diff --git a/Source/hoc-clk/bpmpfw/Makefile b/Source/hoc-clk/bpmpfw/Makefile
index 0631e56b..7af3a478 100644
--- a/Source/hoc-clk/bpmpfw/Makefile
+++ b/Source/hoc-clk/bpmpfw/Makefile
@@ -8,15 +8,26 @@ BUILDDIR   := build
 OUTPUTDIR  := out
 SOURCEDIR  := source
 
-OBJS := $(BUILDDIR)/start.o $(BUILDDIR)/main.o
+LIBCDIR := $(SOURCEDIR)/libc
 
-ARCH   := -march=armv4t -mtune=arm7tdmi -mthumb-interwork
+CPP_SOURCES := $(wildcard $(SOURCEDIR)/*.cpp)
+C_SOURCES   := $(wildcard $(LIBCDIR)/src/*.c)
+S_SOURCES   := $(wildcard $(SOURCEDIR)/*.s)
+
+OBJS := $(patsubst $(SOURCEDIR)/%.cpp,$(BUILDDIR)/%.o,$(CPP_SOURCES)) \
+        $(patsubst $(LIBCDIR)/src/%.c,$(BUILDDIR)/libc/%.o,$(C_SOURCES)) \
+        $(patsubst $(SOURCEDIR)/%.s,$(BUILDDIR)/%.o,$(S_SOURCES))
+
+ARCH     := -march=armv4t -mtune=arm7tdmi -mthumb-interwork
+INCLUDE  := -I$(SOURCEDIR) -I$(LIBCDIR)/include -I$(LIBCDIR)/include/fslc
+CFLAGS   := $(ARCH) -O2 -g -ffreestanding -nostdlib -ffunction-sections -fdata-sections \
+            -fomit-frame-pointer -std=gnu11 -Wall -Wextra $(CUSTOMDEFINES)
 CXXFLAGS := $(ARCH) -O2 -g -ffreestanding -nostdlib -fno-exceptions -fno-rtti \
             -fno-unwind-tables -fno-threadsafe-statics -ffunction-sections -fdata-sections \
             -fomit-frame-pointer -std=gnu++20 -Wall -Wextra $(CUSTOMDEFINES)
-ASFLAGS := $(ARCH) -g
-LDFLAGS := $(ARCH) -nostartfiles -nodefaultlibs -Wl,--nmagic,--gc-sections \
-           -T $(SOURCEDIR)/../bpmpfw.ld -lgcc
+ASFLAGS  := $(ARCH) -g
+LDFLAGS  := $(ARCH) -nostartfiles -nodefaultlibs -Wl,--nmagic,--gc-sections \
+            -T $(SOURCEDIR)/../bpmpfw.ld -lgcc
 
 BIN_TARGET := $(OUTPUTDIR)/$(TARGET).bin
 
@@ -32,13 +43,19 @@ $(BUILDDIR)/$(TARGET).elf: $(OBJS)
 	@$(CXX) $(LDFLAGS) $(OBJS) -o $@
 
 $(BUILDDIR)/%.o: $(SOURCEDIR)/%.cpp | $(BUILDDIR)
-	@$(CXX) $(CXXFLAGS) -I$(SOURCEDIR) -c $< -o $@
+	@$(CXX) $(CXXFLAGS) $(INCLUDE) -c $< -o $@
+
+$(BUILDDIR)/libc/%.o: $(LIBCDIR)/src/%.c | $(BUILDDIR)/libc
+	@$(CC) $(CFLAGS) $(INCLUDE) -c $< -o $@
 
 $(BUILDDIR)/%.o: $(SOURCEDIR)/%.s | $(BUILDDIR)
-	@$(CXX) $(ASFLAGS) -I$(SOURCEDIR) -c $< -o $@
+	@$(CXX) $(ASFLAGS) $(INCLUDE) -c $< -o $@
 
 $(BUILDDIR):
 	@mkdir -p $(BUILDDIR)
 
