Math Processor Unit Library

libmpu – library of arithmetic functions for integer, real, and complex numbers of increased digit capacity

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author: kx <kx@radix-linux.su> 2025-01-05 15:42:39 +0300 committer: kx <kx@radix-linux.su> 2025-01-05 15:42:39 +0300 commit: 41c271dacd0d2e4eae1378b098448e3554ea657b parent: 662a29cbe51f565cb7e04345772b16795fbf4182
Commit Summary:
man: pages fot integer operations
Diffstat:
1 file changed, 63 insertions, 0 deletions
diff --git a/man/idiv.3mpu b/man/idiv.3mpu
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+.TH idiv 3  "December 27, 2024" "libmpu" "LibMPU Programmer's Manual"
+.SH NAME
+\fBidiv\fP \- unsigned division of integers
+.SH SYNOPSIS
+.nf
+.B #include <libmpu.h>
+.PP
+.BI "void idiv( mpu_int *" quot ", mpu_int *" rem ", mpu_int *" num ", mpu_int *" den ", int " nb " );
+.fi
+.SH DESCRIPTION
+The \fBidiv()\fP function performs the unsigned division of the variable located at \fBnum\fP
+by the variable located at \fBden\fP. The result is placed at \fBquot\fP. The remainder of the
+division is placed at \fBrem\fP. The memory contents at addresses \fBnum\fP, \fBden\fP are not
+changed, the previous memory contents at addresses \fBquot\fP, \fBrem\fP are lost.
+The \fBnb\fP parameter determines the size of the operands (in bytes) located at the addresses
+\fBquot\fP, \fBrem\fP, \fBnum\fP, \fBden\fP.
+.PP
+The function affects the flags \fBA\fP, \fBC\fP, \fBO\fP, \fBP\fP, \fBS\fP, \fBZ\fP, \fBR\fP.
+.PP
+The \fBA\fP flag is reset to 0. The \fBP\fP flag is set only when the size of the \fBprod\fP
+operand is one or two bytes (\fBnb\fP == 1 || \fBnb\fP == 2). The \fBR\fP (major || remainder)
+flag is set when the remainder is obtained of the division.
+.sp
+.SH SEE ALSO
+.BR iadd(3),
+.BR isub(3),
+.BR iadc(3),
+.BR isbb(3),
+.BR ishl(3),
+.BR ishr(3),
+.BR isal(3),
+.BR isar(3),
+.BR irol(3),
+.BR iror(3),
+.BR ircl(3),
+.BR ircr(3),
+.BR ishln(3),
+.BR ishrn(3),
+.BR isaln(3),
+.BR isarn(3),
+.BR iroln(3),
+.BR irorn(3),
+.BR ircln(3),
+.BR ircrn(3),
+.BR ineg(3),
+.BR inot(3),
+.BR iand(3),
+.BR itest(3),
+.BR icmp(3),
+.BR ior(3),
+.BR ixor(3),
+.BR iinc(3),
+.BR idec(3),
+.BR ixchg(3),
+.BR icpy(3),
+.BR icvt(3),
+.BR imul(3),
+.BR ismul(3),
+.BR isdiv(3),
+.BR iatoi(3),
+.BR iatoui(3),
+.BR iitoa(3),
+.BR iuitoa(3).