3. Instructions
522
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Flags
Function
îš„ FIXD
FIXD(841) converts the integer portion of the double-precision (64-bit) floating-point number in words S
to S+3 (IEEE754-format) to 16-bit signed binary data and places the result in D.
Only the integer portion of the floating-point data is converted, and the fraction portion is truncated.
Example conversions:
A floating-point value of 3.5 is converted to 3.
A floating-point value of -3.5 is converted to -3.
îš„ FIXD
FIXLD(842) converts the integer portion of the double-precision (64-bit) floating-point number in words
S to S+3 (IEEE754-format) to 32-bit signed binary data and places the result in D+1 and D.
Only the integer portion of the floating-point data is converted, and the fraction portion is truncated.
Example conversions:
A floating-point value of 2,147,483,640.5 is converted to 2,147,483,640.
A floating-point value of -2,147,483,640.5 is converted to -2,147,483,640.
Name Label
Operation
FIXD FIXLD
Error Flag P_ER • ON if the source data is not recognized as
floating-point data.
• ON if the source data (S) is not a number (NaN).
• ON if the integer portion of the source data (S)
is not within the range of -32,768 to 32,767.
• OFF in all other cases.
• ON if the source data is not recognized as
floating-point data.
• ON if the data in words S to S+3 is not a number
(NaN).
• ON if the integer portion of words S to S+3 is
not within the range of -2,147,483,648 to
2,147,483,647.
• OFF in all other cases.
Equals Flag P_EQ • ON if the result is 0000/0000 0000.
• OFF in all other cases.
Negative Flag P_N • ON if bit 15 of the result is ON.
• OFF in all other cases.
S+3CH SCH
DCH
S+1CHS+2CH
Floating-point data (64 bits)
Signed binary data (16 bits)
S+3CH
D+1CH
SCH
DCH
S+2CH S+1CH
Floating-point data (64 bits)
Signed binary data (32 bits)
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