From 7659673f33303ffcadaa282e8cb8ba292de302d3 Mon Sep 17 00:00:00 2001 From: Bas Wijnen Date: Thu, 5 Aug 2010 22:19:58 +0200 Subject: [PATCH] start wrapper; proper serial port baudrate --- .gitignore | 4 +- Makefile | 2 +- iris.hhp | 46 +++++++- mips/boot.S | 2 +- mips/nanonote/Makefile.arch | 27 +++-- mips/nanonote/board.ccp | 9 +- mips/nanonote/jz4740.hhp | 8 +- mips/nanonote/server/Makefile.am | 2 +- mips/nanonote/server/usb-server.ccp | 20 ++-- mips/start.S | 46 ++++++++ source/nand.ccp | 162 ++++++++++++++++++++-------- 11 files changed, 250 insertions(+), 78 deletions(-) create mode 100644 mips/start.S diff --git a/.gitignore b/.gitignore index 5bdeab1..dbbd4db 100644 --- a/.gitignore +++ b/.gitignore @@ -1,11 +1,11 @@ iris -iris.raw -iris.raw.gz uimage *.o *.elf *.cc *.hh +*.gz +*.raw source/charset.data mips/nanonote/sdram-setup.raw nanonote-boot diff --git a/Makefile b/Makefile index e494153..164b4ef 100644 --- a/Makefile +++ b/Makefile @@ -60,7 +60,7 @@ clean: rm -rf fs/ debug: - stty -F $(SERIAL) raw 9600 + stty -F $(SERIAL) raw 57600 while : ; do cat $(SERIAL) ; done .PHONY: clean diff --git a/iris.hhp b/iris.hhp index ab3b547..42d34cb 100644 --- a/iris.hhp +++ b/iris.hhp @@ -591,9 +591,9 @@ Iris::Num start () #ifndef __KERNEL__ #if 1 // Use a define instead of an inline function, because this is better visible in disassembly, even when not optimizing. -#define kdebug_char(c) do { unsigned d = (c); __asm__ volatile ("move $a0, $zero\nlw $a1, %0\nbreak" :: "m"(d) : "a0", "a1", "memory"); } while (0) +#define kdebug_char(_c) do { unsigned _d = (_c); __asm__ volatile ("move $a0, $zero\nlw $a1, %0\nbreak" :: "m"(_d) : "a0", "a1", "memory"); } while (0) #else -#define kdebug_char(c) do {} while (0) +#define kdebug_char(_c) do {} while (0) #endif #define kdebug(str) do { const char *s = (str); while (*s) { kdebug_char (*s); ++s; } } while (0) #define __stringify2(x) #x @@ -602,7 +602,7 @@ Iris::Num start () static void kdebug_num (unsigned n, unsigned digits = 8): unsigned i - const char *encode = "0123456789abcdef" + char const *encode = "0123456789abcdef" for i = 0; i < digits; ++i: kdebug_char (encode[(n >> (4 * ((digits - 1) - i))) & 0xf]) @@ -620,5 +620,45 @@ namespace Iris: while true: wait () + inline void debug_num (unsigned num, unsigned base): + char const *encode = "0123456789abcdef" + unsigned digits = 1 + unsigned power = base + while power <= num: + power *= base + ++digits + for unsigned i = 0; i < digits; ++i: + power /= base + unsigned d = num / power + kdebug_char (encode[d]) + num -= d * power + + inline void debug (const char *f, ...): + unsigned *last = (unsigned *)&f + while *f: + if *f == '%': + ++f + switch *f: + case '%': + kdebug_char ('%') + break + case 'd': + ++last + debug_num (*last, 10) + break + case 'x': + ++last + debug_num (*last, 0x10) + break + case 's': + ++last + kdebug ((char *)*last) + break + default: + panic (*f, "invalid character in dbg format string") + else: + kdebug_char (*f) + ++f + #endif #endif diff --git a/mips/boot.S b/mips/boot.S index 46c6f28..75ef15d 100644 --- a/mips/boot.S +++ b/mips/boot.S @@ -1,5 +1,5 @@ // Iris: micro-kernel for a capability-based operating