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added rotate operator in logic function description

This commit is contained in:
Stefan Frederik 2021-01-04 17:24:57 +01:00
parent 2e0aa85408
commit ce7f1d7dbf
4 changed files with 32 additions and 8 deletions
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7
src/hilight.c
View File

@ -915,6 +915,13 @@ int eval_logic_expr(int inst, int output)
stack[sp] = stack[sp - 1];
sp++;
}
/* rotate down: bottom element goes to top */
} else if(str[pos] == 'r') {
if(sp > 1) {
int tmp = stack[0];
for(i = 0 ; i < sp - 1; i++) stack[i] = stack[i + 1];
stack[sp - 1] = tmp;
}
} else if(str[pos] == 'x') { /* exchange top 2 operands */
if(sp > 1) {
int tmp = stack[sp - 2];

2
src/xschemrc
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@ -224,7 +224,7 @@
# set terminal {xterm -geometry 100x35 -fn 9x15 -bg black -fg white -cr white -ms white }
#### lxterminal is not OK since it will not inherit env vars:
#### In order to reduce memory usage and increase the performance, all instances
#### of the terminal are sharing a single process. LXTerminal is part of LXDE
#### of the lxterminal are sharing a single process. LXTerminal is part of LXDE
###########################################################################
#### EDITOR

2
xschem_library/xschem_simulator/fa_1.sym
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@ -1,7 +1,7 @@
v {xschem version=2.9.9 file_version=1.2 }
G {}
K {type=primitive
function3="0 1 ^ 2 & 0 1 & |"
function3="0 d 1 d r & r r ^ 2 & |"
function4="0 1 2 ^ ^"
format="@name @@A @@B @@CIN @VGND @VNB @VPB @VPWR @@COUT @@SUM @prefix\\\\fa_1"
template="name=x1 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ "

29
xschem_library/xschem_simulator/simulate_ff.sch
View File

@ -11,15 +11,21 @@ L 4 100 -1470 100 -1390 {}
L 4 200 -1470 200 -1390 {}
L 4 100 -1570 100 -1490 {}
L 4 200 -1570 200 -1490 {}
L 4 1710 -1640 1710 -1360 {}
L 4 1710 -1360 1750 -1360 {}
L 4 1750 -1370 1750 -1360 {}
L 4 1750 -1370 1770 -1360 {}
L 4 1750 -1350 1770 -1360 {}
L 4 1750 -1360 1750 -1350 {}
L 4 1710 -1600 1750 -1600 {}
L 4 1750 -1610 1750 -1600 {}
L 4 1750 -1610 1770 -1600 {}
L 4 1750 -1590 1770 -1600 {}
L 4 1750 -1600 1750 -1590 {}
B 12 3920 -2840 4640 -1540 {}
P 5 9 1800 -300 1800 -220 1790 -230 1810 -180 1830 -230 1820 -220 1820 -300 1810 -290 1800 -300 {fill=true}
T {7 Segment Display driver
and base-10 counter} 1540 -3130 0 0 2.5 2.5 {}
T {This example shows Xschem (very simple) simulation abilities
Ctrl-Click to start simulation.
Xschem will be only partially responsive during simulation.
Will run for 100 iterations.
If you need to stop:
Simulation -> Forced stop tcl scripts} 1730 -750 0 0 1.5 1.5 {}
T {Cyan: Uninitialized or unknown (X)} 3210 -1190 0 0 1.5 1.5 {layer=1}
T {Signal colors:} 3130 -1290 0 0 1.5 1.5 {}
T {Blue: Logic level low (0)} 3210 -1090 0 0 1.5 1.5 {layer=12}
@ -60,6 +66,17 @@ T {Segment 4} 1190 -960 0 0 1 1 { layer=4}
T {Segment 5} 1190 -560 0 0 1 1 { layer=4}
T {Segment 6} 1190 -240 0 0 1 1 { layer=4}
T {Truth Table} 10 -1730 0 0 1.5 1.5 {layer=4}
T {This example shows Xschem (very simple) logic simulation abilities
Ctrl-Click to start simulation.
Xschem will be only partially responsive during simulation.
Will run for 100 iterations.
If you need to stop:
Simulation -> Forced stop tcl scripts} 1720 -810 0 0 1.3 1.3 {}
T {select this net and:
- press '0' to set to logic '0' value
- press '1' to set to logic '1' value
- press '2' to set to logic 'X' value
- press '3' to set to toggle 1->0, 0->1, X->X} 1680 -1880 0 0 0.7 0.7 {}
N 2340 -2250 2340 -2170 { lab=#net1}
N 2220 -2250 2340 -2250 { lab=#net1}
N 2220 -2270 2220 -2250 { lab=#net1}