+$(BUILDDIR)/libc: | $(BUILDDIR)
+	@mkdir -p $(BUILDDIR)/libc
+
 clean:
 	@rm -rf $(BUILDDIR) $(OUTPUTDIR)
diff --git a/Source/hoc-clk/bpmpfw/out/bpmpfw.bin b/Source/hoc-clk/bpmpfw/out/bpmpfw.bin
index c6d35308..04f7484e 100644
Binary files a/Source/hoc-clk/bpmpfw/out/bpmpfw.bin and b/Source/hoc-clk/bpmpfw/out/bpmpfw.bin differ
diff --git a/Source/hoc-clk/bpmpfw/source/libc/LICENSE b/Source/hoc-clk/bpmpfw/source/libc/LICENSE
new file mode 100644
index 00000000..3ea91fc4
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015-2016 Jurģis Brigmanis <velko.x@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/Source/hoc-clk/bpmpfw/source/libc/include/assert.h b/Source/hoc-clk/bpmpfw/source/libc/include/assert.h
new file mode 100644
index 00000000..a022cf62
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/include/assert.h
@@ -0,0 +1,6 @@
+#ifndef _STD_ASSERT_H
+#define _STD_ASSERT_H
+
+#include "fslc/fslc_assert.h"
+
+#endif /* _STD_ASSERT_H */
diff --git a/Source/hoc-clk/bpmpfw/source/libc/include/fslc/fslc_assert.h b/Source/hoc-clk/bpmpfw/source/libc/include/fslc/fslc_assert.h
new file mode 100644
index 00000000..131498df
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/include/fslc/fslc_assert.h
@@ -0,0 +1,35 @@
+#ifndef FSLC_ASSERT_H
+#define FSLC_ASSERT_H
+
+#ifndef ALT_FSLC_NAMES
+
+#define fslc_assert     assert
+
+#endif /* ALT_FSLC_NAMES */
+
+
+#ifdef NDEBUG
+
+#define fslc_assert(expr)     ((void)0)
+
+#else /* NDEBUG */
+
+/* Note: __PRETTY_FUNCTION__ is GCC specific */
+#define fslc_assert(expr)     ((expr) ? (void)0 : __fslc_assert_fail(#expr, __FILE__, __LINE__, __PRETTY_FUNCTION__))
+
+#endif /* NDEBUG */
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+    void __fslc_assert_fail(const char *expr, const char *file, unsigned int line, const char *func);
+
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif /* __cplusplus */
+
+#endif /* FSLC_ASSERT_H */
diff --git a/Source/hoc-clk/bpmpfw/source/libc/include/fslc/fslc_stdio.h b/Source/hoc-clk/bpmpfw/source/libc/include/fslc/fslc_stdio.h
new file mode 100644
index 00000000..ffdc222d
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/include/fslc/fslc_stdio.h
@@ -0,0 +1,74 @@
+#ifndef FSLC_STDIO_H
+#define FSLC_STDIO_H
+
+#include <stdarg.h>
+#include <stddef.h>
+
+#ifndef ALT_FSLC_NAMES
+
+#define FSLC_FILE       FILE
+#define fslc_stdout     stdout
+#define fslc_stdin      stdin
+#define fslc_putchar    putchar
+#define fslc_fputc      fputc
+#define fslc_fputs      fputs
+#define fslc_puts       puts
+
+#define fslc_vfprintf   vfprintf
+#define fslc_vprintf    vprintf
+#define fslc_fprintf    fprintf
+#define fslc_printf     printf
+
+#define fslc_fwrite     fwrite
+#define fslc_fread      fread
+
+#define fslc_getc       getc
+#define fslc_getchar    getchar
+#define fslc_ungetc     ungetc
+#define fslc_fgets      fgets
+
+#endif /* ALT_FSLC_NAMES */
+
+typedef struct _FSLC_FILE FSLC_FILE;
+
+struct _FSLC_FILE
+{
+    void *user_ptr;
+    int (*putc)(int c, FSLC_FILE *stream);
+    int (*getc)(FSLC_FILE *stream);
+    void (*pre_output)(FSLC_FILE *stream);
+    void (*post_output)(FSLC_FILE *stream);
+    int ungetc_buf;
+};
+
+extern FSLC_FILE    *fslc_stdout;
+extern FSLC_FILE    *fslc_stdin;
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+    int fslc_putchar(int c);
+    int fslc_fputc(int c, FSLC_FILE *stream);
+    int fslc_fputs(const char *str, FSLC_FILE *stream);
+    int fslc_puts(const char *str);
+
+    int fslc_vfprintf(FSLC_FILE *stream, const char *format, va_list arg);
+    int fslc_vprintf(const char *format, va_list arg);
+    int fslc_fprintf(FSLC_FILE *stream, const char *format, ...);
+    int fslc_printf(const char *format, ...);
+
+    size_t fslc_fwrite(const void *ptr, size_t size, size_t count, FSLC_FILE *stream);
+    size_t fslc_fread(void *ptr, size_t size, size_t count, FSLC_FILE *stream);
+
+    int fslc_getc(FSLC_FILE *stream);
+    int fslc_getchar(void);
+    int fslc_ungetc(int c, FSLC_FILE *stream);
+    char *fslc_fgets(char *str, int num, FSLC_FILE *stream);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif /* __cplusplus */
+
+
+#endif /* FSLC_STDIO_H */
diff --git a/Source/hoc-clk/bpmpfw/source/libc/include/fslc/fslc_stdlib.h b/Source/hoc-clk/bpmpfw/source/libc/include/fslc/fslc_stdlib.h
new file mode 100644
index 00000000..021b67aa
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/include/fslc/fslc_stdlib.h
@@ -0,0 +1,25 @@
+#ifndef FSLC_STDLIB_H
+#define FSLC_STDLIB_H
+
+#include <stddef.h>
+
+#ifndef ALT_FSLC_NAMES
+
+#define fslc_bsearch     bsearch
+
+#endif /* ALT_FSLC_NAMES */
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+    void *fslc_bsearch(const void *key, const void *base, size_t num, size_t size, int (*cmp_proc)(const void *, const void *));
+
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif /* __cplusplus */
+
+#endif /* FSLC_STDLIB_H */
diff --git a/Source/hoc-clk/bpmpfw/source/libc/include/fslc/fslc_string.h b/Source/hoc-clk/bpmpfw/source/libc/include/fslc/fslc_string.h
new file mode 100644
index 00000000..a869054d
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/include/fslc/fslc_string.h
@@ -0,0 +1,50 @@
+#ifndef FSLC_STRING_H
+#define FSLC_STRING_H
+
+#include <stddef.h>
+
+#ifndef ALT_FSLC_NAMES
+#define fslc_memset     memset
+#define fslc_memcpy     memcpy
+#define fslc_memmove    memmove
+#define fslc_memcmp     memcmp
+
+#define fslc_strlen     strlen
+#define fslc_strcpy     strcpy
+#define fslc_strncpy    strncpy
+#define fslc_strcmp     strcmp
+#define fslc_strncmp    strncmp
+#define fslc_strchr     strchr
+#define fslc_strstr     strstr
+#define fslc_strpbrk    strpbrk
+#define fslc_strspn     strspn
+#define fslc_strtok_r   strtok_r
+
+#endif /* ALT_FSLC_NAMES */
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+    void *fslc_memset(void *ptr, int value, size_t num);
+    void *fslc_memcpy(void *dest, const void *src, size_t len);
+    void *fslc_memmove(void *dest, const void *src, size_t len);
+    int fslc_memcmp(const void *ptr1, const void *ptr2, size_t num);
+
+    size_t fslc_strlen(const char *str);
+    char *fslc_strcpy(char *dest, const char *src);
+    char *fslc_strncpy(char *dest, const char *src, size_t len);
+    int fslc_strcmp(const char *str1, const char *str2);
+    int fslc_strncmp(const char *str1, const char *str2, size_t num);
+    char *fslc_strchr(const char *str, int c);
+    char *fslc_strstr(const char *search_in, const char *search_for);
+    char *fslc_strpbrk(const char *str, const char *delim);
+    size_t fslc_strspn(const char *str, const char *delim);
+    char *fslc_strtok_r(char *str, const char *delim, char **save_p);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif /* __cplusplus */
+
+
+#endif /* FSLC_STRING_H */
diff --git a/Source/hoc-clk/bpmpfw/source/libc/include/fslc/stdlibx.h b/Source/hoc-clk/bpmpfw/source/libc/include/fslc/stdlibx.h
new file mode 100644
index 00000000..2b86a1a4
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/include/fslc/stdlibx.h
@@ -0,0 +1,23 @@
+#ifndef FSLC_STDLIBX_H
+#define FSLC_STDLIBX_H
+
+#include <stddef.h>
+
+#ifndef ALT_FSLC_NAMES
+
+#define fslc_bsearch_i     bsearch_i
+
+#endif /* ALT_FSLC_NAMES */
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+    int fslc_bsearch_i(const void *key, const void *base, size_t num, size_t size, int (*cmp_proc)(const void *, const void *));
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif /* __cplusplus */
+
+#endif /* FSLC_STDLIBX_H */
diff --git a/Source/hoc-clk/bpmpfw/source/libc/include/fslc/stringx.h b/Source/hoc-clk/bpmpfw/source/libc/include/fslc/stringx.h
new file mode 100644
index 00000000..193d8913
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/include/fslc/stringx.h
@@ -0,0 +1,33 @@
+#ifndef FSLC_STRINGX_H
+#define FSLC_STRINGX_H
+
+#include <stddef.h>
+
+#ifndef ALT_FSLC_NAMES
+
+#define fslc_memset_l   memset_l
+#define fslc_strcpy_e   strcpy_e
+#define fslc_strncpy_e  strncpy_e
+
+#endif /* ALT_FSLC_NAMES */
+
+#if __SIZEOF_LONG__ == 4
+#define memset_32    memset_l
+#elif __SIZEOF_LONG__ == 8
+#define memset_32(A, V, S)	memset_l(A, (((unsigned long)(V)<<32)|(V)), S)
+#endif
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+    void *fslc_memset_l(void *ptr, unsigned long value, size_t num);
+    char *fslc_strcpy_e(char *dest, const char *src);
+    char *fslc_strncpy_e(char *dest, const char *src, size_t len);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif /* __cplusplus */
+
