On Raspberry Pi
by Mark Morgan Lloyd
Is it possible to put OpenFirmware on an SD card and use it to boot off
e.g. a USB-attached mass storage device or using TFTP over a LAN?
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
5 years
- 4
- 10
[commit] r3709 - cpu/ppc
by repository service
Author: wmb
Date: Thu Jan 23 19:18:01 2014
New Revision: 3709
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3709
Log:
PowerPC kernel - fixed bug in isconstant, completing the previous fix.
Modified:
cpu/ppc/kerncode.fth
Modified: cpu/ppc/kerncode.fth
==============================================================================
--- cpu/ppc/kerncode.fth Sun Jan 19 02:21:01 2014 (r3708)
+++ cpu/ppc/kerncode.fth Thu Jan 23 19:18:01 2014 (r3709)
@@ -214,7 +214,7 @@
c;
code isconstant ( n -- )
- literal-to-t0
+ tliteral-to-t0
stw tos,/cf(t0)
pop-tos
c;
6 years
- 1
- 0
[commit] r3708 - cpu/ppc cpu/ppc/ppcsim cpu/x86/Linux forth/wrapper
by repository service
Author: wmb
Date: Sun Jan 19 02:21:01 2014
New Revision: 3708
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3708
Log:
1) Eliminated some C compiler warnings by being strict about return values.
2) Fixed the PowerPC build.
Modified:
cpu/ppc/basefw.bth
cpu/ppc/kerncode.fth
cpu/ppc/ppcsim/ppcsim.c
cpu/x86/Linux/Makefile
cpu/x86/Linux/Makefile.ppcforth
forth/wrapper/logger.c
forth/wrapper/wrapper.c
Modified: cpu/ppc/basefw.bth
==============================================================================
--- cpu/ppc/basefw.bth Sat Jan 11 07:24:15 2014 (r3707)
+++ cpu/ppc/basefw.bth Sun Jan 19 02:21:01 2014 (r3708)
@@ -69,6 +69,8 @@
fload ${BP}/ofw/fs/cdfs/loadpkg.fth \ ISO 9660 CD-ROM file system reader
end-support-package
+fload ${BP}/ofw/disklabel/gpttools.fth
+
support-package: disk-label
fload ${BP}/ofw/disklabel/loadpkg.fth \ Disk label package
end-support-package
Modified: cpu/ppc/kerncode.fth
==============================================================================
--- cpu/ppc/kerncode.fth Sat Jan 11 07:24:15 2014 (r3707)
+++ cpu/ppc/kerncode.fth Sun Jan 19 02:21:01 2014 (r3708)
@@ -88,6 +88,7 @@
:-h skip-branch " addi ip,ip,/branch" evaluate ;-h
:-h literal-to-tos " lwzu tos,/token(ip)" evaluate ;-h
:-h literal-to-t0 " lwzu t0,/token(ip)" evaluate ;-h
+:-h tliteral-to-t0 " lwzu t0,/token(ip) add t0,t0,base" evaluate ;-h
:-h rdrop " addi rp,rp,1cell" evaluate ;-h
:-h rdrop3 " addi rp,rp,3cells" evaluate ;-h
@@ -191,21 +192,22 @@
meta definitions
code isdefer ( xt -- )
- literal-to-t0
+ tliteral-to-t0
lwz t0,/cf(t0) \ User number in t0
+ subfc tos,base,tos
stwx tos,t0,up
pop-tos
c;
code isvalue ( n -- )
- literal-to-t0
+ tliteral-to-t0
lwz t0,/cf(t0) \ User number in t0
stwx tos,t0,up
pop-tos
c;
code isuser ( n -- )
- literal-to-t0
+ tliteral-to-t0
lwz t0,/cf(t0) \ User number in t0
stwx tos,t0,up
pop-tos
@@ -218,7 +220,7 @@
c;
code isvariable ( n -- )
- literal-to-t0
+ tliteral-to-t0
stw tos,/cf(t0)
pop-tos
c;
@@ -384,6 +386,15 @@
pop-tos
c;
+\ ($endof) is the same as branch, and ($endcase) is the same as drop,
+\ but redefining them this way makes the decompiler much easier.
