diff --git a/test/float/Makefile b/test/float/Makefile
index 7b5e75d92..b9c3551b5 100644
--- a/test/float/Makefile
+++ b/test/float/Makefile
@@ -12,14 +12,17 @@ FILES=\
 	float-minimal.prg \
 	float-minimal.bin \
 	float-minimal.woz.bin \
+	float-minimal.soft.bin \
 	\
 	float-basic.prg \
 	float-basic.bin \
 	float-basic.woz.bin \
+	float-basic.soft.bin \
 	\
 	float-basic-cmp.prg \
 	float-basic-cmp.bin \
-	float-basic-cmp.woz.bin
+	float-basic-cmp.woz.bin \
+	float-basic-cmp.soft.bin
 	
 #	
 #	floattest.prg
@@ -35,6 +38,11 @@ CBMRUNTIME=\
 	cbmkernal/ffloor.c \
 	cbmkernal/cc65wrapper.s
 
+SOFTFLOAT=\
+	softfloat/softfloat.c \
+	softfloat/ftostr.c \
+	softfloat/cc65wrapper.s
+
 IEEERUNTIME=\
 	ieee754/feaxint.s \
 	ieee754/feaxlong.s \
@@ -115,6 +123,22 @@ float-basic-cmp.woz.s: float-basic-cmp.c $(HEADER) $(WOZRUNTIME)
 float-basic-cmp.woz.bin: float-basic-cmp.woz.s $(HEADER) $(WOZRUNTIME)
 	$(CL65) $(OPT) -t sim6502 -I ./include -o float-basic-cmp.woz.bin float-basic-cmp.woz.s $(WOZRUNTIME)
 
+###############################################################################
+float-minimal.soft.s: float-minimal.c $(HEADER) $(SOFTFLOAT)
+	$(CC65) $(OPT) -t sim6502 -I ./include --add-source -o float-minimal.soft.s float-minimal.c
+float-minimal.soft.bin: float-minimal.soft.s $(HEADER) $(SOFTFLOAT)
+	$(CL65) $(OPT) -t sim6502 -I ./include -o float-minimal.soft.bin float-minimal.soft.s $(SOFTFLOAT)
+
+float-basic.soft.s: float-basic.c $(HEADER) $(SOFTFLOAT)
+	$(CC65) $(OPT) -t sim6502 -I ./include --add-source -o float-basic.soft.s float-basic.c
+float-basic.soft.bin: float-basic.soft.s $(HEADER) $(SOFTFLOAT)
+	$(CL65) $(OPT) -t sim6502 -I ./include -o float-basic.soft.bin float-basic.soft.s $(SOFTFLOAT)
+
+float-basic-cmp.soft.s: float-basic-cmp.c $(HEADER) $(SOFTFLOAT)
+	$(CC65) $(OPT) -t sim6502 -I ./include --add-source -o float-basic-cmp.soft.s float-basic-cmp.c
+float-basic-cmp.soft.bin: float-basic-cmp.soft.s $(HEADER) $(SOFTFLOAT)
+	$(CL65) $(OPT) -t sim6502 -I ./include -o float-basic-cmp.soft.bin float-basic-cmp.soft.s $(SOFTFLOAT)
+
 ###############################################################################
 float-minimal.c64.s: float-minimal.c $(HEADER) $(CBMRUNTIME)
 	$(CC65) $(OPT) -DCONIO -t c64 -I ./include -I ./cbmkernal --add-source -o float-minimal.c64.s float-minimal.c
@@ -177,6 +201,18 @@ runwoz: float-minimal.woz.bin float-basic.woz.bin float-basic-cmp.woz.bin
 	$(SIM65) float-basic.woz.bin
 	$(SIM65) float-basic-cmp.woz.bin
 	
+runsoft-minimal: float-minimal.soft.bin
+	$(SIM65) float-minimal.soft.bin
+runsoft-basic: float-basic.soft.bin
+	$(SIM65) float-basic.soft.bin
+runsoft-cmp: float-basic-cmp.soft.bin
+	$(SIM65) float-basic-cmp.soft.bin
+	
+runsoft: float-minimal.soft.bin float-basic.soft.bin float-basic-cmp.soft.bin
+	$(SIM65) float-minimal.soft.bin
+	$(SIM65) float-basic.soft.bin
+	$(SIM65) float-basic-cmp.soft.bin
+	
 ###############################################################################
 
 clean:
diff --git a/test/float/float-basic-cmp.c b/test/float/float-basic-cmp.c
index 3f7e75155..4252915ea 100644
--- a/test/float/float-basic-cmp.c
+++ b/test/float/float-basic-cmp.c
@@ -21,10 +21,150 @@ unsigned int var_uint;
 signed long var_slong;
 unsigned long var_ulong;
 