+#endif /* FSLC_STRINGX_H */
diff --git a/Source/hoc-clk/bpmpfw/source/libc/include/stdio.h b/Source/hoc-clk/bpmpfw/source/libc/include/stdio.h
new file mode 100644
index 00000000..fb4853f2
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/include/stdio.h
@@ -0,0 +1,6 @@
+#ifndef _STD_STDIO_H
+#define _STD_STDIO_H
+
+#include "fslc/fslc_stdio.h"
+
+#endif /* _STD_STDIO_H */
diff --git a/Source/hoc-clk/bpmpfw/source/libc/include/stdlib.h b/Source/hoc-clk/bpmpfw/source/libc/include/stdlib.h
new file mode 100644
index 00000000..34259177
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/include/stdlib.h
@@ -0,0 +1,6 @@
+#ifndef _STD_STDLIB_H
+#define _STD_STDLIB_H
+
+#include "fslc/fslc_stdlib.h"
+
+#endif /* _STD_STDLIB_H */
diff --git a/Source/hoc-clk/bpmpfw/source/libc/include/string.h b/Source/hoc-clk/bpmpfw/source/libc/include/string.h
new file mode 100644
index 00000000..c35eec9c
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/include/string.h
@@ -0,0 +1,6 @@
+#ifndef _STD_STRING_H
+#define _STD_STRING_H
+
+#include "fslc/fslc_string.h"
+
+#endif /* _STD_STRING_H */
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_bsearch.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_bsearch.c
new file mode 100644
index 00000000..1f25f704
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_bsearch.c
@@ -0,0 +1,12 @@
+#include "fslc_stdlib.h"
+#include "stdlibx.h"
+
+void *fslc_bsearch(const void *key, const void *base, size_t num, size_t size, int (*cmp_proc)(const void *, const void *))
+{
+    int sidx = fslc_bsearch_i(key, base, num, size, cmp_proc);
+
+    if (sidx < 0)
+        return NULL;
+
+    return (char *)base + (sidx * size);
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_bsearch_i.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_bsearch_i.c
new file mode 100644
index 00000000..52cf54b4
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_bsearch_i.c
@@ -0,0 +1,31 @@
+#include <stddef.h>
+
+int fslc_bsearch_i(const void *key, const void *base, size_t num, size_t size, int (*cmp_proc)(const void *, const void *))
+{
+    int lo = 0;
+    int hi = num - 1;
+
+    char *cbase = (char *)base;
+
+    while (lo <= hi)
+    {
+        int i = lo + ((hi - lo) >> 1);
+
+        char *ptr = cbase + (i * size);
+        int cmp = cmp_proc(key, ptr);
+
+        if (cmp == 0)
+            return i;
+
+        if (cmp > 0)
+        {
+            lo = i + 1;
+        }
+        else
+        {
+            hi = i - 1;
+        }
+    }
+
+    return ~lo;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_fprintf.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_fprintf.c
new file mode 100644
index 00000000..688d5912
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_fprintf.c
@@ -0,0 +1,10 @@
+#include "fslc_stdio.h"
+
+int fslc_fprintf(FSLC_FILE *stream, const char *format, ...)
+{
+    va_list args;
+    va_start(args, format);
+    int r = fslc_vfprintf(stream, format, args);
+    va_end(args);
+    return r;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_fputc.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_fputc.c
new file mode 100644
index 00000000..2745b827
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_fputc.c
@@ -0,0 +1,12 @@
+#include "fslc_stdio.h"
+
+int fslc_fputc(int c, FSLC_FILE *stream)
+{
+    if (stream->pre_output) stream->pre_output(stream);
+    
+    int r = stream->putc(c, stream);
+    
+    if (stream->post_output) stream->post_output(stream);
+    
+    return r;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_fputs.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_fputs.c
new file mode 100644
index 00000000..be8d13a9
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_fputs.c
@@ -0,0 +1,15 @@
+#include "fslc_stdio.h"
+
+int _fslc_fputs_impl(const char *str, FSLC_FILE *stream);
+
+int fslc_fputs(const char *str, FSLC_FILE *stream)
+{
+    if (stream->pre_output) stream->pre_output(stream);
+    
+    int r = _fslc_fputs_impl(str, stream);
+    
+    if (stream->post_output) stream->post_output(stream);
+    
+    return r;
+}
+
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_fputs_impl.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_fputs_impl.c
new file mode 100644
index 00000000..9743de6b
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_fputs_impl.c
@@ -0,0 +1,13 @@
+#include "fslc_stdio.h"
+
+int _fslc_fputs_impl(const char *str, FSLC_FILE *stream)
+{
+    int res = 0;
+    for (;*str; ++str)
+    {
+        int pr = stream->putc(*str, stream);
+        if (pr < 0) return pr;
+        ++res;
+    }
+    return res;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_memcmp.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_memcmp.c
new file mode 100644
index 00000000..6719b878
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_memcmp.c
@@ -0,0 +1,38 @@
+#include "fslc_string.h"
+#include <stdint.h>
+
+int fslc_memcmp(const void *ptr1, const void *ptr2, size_t num)
+{
+    unsigned char *b_p1 = (unsigned char *)ptr1;
+    unsigned char *b_p2 = (unsigned char *)ptr2;
+
+    for (;((uintptr_t)b_p1 & (sizeof(long)-1)) && num > 0; ++b_p1, ++b_p2, --num)
+    {
+        if (*b_p1 != *b_p2)
+        {
+            return *b_p1 > *b_p2 ? 1 : -1;
+        }
+    }
+
+    unsigned long *w_p1 = (unsigned long *)b_p1;
+    unsigned long *w_p2 = (unsigned long *)b_p2;
+    for (;num >= sizeof(unsigned long); ++w_p1, ++w_p2, num -= sizeof(unsigned long))
+    {
+        if (*w_p1 != *w_p2)
+        {
+            return *w_p1 > *w_p2 ? 1 : -1;
+        }
+    }
+
+    b_p1 = (unsigned char *)w_p1;
+    b_p2 = (unsigned char *)w_p2;
+    for (; num > 0; ++b_p1, ++b_p2, --num)
+    {
+        if (*b_p1 != *b_p2)
+        {
+            return *b_p1 > *b_p2 ? 1 : -1;
+        }
+    }
+
+    return 0;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_memcpy.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_memcpy.c
new file mode 100644
index 00000000..2383248c
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_memcpy.c
@@ -0,0 +1,40 @@
+#include "fslc_string.h"
+#include <stdint.h>
+
+void *fslc_memcpy(void *dest, const void *src, size_t len)
+{
+    /* Copy byte-by-byte up to word-aligned.
+     *
+     * There's a possibility, that src and dest have different offsets
+     * to word boundary and can not both be used efficiently.
+     *
+     * In this case we use align to dest argument, because it then can be
+     * written in one operation, instead of read-modify-write of 2 words.
+     *
+     * Most of the time both parameters should be word-aligned, however.
+     */
+    unsigned char *b_src = (unsigned char *)src;
+    unsigned char *b_dst = (unsigned char *)dest;
+    for (;((uintptr_t)b_dst & (sizeof(unsigned long)-1)) && len > 0; b_src++, b_dst++, len--)
+    {
+        *b_dst = *b_src;
+    }
+
+    /* Then all word-aligned */
+    unsigned long *w_src  = (unsigned long*)b_src;
+    unsigned long *w_dst = (unsigned long*)b_dst;
+    for (;len >= sizeof(unsigned long); w_src++, w_dst++, len -= sizeof(unsigned long))
+    {
+        *w_dst = *w_src;
+    }
+
+    /* And byte-by-byte the rest */
+    b_src  = (unsigned char *)w_src;
+    b_dst = (unsigned char *)w_dst;
+    for (; len > 0; b_src++, b_dst++, len--)
+    {
+        *b_dst = *b_src;
+    }
+
+    return dest;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_memmove.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_memmove.c
new file mode 100644
index 00000000..68426ca6
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_memmove.c
@@ -0,0 +1,69 @@
+#include "fslc_string.h"
+#include <stdint.h>
+
+void *fslc_memmove(void *dest, const void *src, size_t len)
+{
+    unsigned char *b_dst = (unsigned char *)dest;
+    unsigned char *b_src = (unsigned char *)src;
+
+    /* Need to check if memory regions overlaps. Then if the dest address is
+     * larger than source, we need to copy backwards (or else source regions
+     * ending will be overwritten by writes to dest, before they are read).
+     *
+     * In other cases it works identically as memcpy(). Same considerations
+     * about address alignment applies here.
+     */
+    if ( b_dst < b_src + len && b_dst > b_src)
+    {
+        b_src += len;
+        b_dst += len;
+
+        /* Byte-by-byte down to word-aligned. */
+        for (;((uintptr_t)b_dst & (sizeof(unsigned long)-1)) && len > 0; )
+        {
+            b_src--, b_dst--, len--;
+            *b_dst = *b_src;
+        }
+
+        /* Then all word-aligned */
