - ori $sp,$sp,0xfff0 + la $gp, _gp #initialize stack pointer + la $4, __bss_start #$4 = .sbss_start + la $5, _end #$5 = .bss_end + nop #no stack needed + nop b StartTest nop #nops required to place ISR at 0x3c 1.3 mlite/tools/pi.c http://www.opencores.org/cvsweb.shtml/mlite/tools/pi.c.diff?r1=1.2&r2=1.3 (In the diff below, changes in quantity of whitespace are not shown.) Index: pi.c =================================================================== RCS file: /cvsroot/rhoads/mlite/tools/pi.c,v retrieving revision 1.2 retrieving revision 1.3 diff -u -b -r1.2 -r1.3 --- pi.c 6 Mar 2006 01:59:54 -0000 1.2 +++ pi.c 28 Mar 2007 05:38:01 -0000 1.3 @@ -1,5 +1,7 @@ /*Calculate the value of PI. Takes a long time!*/ #ifndef WIN32 +int InitStack[128]; //used by boot.asm + void putchar(char ch) { *(int*)0x20000000 = ch;