+int result = 0;
+
 int main(void)
 {
     printf("float-basic-cmp\n");
 
+    //-------------------------------------------------------------------------
+    // float constant vs float const
+    printf("const vs const\n");
+
+    printf("1.5f == 1.6f is ");
+    if (1.5f == 1.6f) {
+        printf("true (failed)\n");
+        result++;
+    } else {
+        printf("false\n");
+    }
+
+    printf("1.6f == 1.6f is ");
+    if (1.6f == 1.6f) {
+        printf("true\n");
+    } else {
+        printf("false (failed)\n");
+        result++;
+    }
+
+    printf("1.5f != 1.6f is ");
+    if (1.5f != 1.6f) {
+        printf("true\n");
+    } else {
+        printf("false (failed)\n");
+        result++;
+    }
+
+    printf("1.6f != 1.6f is ");
+    if (1.6f != 1.6f) {
+        printf("true (failed)\n");
+        result++;
+    } else {
+        printf("false\n");
+    }
+
+    printf("1.5f < 1.6f is ");
+    if (1.5f < 1.6f) {
+        printf("true\n");
+    } else {
+        printf("false (failed)\n");
+        result++;
+    }
+    printf("1.6f < 1.6f is ");
+    if (1.6f < 1.6f) {
+        printf("true (failed)\n");
+        result++;
+    } else {
+        printf("false\n");
+    }
+    printf("1.5f > 1.6f is ");
+    if (1.5f > 1.6f) {
+        printf("true (failed)\n");
+        result++;
+    } else {
+        printf("false\n");
+    }
+
+    printf("1.6f > 1.6f is ");
+    if (1.6f > 1.6f) {
+        printf("true (failed)\n");
+        result++;
+    } else {
+        printf("false\n");
+    }
+
+    //-------------------------------------------------------------------------
+    // float constant vs float variable
+    printf("const vs var\n");
+
+    fp1 = 1.6f;
+    printf("1.5f == 1.6f is ");
+    if (1.5f == fp1) {
+        printf("true (failed)\n");
+        result++;
+    } else {
+        printf("false\n");
+    }
+    fp1 = 1.6f;
+    printf("1.6f == 1.6f is ");
+    if (1.6f == fp1) {
+        printf("true\n");
+    } else {
+        printf("false (failed)\n");
+        result++;
+    }
+    fp1 = 1.6f;
+    printf("1.5f != 1.6f is ");
+    if (1.5f != fp1) {
+        printf("true\n");
+    } else {
+        printf("false (failed)\n");
+        result++;
+    }
+
+    fp1 = 1.6f;
+    printf("1.6f != 1.6f is ");
+    if (1.6f != fp1) {
+        printf("true (failed)\n");
+        result++;
+    } else {
+        printf("false\n");
+    }
+
+    fp1 = 1.6f;
+    printf("1.5f < 1.6f is ");
+    if (1.5f < fp1) {
+        printf("true\n");
+    } else {
+        printf("false (failed)\n");
+        result++;
+    }
+    fp1 = 1.6f;
+    printf("1.6f < 1.6f is ");
+    if (1.6f < fp1) {
+        printf("true (failed)\n");
+        result++;
+    } else {
+        printf("false\n");
+    }
+    fp1 = 1.6f;
+    printf("1.5f > 1.6f is ");
+    if (1.5f > fp1) {
+        printf("true (failed)\n");
+        result++;
+    } else {
+        printf("false\n");
+    }
+
+    fp1 = 1.6f;
+    printf("1.6f > 1.6f is ");
+    if (1.6f > fp1) {
+        printf("true (failed)\n");
+        result++;
+    } else {
+        printf("false\n");
+    }
+
     //-------------------------------------------------------------------------
     // float variable vs float constant
     printf("var vs const\n");
@@ -33,16 +173,19 @@ int main(void)
     fp1 = 1.5f;
     printf("1.5f == 1.6f is ");
     if (fp1 == 1.6f) {
-        printf("true\n");
+        printf("true (failed)\n");
+        result++;
     } else {
         printf("false\n");
     }
-    fp1 = 1.5f;
-    printf("1.5f == 1.5f is ");
-    if (1.5f == fp1) {
+
+    fp1 = 1.6f;
+    printf("1.6f == 1.6f is ");
+    if (fp1 == 1.6f) {
         printf("true\n");
     } else {
-        printf("false\n");
+        printf("false (failed)\n");
+        result++;
     }
 