+code ($endof) (s -- )
+ take-branch
+c;
+code ($endcase) (s n -- )
+ pop-tos
+c;
+
assembler
mlabel dofalse
addi tos,r0,0
@@ -762,6 +773,145 @@
pop2
c;
+\ Find the first occurence of bvalue, returning the residual string
+code bscan ( adr len bvalue -- adr' len' )
+ mr t1,tos \ t1:bvalue
+ lwz tos,0(sp) \ tos:len
+ addi sp,sp,1cell \ Move stack pointer by one
+
+ cmpi 0,0,tos,0 0= if \ Bail out if len=0
+ next
+ then
+
+ lwz t0,0(sp) \ t0:adr
+
+ addi t0,t0,-1 \ Account for pre-incrementing
+ begin
+ lbzu t2,1(t0)
+ cmp 0,0,t1,t2 = if
+ stw t0,0(sp)
+ next
+ then
+ addic. tos,tos,-1
+ 0= until
+
+ addi t0,t0,1
+ stw t0,0(sp)
+c;
+
+code wscan ( adr len wvalue -- adr' len' )
+ mr t1,tos \ t1:lvalue
+ lwz tos,0(sp) \ tos:len
+ addi sp,sp,1cell \ Move stack pointer by one
+
+ cmpi 0,0,tos,0 0= if \ Bail out if len=0
+ next
+ then
+
+ lwz t0,0(sp) \ t0:adr
+
+ addi t0,t0,-2 \ Account for pre-incrementing
+ begin
+ lhzu t2,2(t0)
+ cmp 0,0,t1,t2 = if
+ stw t0,0(sp)
+ next
+ then
+ addic. tos,tos,-2
+ 0= until
+
+ addi t0,t0,2
+ stw t0,0(sp)
+c;
+
+code lscan ( adr len lvalue -- adr' len' )
+ mr t1,tos \ t1:lvalue
+ lwz tos,0(sp) \ tos:len
+ addi sp,sp,1cell \ Move stack pointer by one
+
+ cmpi 0,0,tos,0 0= if \ Bail out if len=0
+ next
+ then
+
+ lwz t0,0(sp) \ t0:adr
+
+ addi t0,t0,-4 \ Account for pre-incrementing
+ begin
+ lwzu t2,4(t0)
+ cmp 0,0,t1,t2 = if
+ stw t0,0(sp)
+ next
+ then
+ addic. tos,tos,-4
+ 0= until
+
+ addi t0,t0,4
+ stw t0,0(sp)
+c;
+
+\ Skip initial occurrences of bvalue, returning the residual length
+code bskip ( adr len bvalue -- residue )
+ mr t1,tos \ t1:bvalue
+ lwz tos,0(sp) \ tos:len
+ lwz t0,1cell(sp) \ t0:adr
+ addi sp,sp,2cells \ Move stack pointer by two
+
+ cmpi 0,0,tos,0 0= if \ Bail out if len=0
+ next
+ then
+
+ addi t0,t0,-1 \ Account for pre-incrementing
+ begin
+ lbzu t2,1(t0)
+ cmp 0,0,t1,t2 <> if
+ next
+ then
+ addic. tos,tos,-1
+ 0= until
+c;
+
+\ Skip initial occurrences of wvalue, returning the residual length
+code wskip ( adr len wvalue -- residue )
+ mr t1,tos \ t1:bvalue
+ lwz tos,0(sp) \ tos:len
+ lwz t0,1cell(sp) \ t0:adr
+ addi sp,sp,2cells \ Move stack pointer by two
+
+ cmpi 0,0,tos,0 0= if \ Bail out if len=0
+ next
+ then
+
+ addi t0,t0,-2 \ Account for pre-incrementing
+ begin
+ lhzu t2,2(t0)
+ cmp 0,0,t1,t2 <> if
+ next
+ then
+ addic. tos,tos,-2
+ 0= until
+c;
+
+\ Skip initial occurrences of bvalue, returning the residual length
+code lskip ( adr len lvalue -- residue )
+ mr t1,tos \ t1:bvalue
+ lwz tos,0(sp) \ tos:len
+ lwz t0,1cell(sp) \ t0:adr
+ addi sp,sp,2cells \ Move stack pointer by two
+
+ cmpi 0,0,tos,0 0= if \ Bail out if len=0
+ next
+ then
+
+ addi t0,t0,-4 \ Account for pre-incrementing
+ begin
+ lwzu t2,4(t0)
+ cmp 0,0,t1,t2 <> if
