Changing timing management

sources/CPU/Instructions/Interrupts.cpp

@@ -6,7 +6,7 @@
 
 namespace ComSquare::CPU
 {
-	unsigned CPU::RESB()
+	void CPU::RESB()
 	{
 		this->_registers.p.i = true;
 		this->_registers.p.d = false;
@@ -18,10 +18,9 @@ namespace ComSquare::CPU
 		this->_registers.d = 0x0000;
 		this->_registers.sh = 0x01; // the low bit of the stack pointer is undefined on reset.
 		this->_registers.pc = this->_cartridgeHeader.emulationInterrupts.reset;
-		return 0;
 	}
 
-	unsigned CPU::BRK()
+	void CPU::BRK()
 	{
 		// TODO rework this. The PC should be pushed to the stack.
 		// Info here: http://softpixel.com/~cwright/sianse/docs/65816NFO.HTM at BRK Software Break
@@ -33,18 +32,14 @@ namespace ComSquare::CPU
 		else
 			this->_registers.pc = this->_cartridgeHeader.nativeInterrupts.brk;
 		this->_registers.p.d = false;
-		return !this->_isEmulationMode;
 	}
 
-	unsigned CPU::RTI()
+	void CPU::RTI()
 	{
-		this->_registers.p.flags = this->pop();
-		this->_registers.pc = this->pop16();
+		this->_registers.p.flags = this->_pop();
+		this->_registers.pc = this->_pop16();
 
-		if (!this->_isEmulationMode) {
-			this->_registers.pbr = this->pop16();
-			return 1;
-		}
-		return 0;
+		if (!this->_isEmulationMode)
+			this->_registers.pbr = this->_pop16();
 	}
 }

sources/CPU/Instructions/MathematicalOperations.cpp

@@ -7,7 +7,7 @@
 
 namespace ComSquare::CPU
 {
-	unsigned CPU::ADC(uint24_t valueAddr)
+	void CPU::ADC(uint24_t valueAddr)
 	{
 		unsigned value = this->_bus->read(valueAddr) + this->_registers.p.c;
 		if (this->_registers.p.m)
@@ -25,6 +25,5 @@ namespace ComSquare::CPU
 			this->_registers.a %= 0x100;
 		this->_registers.p.z = this->_registers.a == 0;
 		this->_registers.p.n = this->_registers.a & negativeMask;
-		return this->_extraMemoryCycles + !this->_registers.p.m;
 	}
 }

sources/CPU/Instructions/MemoryInstructions.cpp

@@ -0,0 +1,18 @@
+//
+// Created by anonymus-raccoon on 2/13/20.
+//
+
+#include "../CPU.hpp"
+
+namespace ComSquare::CPU
+{
+	void CPU::STA(uint24_t addr)
+	{
+		if (this->_registers.p.m)
+			this->_bus->write(addr, this->_registers.al);
+		else {
+			this->_bus->write(addr, this->_registers.al);
+			this->_bus->write(addr + 1, this->_registers.ah);
+		}
+	}
+}