system. -// mips/trendtac/boot.S: Kernel entry point, called by the boot loader. +// mips/boot.S: Kernel entry point, called by the boot loader. // Copyright 2009 Bas Wijnen // // This program is free software: you can redistribute it and/or modify diff --git a/mips/nanonote/Makefile.arch b/mips/nanonote/Makefile.arch index e49647c..a54772a 100644 --- a/mips/nanonote/Makefile.arch +++ b/mips/nanonote/Makefile.arch @@ -15,15 +15,17 @@ # You should have received a copy of the GNU General Public License # along with this program. If not, see . +start_load = 0xa0600000 load = 0x80000000 -#UDC_BOOT = set +#UDC_BOOT = comment this out for nand boot ARCH_CPPFLAGS = -I. -Imips -Imips/nanonote -Wa,-mips32 -DNANONOTE -DUSE_SERIAL CROSS = mipsel-linux-gnu- OBJDUMP = $(CROSS)objdump junk = mdebug.abi32 reginfo comment pdr OBJCOPYFLAGS = $(addprefix --remove-section=.,$(junk)) -LDFLAGS = --omagic -Ttext $(load) +iris.elf: LDFLAGS = --omagic -Ttext $(load) +mips/start.elf: LDFLAGS = --omagic -Ttext $(start_load) arch_iris_sources = mips/interrupts.cc mips/arch.cc boot_sources = mips/init.cc mips/nanonote/board.cc @@ -44,13 +46,16 @@ boot_threads = $(standard_boot_programs) $(sd_boot_programs) threadlist = mips/nanonote/threadlist-sd ARCH_CXXFLAGS = -DNUM_THREADS=4 all: iris-sd.tar -iris-sd.tar: $(addprefix fs/,$(addsuffix .elf,$(programs))) iris.raw fs/init.config - mkimage -A mips -T kernel -a $(load) -e a$(shell /bin/sh -c '$(OBJDUMP) -t iris.elf | grep __start$$ | cut -b2-8') -n Iris -d iris.raw fs/uimage | sed -e 's/:/;/g' +iris-sd.tar: $(addprefix fs/,$(addsuffix .elf,$(programs))) mips/start.raw.gz fs/init.config + mkimage -A mips -T kernel -a $(start_load) -e a$(shell /bin/sh -c '$(OBJDUMP) -t mips/start.elf | grep __start$$ | cut -b2-8') -n Iris -d mips/start.raw.gz fs/uimage | sed -e 's/:/;/g' cd fs && tar cvf ../$@ uimage init.config $(addsuffix .elf,$(programs)) --dereference endif -test: iris.raw mips/nanonote/server/usb-server mips/nanonote/sdram-setup.raw $(addsuffix .elf,$(addprefix fs/,$(programs))) fs/init.config - echo "reboot 0xa$(shell /bin/sh -c '$(OBJDUMP) -t iris.elf | grep __start$$ | cut -b2-8')" | nc localhost 5050 +mips/start.o:mips/start.S Makefile Makefile.arch iris.raw + $(CC) $(CPPFLAGS) -DSTART=0xa$(shell /bin/sh -c '$(OBJDUMP) -t iris.elf | grep __start$$ | cut -b2-8') -c $< -o $@ + +test: mips/start.raw mips/start.elf mips/nanonote/server/usb-server mips/nanonote/sdram-setup.raw $(addsuffix .elf,$(addprefix fs/,$(programs))) fs/init.config + echo "reboot $(start_load) 0xa$(shell /bin/sh -c '$(OBJDUMP) -t mips/start.elf | grep __start$$ | cut -b2-8') $<" | nc localhost 5050 mips/nanonote/server/usb-server: mips/nanonote/server/usb-server.ccp mips/nanonote/server/Makefile.am mips/nanonote/server/configure.ac devices.hh $(MAKE) -C mips/nanonote/server @@ -63,6 +68,9 @@ mips/nanonote/server/usb-server: mips/nanonote/server/usb-server.ccp mips/nanono %.raw: %.elf $(OBJCOPY) -S $(OBJCOPYFLAGS) -Obinary $< $@ +%.raw.gz: %.raw + gzip < $< > $@ + nanonote-boot: mips/nanonote/nanonote-boot.cc mips/nanonote/sdram-setup.raw g++ `pkg-config --cflags --libs shevek` $< -o $@ -D'STAGE1="$<"' -lusb @@ -84,12 +92,15 @@ source/charset.data: source/charset $< > $@ %.o:%.S Makefile Makefile.arch mips/arch.hh - $(CC) $(CPPFLAGS) $(TARGET_FLAGS) -DKERNEL_STACK_SIZE=0x2000 -c $< -o $@ + $(CC) $(CPPFLAGS) $(TARGET_FLAGS) -DKERNEL_STACK_SIZE=0x1000 -c $< -o $@ # entry.o must be the first file. threadlist.o must be the first of the init objects (which can be freed after loading). iris.elf: mips/entry.o $(subst .cc,.o,$(iris_sources)) $(threadlist).o mips/boot.o $(subst .cc,.o,$(boot_sources)) $(LD) $(LDFLAGS) $^ -o $@ +mips/start.elf: mips/start.o + $(LD) $(LDFLAGS) $^ -o $@ + server: while mips/nanonote/server/usb-server ; do : ; done @@ -100,7 +111,7 @@ setup: x-terminal-emulator -e make debug & x-terminal-emulator -e make servers & -ARCH_CLEAN_FILES = $(boot_sources) $(addsuffix .elf,$(boot_threads)) $(arch_headers) devices.hh keys.hh mips/*.o mips/nanonote/*.o source/charset.data iris.elf iris.raw mips/nanonote/sdram-setup.elf mips/nanonote/sdram-setup.raw +ARCH_CLEAN_FILES = $(boot_sources) $(addsuffix .elf,$(boot_threads)) $(arch_headers) devices.hh keys.hh mips/*.o mips/nanonote/*.o source/charset.data iris.elf iris.raw mips/nanonote/sdram-setup.elf mips/nanonote/sdram-setup.raw mips/start.elf mips/start.raw .PRECIOUS: mips/arch.hh mips/nanonote/jz4740.hh mips/nanonote/board.hh .PHONY: test all monitor server servers setup diff --git a/mips/nanonote/board.ccp b/mips/nanonote/board.ccp index 57fa3b3..f32a5dd 100644 --- a/mips/nanonote/board.ccp +++ b/mips/nanonote/board.ccp @@ -71,12 +71,13 @@ void board_init (): UART0_FCR = 0 UART0_MCR = 0 UART0_SIRCR = 0 - UART0_UMR = 0 UART0_UACR = 0 + UART0_UMR = 1 UART0_LCR = UARTLCR_WLEN_8 | UARTLCR_STOP1 | UARTLCR_DLAB - unsigned uart_div = 3000000 / 16 / 9600 - UART0_DLHR = uart_div >> 8 - UART0_DLLR = uart_div + unsigned const baud = 57600 + unsigned uart_div = 12000000 / baud + UART0_DLHR = (uart_div >> 8) & 0xff + UART0_DLLR = uart_div & 0xff UART0_LCR = UARTLCR_WLEN_8 | UARTLCR_STOP1 UART0_FCR = UARTFCR_UUE | UARTFCR_FE | UARTFCR_RFLS | UARTFCR_TFLS kdebug ("\n\nSerial port initialized\n") diff --git a/mips/nanonote/jz4740.hhp b/mips/nanonote/jz4740.hhp index b39495b..f239f0d 100644 --- a/mips/nanonote/jz4740.hhp +++ b/mips/nanonote/jz4740.hhp @@ -2346,10 +2346,10 @@ static void gpio_disable_pull (unsigned p, unsigned pins): //************************************************************************** static void pll_init (): // The cpu clock frequency - unsigned const cpu_clock = 336000000 - //unsigned const cpu_clock = 200000000 - //unsigned const pixclock = 13500000 - unsigned const pixclock = 25846153 + //unsigned const cpu_clock = 336000000 + //unsigned const pixclock = 25846153 + unsigned const cpu_clock = 200000000 + unsigned const pixclock = 13500000 // Configure the pll frequency to cpu_clock. CPM_CPPCR = ((cpu_clock * 2 / JZ_EXTAL - 2) << CPM_CPPCR_PLLM_BIT) | (0 << CPM_CPPCR_PLLN_BIT) | (0 << CPM_CPPCR_PLLOD_BIT) | (0x20 << CPM_CPPCR_PLLST_BIT) | CPM_CPPCR_PLLEN // Set up dividers; see documentation for the meaning of all the values. diff --git a/mips/nanonote/server/Makefile.am b/mips/nanonote/server/Makefile.am index 284160b..c7940f8 100644 --- a/mips/nanonote/server/Makefile.am +++ b/mips/nanonote/server/Makefile.am @@ -20,7 +20,7 @@ AUTOMAKE_OPTIONS = foreign bin_PROGRAMS = usb-server usb_server_SOURCES = usb-server.cc -usb_server_CPPFLAGS = $(SHEVEK_CFLAGS) -DSTAGE1_FILE=\"mips/nanonote/sdram-setup.raw\" -DSTAGE2_FILE=\"iris.raw\" -I../../.. +usb_server_CPPFLAGS = $(SHEVEK_CFLAGS) -DSTAGE1_FILE=\"mips/nanonote/sdram-setup.raw\" -DSTAGE2_FILE=\"mips/start.raw\" -I../../.. usb_server_LDFLAGS = $(SHEVEK_LIBS) -lusb PYPP = /usr/bin/pypp diff --git a/mips/nanonote/server/usb-server.ccp b/mips/nanonote/server/usb-server.ccp index bc1e89f..f045307 100644 --- a/mips/nanonote/server/usb-server.ccp +++ b/mips/nanonote/server/usb-server.ccp @@ -40,7 +40,7 @@ struct data: static int const run_vendor = 0xfffe static int const run_product = 0x0002 static unsigned const timeout = 10000 - void boot (unsigned entry) + void boot (std::string const &filename, unsigned load, unsigned entry) data (std::string const &port): handle = NULL server = shevek::server ::create () @@ -49,7 +49,6 @@ struct data: private: static unsigned const STAGE1_LOAD = 0x80002000 - static unsigned const STAGE2_LOAD = 0x80000000 static unsigned const STAGE1_ENTRY = STAGE1_LOAD enum requests: VR_GET_CPU_INFO = 0 @@ -212,9 +211,10 @@ struct client : public shevek::server ::connection: keep = is_stdio void read (std::string const &line): shevek::istring l (line) - unsigned entry - if l ("reboot %x%", entry): - get_server ()->data ()->boot (entry) + unsigned load, entry + std::string filename + if l ("reboot %x %x %r%", load, entry, filename): + get_server ()->data ()->boot (filename, load, entry) else if l ("shutdown%"): std::cerr << "shutting down\n" shevek::end_loop () @@ -266,8 +266,8 @@ void data::get_device (unsigned vendor, unsigned product, unsigned tries): sleep (1) std::cerr << shevek::ostring ("giving up finding device %04x:%04x\n", vendor, product) -void data::boot (unsigned entry): - std::cerr << "booting " << shevek::ostring ("%x", entry) << "\n" +void data::boot (std::string const &filename, unsigned load, unsigned entry): + std::cerr << "booting " << shevek::ostring ("%s from %x@%x", Glib::ustring (filename), load, entry) << "\n" if handle: usb_release_interface (handle, 0) usb_close (handle) @@ -294,10 +294,10 @@ void data::boot (unsigned entry): std::ostringstream stage2 usb_release_interface (handle, 0) file.close () - file.open (STAGE2_FILE) + file.open (filename.c_str ()) stage2 << file.rdbuf () - std::cerr << "sending Iris\n" - send_file (STAGE2_LOAD, stage2.str ().size (), stage2.str ().data ()) + std::cerr << shevek::ostring ("sending Iris (size 0x%x)\n", stage2.str ().size ()) + send_file (load, stage2.str ().size (), stage2.str ().data ()) std::cerr << "flushing caches\n" request (VR_FLUSH_CACHES) std::cerr << "running Iris\n" diff --git a/mips/start.S b/mips/start.S new file mode 100644 index 0000000..83f6db4 --- /dev/null +++ b/mips/start.S @@ -0,0 +1,46 @@ +// Iris: micro-kernel for a capability-based operating system. +// mips/start.S: kernel starter at high address. +// Copyright 2009 Bas Wijnen +// +// This program is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see . + + .globl __start + .set noreorder + +__start: + bal 1f +// For some reason the disassembler