+ next
+ then
+ addic. tos,tos,-4
+ 0= until
+c;
+
code noop (s -- ) c;
code lowbyte (s n -- low ) andi. tos,tos,h#ff c;
Modified: cpu/ppc/ppcsim/ppcsim.c
==============================================================================
--- cpu/ppc/ppcsim/ppcsim.c Sat Jan 11 07:24:15 2014 (r3707)
+++ cpu/ppc/ppcsim/ppcsim.c Sun Jan 19 02:21:01 2014 (r3708)
@@ -1805,19 +1805,19 @@
power:
if (!TBAR)
printf("Unimplemented POWER instruction %08lx (%s) at %lx\n",
- (long)instruction, (long)opname, (long)CIA);
+ (long)instruction, opname, (long)CIA);
goto trapout;
unimplemented:
if (!TBAR)
printf("Unimplemented instruction %08lx (%s)at %lx\n",
- (long)instruction, (long)opname, (long)CIA);
+ (long)instruction, opname, (long)CIA);
goto trapout;
illegal:
if (!TBAR)
printf("Illegal instruction %08lx at %lx\n",
- (long)instruction, (long)CIA, (long)0);
+ (long)instruction, (long)CIA);
trapout:
if (TBAR) {
@@ -1875,7 +1875,7 @@
" r0 r1 r2 r3 r4 r5\n"
);
printf(
- "%8x %8x %8x %8x %8x %8x\n\n",
+ "%8lx %8lx %8lx %8lx %8lx %8lx\n\n",
greg[ 0], greg[ 1], greg[ 2], greg[ 3], greg[ 4], greg[ 5]
);
@@ -1883,7 +1883,7 @@
" r6 r7 r8 r9 r10 r11\n"
);
printf(
- "%8x %8x %8x %8x %8x %8x\n\n",
+ "%8lx %8lx %8lx %8lx %8lx %8lx\n\n",
greg[ 6], greg[ 7], greg[ 8], greg[ 9], greg[10], greg[11]
);
#endif
@@ -1891,24 +1891,24 @@
" r20 t0 r21 t1 r22 t2 r23 t3 r24 t4 r25 t5\n"
);
printf(
- "%8x %8x %8x %8x %8x %8x\n\n",
+ "%8lx %8lx %8lx %8lx %8lx %8lx\n\n",
greg[20], greg[21], greg[22], greg[23], greg[24], greg[25]
);
printf(
" r26 base r27 up r28 tos r29 ip r30 rp r31 sp\n"
);
printf(
- "%8x %8x %8x %8x %8x %8x\n\n",
+ "%8lx %8lx %8lx %8lx %8lx %8lx\n\n",
greg[26], greg[27], greg[28], greg[29], greg[30], greg[31]
);
- printf("pc %x LR %x CTR %x CR %x",
- pc, LR, CTR, CR.all
+ printf("pc %lx LR %lx CTR %lx CR %lx",
+ pc, LR, CTR, CR.all
);
#ifndef SIMROM
- printf(" CALLS: %x", greg[29] /* IP */);
+ printf(" CALLS: %lx", greg[29] /* IP */);
if (greg[30])
- printf(" %x %x %x",
+ printf(" %lx %lx %lx",
((u_long *)greg[30])[0], /* Return stack */
((u_long *)greg[30])[1],
((u_long *)greg[30])[2]
@@ -1919,13 +1919,13 @@
dumpallregs()
{
int i;
- for (i=0; i<8 ; i++) printf("%9x", greg[i]); putchar('\n');
- for ( ; i<16; i++) printf("%9x", greg[i]); putchar('\n');
- for ( ; i<24; i++) printf("%9x", greg[i]); putchar('\n');
- for ( ; i<32; i++) printf("%9x", greg[i]); putchar('\n');
+ for (i=0; i<8 ; i++) printf("%9lx", greg[i]); putchar('\n');
+ for ( ; i<16; i++) printf("%9lx", greg[i]); putchar('\n');
+ for ( ; i<24; i++) printf("%9lx", greg[i]); putchar('\n');
+ for ( ; i<32; i++) printf("%9lx", greg[i]); putchar('\n');
- printf("pc %x LR %x CTR %x CR %x ",
- pc, LR, CTR, CR.all
+ printf("pc %lx LR %lx CTR %lx CR %lx ",
+ pc, LR, CTR, CR.all
);