+        unsigned long *w_src  = (unsigned long*)b_src;
+        unsigned long *w_dst = (unsigned long*)b_dst;
+        for (;len >= sizeof(unsigned long); )
+        {
+            w_src--, w_dst--, len -= sizeof(unsigned long);
+            *w_dst = *w_src;
+        }
+
+        /* And byte-by-byte the rest */
+        b_src = (unsigned char *)w_src;
+        b_dst = (unsigned char *)w_dst;
+        for (; len > 0; )
+        {
+            b_src--, b_dst--, len--;
+            *b_dst = *b_src;
+        }
+    } else {
+        /* Byte-by-byte up to word-aligned. */
+        for (;((uintptr_t)b_dst & (sizeof(unsigned long)-1)) && len > 0; b_src++, b_dst++, len--)
+        {
+            *b_dst = *b_src;
+        }
+
+        /* Then all word-aligned */
+        unsigned long *w_src  = (unsigned long *)b_src;
+        unsigned long *w_dst = (unsigned long *)b_dst;
+        for (;len >= sizeof(unsigned long); w_src++, w_dst++, len -= sizeof(unsigned long))
+        {
+            *w_dst = *w_src;
+        }
+
+        /* And byte-by-byte the rest */
+        b_src  = (unsigned char *)w_src;
+        b_dst = (unsigned char *)w_dst;
+        for (; len > 0; b_src++, b_dst++, len--)
+        {
+            *b_dst = *b_src;
+        }
+    }
+    return dest;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_memset.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_memset.c
new file mode 100644
index 00000000..321211f8
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_memset.c
@@ -0,0 +1,22 @@
+#include "fslc_string.h"
+#include "stringx.h"
+
+void *fslc_memset(void *ptr, int value, size_t num)
+{
+    /* Will use memset_l() to actually fill the memory region. If value is non-zero, we need
+     * to replicate lowest byte to all the long's bytes.
+     */
+    if (value)
+    {
+        unsigned char c_val = value;
+        unsigned long l_val = (c_val << 0) | (c_val << 8) | (c_val << 16) | (c_val << 24);
+
+        #if __SIZEOF_LONG__ == 8
+        l_val |= l_val << 32;
+        #endif
+
+        return fslc_memset_l(ptr, l_val, num);
+    }
+    else
+        return fslc_memset_l(ptr, value, num);
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_memset_l.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_memset_l.c
new file mode 100644
index 00000000..f4d46336
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_memset_l.c
@@ -0,0 +1,31 @@
+#include "stringx.h"
+#include <stdint.h>
+
+void *fslc_memset_l(void *ptr, unsigned long value, size_t num)
+{
+    unsigned char *b_src = (unsigned char *)&value;
+    unsigned char *b_dst = (unsigned char *)ptr;
+
+    /* Byte by byte - to aligned word address */
+    b_src += ((uintptr_t)b_dst & (sizeof(unsigned long)-1));
+    for (;((uintptr_t)b_dst & (sizeof(unsigned long)-1)) && num > 0; b_dst++,b_src++,num--)
+    {
+        *b_dst = *b_src;
+    }
+
+    /* All aligned */
+    unsigned long *w_dst = (unsigned long *)b_dst;
+    for (;num >= sizeof(unsigned long); w_dst++,num -= sizeof(unsigned long))
+    {
+        *w_dst= value;
+    }
+
+    /* Unaligned ending */
+    b_src = (unsigned char *)&value;
+    b_dst = (unsigned char *)w_dst;
+    for (; num > 0; b_dst++,b_src++,num--)
+    {
+        *b_dst = *b_src;
+    }
+    return ptr;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_printf.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_printf.c
new file mode 100644
index 00000000..2609e377
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_printf.c
@@ -0,0 +1,10 @@
+#include "fslc_stdio.h"
+
+int fslc_printf(const char *format, ...)
+{
+    va_list args;
+    va_start(args, format);
+    int r = fslc_vfprintf(fslc_stdout, format, args);
+    va_end(args);
+    return r;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_putchar.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_putchar.c
new file mode 100644
index 00000000..d4c1a54d
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_putchar.c
@@ -0,0 +1,6 @@
+#include "fslc_stdio.h"
+
+int fslc_putchar(int c)
+{
+    return fslc_fputc(c, fslc_stdout);
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_puts.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_puts.c
new file mode 100644
index 00000000..c1f5d94c
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_puts.c
@@ -0,0 +1,21 @@
+#include "fslc_stdio.h"
+
+int _fslc_fputs_impl(const char *str, FSLC_FILE *stream);
+
+int fslc_puts(const char *str)
+{
+    if (fslc_stdout->pre_output) fslc_stdout->pre_output(fslc_stdout);
+    
+    int r = _fslc_fputs_impl(str, fslc_stdout);
+    
+    if (r >= 0)
+    {
+        int nlr = fslc_stdout->putc('\n', fslc_stdout);
+        if (nlr < 0)
+            r = nlr;
+    }
+    
+    if (fslc_stdout->post_output) fslc_stdout->post_output(fslc_stdout);
+    
+    return r;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_stdout.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_stdout.c
new file mode 100644
index 00000000..5418196a
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_stdout.c
@@ -0,0 +1,3 @@
+#include "fslc_stdio.h"
+
+FSLC_FILE *fslc_stdout;
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strchr.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strchr.c
new file mode 100644
index 00000000..cf3e239c
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strchr.c
@@ -0,0 +1,10 @@
+#include "fslc_string.h"
+
+char *fslc_strchr(const char *str, int c)
+{
+    for (;*str; ++str)
+        if (*str == c)
+            return (char *)str;
+
+    return NULL;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strcmp.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strcmp.c
new file mode 100644
index 00000000..216e147a
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strcmp.c
@@ -0,0 +1,8 @@
+#include "fslc_string.h"
+
+int fslc_strcmp(const char *str1, const char *str2)
+{
+    for( ; *str1 && *str1 == *str2; ++str1, ++str2);
+
+    return *((unsigned char *)str1) - *((unsigned char *)str2);
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strcpy.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strcpy.c
new file mode 100644
index 00000000..e0fe5011
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strcpy.c
@@ -0,0 +1,8 @@
+#include "fslc_string.h"
+#include "stringx.h"
+
+char *fslc_strcpy(char *dest, const char *src)
+{
+    fslc_strcpy_e(dest, src);
+    return dest;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strcpy_e.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strcpy_e.c
new file mode 100644
index 00000000..313243a5
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strcpy_e.c
@@ -0,0 +1,10 @@
+#include "stringx.h"
+
+char *fslc_strcpy_e(char *dest, const char *src)
+{
+    for(; *src; ++src, ++dest)
+        *dest = *src;
+
+    *dest = 0;
+    return dest;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strlen.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strlen.c
new file mode 100644
index 00000000..15543224
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strlen.c
@@ -0,0 +1,9 @@
+#include "fslc_string.h"
+
+size_t fslc_strlen(const char *str)
+{
+    size_t res = 0;
+    for(; *str; ++str) ++res;
+
+    return res;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strncmp.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strncmp.c
new file mode 100644
index 00000000..3ad69714
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strncmp.c
@@ -0,0 +1,8 @@
+#include "fslc_string.h"
+
+int fslc_strncmp(const char *str1, const char *str2, size_t num)
+{
+    for( ; *str1 && *str1 == *str2 && num > 1; ++str1, ++str2, --num);
+
+    return *((unsigned char *)str1) - *((unsigned char *)str2);
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strncpy.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strncpy.c
new file mode 100644
index 00000000..13e74f4a
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strncpy.c
@@ -0,0 +1,9 @@
+#include "fslc_string.h"
+
+char *_fslc_strncpy_impl(char *dest, const char *src, size_t len);
+
+char *fslc_strncpy(char *dest, const char *src, size_t len)
+{
+    _fslc_strncpy_impl(dest, src, len);
+    return dest;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strncpy_e.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strncpy_e.c
new file mode 100644
index 00000000..b0ab743e
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strncpy_e.c
@@ -0,0 +1,9 @@
+#include "stringx.h"
+
+char *_fslc_strncpy_impl(char *dest, const char *src, size_t len);
+
