Under certain conditions, FloatToStr erroneously returns 0.0xx as follows:
.data
r8n Real8 0.00999999
r8o Real8 0.0099999999
r8p Real8 0.009999999999
r8q Real8 0.00999999999999
r8r Real8 0.0099999999999999
0.009999990 r8n MasmBasic
9.999990e-003 r8n FloatToStr
0.010000000 r8o MasmBasic
0.000000e-003 r8o FloatToStr
0.010000000 r8p MasmBasic
0.000000e-003 r8p FloatToStr
0.010000000 r8q MasmBasic
0.000000e-003 r8q FloatToStr
0.010000000 r8r MasmBasic
0.000000e-003 r8r FloatToStr
FloatToStr2 is not affected by this rounding error. Example attached (for use with the MasmBasic library (http://www.masm32.com/board/index.php?topic=12460)).