printf("\n");
}
@@ -1956,7 +1956,7 @@
u_long *reladr;
reladr = (u_long *) &xmem[ (int)adr ];
- printf("%x: %8x %8x %8x %8x %8x %8x %8x %8x\n",
+ printf("%lx: %8lx %8lx %8lx %8lx %8lx %8lx %8lx %8lx\n",
adr,
reladr[0], reladr[1], reladr[2], reladr[3],
reladr[4], reladr[5], reladr[6], reladr[7]
@@ -1983,7 +1983,7 @@
IABR = 0;
stepping = 1;
- printf("%x %x %s ", pc, greg[29], name);
+ printf("%lx %lx %s ", pc, greg[29], name);
for (done=0; !done; ) {
printf(" : ");
#ifndef SIMROM
@@ -1994,13 +1994,14 @@
#endif
switch(c)
{
- case 'b': scanf("%x", &IABR); stepping = 0; break;
+ int res;
+ case 'b': res = scanf("%lx", &IABR); stepping = 0; break;
case 'n': IABR = greg[27]; stepping = 0; break;
- case 'u': scanf("%x", &arg);
+ case 'u': res = scanf("%x", &arg);
dumpmem((long)(greg[27]+arg));
GETLINE;
break;
- case 'm': scanf("%x", &arg);
+ case 'm': res = scanf("%x", &arg);
dumpmem((long)arg);
GETLINE;
break;
Modified: cpu/x86/Linux/Makefile
==============================================================================
--- cpu/x86/Linux/Makefile Sat Jan 11 07:24:15 2014 (r3707)
+++ cpu/x86/Linux/Makefile Sun Jan 19 02:21:01 2014 (r3708)
@@ -44,7 +44,7 @@
@ln -sf forth x86forth
xinflate.lo: ${ZIPDIR}/inflate.c
- ${CC} -c ${MFLAGS} -Wall -fno-stack-protector -ffreestanding -D_FORTIFY_SOURCE=0 -DNEED_BCOPY -O3 -fpic $< -o $@
+ ${CC} -c ${MFLAGS} -Wall -fno-builtin -fno-stack-protector -ffreestanding -DNEED_BCOPY -O2 -fpic $< -o $@
xinflate.o: xinflate.lo
${LD} -melf_i386 -T inflate.ld $< -o $@
Modified: cpu/x86/Linux/Makefile.ppcforth
==============================================================================
--- cpu/x86/Linux/Makefile.ppcforth Sat Jan 11 07:24:15 2014 (r3707)
+++ cpu/x86/Linux/Makefile.ppcforth Sun Jan 19 02:21:01 2014 (r3708)
@@ -5,6 +5,8 @@
BP=../../..
CFLAGS = -DPPCSIM -DTARGET_POWERPC
+CFLAGS += -m32
+LFLAGS += -m32
CC = gcc
Modified: forth/wrapper/logger.c
==============================================================================
--- forth/wrapper/logger.c Sat Jan 11 07:24:15 2014 (r3707)
+++ forth/wrapper/logger.c Sun Jan 19 02:21:01 2014 (r3708)
@@ -241,6 +241,7 @@
void log_command_line(int argc, char *argv[])
{
int i;
+ char *pret;
char cwdbuf[MAXPATHLEN*2];
#ifdef __unix__
@@ -278,7 +279,7 @@
sprintf(info, "host: %s\n", hostname);
record(&misc);
- getcwd(cwdbuf, 128);
+ pret = getcwd(cwdbuf, 128);
sprintf(info, "cwd: %s\n", cwdbuf);
record(&misc);
}
Modified: forth/wrapper/wrapper.c
==============================================================================
--- forth/wrapper/wrapper.c Sat Jan 11 07:24:15 2014 (r3707)
+++ forth/wrapper/wrapper.c Sun Jan 19 02:21:01 2014 (r3708)
@@ -326,10 +326,6 @@
extern void log_command_line(int, char **);
extern void log_env(char *, char *);
