Virtual Devices (3.1) (vdag31qh.hlp) (
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Convert_Fixed_Point_String
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include vmm.inc
mov ecx, Places ; number of decimal places
mov edx, String ; points to string to convert
VMMcall Convert_Fixed_Point_String
mov [Value], eax ; fixed-point value
mov [TermChar], edx ; pointer to terminating character
The Convert_Fixed_Point_String service converts a string representing a
fixed-point number into a fixed-point value. This service also returns a
pointer to the character in the string that marked the end of the number.
This service is only valid during initialization.
Parameter Description
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Places Specifies the number of digits after the decimal point to
convert. If a fixed-point number has extra digits, the service
skips over the digits without calculating them into the
fixed-point value.
String Points to the null-terminated string to convert. The Comments
section describes the format of the string.
Return Value
The EAX register contains the normalized value of fixed-point number; the
actual value is computed as EAX * 10 ** (-Places). The EDX register contains
the address of the character in the string marking the end of the
fixed-point number.
Comments
A fixed-point number is a decimal number that consists of an integer, a
fraction, or a combination of integer and fraction. The integer can be any
combination of decimal digits and may be preceded by a plus sign (+) or a
minus sign (-) to indicate a positive or negative fixed-point value. The
fraction can be any combination of decimal digits but must be preceded with
a decimal point (.).
Uses
EAX, EDX, Flags
See Also
Convert_Boolean_String, Convert_Decimal_String, Convert_Hex_String
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