 //FIXME: compiles, but is wrong, the constant in the comparison becomes 0
@@ -51,12 +194,15 @@ int main(void)
     if (fp1 != 1.6f) {
         printf("true\n");
     } else {
-        printf("false\n");
+        printf("false (failed)\n");
+        result++;
     }
-    fp1 = 1.5f;
-    printf("1.5f != 1.5f is ");
-    if (1.5f != fp1) {
-        printf("true\n");
+
+    fp1 = 1.6f;
+    printf("1.6f != 1.6f is ");
+    if (fp1 != 1.6f) {
+        printf("true (failed)\n");
+        result++;
     } else {
         printf("false\n");
     }
@@ -66,13 +212,34 @@ int main(void)
     printf("1.5f < 1.6f is ");
     if (fp1 < 1.6f) {
         printf("true\n");
+    } else {
+        printf("false (failed)\n");
+        result++;
+    }
+
+    fp1 = 1.6f;
+    printf("1.6f < 1.6f is ");
+    if (fp1 < 1.6f) {
+        printf("true (failed)\n");
+        result++;
     } else {
         printf("false\n");
     }
-    fp1 = 1.7f;
-    printf("1.7f < 1.5f is ");
-    if (1.7f < fp1) {
-        printf("true\n");
+
+    fp1 = 1.5f;
+    printf("1.5f > 1.6f is ");
+    if (fp1 > 1.6f) {
+        printf("true (failed)\n");
+        result++;
+    } else {
+        printf("false\n");
+    }
+
+    fp1 = 1.6f;
+    printf("1.6f > 1.6f is ");
+    if (fp1 > 1.6f) {
+        printf("true (failed)\n");
+        result++;
     } else {
         printf("false\n");
     }
@@ -84,7 +251,8 @@ int main(void)
     fp2 = 1.6f;
     printf("1.5f == 1.6f is ");
     if (fp1 == fp2) {
-        printf("true\n");
+        printf("true (failed)\n");
+        result++;
     } else {
         printf("false\n");
     }
@@ -92,17 +260,20 @@ int main(void)
     if (fp1 != fp2) {
         printf("true\n");
     } else {
-        printf("false\n");
+        printf("false (failed)\n");
+        result++;
     }
     printf("1.5f < 1.6f is ");
     if (fp1 < fp2) {
         printf("true\n");
     } else {
-        printf("false\n");
+        printf("false (failed)\n");
+        result++;
     }
     printf("1.5f > 1.6f is ");
     if (fp1 > fp2) {
-        printf("true\n");
+        printf("true (failed)\n");
+        result++;
     } else {
         printf("false\n");
     }
@@ -110,11 +281,13 @@ int main(void)
     if (fp1 <= fp2) {
         printf("true\n");
     } else {
-        printf("false\n");
+        printf("false (failed)\n");
+        result++;
     }
     printf("1.5f >= 1.6f is ");
     if (fp1 >= fp2) {
-        printf("true\n");
+        printf("true (failed)\n");
+        result++;
     } else {
         printf("false\n");
     }
@@ -124,23 +297,27 @@ int main(void)
     if (fp1 == fp2) {
         printf("true\n");
     } else {
-        printf("false\n");
+        printf("false (failed)\n");
+        result++;
     }
     printf("1.6f != 1.6f is ");
     if (fp1 != fp2) {
-        printf("true\n");
+        printf("true (failed)\n");
+        result++;
     } else {
         printf("false\n");
     }
     printf("1.6f < 1.6f is ");
     if (fp1 < fp2) {
-        printf("true\n");
+        printf("true (failed)\n");
+        result++;
     } else {
         printf("false\n");
     }
     printf("1.6f > 1.6f is ");
     if (fp1 > fp2) {
-        printf("true\n");
+        printf("true (failed)\n");
+        result++;
     } else {
         printf("false\n");
     }
@@ -148,14 +325,16 @@ int main(void)
     if (fp1 <= fp2) {
         printf("true\n");
     } else {
-        printf("false\n");
+        printf("false (failed)\n");
+        result++;
     }
     printf("1.6f >= 1.6f is ");
     if (fp1 >= fp2) {
         printf("true\n");
     } else {
-        printf("false\n");
+        printf("false (failed)\n");
+        result++;
     }
-
-    return 0;
+    printf("float-basic-cmp errors: %d\n", result);
+    return result;
 }
diff --git a/test/float/float-minimal.c b/test/float/float-minimal.c
index 12408e9ab..6abd597ac 100644
--- a/test/float/float-minimal.c
+++ b/test/float/float-minimal.c
@@ -7,6 +7,9 @@
 