-#if !defined(LinuxPOWERPC) && !defined(__APPLE__)
- extern int read(), write();
-#endif
-
INTERNAL char * substr();
INTERNAL long path_open();
INTERNAL void keymode();
@@ -348,7 +344,11 @@
long c_key();
long s_bye();
void restoremode();
+#ifdef PPCSIM
+ void simulate(char *, char *, char *, long (**)(), char *, int, char **, int);
+#else
void simulate(char *, char *, char *, long (**)(), char *, int, char **);
+#endif
long find(long, int, long, char *);
#else
INTERNAL long c_key();
@@ -710,12 +710,14 @@
void
set_bp(void)
{
+ char *pret;
+ int ret;
char here[MAXPATHLEN];
- getcwd(here, MAXPATHLEN);
- getcwd(bpval, MAXPATHLEN);
+ pret = getcwd(here, MAXPATHLEN);
+ pret = getcwd(bpval, MAXPATHLEN);
while (1) {
if (access(host_cpu, F_OK) == 0) {
- getcwd(hostdirval, MAXPATHLEN);
+ pret = getcwd(hostdirval, MAXPATHLEN);
strcat(hostdirval, "/");
strcat(hostdirval, host_cpu);
strcat(hostdirval, "/");
@@ -723,14 +725,14 @@
}
if (access("ofw", F_OK) == 0)
break;
- chdir("..");
- getcwd(bpval, MAXPATHLEN);
+ ret = chdir("..");
+ pret = getcwd(bpval, MAXPATHLEN);
if (strcmp(bpval, "/") == 0) {
bpval[0] = '\0';
break;
}
}
- chdir(here);
+ ret = chdir(here);
}
struct woptions { char *dashopt; char *forthopt; } woptions[] =
@@ -1112,6 +1114,7 @@
#endif
#ifdef TARGET_POWERPC
+#ifndef PPCSIM
# ifdef NOGLUE
{ long toc_entry[2]; int c;
toc_entry[1] = 0;
@@ -1127,6 +1130,7 @@
s_bye(0L);
# endif
#endif
+#endif
#ifdef __APPLE_CC__
{
@@ -1694,16 +1698,16 @@
INTERNAL long
c_expect(long max, char *buffer)
{
- int c = 0;
+ int c = 0, ret;
register char *p = buffer;
linemode();
fflush(stdout);
- read(0, &c, 1);
+ ret = read(0, &c, 1);
while (max-- && c != '\n' && c != EOF ) {
*p++ = c;
- read(0, &c, 1);
+ ret = read(0, &c, 1);
}
keymode();
return ( (long)(p - buffer) );
@@ -1756,9 +1760,10 @@
void
error(char *str1, char *str2)
{
- write(2,str1,strlen(str1));
- write(2,str2,strlen(str2));
- write(2,"\n",1);
+ int ret;
+ ret = write(2,str1,strlen(str1));
+ ret = write(2,str2,strlen(str2));
+ ret = write(2,"\n",1);
}
@@ -1791,11 +1796,11 @@
char output_filename[MAXPATHLEN];
#ifdef USE_STDIO
-#define NONE -1
-int output_fd = NONE;
+ #define NONE (FILE *)0
+ FILE *output_fd = NONE;
#else
-#define NONE (FILE *)0
-FILE *output_fd = NONE;
+ #define NONE -1
+ int output_fd = NONE;
#endif
#ifdef USE_STDIO
@@ -1849,7 +1854,7 @@
if (result != -1) {
strcpy(output_filename, name);
output_fd = result;
- }
+ }
#else
#ifdef __unix__
result = open(expand_name(name), O_RDWR|O_CREAT|O_TRUNC, (int)mode);
@@ -1858,8 +1863,8 @@
#endif
if (result != -1) {
strcpy(output_filename, name);
- output_fd = (FILE *)result;
- }
+ output_fd = result;
+ }
#endif
return((long)result);
}
6 years
- 1
- 0
[commit] r3707 - cpu/x86/pc/olpc/sstools
by repository service