+char *fslc_strncpy_e(char *dest, const char *src, size_t len)
+{
+    char *r = _fslc_strncpy_impl(dest, src, len);
+    return *r ? r + 1: r;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strncpy_impl.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strncpy_impl.c
new file mode 100644
index 00000000..76e80a3c
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strncpy_impl.c
@@ -0,0 +1,10 @@
+#include <stddef.h>
+
+char *_fslc_strncpy_impl(char *dest, const char *src, size_t len)
+{
+    for(; *src && len > 1; ++src, ++dest, --len)
+        *dest = *src;
+
+    *dest = *src;
+    return dest;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strpbrk.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strpbrk.c
new file mode 100644
index 00000000..743b5256
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strpbrk.c
@@ -0,0 +1,14 @@
+#include "fslc_string.h"
+
+char *fslc_strpbrk(const char *str, const char *delim)
+{
+    for (; *str; ++str)
+    {
+        const char *d;
+        for (d = delim; *d; ++d)
+            if (*str == *d)
+                return (char *)str;
+    }
+
+    return NULL;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strspn.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strspn.c
new file mode 100644
index 00000000..583a0d2d
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strspn.c
@@ -0,0 +1,18 @@
+#include "fslc_string.h"
+
+size_t fslc_strspn(const char *str, const char *delim)
+{
+    size_t r;
+
+    for (r = 0; *str; ++str, ++r)
+    {
+        const char *d;
+        for (d = delim; *d; ++d)
+            if (*str == *d) // skip to next if found
+                break;
+
+        if (*d == 0) // inner loop exited on \0 - char was not there
+            break;
+    }
+    return r;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strstr.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strstr.c
new file mode 100644
index 00000000..99966c97
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strstr.c
@@ -0,0 +1,23 @@
+#include "fslc_string.h"
+
+char *fslc_strstr(const char *search_in, const char *search_for)
+{
+    while (*search_in)
+    {
+        char *rc = fslc_strchr(search_in, search_for[0]); // find first char
+
+        if (rc)
+        {
+            const char *si = rc + 1, *sf = search_for + 1; // search strcmp-style from second char
+            for( ; *si && *si == *sf; ++si, ++sf);
+
+            if (*sf == 0) return rc; // end of search-for - found result
+
+            search_in = rc + 1; // not this one, continue from next char
+        }
+        else
+            return NULL; // did not find first char - exit
+    }
+
+    return NULL; // reached end of source - did not find
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strtok_r.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strtok_r.c
new file mode 100644
index 00000000..5859eb5e
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_strtok_r.c
@@ -0,0 +1,27 @@
+#include "fslc_string.h"
+
+char *fslc_strtok_r(char *str, const char *delim, char **save_p)
+{
+    if (str)
+        *save_p = str;
+
+    if (*save_p == NULL)
+        return NULL;
+
+    char *r = *save_p + fslc_strspn(*save_p, delim);
+
+    char *p = fslc_strpbrk(r, delim);
+
+    if (p)
+    {
+        *(p++) = 0;
+        *save_p = p;
+    }
+    else
+    {
+        if (*r == 0) r = NULL;
+        *save_p = NULL;
+    }
+
+    return r;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_vfprintf.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_vfprintf.c
new file mode 100644
index 00000000..53424299
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_vfprintf.c
@@ -0,0 +1,347 @@
+#include "fslc_stdio.h"
+
+/* There'a a funny behaviour of va_list and va_arg() macros:
+ *    - on x86_64 compiler generates a branch of some sort for each va_arg() macro. Normally it is not a problem,
+ *      however it kinda screws up branch coverage analysis. Therefore I decided to move va_arg() accesses into
+ *      dedicated functions, minimizing the issue to one untaken branch per access function.
+ *    - passing va_list by value works fine on x86_64, but makes some tests to fail on i386. It seems that modifications
+ *      done by va_arg() is not passed back to caller. Subsequent calls to va_arg() or access functions returns wrong
+ *      values on that platform.
+ *    - OK, then. Let's pass pointer to va_list instead. Not so fast. Works fine on i386, but fails to compile on
+ *      x86_64. Fine! Wrapping va_list into a dedicated struct and passing around pointer to it.
+ *
+ *    Why such a fuss about a few untaken branches in tests? Well, just because! Also, if I ever decide to refactor
+ *    _fslc_vfprintf_impl() - the case statement is getting a bit long and messy, it should make things easier if
+ *    argument list can be passed around freely (as opposed to using it from single function).
+ */
+
+struct va_list_w
+{
+    va_list arg;
+};
+
+/* Prototype for printf's internal implementation */
+static int _fslc_vfprintf_impl(FSLC_FILE *stream, const char *format, struct va_list_w *args);
+
+
+/* Main exported function */
+int fslc_vfprintf(FSLC_FILE *stream, const char *format, va_list arg)
+{
+    if (stream->pre_output) stream->pre_output(stream);
+
+    struct va_list_w argw;
+    va_copy(argw.arg, arg); // can not assign directly, should make a copy
+
+    int res = _fslc_vfprintf_impl(stream, format, &argw);
+
+    va_end(argw.arg); // and free it after use
+
+    if (stream->post_output) stream->post_output(stream);
+
+    return res;
+}
+
+/* Prototype to private FSLIBC function - implemented elsewhere */
+int _fslc_fputs_impl(const char *str, FSLC_FILE *stream);
+
+
+/* Prototypes for internal functions */
+static int _fslc_put_sint_l(signed long v, FSLC_FILE *stream);
+static int _fslc_put_uint_l(unsigned long v, FSLC_FILE *stream);
+static int _fslc_put_hex_l(unsigned long v, FSLC_FILE *stream, char alpha);
+
+static int _get_sint_arg(struct va_list_w *arg);
+static unsigned _get_uint_arg(struct va_list_w *arg);
+static long long _get_slonglong_arg(struct va_list_w *arg);
+static unsigned long long _get_ulonglong_arg(struct va_list_w *arg);
+static void *_get_ptr_arg(struct va_list_w *arg);
+
+/* There are some considerations when formatting Integers for output:
+ *     - on 32-bit systems integers will mostly be 32 bits long, except when one REALLY
+ *       wants to print long long. It should be more optimal to use 32-bit calculations
+ *       when possible and invoke 64-bit only when needed. To support that we provide 2
+ *       separate implementations.
+ *     - on 64-bit systems may be 32 or 64 bits, but there is no real benefit from
+ *       using shorter bit size. Hence common implementation.
+ *     - this library does not aim to support systems with shorter integer sizes (like 16-bit)
+ *       but it it did, it would probably make sense to provide optimized ports for these cases
+ *       as well.
+ * 
+ * Buffer size calculations:
+ *   Max UInt32 fits in 10 bytes (+1 for zero terminator) decimal
+ *   2**32 - 1 == 4294967295z
+ *                FFFFFFFFz
+ *                01234567890
+ * 
+ *   Max UInt64 fits in 10 bytes (and +1 for \0)
+ *   2**64 -1  == 18446744073709551615z
+ *                FFFFFFFFFFFFFFFFz
+ *                012345678901234567890
+ */
+
+#define BUFSIZE_LONG_LONG_DECIMAL   20
+#define BUFSIZE_LONG_HEX            (__SIZEOF_LONG__ * 2)
+#define BUFSIZE_LONG_LONG_HEX       (__SIZEOF_LONG_LONG__ * 2)
+#if __SIZEOF_LONG__ == 4
+
+#define BUFSIZE_LONG_DECIMAL    10
+static int _fslc_put_sint_ll(signed long long v, FSLC_FILE *stream);
+static int _fslc_put_uint_ll(unsigned long long v, FSLC_FILE *stream);
+static int _fslc_put_hex_ll(unsigned long long v, FSLC_FILE *stream, char alpha);
+
+#define _get_slong_arg      _get_sint_arg
+#define _get_ulong_arg      _get_uint_arg
+
+#elif __SIZEOF_LONG__ == 8
+
+#define BUFSIZE_LONG_DECIMAL    BUFSIZE_LONG_LONG_DECIMAL
+#define _fslc_put_sint_ll   _fslc_put_sint_l
+#define _fslc_put_uint_ll   _fslc_put_uint_l
+#define _fslc_put_hex_ll    _fslc_put_hex_l
+
+#define _get_slong_arg      _get_slonglong_arg
+#define _get_ulong_arg      _get_ulonglong_arg
+
+#endif
+
+#define FLAG_LONG       1
+#define FLAG_VERYLONG   3
+
+static int _fslc_vfprintf_impl(FSLC_FILE *stream, const char *format, struct va_list_w *arg)
+{
+    int res = 0;
+    int pr;
+    const char *c;
+    
+    for (c = format; *c; ++c)
+    {
+        if (*c == '%')
+        {
