NAME

addlotrs - create a logical transistor

See the file buster/alliance/alc_origin.1.en.gz.

SYNOPSYS

#include "mlo.h"
lotrs_list ∗addlotrs(ptfig, type, x, y, width, length,
		ps, pd, xs, xd,
		ptgrid, ptsource, ptdrain, ptbulk, name)
lofig_list ∗ptfig;
char type;
long x, y;
unsigned short width, length;
unsigned short ps, pd;
unsigned short xs, xd;
losig_list ∗ptgrid, ∗ptsource, ∗ptdrain, ∗ptbulk;
const char ∗name;

PARAMETERS

ptfig: Pointer to the figure in which the transistor should be added
type: transistor type
x, y: Transistor coordinates
width, length: Transistor grid width and length
ps, pd: Perimeters of the source and drain
xs, xd: Values to compute the areas of the source and drain, see lotrs(3) for the effective area computation
ptgrid: Pointer to the signal to be connected on the transistor grid
ptsource: Pointer to the signal to be connected on the transistor source
ptdrain: Pointer to the signal to be connected on the transistor drain
ptbulk: Pointer to the signal to be connected on the transistor bulk
name: Transistor instance name

DESCRIPTION

addlotrs creates a new transistor, and adds it to the list of transistors pointed to by ptfig->LOTRS. The new transistor is added in front of the list, and becomes itself the list head.
The type parameter can take six values :

TRANSN: for a N channel transistor
TRANSP: for a P channel transistor
TRANSN_FAST: for a high speed N channel transistor
TRANSP_FAST: for a high speed P channel transistor
TRANSN_HVIO: for a low leakage N channel transistor
TRANSP_HVIO: for a low leakage P channel transistor

The x, y, width , length, ps, pd, xs and xd, arguments fill respectivly the X, Y, WIDTH, LENGTH, PS, PD, XS and XD fields.
Four connectors are created each time a transistor is added, and the ptgrid, ptsource, ptdrain and ptbulk losigs are attached to the SIG field of the locon of the appropriate connector. The connectors names are grid, source, drain and bulk, their direction, DIR, are set to 'T', and their TYPE INTERNAL. For details on the structures, see locon(3) and lotrs(3).

RETURN VALUE

addlotrs returns a pointer to the newly created transistor.

ERRORS

"∗∗∗ mbk error ∗∗∗ illegal transistor type : type"

The type is not a legal transistor type.

EXAMPLE

#include "mlo.h"
void n1_y() /∗ transistor netlist of an inverter ∗/
{
lofig_list ∗pt;
losig_list ∗in, ∗out, ∗vdd, ∗vss;
	pt = addlofig("n1_y");
	addlocon(pt, "in", in = givelosig(pt, 0), IN);
	addlocon(pt, "out", out = givelosig(pt, 1), OUT);
	addlocon(pt, "vdd", vdd = givelosig(pt, 2), IN);
	addlocon(pt, "vss", vdd = givelosig(pt, 3), IN);
	addlotrs(pt, TRANSN, 0, 0, 6, 1, in, vss, out, vss, trn_n1_y);
	addlotrs(pt, TRANSP, 0, 0, 12, 1, in, vdd, out, vdd, trp_n1_y);
}