Author: quozl
Date: Sat Jan 11 07:24:15 2014
New Revision: 3707
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3707
Log:
OLPC XO-1 - screenshot tools
Added:
cpu/x86/pc/olpc/sstools/
cpu/x86/pc/olpc/sstools/565.fth
cpu/x86/pc/olpc/sstools/README
cpu/x86/pc/olpc/sstools/bmp.fth
cpu/x86/pc/olpc/sstools/xpm.fth
Added: cpu/x86/pc/olpc/sstools/565.fth
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ cpu/x86/pc/olpc/sstools/565.fth Sat Jan 11 07:24:15 2014 (r3707)
@@ -0,0 +1,47 @@
+\ dump frame buffer in C565 format
+
+dev /display
+: fb-va ( -- fb ) frame-buffer-adr ;
+dend
+
+: ts$ ( -- adr len )
+ time&date >unix-seconds push-decimal 0 <# #s #> pop-base
+;
+
+: putw ( w -- ) wbsplit swap ofd @ fputc ofd @ fputc ;
+
+: fb-save ( file ( -- )
+ writing
+ " C565" ofd @ fputs
+ screen-wh swap putw putw
+ " fb-va" screen-ih $call-method
+ screen-wh swap drop 0 do ( fb )
+ screen-wh drop 0 do ( fb )
+ dup w@ ( fb rgb565 )
+ putw
+ wa1+ ( fb' )
+ loop ( fb' )
+ loop drop ( )
+;
+
+: fb ( -- )
+ ts$
+ " u:\"
+ " fb-save %s%s.565" sprintf
+ screen-ih remove-output
+ 2dup type cr
+ ['] evaluate catch ?dup if nip nip .error then
+ screen-ih add-output
+;
+
+dev /keyboard
+: handler? ( scan-code -- flag )
+ dup h# 73 ( × ) = if fb true exit then
+ handle-volume?
+;
+\ FIXME: during check-alarm, the data stack pointer is in another
+\ place, leading to large negative depth and ?enough failures, in
+\ particular in writing.
+\ ' handler? to scan-handled?
+dend
+
Added: cpu/x86/pc/olpc/sstools/README
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ cpu/x86/pc/olpc/sstools/README Sat Jan 11 07:24:15 2014 (r3707)
@@ -0,0 +1 @@
+screenshot tools for XO-1
Added: cpu/x86/pc/olpc/sstools/bmp.fth
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ cpu/x86/pc/olpc/sstools/bmp.fth Sat Jan 11 07:24:15 2014 (r3707)
@@ -0,0 +1,74 @@
+\ dump XO-1 frame buffer in BMP24 format
+
+dev /display
+: fb-va ( -- fb ) frame-buffer-adr ;
+dend
+
+: ts$ ( -- adr len )
+ time&date >unix-seconds push-decimal 0 <# #s #> pop-base
+;
+
+0 value bmp-width
+0 value bmp-height
+
+h# 36 constant /bmp-hdr
+/bmp-hdr buffer: bmp-hdr
+
+0 value fb-va
+
+: put-plane ( -- )
+ " fb-va" screen-ih $call-method to fb-va
+ bmp-height 0 do
+ bmp-width
+ 0 ?do
+ fb-va w@ ( rgb565 )
+ 565>rgb ( r g b )
+ ofd @ fputc
+ ofd @ fputc
+ ofd @ fputc
+ fb-va wa1+ to fb-va
+ loop
+ loop
+;
+
+: put-header ( -- )
+ " BM" bmp-hdr swap move \ Signature
+ bmp-width 3 * 4 round-up bmp-height *
+ dup bmp-hdr h# 22 + le-l! \ Image size
+ /bmp-hdr + bmp-hdr 2 + le-l! \ File size
+
+ 0 bmp-hdr 6 + le-l! \ Reserved
+ /bmp-hdr bmp-hdr h# 0a + le-l! \ Image data pixel array offset
+ h# 28 bmp-hdr h# 0e + le-l! \ Some variant of header size
+ bmp-width bmp-hdr h# 12 + le-l!
