another batch of instructions

9 files changed, 71 insertions, 1 deletions

diff --git a/instructions/ADC.ts b/instructions/ADC.ts
index 5e00f15..cfb9f73 100644
--- a/instructions/ADC.ts
+++ b/instructions/ADC.ts
@@ -5,7 +5,7 @@ export default function (this: The65c02, mode: string) {
     this.io.address.set(addr);
     this.read()
     const mem = this.io.data.num();
-    const result = this.regA.num() + mem
+    const result = this.regA.num() + mem + +this.carry
     this.flagZCN(result);
     this.regA.set(result & 0xFF);
 }
\ No newline at end of file
diff --git a/instructions/CMP.ts b/instructions/CMP.ts
new file mode 100644
index 0000000..456cf1a
--- /dev/null
+++ b/instructions/CMP.ts
@@ -0,0 +1,9 @@
+import type The65c02 from "../65c02.ts";
+
+export default function (this: The65c02, mode: string) {
+    const location = this.getAddr(mode);
+    this.io.address.set(location);
+    this.read();
+    const thing = this.regA.num() - this.io.data.num();
+    this.flagZCN(thing);
+}
\ No newline at end of file
diff --git a/instructions/CPX.ts b/instructions/CPX.ts
new file mode 100644
index 0000000..15ab9b7
--- /dev/null
+++ b/instructions/CPX.ts
@@ -0,0 +1,9 @@
+import type The65c02 from "../65c02.ts";
+
+export default function (this: The65c02, mode: string) {
+    const location = this.getAddr(mode);
+    this.io.address.set(location);
+    this.read();
+    const thing = this.regX.num() - this.io.data.num();
+    this.flagZCN(thing);
+}
\ No newline at end of file
diff --git a/instructions/CPY.ts b/instructions/CPY.ts
new file mode 100644
index 0000000..70cb166
--- /dev/null
+++ b/instructions/CPY.ts
@@ -0,0 +1,9 @@
+import type The65c02 from "../65c02.ts";
+
+export default function (this: The65c02, mode: string) {
+    const location = this.getAddr(mode);
+    this.io.address.set(location);
+    this.read();
+    const thing = this.regY.num() - this.io.data.num();
+    this.flagZCN(thing);
+}
\ No newline at end of file
diff --git a/instructions/DEC.ts b/instructions/DEC.ts
new file mode 100644
index 0000000..9f14487
--- /dev/null
+++ b/instructions/DEC.ts
@@ -0,0 +1,10 @@
+import type The65c02 from "../65c02.ts";
+
+export default function (this: The65c02, mode: string) {
+    const addr = this.getAddr(mode);
+    this.io.address.set(addr);
+    this.read();
+    const res = this.io.data.num() - 1;
+    this.io.data.set(res & 0xFF);
+    this.flagZN(res & 0xFF)
+}
\ No newline at end of file
diff --git a/instructions/DEX.ts b/instructions/DEX.ts
new file mode 100644
index 0000000..f5452e8
--- /dev/null
+++ b/instructions/DEX.ts
@@ -0,0 +1,8 @@
+import type The65c02 from "../65c02.ts";
+
+export default function (this: The65c02) {
+    const res = this.regX.num() - 1;
+    this.regX.set(res & 0xFF);
+    this.flagZN(res & 0xFF);
+    this.programCounter.increment();
+}
\ No newline at end of file
diff --git a/instructions/DEY.ts b/instructions/DEY.ts
new file mode 100644
index 0000000..4410abc
--- /dev/null
+++ b/instructions/DEY.ts
@@ -0,0 +1,8 @@
+import type The65c02 from "../65c02.ts";
+
+export default function (this: The65c02) {
+    const res = this.regY.num() - 1;
+    this.regY.set(res & 0xFF);
+    this.flagZN(res & 0xFF);
+    this.programCounter.increment();
+}
\ No newline at end of file
diff --git a/instructions/EOR.ts b/instructions/EOR.ts
new file mode 100644
index 0000000..462cc16
--- /dev/null
+++ b/instructions/EOR.ts
@@ -0,0 +1,11 @@
+import type The65c02 from "../65c02.ts";
+
+export default function (this: The65c02, mode: string) {
+    const addr = this.getAddr(mode)
+    this.io.address.set(addr);
+    this.read()
+    const mem = this.io.data.num();
+    const result = this.regA.num() ^ mem
+    this.flagZN(result);
+    this.regA.set(result & 0xFF);
+}
\ No newline at end of file
diff --git a/instructions/JMP.ts b/instructions/JMP.ts
new file mode 100644
index 0000000..c675c90
--- /dev/null
+++ b/instructions/JMP.ts
@@ -0,0 +1,6 @@
+import type The65c02 from "../65c02.ts";
+
+export default function (this: The65c02, mode: string) {
+    const location = this.getAddr(mode, ['relative', 'absolute', 'indirect']);
+    this.programCounter.set(location)
+}
\ No newline at end of file