diff --git a/devices/pdp11/machine/1170/monitor/debugger/machine.xml b/devices/pdp11/machine/1170/monitor/debugger/machine.xml
index 1048b5e45..690f787ad 100644
--- a/devices/pdp11/machine/1170/monitor/debugger/machine.xml
+++ b/devices/pdp11/machine/1170/monitor/debugger/machine.xml
@@ -4,7 +4,7 @@
PDP-11/70 Boot Monitor with Debugger
-
+
diff --git a/devices/pdp11/machine/1170/monitor/machine.xml b/devices/pdp11/machine/1170/monitor/machine.xml
index 4555932a2..96354a298 100644
--- a/devices/pdp11/machine/1170/monitor/machine.xml
+++ b/devices/pdp11/machine/1170/monitor/machine.xml
@@ -4,7 +4,7 @@
PDP-11/70 Boot Monitor
-
+
diff --git a/devices/pdp11/machine/1170/panel/README.md b/devices/pdp11/machine/1170/panel/README.md
index 279007e60..31432d16f 100644
--- a/devices/pdp11/machine/1170/panel/README.md
+++ b/devices/pdp11/machine/1170/panel/README.md
@@ -1,6 +1,6 @@
---
layout: page
-title: PDP-11/70 with Front Panel
+title: PDP-11/70 with 256Kb and Front Panel
permalink: /devices/pdp11/machine/1170/panel/
machines:
- id: test1170
diff --git a/devices/pdp11/machine/1170/panel/debugger/README.md b/devices/pdp11/machine/1170/panel/debugger/README.md
index 4b89bcfc8..1aec69300 100644
--- a/devices/pdp11/machine/1170/panel/debugger/README.md
+++ b/devices/pdp11/machine/1170/panel/debugger/README.md
@@ -1,6 +1,6 @@
---
layout: page
-title: PDP-11/70 with Front Panel and Debugger
+title: PDP-11/70 with 256Kb, Front Panel, and Debugger
permalink: /devices/pdp11/machine/1170/panel/debugger/
machines:
- id: test1170
diff --git a/devices/pdp11/machine/1170/panel/debugger/machine.xml b/devices/pdp11/machine/1170/panel/debugger/machine.xml
index a26cfcbb9..fe323452f 100644
--- a/devices/pdp11/machine/1170/panel/debugger/machine.xml
+++ b/devices/pdp11/machine/1170/panel/debugger/machine.xml
@@ -1,10 +1,10 @@
- PDP-11/70 with Front Panel and Debugger
+ PDP-11/70 with 256Kb, Front Panel and Debugger
-
+
diff --git a/devices/pdp11/machine/1170/panel/debugger/xxdp/machine.xml b/devices/pdp11/machine/1170/panel/debugger/xxdp/machine.xml
index a26cfcbb9..fe323452f 100644
--- a/devices/pdp11/machine/1170/panel/debugger/xxdp/machine.xml
+++ b/devices/pdp11/machine/1170/panel/debugger/xxdp/machine.xml
@@ -1,10 +1,10 @@
- PDP-11/70 with Front Panel and Debugger
+ PDP-11/70 with 256Kb, Front Panel and Debugger
-
+
diff --git a/devices/pdp11/machine/1170/panel/machine.xml b/devices/pdp11/machine/1170/panel/machine.xml
index a53724d35..3c1d4dead 100644
--- a/devices/pdp11/machine/1170/panel/machine.xml
+++ b/devices/pdp11/machine/1170/panel/machine.xml
@@ -1,10 +1,10 @@
- PDP-11/70 with Front Panel
+ PDP-11/70 with 256Kb and Front Panel
-
+
diff --git a/devices/pdp11/machine/1170/vt100/debugger/machine.xml b/devices/pdp11/machine/1170/vt100/debugger/machine.xml
