National-instruments AutoCode NI MATRIX Uživatelský manuál stáhnout pdf (Strana 56)

Chapter 2 C Language Reference

Table 2-7 shows permissible operand and result sizes for the arithmetic

macros.

For example, the macro to add two 8-bit unsigned numbers with overflow

protection and produce an unsigned 8-bit result is:

ubADD_ub_ubp(n1,n2,rp1,rp2,rp3)

The macro to subtract a 16-bit unsigned number from a 16-bit signed

number with overflow protection and produce an unsigned 16-bit result is:

usSUB_ss_usp(n1,n2,rp1,rp2,rp3)

The macro to multiply two 16-bit signed numbers with overflow protection

and produce a 16-bit signed result is:

ssMUL_ss_ssp(n1,n2,rp1,rp2,rp3)

The macro to divide two 32-bit signed numbers with overflow protection

and produce a 32-bit signed result is:

slDIV_sl_slp(n1,n2,rp1,rp2,rp3)

Table 2-7. Arithmetic Macros—Operand and Result Sizes

Operation Operand 1 Size Operand 2 Size Result Size

addition

subtraction

multiplication

byte byte byte or short

short short short or long

long long long

division

(operand 1 is the

dividend; operand 2

is the divisor)

byte byte byte

short byte byte

short short short

long short short

long long long

1 2 ... 51 52 53 54 55 56 57 58 59 60 61 ... 249 250

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National-instruments AutoCode NI MATRIX Uživatelský manuál Strana 56