+            int flags = 0;
+            
+            for (;;) 
+            {
+                ++c;
+                switch (*c)
+                {
+                    case 's':
+                        pr = _fslc_fputs_impl((const char *)_get_ptr_arg(arg), stream);
+                        if (pr < 0) return pr;
+                        res += pr;
+                        break;
+
+                    case 'c':
+                        pr = stream->putc(_get_sint_arg(arg), stream);
+                        if (pr < 0) return pr;
+                        ++res;
+                        break;
+                        
+                    case '%':
+                        pr = stream->putc('%', stream);
+                        if (pr < 0) return pr;
+                        ++res;
+                        break;
+                    
+                    case 'i':
+                    case 'd':
+                        if ((flags & FLAG_VERYLONG) == FLAG_VERYLONG)
+                            pr = _fslc_put_sint_ll(_get_slonglong_arg(arg), stream);
+                        else if (flags & FLAG_LONG)
+                            pr = _fslc_put_sint_l(_get_slong_arg(arg), stream);
+                        else
+                            pr = _fslc_put_sint_l(_get_sint_arg(arg), stream);
+                        
+                        if (pr < 0) return pr;
+                        res += pr;
+                        break;
+                    
+                    case 'u':
+                        if ((flags & FLAG_VERYLONG) == FLAG_VERYLONG)
+                            pr = _fslc_put_uint_ll(_get_ulonglong_arg(arg), stream);
+                        else if (flags & FLAG_LONG)
+                            pr = _fslc_put_uint_l(_get_ulong_arg(arg), stream);
+                        else
+                            pr = _fslc_put_uint_l(_get_uint_arg(arg), stream);
+                        
+                        if (pr < 0) return pr;
+                        res += pr;
+                        break;
+                    
+                    case 'x':
+                        if ((flags & FLAG_VERYLONG) == FLAG_VERYLONG)
+                            pr = _fslc_put_hex_ll(_get_ulonglong_arg(arg), stream, 'a');
+                        else if (flags & FLAG_LONG)
+                            pr = _fslc_put_hex_l(_get_ulong_arg(arg), stream, 'a');
+                        else
+                            pr = _fslc_put_hex_l(_get_uint_arg(arg), stream, 'a');
+                        
+                        if (pr < 0) return pr;
+                        res += pr;
+                        break;
+                    
+                    case 'X':
+                        if ((flags & FLAG_VERYLONG) == FLAG_VERYLONG)
+                            pr = _fslc_put_hex_ll(_get_ulonglong_arg(arg), stream, 'A');
+                        else if (flags & FLAG_LONG)
+                            pr = _fslc_put_hex_l(_get_ulong_arg(arg), stream, 'A');
+                        else
+                            pr = _fslc_put_hex_l(_get_uint_arg(arg), stream, 'A');
+                        
+                        if (pr < 0) return pr;
+                        res += pr;
+                        break;
+                        
+                    case 'p':
+                        pr = _fslc_fputs_impl("0x", stream);
+                        if (pr < 0) return pr;
+                        res += pr;
+
+                        pr = _fslc_put_hex_l(_get_ulong_arg(arg), stream, 'a');
+
+                        if (pr < 0) return pr;
+                        res += pr;
+                        break;
+
+                    case 'l':
+                        if (flags & FLAG_LONG) 
+                            flags |= FLAG_VERYLONG;
+                        else
+                            flags |= FLAG_LONG;
+                        continue;
+                }
+                break;
+            }
+        } else {
+            pr = stream->putc(*c, stream);
+            if (pr < 0) return pr;
+            ++res;
+        }
+    }
+    
+    return res;
+}
+
+static int _get_sint_arg(struct va_list_w *arg)
+{
+    return va_arg(arg->arg, signed int);
+}
+
+static unsigned _get_uint_arg(struct va_list_w *arg)
+{
+    return va_arg(arg->arg, unsigned int);
+}
+
+static long long _get_slonglong_arg(struct va_list_w *arg)
+{
+    return va_arg(arg->arg, signed long long);
+}
+
+static unsigned long long _get_ulonglong_arg(struct va_list_w *arg)
+{
+    return va_arg(arg->arg, unsigned long long);
+}
+
+static void *_get_ptr_arg(struct va_list_w *arg)
+{
+    return va_arg(arg->arg, void *);
+}
+
+static int _fslc_put_sint_l(signed long v, FSLC_FILE *stream)
+{
+    if (v < 0)
+    {
+        int pr = stream->putc('-', stream);
+        if (pr < 0) return pr;
+        
+        pr = _fslc_put_uint_l(-v, stream);
+        if (pr < 0) return pr;
+        
+        return pr+1;
+    } else
+        return _fslc_put_uint_l(v, stream);
+}
+
+static int _fslc_put_uint_l(unsigned long v, FSLC_FILE *stream)
+{
+    char dbuff[BUFSIZE_LONG_DECIMAL+1], *p;
+
+    dbuff[BUFSIZE_LONG_DECIMAL] = 0;
+
+    for (p = dbuff + BUFSIZE_LONG_DECIMAL; v ; v /= 10)
+    {
+        *(--p) = (v % 10) + '0';
+    }
+
+    if (*p == 0) *(--p) = '0';
+
+    return _fslc_fputs_impl(p, stream);
+}
+
+static int _fslc_put_hex_l(unsigned long v, FSLC_FILE *stream, char alpha)
+{
+    char dbuff[BUFSIZE_LONG_HEX+1], *p;
+
+    dbuff[BUFSIZE_LONG_HEX] = 0;
+
+    for (p = dbuff + BUFSIZE_LONG_HEX; v ; v >>= 4)
+    {
+        char digit = (v & 0xF);
+        *(--p) = digit < 10 ? digit + '0' : digit - 10 + alpha;
+    }
+
+    if (*p == 0) *(--p) = '0';
+
+    return _fslc_fputs_impl(p, stream);
+}
+
+#if __SIZEOF_LONG__ == 4
+
+static int _fslc_put_sint_ll(signed long long v, FSLC_FILE *stream)
+{
+    if (v < 0)
+    {
+        int pr = stream->putc('-', stream);
+        if (pr < 0) return pr;
+        
+        pr = _fslc_put_uint_ll(-v, stream);
+        if (pr < 0) return pr;
+        
+        return pr+1;
+    } else
+        return _fslc_put_uint_ll(v, stream);
+}
+
+static int _fslc_put_uint_ll(unsigned long long v, FSLC_FILE *stream)
+{
+    char dbuff[BUFSIZE_LONG_LONG_DECIMAL+1], *p;
+
+    dbuff[BUFSIZE_LONG_LONG_DECIMAL] = 0;
+
+    for (p = dbuff + BUFSIZE_LONG_LONG_DECIMAL; v ; v /= 10)
+    {
+        *(--p) = (v % 10) + '0';
+    }
+
+    if (*p == 0) *(--p) = '0';
+
+    return _fslc_fputs_impl(p, stream);
+}
+
+static int _fslc_put_hex_ll(unsigned long long v, FSLC_FILE *stream, char alpha)
+{
+    char dbuff[BUFSIZE_LONG_LONG_HEX+1], *p;
+
+    dbuff[BUFSIZE_LONG_LONG_HEX] = 0;
+
+    for (p = dbuff + BUFSIZE_LONG_LONG_HEX; v ; v >>= 4)
+    {
+        char digit = (v & 0xF);
+        *(--p) = digit < 10 ? digit + '0' : digit - 10 + alpha;
+    }
+
+    if (*p == 0) *(--p) = '0';
+
+    return _fslc_fputs_impl(p, stream);
+}
+
+#endif
diff --git a/Source/hoc-clk/bpmpfw/source/libc/src/fslc_vprintf.c b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_vprintf.c
new file mode 100644
index 00000000..6f5abd1e
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc/src/fslc_vprintf.c
@@ -0,0 +1,6 @@
+#include "fslc_stdio.h"
+
+int fslc_vprintf(const char *format, va_list arg)
+{
+    return fslc_vfprintf(fslc_stdout, format, arg);
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc_platform.cpp b/Source/hoc-clk/bpmpfw/source/libc_platform.cpp
new file mode 100644
index 00000000..3f3efc4c
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc_platform.cpp
@@ -0,0 +1,18 @@
+#include <stdio.h>
+
+#include "regs.hpp"
+
+namespace {
+
+    int UartStreamPutc(int c, FILE *) {
+        UartPutc(static_cast<char>(c));
+        return c;
+    }
+
+    FILE g_uartStdout = { nullptr, UartStreamPutc, nullptr, nullptr, nullptr, -1 };
+
+} // namespace
+
+void InitializeLibc() {
+    stdout = &g_uartStdout;
+}
diff --git a/Source/hoc-clk/bpmpfw/source/libc_platform.hpp b/Source/hoc-clk/bpmpfw/source/libc_platform.hpp
new file mode 100644
index 00000000..4268a9c5
--- /dev/null
+++ b/Source/hoc-clk/bpmpfw/source/libc_platform.hpp
@@ -0,0 +1,3 @@
+#pragma once
+
+void InitializeLibc();
diff --git a/Source/hoc-clk/bpmpfw/source/main.cpp b/Source/hoc-clk/bpmpfw/source/main.cpp
index e08baa22..4e57d8db 100644
--- a/Source/hoc-clk/bpmpfw/source/main.cpp
+++ b/Source/hoc-clk/bpmpfw/source/main.cpp
@@ -1,7 +1,12 @@
+#include <stdio.h>
+
+#include "libc_platform.hpp"
 #include "regs.hpp"
 