+ bmp-height negate bmp-hdr h# 16 + le-l! \ Pixel array order top to bottom
+ 1 bmp-hdr h# 1a + le-w! \ Planes
+ d# 24 bmp-hdr h# 1c + le-w! \ Bits per pixel
+ 0 bmp-hdr h# 1e + le-l! \ Compression
+
+ d# 2835 bmp-hdr h# 26 + le-l! \ X pixels/meter
+ d# 2835 bmp-hdr h# 2a + le-l! \ Y pixels/meter
+ 0 bmp-hdr h# 2e + le-l! \ Colors used
+ 0 bmp-hdr h# 32 + le-l! \ Colors important
+
+ bmp-hdr /bmp-hdr ofd @ fputs
+;
+
+: fb-save
+ writing
+ screen-wh to bmp-height to bmp-width
+
+ put-header
+ put-plane
+ ofd @ fclose
+;
+
+: fb ( -- )
+ ts$
+ " u:\"
+ " fb-save %s%s.bmp" sprintf
+ screen-ih remove-output
+ 2dup type cr
+ ['] evaluate catch ?dup if nip nip .error then
+ screen-ih add-output
+;
Added: cpu/x86/pc/olpc/sstools/xpm.fth
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ cpu/x86/pc/olpc/sstools/xpm.fth Sat Jan 11 07:24:15 2014 (r3707)
@@ -0,0 +1,111 @@
+\ save frame buffer in open firmware for screen shots (serial, X bitmap)
+
+dev /display
+: fb-va ( -- fb ) frame-buffer-adr ;
+dend
+
+: .xx ( b -- ) 0 <# # # #> type ;
+
+\ colour table,
+\ list of unique colours in frame buffer
+0 value ct \ address of table
+d# 62 value /ct \ entries in table (and alphabet utilisation, @-~)
+ \ d# 62 is insufficient for menu
+h# 0 value nct \ next entry to use in table
+
+\ borrowed from screen-ih
+d# 1200 value width
+d# 900 value height
+h# 0 value fb-va
+
+: ct-free ( -- )
+ ct /ct /w* free-mem
+;
+
+: ct-alloc ( -- )
+ /ct /w* alloc-mem to ct
+;
+
+: ct-init ( -- )
+ " fb-va" screen-ih $call-method to fb-va
+ ct /ct /w* erase
+ h# 0 to nct
+;
+
+: ct-dump ( -- ) \ dump colour table
+ nct if
+ nct 0 do
+ i . ct i wa+ w@ 565>rgb ( r g b ) rot . swap . . cr
+ loop
+ then
+;
+
+: ct-add ( pixel -- ) \ add a colour to the table if not already in table
+ nct if
+ nct 0 do ( pixel )
+ ct i wa+ w@ over = if ( pixel ) \ found
+ drop unloop exit ( ) \ no action required
+ then
+ loop ( pixel ) \ not found
+ then
+ nct /ct < if ( pixel )
+ ct nct wa+ w! ( ) \ store entry
+ nct 1+ to nct ( ) \ increment next slot
+ else
+ abort" ct: too many colours in frame buffer"
+ then
+;
+
+: ct-scan ( -- ) \ survey what colours are used
+ fb-va ( fb )
+ height 0 do ( fb )
+ width 0 do ( fb' )
+ dup w@ ct-add 2+ ( fb' )
+ loop ( fb' )
+ loop drop ( )
+;
+
+: xpm-head ( -- )
+ ." ! XPM2" cr
+ width .d height .d
+ nct .d 1 .d cr
+ nct 0 do
+ i h# 40 + emit
+ ." c #"
+ ct i wa+ w@ 565>rgb ( r g b ) rot .xx swap .xx .xx cr
+ loop
+;
+
+: xpm-body ( -- )
+ fb-va ( fb )
+ height 0 do ( fb )
+ width 0 do ( fb )
+ dup w@ ( fb pixel )
+ nct 0 do ( fb pixel )
+ ct i wa+ w@ over = if ( fb pixel ) \ found
+ i h# 40 + emit ( fb pixel )
+ leave ( fb pixel )
+ then
+ loop ( fb pixel ) \ not found
+ drop ( fb )
+ wa1+ ( fb' )
+ loop cr ( fb' )
+ loop drop ( )
+;
+
+: .xpm2 \ 256 colour from 16bpp
+ ct-alloc
+ ct-init
+ ct-scan
+ xpm-head
+ xpm-body
+ ct-free
+;
+
+: fb-save ( file ( -- )
+ to-file .xpm2
+;
+
+: ts$ ( -- adr len )
+ time&date >unix-seconds push-decimal 0 <# #s #> pop-base
+;
6 years
- 1
- 0