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changed pin naming and function of new RAM component to match real devices

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This commit is contained in:
helmut.neemann 2017-03-28 12:52:42 +02:00
parent dde20ad9fe
commit 12cea9a026
3 changed files with 57 additions and 55 deletions
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35
src/main/java/de/neemann/digital/core/memory/RAMSinglePortSel.java
View File

@ -26,9 +26,9 @@ public class RAMSinglePortSel extends Node implements Element, RAMInterface {
public static final ElementTypeDescription DESCRIPTION = new ElementTypeDescription(RAMSinglePortSel.class,
input("A"),
input("sel"),
input("C"),
input("W/\u00ACR"))
input("CS"),
input("WE"),
input("OE"))
.addAttribute(Keys.ROTATE)
.addAttribute(Keys.BITS)
.addAttribute(Keys.ADDR_BITS)
@ -41,15 +41,14 @@ public class RAMSinglePortSel extends Node implements Element, RAMInterface {
private final String label;
private final ObservableValue dataOut;
private ObservableValue addrIn;
private ObservableValue selIn;
private ObservableValue clkIn;
private ObservableValue wnrIn;
private ObservableValue csIn;
private ObservableValue weIn;
private ObservableValue oeIn;
private ObservableValue dataIn;
private boolean lastClk = false;
private boolean sel;
private boolean cs;
private int addr;
private boolean write;
private boolean oe;
/**
* Creates a new instance
@ -69,30 +68,28 @@ public class RAMSinglePortSel extends Node implements Element, RAMInterface {
@Override
public void setInputs(ObservableValues inputs) throws NodeException {
addrIn = inputs.get(0).checkBits(addrBits, this).addObserverToValue(this);
selIn = inputs.get(1).checkBits(1, this).addObserverToValue(this);
clkIn = inputs.get(2).checkBits(1, this).addObserverToValue(this);
wnrIn = inputs.get(3).checkBits(1, this).addObserverToValue(this);
csIn = inputs.get(1).checkBits(1, this).addObserverToValue(this);
weIn = inputs.get(2).checkBits(1, this).addObserverToValue(this);
oeIn = inputs.get(3).checkBits(1, this).addObserverToValue(this);
dataIn = inputs.get(4).checkBits(bits, this).addObserverToValue(this);
}
@Override
public void readInputs() throws NodeException {
boolean clk = clkIn.getBool();
sel = selIn.getBool();
if (sel) {
cs = csIn.getBool();
if (cs) {
addr = (int) addrIn.getValue();
write = wnrIn.getBool();
if (write && !lastClk && clk) {
oe = oeIn.getBool();
if (weIn.getBool()) {
long data = dataIn.getValue();
memory.setData(addr, data);
}
}
lastClk = clk;
}
@Override
public void writeOutputs() throws NodeException {
if (sel && !write) {
if (cs && oe) {
dataOut.set(memory.getDataWord(addr), false);
} else {
dataOut.setHighZ(true);

1
src/test/java/de/neemann/digital/integration/FileScanner.java
View File

@ -19,6 +19,7 @@ public class FileScanner {
public int scan(File path) throws Exception {
errors = new ArrayList<>();
int count = scanIntern(path);
System.out.println("tested "+count+" examples");
if (errors.isEmpty())
return count;

