National Instruments AutoCode NI MATRIX - Manual (Page 54)

Chapter 2 C Language Reference
© National Instruments Corporation 2-37 AutoCode Reference
Figure 2-7. AutoCode/C Conversion Macros for Fixed-to-Integer Conversions
For example, the macro to convert an unsigned 8-bit number to an integer
number with a shift of
rp bits, and with overflow protection is:
iALIGNubp(n,rp)
Figure 2-8. AutoCode/C Conversion Macros for Integer-to-Fixed Conversions
For example, the macro to convert an integer number to a signed 8-bit
number with a shift of
rp bits, and with overflow protection is:
sbALIGNip(n,rp)
n = Fixed-point operand to align
i ALIGN so wo p (n, rp)
rp = Number of bits to shift
p = Overflow protection (optional)
wo = Operand wordsize (b=byte, s=short, l=long)
so = Operand sign (u=unsigned, s=signed)
ALIGN (indicates conversion)
i = Indicates integer result
(if rp < 0, perform a left-shift;
if rp > 0, perform a right-shift)
n = Fixed-point operand to align
sr wr ALIGN i p (n, rp)
rp = Number of bits to shift
p = Overflow protection (optional)
i = Indicates integer input
ALIGN (indicates conversion)
wr = Result wordsize (b=byte, s=short, l=long)
sr = Result sign (u=unsigned, s=signed)
(if rp < 0, perform a left-shift;
if rp > 0, perform a right-shift)