index 1fa4fe659..25cda89f2 100644
--- a/devices/pdp11/machine/1170/vt100/debugger/machine.xml
+++ b/devices/pdp11/machine/1170/vt100/debugger/machine.xml
@@ -1,10 +1,10 @@
- PDP-11/70 with Front Panel
+ PDP-11/70 with 256Kb, Front Panel, and Debugger
-
+
diff --git a/devices/pdp11/machine/1170/vt100/machine.xml b/devices/pdp11/machine/1170/vt100/machine.xml
index 7c5d4f169..1d9c53769 100644
--- a/devices/pdp11/machine/1170/vt100/machine.xml
+++ b/devices/pdp11/machine/1170/vt100/machine.xml
@@ -1,10 +1,10 @@
- PDP-11/70 with Front Panel
+ PDP-11/70 with 256Kb and Front Panel
-
+
diff --git a/modules/pdp11/lib/cpustate.js b/modules/pdp11/lib/cpustate.js
index a9f7c204c..3410dd4e4 100644
--- a/modules/pdp11/lib/cpustate.js
+++ b/modules/pdp11/lib/cpustate.js
@@ -262,6 +262,19 @@ CPUStatePDP11.prototype.resetMMU = function()
if (this.bus) this.setMemoryAccess();
};
+/**
+ * getMMUState()
+ *
+ * Returns bit 0 set if 22-bit, bit 1 set if 18-bit, or bit 2 set if 16-bit; used by the Panel component.
+ *
+ * @this {CPUStatePDP11}
+ * @return {number}
+ */
+CPUStatePDP11.prototype.getMMUState = function()
+{
+ return this.mmuEnable? ((this.regMMR3 & PDP11.MMR3.MMU_22BIT)? 1 : 2) : 4;
+};
+
/**
* setMemoryAccess()
*
diff --git a/modules/pdp11/lib/device.js b/modules/pdp11/lib/device.js
index 52610df01..13a8553a4 100644
--- a/modules/pdp11/lib/device.js
+++ b/modules/pdp11/lib/device.js
@@ -873,7 +873,8 @@ DevicePDP11.prototype.readSIZE = function(addr)
/*
* TODO: getMemorySize() returns an aggregate total, so if there are multiple discontiguous
* chunks of RAM, this could return the wrong result; another interface, getHighestAddress(),
- * might be required.
+ * might be required. Then again, perhaps multiple discontiguous chunks of RAM are not permitted
+ * in PDP-11 machines.
*/
return addr == PDP11.UNIBUS.LSIZE? ((this.bus.getMemorySize(MemoryPDP11.TYPE.RAM) >> 6) - 1) : 0;
};
diff --git a/modules/pdp11/lib/panel.js b/modules/pdp11/lib/panel.js
index 1b54ab2af..2000b2e39 100644
--- a/modules/pdp11/lib/panel.js
+++ b/modules/pdp11/lib/panel.js
@@ -1007,13 +1007,13 @@ PanelPDP11.prototype.updateDisplay = function(nUpdate)
this.updateAddr(nUpdate > 0 && fRunning && !fWaiting? this.cpu.getPC() : this.regAddr);
this.updateData(this.regDisplay);
+ var bits = this.cpu.getMMUState();
/*
- * Set bit to 1 (22-bit), 2 (18-bit), or 4 (16-bit)
+ * Bit 0 set if 22-bit, bit 1 set if 18-bit, bit 2 set if 16-bit
*/
- var bit = this.cpu.mmuEnable? ((this.cpu.regMMR3 & PDP11.MMR3.MMU_22BIT)? 1 : 2) : 4;
- this.updateLED(PanelPDP11.LED.B22, bit & 1);
- this.updateLED(PanelPDP11.LED.B18, bit & 2);
- this.updateLED(PanelPDP11.LED.B16, bit & 4);
+ this.updateLED(PanelPDP11.LED.B22, bits & 1);
+ this.updateLED(PanelPDP11.LED.B18, bits & 2);
+ this.updateLED(PanelPDP11.LED.B16, bits & 4);
}
}
};