76
src/test/resources/dig/test/ram.dig
View File

@ -14,7 +14,7 @@
<int>6</int>
</entry>
</elementAttributes>
<pos x="40" y="380"/>
<pos x="60" y="380"/>
</visualElement>
<visualElement>
<elementName>Out</elementName>
@ -71,20 +71,20 @@
<elementAttributes>
<entry>
<string>Label</string>
<string>C</string>
<string>WE</string>
</entry>
</elementAttributes>
<pos x="120" y="440"/>
<pos x="60" y="440"/>
</visualElement>
<visualElement>
<elementName>In</elementName>
<elementAttributes>
<entry>
<string>Label</string>
<string>W</string>
<string>OE</string>
</entry>
</elementAttributes>
<pos x="40" y="460"/>
<pos x="60" y="480"/>
</visualElement>
<visualElement>
<elementName>RAMSinglePortSel</elementName>
@ -148,35 +148,35 @@
<entry>
<string>Testdata</string>
<testData>
<dataString>sel A C W Din Dout
<dataString>CS A WE OE Din Dout
# write some values
1 0 C 1 7 X
1 10 C 1 8 X
1 20 C 1 9 X
1 30 C 1 10 X
1 40 C 1 11 X
1 50 C 1 12 X
1 60 C 1 13 X
1 0 C 0 7 X
1 10 C 0 8 X
1 20 C 0 9 X
1 30 C 0 10 X
1 40 C 0 11 X
1 50 C 0 12 X
1 60 C 0 13 X
# read some values
1 0 0 0 Z 7
1 10 0 0 Z 8
1 20 0 0 Z 9
1 30 0 0 Z 10
1 40 0 0 Z 11
1 50 0 0 Z 12
1 60 0 0 Z 13
1 0 0 1 Z 7
1 10 0 1 Z 8
1 20 0 1 Z 9
1 30 0 1 Z 10
1 40 0 1 Z 11
1 50 0 1 Z 12
1 60 0 1 Z 13
# read with sel=0 does not work
# read with CS=0 does not work
0 50 0 0 Z Z
0 60 0 0 Z Z
# write with sel=0 does not work
0 1 C 1 7 X
0 2 C 1 7 X
1 1 0 0 Z 0
1 2 0 0 Z 0
# write with CS=0 does not work
0 1 C 0 7 X
0 2 C 0 7 X
1 1 0 1 Z 0
1 2 0 1 Z 0
</dataString>
</testData>
</entry>
@ -202,10 +202,10 @@
<elementAttributes>
<entry>
<string>Label</string>
<string>sel</string>
<string>CS</string>
</entry>
</elementAttributes>
<pos x="40" y="620"/>
<pos x="60" y="620"/>
</visualElement>
</visualElements>
<wires>
@ -217,6 +217,10 @@
<p1 x="180" y="640"/>
<p2 x="200" y="640"/>
</wire>
<wire>
<p1 x="60" y="480"/>
<p2 x="260" y="480"/>
</wire>
<wire>
<p1 x="380" y="420"/>
<p2 x="400" y="420"/>
@ -249,10 +253,6 @@
<p1 x="220" y="680"/>
<p2 x="320" y="680"/>
</wire>
<wire>
<p1 x="40" y="460"/>
<p2 x="260" y="460"/>
</wire>
<wire>
<p1 x="260" y="460"/>
<p2 x="320" y="460"/>
@ -262,7 +262,7 @@
<p2 x="220" y="620"/>
</wire>
<wire>
<p1 x="40" y="620"/>
<p1 x="60" y="620"/>
<p2 x="140" y="620"/>
</wire>
<wire>
@ -298,7 +298,7 @@
<p2 x="320" y="820"/>
</wire>
<wire>
<p1 x="120" y="440"/>
<p1 x="60" y="440"/>
<p2 x="280" y="440"/>
</wire>
<wire>
@ -318,7 +318,7 @@
<p2 x="300" y="380"/>
</wire>
<wire>
<p1 x="40" y="380"/>
<p1 x="60" y="380"/>
<p2 x="120" y="380"/>
</wire>
<wire>
@ -355,12 +355,16 @@
</wire>
<wire>
<p1 x="260" y="460"/>
<p2 x="260" y="600"/>
<p2 x="260" y="480"/>
</wire>
<wire>
<p1 x="260" y="600"/>
<p2 x="260" y="740"/>
</wire>
<wire>
<p1 x="260" y="480"/>
<p2 x="260" y="600"/>
</wire>
<wire>
<p1 x="260" y="740"/>
<p2 x="260" y="880"/>