 extern "C" void main() {
-    UartPuts("[bpmpfw]: Hello from BPMP-FW\n");
+    InitializeLibc();
+
+    printf("[hoc-bpmpfw] Starting bpmpfw\n");
 
     for (;;);
 }
diff --git a/Source/hoc-clk/bpmpfw/source/regs.hpp b/Source/hoc-clk/bpmpfw/source/regs.hpp
index 00efd9eb..4f8d5965 100644
--- a/Source/hoc-clk/bpmpfw/source/regs.hpp
+++ b/Source/hoc-clk/bpmpfw/source/regs.hpp
@@ -7,6 +7,11 @@ using u32 = std::uint32_t;
 
 #define MMIO32(addr) (*reinterpret_cast<volatile u32 *>(addr))
 
+constexpr u32 FwRamStart    = 0x40004000;
+constexpr u32 FwRamEnd      = 0x4000C000;
+constexpr u32 WorkRamStart  = FwRamEnd;
+constexpr u32 WorkRamEnd    = 0x40010000;
+
 constexpr u32 FlowCtlrBase        = 0x60007000;
 constexpr u32 FlowCtlrHaltCopEvents = 0x004;
 
diff --git a/Source/hoc-clk/sysmodule/perms.json b/Source/hoc-clk/sysmodule/perms.json
index 01728ddf..57e821af 100644
--- a/Source/hoc-clk/sysmodule/perms.json
+++ b/Source/hoc-clk/sysmodule/perms.json
@@ -3,7 +3,7 @@
 	"title_id": "0x00FF0000636C6BFF",
 	"title_id_range_min": "0x00FF0000636C6BFF",
 	"title_id_range_max": "0x00FF0000636C6BFF",
-	"main_thread_stack_size": "0x0000C000",
+	"main_thread_stack_size": "0x0000F000",
 	"main_thread_priority": 16,
 	"default_cpu_id": 3,
 	"process_category": 1,
diff --git a/Source/hoc-clk/sysmodule/src/board/board.cpp b/Source/hoc-clk/sysmodule/src/board/board.cpp
index 8bfeb2bb..da191e6d 100644
--- a/Source/hoc-clk/sysmodule/src/board/board.cpp
+++ b/Source/hoc-clk/sysmodule/src/board/board.cpp
@@ -182,6 +182,7 @@ namespace board {
         if (R_FAILED(bpmpfwRc)) {
             fileUtils::LogLine("[bpmp] StartBpmfwExecution failed: 0x%x", bpmpfwRc);
         }
+        bpmp::StartSleepMonitorThread();
 