 #ifdef CONIO
 #include <conio.h>
+#define WAIT()  cgetc()
+#else
+#define WAIT()
 #endif
 
 #include <stdlib.h>
@@ -15,6 +18,10 @@
 
 #include <_float.h>
 
+#define TEST_8
+#define TEST_16
+#define TEST_32
+
 float fp1 = 42.01002f;
 float fp2;  // non initialized
 float *fp_p; // non initialized
@@ -33,14 +40,11 @@ unsigned int var_uint;
 signed long var_slong;
 unsigned long var_ulong;
 
-int main(void)
-{
+void references(void) {
     float fp2 = 23.1234f;
 
-    printf("float-minimal\n");
-
-    printf("fp2:0x%08lx [0x41b8f5c3] %s (23.1234)\n", *((uint32_t*)&fp2), _ftostr(buf, fp2));
-    printf("fp4:0x%08lx [0x41b8f5c3] %s (23.12)\n", *((uint32_t*)&fp4), _ftostr(buf, fp4));
+    printf("fp2:0x%08lx [exp:0x41b8fcb9] %s (23.1234)\n", *((uint32_t*)&fp2), _ftostr(buf, fp2));
+    printf("fp4:0x%08lx [exp:0x41b8f5c3] %s (23.12)\n", *((uint32_t*)&fp4), _ftostr(buf, fp4));
 #if 1
     printf("(global) get address, read via ptr\n");
     // get address of global (works)
@@ -49,8 +53,8 @@ int main(void)
     // read fp via pointer and assign local
     fp2 = *fp_p;
 
-    printf("fp1:0x%08lx [0x42280a43] %s (42.01002)\n", *((uint32_t*)&fp1), _ftostr(buf, fp1));
-    printf("fp2:0x%08lx [0x42280a43] %s (42.01002)\n", *((uint32_t*)&fp2), _ftostr(buf, fp2));
+    printf("fp1:0x%08lx [exp:0x42280a43] %s (42.01002)\n", *((uint32_t*)&fp1), _ftostr(buf, fp1));
+    printf("fp2:0x%08lx [exp:0x42280a43] %s (42.01002)\n", *((uint32_t*)&fp2), _ftostr(buf, fp2));
 #endif
 #if 1
     printf("(local) get address, read via ptr\n");
@@ -62,9 +66,57 @@ int main(void)
     // read fp via pointer and assign global
     fp3 = *fp_p;
 
