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Added updates to PROG END pointer at $AF to better support save commands

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badvision 2016-11-19 22:04:39 -06:00
parent fe062e2d15
commit 0b696a2379
1 changed files with 5 additions and 3 deletions
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8
src/main/java/jace/applesoft/ApplesoftProgram.java
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@ -40,7 +40,8 @@ import java.util.logging.Logger;
public class ApplesoftProgram { public class ApplesoftProgram {
List<Line> lines = new ArrayList<>(); List<Line> lines = new ArrayList<>();
public static final int startingAddressPointer = 0x067; public static final int START_OF_PROG_POINTER = 0x067;
public static final int END_OF_PROG_POINTER = 0x0AF;
public static final int VARIABLE_TABLE = 0x069; public static final int VARIABLE_TABLE = 0x069;
public static final int ARRAY_TABLE = 0x06b; public static final int ARRAY_TABLE = 0x06b;
public static final int VARIABLE_TABLE_END = 0x06d; public static final int VARIABLE_TABLE_END = 0x06d;
@ -70,7 +71,7 @@ public class ApplesoftProgram {
} }
public static ApplesoftProgram fromMemory(RAM memory) { public static ApplesoftProgram fromMemory(RAM memory) {
int startAddress = memory.readWordRaw(startingAddressPointer); int startAddress = memory.readWordRaw(START_OF_PROG_POINTER);
int nextCheck = memory.readWordRaw(startAddress); int nextCheck = memory.readWordRaw(startAddress);
int pos = startAddress; int pos = startAddress;
List<Byte> bytes = new ArrayList<>(); List<Byte> bytes = new ArrayList<>();
@ -142,7 +143,7 @@ public class ApplesoftProgram {
public void run() { public void run() {
RAM memory = Emulator.computer.memory; RAM memory = Emulator.computer.memory;
Emulator.computer.pause(); Emulator.computer.pause();
int pos = memory.readWordRaw(startingAddressPointer); int pos = memory.readWordRaw(START_OF_PROG_POINTER);
for (Line line : lines) { for (Line line : lines) {
int nextPos = pos + line.getLength() + 1; int nextPos = pos + line.getLength() + 1;
memory.writeWord(pos, nextPos, false, true); memory.writeWord(pos, nextPos, false, true);
@ -180,5 +181,6 @@ public class ApplesoftProgram {
memory.writeWord(ARRAY_TABLE, programEnd, false, true); memory.writeWord(ARRAY_TABLE, programEnd, false, true);
memory.writeWord(VARIABLE_TABLE, programEnd, false, true); memory.writeWord(VARIABLE_TABLE, programEnd, false, true);
memory.writeWord(VARIABLE_TABLE_END, programEnd, false, true); memory.writeWord(VARIABLE_TABLE_END, programEnd, false, true);
memory.writeWord(END_OF_PROG_POINTER, programEnd, false, true);
} }
} }