         // PMC exosphere check
         SecmonArgs args = {};
@@ -211,6 +212,8 @@ namespace board {
     }
 
     void Exit() {
+        bpmp::StopSleepMonitorThread();
+
         if (HOSSVC_HAS_CLKRST) {
             clkrstExit();
         } else {
diff --git a/Source/hoc-clk/sysmodule/src/bpmp/bpmp.cpp b/Source/hoc-clk/sysmodule/src/bpmp/bpmp.cpp
index e7390bdc..41c0792b 100644
--- a/Source/hoc-clk/sysmodule/src/bpmp/bpmp.cpp
+++ b/Source/hoc-clk/sysmodule/src/bpmp/bpmp.cpp
@@ -64,6 +64,38 @@ namespace bpmp {
             return *reinterpret_cast<volatile u32 *>(base_va + offset);
         }
 
+        // Late in the boot chain, otherwise a fatal will occur from invalid boot state
+        constexpr u32 pscDependencies[] = { PscPmModuleId_Olsc };
+        constexpr PscPmModuleId PscModuleId = (PscPmModuleId)705;
+
+        PscPmModule s_pscModule;
+        bool s_pscPrepared = false;
+        Thread s_pscThread;
+        bool s_pscExit = false;
+
+        void PscThreadFunc(void *) {
+            while (!s_pscExit) {
+                Result rc = eventWait(&s_pscModule.event, 1'000'000'000ULL);
+                if (R_FAILED(rc)) {
+                    continue; // Timeout
+                }
+
+                PscPmState state;
+                u32 flags;
+                rc = pscPmModuleGetRequest(&s_pscModule, &state, &flags);
+                if (R_SUCCEEDED(rc)) {
+                    if (state == PscPmState_Awake) {
+                        Result wrc = StartBpmfwExecution();
+                        if (R_FAILED(wrc)) {
+                            fileUtils::LogLine("[bpmp] restart after wake failed: 0x%x", wrc);
+                        }
+                    }
+
+                    pscPmModuleAcknowledge(&s_pscModule, state);
+                }
+            }
+        }
+
     } // namespace
 
     Result StartBpmfwExecution() {
@@ -137,4 +169,48 @@ namespace bpmp {
         return 0;
     }
 
+    void StartSleepMonitorThread() {
+        if (!IsPatchedExosphere()) {
+            fileUtils::LogLine("[bpmp] Cant start BPMP without exosphere patch");
+            return;
+        }
+
+        Result rc = pscmInitialize();
+        if (R_FAILED(rc)) {
+            fileUtils::LogLine("[bpmp] pscmInitialize failed: 0x%x", rc);
+            return;
+        }
+
+        rc = pscmGetPmModule(&s_pscModule, PscModuleId, pscDependencies, sizeof(pscDependencies) / sizeof(u32), true);
+        if (R_FAILED(rc)) {
+            fileUtils::LogLine("[bpmp] pscmGetPmModule failed: 0x%x", rc);
+            pscmExit();
+            return;
+        }
+        s_pscPrepared = true;
+
+        rc = threadCreate(&s_pscThread, PscThreadFunc, nullptr, NULL, 0x1000, 0x10, 3);
+        if (R_FAILED(rc)) {
+            fileUtils::LogLine("[bpmp] failed to create psc thread: 0x%x", rc);
+            return;
+        }
+        threadStart(&s_pscThread);
+    }
+
+    void StopSleepMonitorThread() {
+        if (!s_pscPrepared) {
+            return;
+        }
+
+        s_pscExit = true;
+        eventFire(&s_pscModule.event);
+        threadWaitForExit(&s_pscThread);
+        threadClose(&s_pscThread);
+
+        pscPmModuleFinalize(&s_pscModule);
+        pscPmModuleClose(&s_pscModule);
+        pscmExit();
+        s_pscPrepared = false;
+    }
+
 } // namespace bpmp
diff --git a/Source/hoc-clk/sysmodule/src/bpmp/bpmp.hpp b/Source/hoc-clk/sysmodule/src/bpmp/bpmp.hpp
index e860f662..7a57069c 100644
--- a/Source/hoc-clk/sysmodule/src/bpmp/bpmp.hpp
+++ b/Source/hoc-clk/sysmodule/src/bpmp/bpmp.hpp
@@ -20,4 +20,7 @@
 
 namespace bpmp {
     Result StartBpmfwExecution();
+
+    void StartSleepMonitorThread();
+    void StopSleepMonitorThread();
 }
diff --git a/Source/hoc-clk/sysmodule/src/file/file_utils.cpp b/Source/hoc-clk/sysmodule/src/file/file_utils.cpp
index 8af7e964..f519a198 100644
--- a/Source/hoc-clk/sysmodule/src/file/file_utils.cpp
+++ b/Source/hoc-clk/sysmodule/src/file/file_utils.cpp
@@ -103,7 +103,7 @@ namespace fileUtils {
         va_list args;
         va_start(args, format);
 
-        char buff[0xfff];
+        char buff[0x200];
         int len = vsnprintf(buff, sizeof(buff), format, args);
         va_end(args);
 
diff --git a/Source/hoc-clk/sysmodule/src/main.cpp b/Source/hoc-clk/sysmodule/src/main.cpp
index f7c5b0c1..f2452f05 100644
--- a/Source/hoc-clk/sysmodule/src/main.cpp
+++ b/Source/hoc-clk/sysmodule/src/main.cpp
@@ -38,7 +38,7 @@
 #include "mgr/clock_manager.hpp"
 
 
-#define INNER_HEAP_SIZE 0x40000
+#define INNER_HEAP_SIZE 0x48000
 
 extern "C" {
 void virtmemSetup(void);
diff --git a/Source/hoc-clk/sysmodule/src/mgr/clock_manager.cpp b/Source/hoc-clk/sysmodule/src/mgr/clock_manager.cpp
index 223692ab..c035c11e 100644
--- a/Source/hoc-clk/sysmodule/src/mgr/clock_manager.cpp
+++ b/Source/hoc-clk/sysmodule/src/mgr/clock_manager.cpp
@@ -30,7 +30,6 @@
 #include <i2c.h>
 
 #include "../board/board.hpp"
-#include "../bpmp/bpmp.hpp"
 #include "../display/aula.hpp"
 #include "../display/display_refresh_rate.hpp"
 #include "../file/config.hpp"
@@ -41,7 +40,6 @@
 #include "../hos/process_management.hpp"
 #include "../i2c/i2cDrv.h"
 #include "../ipc/ipc_service.hpp"
-#include "../mapping/mem_map.hpp"
 #include "../soc/gm20b.hpp"
 #include "../util/lockable_mutex.h"
 #include "clock_manager.hpp"
@@ -357,23 +355,6 @@ namespace clockManager {
         if (++tick > 10) {
             tick = 0;
 
-            // Restart BPMP after sleep.
-            if (IsPatchedExosphere()) {
-                svcSleepThread(1'500'000'000);
-                constexpr u32 FlowCtlrPhysBase = 0x60007000;
-                constexpr u32 FlowCtlrHaltCopEvents = 0x004;
-                constexpr u32 HaltCopEventsModeShift = 29;
-                constexpr u32 HaltCopEventsModeStop = 2;
-
-                u32 haltReg = SmcReadWriteRegister(FlowCtlrPhysBase + FlowCtlrHaltCopEvents, 0, 0);
-                if ((haltReg >> HaltCopEventsModeShift) == HaltCopEventsModeStop) {
-                    Result rc = bpmp::StartBpmfwExecution();
-                    if (R_FAILED(rc)) {
-                        fileUtils::LogLine("[bpmp] restart after sleep failed: 0x%x", rc);
-                    }
-                }
-            }
-
             if (config::GetConfigValue(HocClkConfigValue_BatteryChargeCurrent)) {
                 I2c_Bq24193_SetFastChargeCurrentLimit(config::GetConfigValue(HocClkConfigValue_BatteryChargeCurrent));
             }