-    printf("fp2:0x%08lx [] %s (23.1234)\n", *((uint32_t*)&fp2), _ftostr(buf, fp2));
-    printf("fp3:0x%08lx [] %s (23.1234)\n", *((uint32_t*)&fp3), _ftostr(buf, fp3));
+    printf("fp2:0x%08lx [exp:] %s (23.1234)\n", *((uint32_t*)&fp2), _ftostr(buf, fp2));
+    printf("fp3:0x%08lx [exp:] %s (23.1234)\n", *((uint32_t*)&fp3), _ftostr(buf, fp3));
 #endif
+}
+
+void conversions(void)
+{
+    // conversions
+    printf("conversions (integer constant to float)\n");
+#ifdef TEST_8
+    fp1 = -12;
+    fp2 = 199;
+    printf("fp1 0x%08lx [] %s (-12)\n", *((uint32_t*)&fp1), _ftostr(buf, fp1));
+    printf("fp2 0x%08lx [] %s (199)\n", *((uint32_t*)&fp2), _ftostr(buf, fp2));
+#endif
+#ifdef TEST_16
+    fp1 = -4711;
+    fp2 = 42000;
+    printf("fp1 0x%08lx [] %s (-4711)\n", *((uint32_t*)&fp1), _ftostr(buf, fp1));
+    printf("fp2 0x%08lx [] %s (42000)\n", *((uint32_t*)&fp2), _ftostr(buf, fp2));
+#endif
+#ifdef TEST_32
+    fp1 = -321198;
+    fp2 = 3200098;
+    printf("fp1 0x%08lx [] %s (-321198)\n", *((uint32_t*)&fp1), _ftostr(buf, fp1));
+    printf("fp2 0x%08lx [] %s (3200098)\n", *((uint32_t*)&fp2), _ftostr(buf, fp2));
+#endif
+
+    printf("conversions (float constant to integer)\n");
+#ifdef TEST_8
+    var_schar = (signed char)12.3f;
+    printf("%s (12.3) schar:%d (12)\n", _ftostr(buf, 12.3f), (int)var_schar);
+    var_uchar = (unsigned char)19.9f;
+    printf("%s (19.9) uchar:%u (19)\n", _ftostr(buf, 19.9f), (int)var_uchar);
+#endif
+#ifdef TEST_16
+    var_sint = (signed short)1234.5f;
+    printf("%s (1234.5) sint:%d (1234)\n", _ftostr(buf, 1234.5f), var_sint);
+    var_uint = (unsigned short)1999.9f;
+    printf("%s (1999.9) uint:%u (1999)\n", _ftostr(buf, 1999.9f), var_uint);
+#endif
+#ifdef TEST_32
+    var_slong = (signed long)123456.5f;
+    printf("%s (123456.5f) slong:%ld (123456)\n", _ftostr(buf, 123456.5f), var_slong);
+    var_ulong = (unsigned long)199988.9f;
+    printf("%s (199988.9) ulong:%lu (199988)\n", _ftostr(buf, 199988.9f), var_ulong);
+#endif
+}
+
+void arithmetics(void)
+{
     // addition
 #if 1
     printf("constant + constant\n");
@@ -88,7 +140,7 @@ int main(void)
     printf("fp3:0x%08lx [] %s (0.3)\n", *((uint32_t*)&fp3), _ftostr(buf, fp3));
 #endif
     // multiplication
-#if 0
+#if 1
     printf("constant * constant\n");
     fp1 = 0.1f;
     fp2 = 0.2f;
@@ -100,7 +152,7 @@ int main(void)
 #endif
 
     // division
-#if 0
+#if 1
     printf("constant / constant\n");
     fp1 = 0.1f;
     fp2 = 0.2f;
@@ -110,10 +162,9 @@ int main(void)
     printf("    0x%08lx [] %s (0.2)\n", *((uint32_t*)&fp2), _ftostr(buf, fp2));
     printf("fp3:0x%08lx [] %s (0.3)\n", *((uint32_t*)&fp3), _ftostr(buf, fp3));
 #endif
-#ifdef CONIO
-    cgetc();
-#endif
+}
 
+void comparisons(void) {
     // comparisons
 #if 1
     /* FIXME: this does not work yet */
@@ -123,38 +174,25 @@ int main(void)
     printf("0.2f != 0.1f is "); if (0.2f != 0.1f) { printf("true\n"); } else { printf("false\n"); }
 #endif
 
-#ifdef CONIO
-    cgetc();
-#endif
+}
 
-    // conversions
-#if 1
-    printf("conversions (integer constant to float)\n");
-    fp1 = -12;
-    fp2 = 199;
-    printf("fp1 0x%08lx [] %s (-12)\n", *((uint32_t*)&fp1), _ftostr(buf, fp1));
-    printf("fp2 0x%08lx [] %s (199)\n", *((uint32_t*)&fp2), _ftostr(buf, fp2));
-    fp1 = -4711;
-    fp2 = 42000;
-    printf("fp1 0x%08lx [] %s (-4711)\n", *((uint32_t*)&fp1), _ftostr(buf, fp1));
-    printf("fp2 0x%08lx [] %s (42000)\n", *((uint32_t*)&fp2), _ftostr(buf, fp2));
-#endif
-#if 1
-    printf("conversions (float constant to integer)\n");
-    var_schar = (signed char)12.3f;
-    printf("%s (12.3) schar:%d (12)\n", _ftostr(buf, 12.3f), (int)var_schar);
-    var_uchar = (unsigned char)19.9f;
-    printf("%s (19.9) uchar:%u (19)\n", _ftostr(buf, 19.9f), (int)var_uchar);
+int main(void)
+{
+    printf("float-minimal\n");
 