considers everything +// after __start non-code until the next label. So I add a label. +start_hack_for_disassembler: + nop + .word _gp +1: lw $gp, 0($ra) + + li $a0, 0xa0000000 + la $a1, image + la $a2, image_end + +1: lw $a3, 0($a1) + sw $a3, 0($a0) + addiu $a1, 4 + bne $a1, $a2, 1b + addiu $a0, 4 + + li $t9, START + jr $t9 + nop + +image: + .incbin "iris.raw" +image_end: diff --git a/source/nand.ccp b/source/nand.ccp index ff95c18..5cfd93b 100644 --- a/source/nand.ccp +++ b/source/nand.ccp @@ -80,6 +80,28 @@ static unsigned word_size static void unbusy (): while !(gpio_get_port (2) & (1 << 30)): Iris::schedule () + Iris::schedule () + +static void addr (unsigned d): + unbusy () + *address = d + unbusy () + +static void cmd (unsigned d): + unbusy () + *command = d + unbusy () + +static void wdata (unsigned d): + unbusy () + *data = d + unbusy () + +static unsigned rdata (): + unbusy () + unsigned ret = *data + unbusy () + return ret static void reset (): Iris::Page data_page = Iris::my_memory.create_page () @@ -104,96 +126,148 @@ static void reset (): EMC_NFCSR = EMC_NFCSR_NFE1 | EMC_NFCSR_NFCE1 // Reset nand. - *command = CMD_RESET - unbusy () + cmd (CMD_RESET) - *command = CMD_READID - *address = 0 - unsigned d = *data + cmd (CMD_READID) + addr (0) + unsigned d = rdata () //unsigned maker = d - d = *data + d = rdata () //unsigned device = d - d = *data + d = rdata () //unsigned internal_chip_number = 1 << (d & 0x3) //unsigned cell_type = 2 << ((d >> 2) & 0x3) //unsigned simultaneously_programmed_pages = 1 << ((d >> 4) & 0x3) //bool can_interleave_program_between_chips = d & 0x40 //bool can_cache_program = d & 0x80 - d = *data + d = rdata () page_bits = 10 + (d & 3) - kdebug ("page bits: ") - kdebug_num (page_bits) - kdebug ("\n") + Iris::debug ("page bits: %d\n", page_bits) redundant_bits = (d & 4 ? 4 : 3) - block_bits = 64 + ((d >> 4) & 3) + Iris::debug ("redundant bits: %d\n", redundant_bits) + block_bits = 16 + ((d >> 4) & 3) + Iris::debug ("block bits: %d\n", block_bits) word_size = (d & 0x40 ? 16 : 8) + Iris::debug ("word size: %d\n", word_size) //unsigned serial_access_minimum = (d & 0x80 ? 25 : 50) - d = *data + d = rdata () //unsigned num_planes = 1 << ((d >> 2) & 3) //unsigned plane_bits = 26 + ((d >> 4) & 7) static void read (unsigned a, char *buffer): unsigned column = a & ((1 << page_bits) - 1) unsigned row = a >> page_bits - kdebug ("reading: ") - kdebug_num (a) - kdebug ("/") - kdebug_num (row) - kdebug ("/") - kdebug_num (column) - kdebug (": ") - *command = CMD_READ0 - *address = column - *address = column >> 8 - *address = row - *address = row >> 8 - *address = row >> 16 - *command = CMD_READSTART + //Iris::debug ("reading: %x/%x/%x: ", a, row, column) + cmd (CMD_READ0) + addr (column) + addr (column >> 8) + addr (row) + addr (row >> 8) + addr (row >> 16) + cmd (CMD_READSTART) EMC_NFECR = EMC_NFECR_ECCE | EMC_NFECR_RS | EMC_NFECR_RS_DECODING | EMC_NFECR_ERST - // Wait for nand to be ready. - unbusy () for unsigned t = 0; t < 0x200; ++t: - buffer[t] = *data + buffer[t] = rdata () char error[9] - unsigned errcol = (1 << page_bits) + (column >> 5) - *command = CMD_RNDOUT - *address = errcol - *address = errcol >> 8 - *command = CMD_RNDOUTSTART + // Spare space (starts at 1 << page_bits) + // 0: unused + // 2: detect valid data (at least 1 byte == 0 means valid) + // 5: unused + // 6: 9-byte ecc of 1st 512 bytes + // 15: 9-byte ecc of 2nd 512 bytes + // 24: 9-byte ecc of 3rd 512 bytes + // 33: 9-byte ecc of 4th 512 bytes + // 42: unused + // 64: end of space + unsigned errcol = (1 << page_bits) + (column >> 9) * 9 + 6 + cmd (CMD_RNDOUT) + addr (errcol) + addr (errcol >> 8) + cmd (CMD_RNDOUTSTART) for unsigned t = 0; t < 9; ++t: - error[t] = *data + error[t] = rdata () EMC_NFPAR (0) = ((unsigned *)error)[0] EMC_NFPAR (1) = ((unsigned *)error)[1] EMC_NFPAR (2) = error[9] EMC_NFECR = EMC_NFECR_ECCE | EMC_NFECR_RS | EMC_NFECR_RS_DECODING | EMC_NFECR_PRDY while !(EMC_NFINTS & EMC_NFINTS_DECF): Iris::schedule () - // delay... - //Iris::schedule () unsigned errs = (EMC_NFINTS & EMC_NFINTS_ERRCNT_MASK) >> EMC_NFINTS_ERRCNT_BIT + for unsigned i = 0; i < errs; ++i: + Iris::debug ("correcting %x on %x\n", EMC_NFERR (i) & 0xff, EMC_NFERR (i) >> 16) + buffer[EMC_NFERR (i) >> 16] ^= EMC_NFERR (i) & 0xff + +static void write (unsigned a, char *buffer): + unsigned row = a >> page_bits + //Iris::debug ("writing: %x/%x: ", a, row) + cmd (CMD_SEQIN) + addr (0) + addr (0) + addr (row) + addr (row >> 8) + addr (row >> 16) + char ecc[4][9] + for unsigned i = 0; i < 0x4; ++i: + EMC_NFECR = EMC_NFECR_ECCE | EMC_NFECR_RS | EMC_NFECR_RS_ENCODING | EMC_NFECR_ERST + for unsigned j = 0; j < 0x200; ++j: + wdata (buffer[i * 0x200 + j]) + while !(EMC_NFINTS & EMC_NFINTS_ENCF): + Iris::schedule () + ((unsigned *)ecc[i])[0] = EMC_NFPAR (0) + ((unsigned *)ecc[i])[1] = EMC_NFPAR (1) + ecc[i][9] = EMC_NFPAR (2) + // Spare space (starts at 1 << page_bits) + // 0: unused + // 2: detect valid data (at least 1 byte == 0 means valid) + // 5: unused + // 6: 9-byte ecc of 1st 512 bytes + // 15: 9-byte ecc of 2nd 512 bytes + // 24: 9-byte ecc of 3rd 512 bytes + // 33: 9-byte ecc of 4th 512 bytes + // 42: unused + // 64: end of space + for unsigned i = 0; i < 6; ++i: + wdata (0) + for unsigned i = 0; i < 4; ++i: + for unsigned j = 0; j < 9; ++j: + wdata (ecc[i][j]) + cmd (CMD_PAGEPROG) + Iris::debug ("nand program %d done\n", a) + +static void erase (unsigned a): + unsigned row = a >> page_bits + cmd (CMD_ERASE1) + addr (row) + addr (row >> 8) + addr (row >> 16) + cmd (CMD_ERASE2) + Iris::debug ("nand erase %d done\n", a) Iris::Num start (): - kdebug ("reading nand in 10 seconds\n") + kdebug ("starting nand operation in 10 seconds\n") Iris::sleep (10 * HZ) map_emc () map_gpio () + // Arbitrary addresses where the pages are mapped. command = (volatile char *)0x15000 address = (volatile char *)0x16000 data = (volatile char *)0x17000 reset () - char buffer[0x200] + char buffer[0x800] + + //erase (0) // Send nand contents to serial port. for unsigned a = 0; a < 0x4000; a += 0x200: read (a, buffer) - //for unsigned s = 0; s < 0x10; ++s: - for unsigned t = 0; t < 0x10; ++t: + for unsigned s = 0; s < 0x10; ++s: + for unsigned t = 0; t < 0x20; ++t: kdebug (" ") - kdebug_num (buffer[0 * 0x20 + t], 2) + kdebug_num (buffer[s * 0x20 + t], 2) kdebug ("\n") - //kdebug ("\n") + kdebug ("\n") // Exit. return 0