-    var_sint = (signed short)1234.5f;
-    printf("%s (1234.5) sint:%d (1234)\n", _ftostr(buf, 1234.5f), var_sint);
-    var_uint = (unsigned short)1999.9f;
-    printf("%s (1999.9) uint:%u (1999)\n", _ftostr(buf, 1999.9f), var_uint);
+    references();
+    WAIT();
+
+    conversions();
+    WAIT();
+
+    comparisons();
+    WAIT();
+
+    arithmetics();
+    WAIT();
+
+    printf("float-minimal done\n");
 
-    var_slong = (signed long)123456.5f;
-    printf("%s (123456.5f) slong:%ld (123456)\n", _ftostr(buf, 123456.5f), var_slong);
-    var_ulong = (unsigned long)199988.9f;
-    printf("%s (199988.9) ulong:%lu (199988)\n", _ftostr(buf, 199988.9f), var_ulong);
-#endif
     return 0;
 }
diff --git a/test/float/softfloat/cc65wrapper.s b/test/float/softfloat/cc65wrapper.s
new file mode 100644
index 000000000..3e29df689
--- /dev/null
+++ b/test/float/softfloat/cc65wrapper.s
@@ -0,0 +1,106 @@
+
+
+    .import _int32_to_float32
+
+    ; 16bit signed -> float
+    .export axfloat
+axfloat:
+    ; FIXME
+    jmp _int32_to_float32
+
+    ; 16bit unsigned -> float
+    .export axufloat
+axufloat:
+    ; FIXME
+    jmp _int32_to_float32
+
+    ; 32bit signed -> float
+    .export eaxfloat
+eaxfloat:
+    ; FIXME
+    jmp _int32_to_float32
+
+    ; 32bit unsigned -> float
+    .export eaxufloat
+eaxufloat:
+    ; FIXME
+    jmp _int32_to_float32
+
+    .import _float32_to_int32
+
+    ; float -> 16bit int
+    .export feaxint
+feaxint:
+    ; FIXME
+    jmp _float32_to_int32
+    ; float -> 32bit int
+    .export feaxlong
+feaxlong:
+    jmp _float32_to_int32
+
+    .export fbnegeax
+fbnegeax:
+
+    .import _float32_add
+    .import _float32_sub
+    .import _float32_mul
+    .import _float32_div
+
+    .export ftosaddeax
+ftosaddeax:
+     jmp _float32_add
+    .export ftossubeax
+ftossubeax:
+     jmp _float32_sub
+    .export ftosmuleax
+ftosmuleax:
+     jmp _float32_mul
+    .export ftosdiveax
+ftosdiveax:
+     jmp _float32_div
+
+
+     .import _float32_eq
+     .import _float32_le
+     .import _float32_lt
+
+    ; test for equal
+    .export ftoseqeax
+ftoseqeax:
+    ; arg0:     a/x/sreg/sreg+1
+    ; arg1:     (sp),y (y=0..3)
+    jmp _float32_eq
+
+    ; test for not equal
+    .export ftosneeax
+ftosneeax:
+    ; arg0:     a/x/sreg/sreg+1
+    ; arg1:     (sp),y (y=0..3)
+    jsr _float32_eq
+    eor #1
+    rts
+
+
+    ; Test for less than or equal to
+    .export ftosleeax
+ftosleeax:
+    jmp _float32_le
+
+    .export ftosgteax
+ftosgteax:
+    jsr _float32_le
+    eor #1
+    rts
+
+    ; Test for less than
+    .export ftoslteax
+ftoslteax:
+    jmp _float32_lt
+
+    ; Test for "not less than" -> "equal or greater than"
+    ; Test for greater than or equal to
+    .export ftosgeeax
+ftosgeeax:
+    jsr _float32_lt
+    eor #1
+    rts
diff --git a/test/float/softfloat/ftostr.c b/test/float/softfloat/ftostr.c
new file mode 100644
index 000000000..130d87480
--- /dev/null
+++ b/test/float/softfloat/ftostr.c
@@ -0,0 +1,11 @@
+
+#include <stdlib.h>
+#include <stdio.h>
+
+char *_ftostr(char *buffer, float f) {
+    signed long intpart = (signed long)f;
+    float fracpart;
+    fracpart = f - (float)(intpart);
+    sprintf(buffer, "<0x%08lx:%ld.%ld>", *((unsigned long*)(&f)), intpart, fracpart * 1000);
+    return &buffer[0];
+}