Get some basic definitions and module structure going. Not sure whether Cargo.lock should be in .gitignore

.gitignore

@@ -1,3 +1,4 @@
+Cargo.lock
 *.a
 *.aux
 *.bc

Cargo.toml

@@ -0,0 +1,40 @@
+# Copyright (C) 2014 The 6502-rs Developers
+# All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. Neither the names of the copyright holders nor the names of any
+#    contributors may be used to endorse or promote products derived from this
+#    software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+
+[package]
+
+name = "6502-rs"
+version = "0.0.1"
+authors = ["The 6502-rs Developers"]
+
+[[bin]]
+name = "6502-rs"
+path = "src/exe/main.rs"
+
+[dependencies.defs6502]
+path="src/defs6502"
+

src/defs6502/Cargo.toml

@@ -0,0 +1,36 @@
+# Copyright (C) 2014 The 6502-rs Developers
+# All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. Neither the names of the copyright holders nor the names of any
+#    contributors may be used to endorse or promote products derived from this
+#    software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+
+[package]
+name = "defs6502"
+version = "0.0.1"
+authors = [ "The 6502-rs Developers" ]
+
+[lib]
+name = "defs6502"
+path = "lib.rs"
+

src/defs6502/lib.rs

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+// Copyright (C) 2014 The 6502-rs Developers
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the names of the copyright holders nor the names of any
+//    contributors may be used to endorse or promote products derived from this
+//    software without specific prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+
+pub use machine::ProcessorStatus;
+pub use machine::Machine;
+pub use machine::StackPointer;
+pub use machine::STACK_POINTER_IN_MEMORY_LO;
+pub use machine::STACK_POINTER_IN_MEMORY_HI;
+pub use machine::MemoryAddr;
+pub use machine::stack_pointer_to_addr;
+pub use machine::Instruction;
+pub use machine::AddressingMode;
+
+mod machine;
+

src/defs6502/machine/mod.rs

@@ -0,0 +1,156 @@
+// Copyright (C) 2014 The 6502-rs Developers
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the names of the copyright holders nor the names of any
+//    contributors may be used to endorse or promote products derived from this
+//    software without specific prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+
+// Abbreviations
+//
+// Registers
+//
+//        A accumulator
+//        X general purpose register
+//        Y general purpose register
+//       SP stack pointer
+// NV-BDIZC processor status flags -- see ProcessorStatus bitflags
+//       PC program counter
+//
+// M stands for `Memory location`
+
+pub bitflags! {
+    flags ProcessorStatus: u8 {
+        static N = 0b10000000, // Negative
+        static V = 0b01000000, // oVerflow
+        static B = 0b00010000, // Brk
+        static D = 0b00001000, // Decimal mode active?
+        static I = 0b00000100, // Irq disabled?
+        static Z = 0b00000010, // Zero
+        static C = 0b00000001, // Carry
+    }
+}
+
+pub struct Machine {
+     A : u8,
+     X : u8,
+     Y : u8,
+    SP : u8,
+     P : ProcessorStatus,
+    PC : u16,
+}
+
+impl Machine {
+    pub fn new() -> Machine {
+        Machine { A: 0, X: 0, Y: 0, SP: 0, P: ProcessorStatus::empty(), PC: 0 }
+    }
+}
+
+pub struct StackPointer(u8);
+
+pub static STACK_POINTER_IN_MEMORY_LO : u16 = 0x0100;
+pub static STACK_POINTER_IN_MEMORY_HI : u16 = 0x01FF;
+
+pub struct MemoryAddr(u16);
+
+pub fn stack_pointer_to_addr(StackPointer(x) : StackPointer) -> MemoryAddr
+{
+	MemoryAddr(x as u16 + STACK_POINTER_IN_MEMORY_HI)
+}
+
+#[deriving(Show)]
+pub enum Instruction
+      //                                out       in
+{ ADC // ADd with Carry................ A,Z,C,N = A + M + C
+, AND // logical AND................... A,Z,N   = A && M
+, ASL // Arithmetic Shift Left......... A,Z,C,N = M << 1
+, BCC // Branch if Carry Clear......... _ <-
+, BCS // Branch if Carry Set........... 
+, BEQ // Branch if Equal...............
+, BIT // BIT test...................... a & 
+, BMI // Branch if Minus...............
+, BNE // Branch if Not Equal...........
+, BPL // Branch if Positive............
+, BRK // BReaK.........................
+, BVC // Branch if oVerflow Clear......
+, BVS // Branch if oVerflow Set........
+, CLC // CLear Carry flag..............
+, CLD // Clear Decimal Mode............
+, CLI // Clear Interrupt Disable.......
+, CLV // Clear oVerflow flag...........
+, CMP // Compare.......................
+, CPX // Compare X register............
+, CPY // Compare Y register............
+, DEC // DECrement memory..............
+, DEX // DEcrement X register..........
+, DEY // DEcrement Y register..........
+, EOR // Exclusive OR..................
+, INC // INCrement memory..............
+, INX // INcrement X register..........
+, INY // INcrement Y register..........
+, JMP // JuMP..........................
+, JSR // Jump to SubRoutine............
+, LDA // LoaD Accumulator..............
+, LDX // LoaD X register...............
+, LDY // LoaD Y register...............
+, LSR // Logical Shift Right...........
+, NOP // No OPeration..................
+, ORA // inclusive OR..................
+, PHA // PusH Accumulator..............
+, PHP // PusH Processor status.........
+, PLA // PuLl Accumulator..............
+, PLP // PuLl Processor status.........
+, ROL // ROtate Left...................
+, ROR // ROtate Right..................
+, RTI // ReTurn from Interrupt.........
+, RTS // ReTurn from Subroutine........
+, SBC // SuBtract with Carry...........
+, SEC // SEt Carry flag................
+, SED // SEt Decimal flag..............
+, SEI // SEt Interrupt disable.........
+, STA // STore Accumulator.............
+, STX // STore X register..............
+, STY // STore Y register..............
+, TAX // Transfer Accumulator to X.....
+, TAY // Transfer Accumulator to Y.....
+, TSX // Transfer Stack pointer to X...
+, TXA // Transfer X to Accumulator.....
+, TXS // Transfer X to Stack pointer...
+, TYA // Transfer Y to Accumulator.....
+}
+
+pub enum AddressingMode {
+    Immediate,
+    Absolute,
+    ZeroPage,
+    Implied,
+    IndirectAbsolute,
+    AbsoluteIndexedX,
+    AbsoluteIndexedY,
+    ZeroPageIndexedX,
+    ZeroageIndexedY,
+    IndexedIndirect,
+    IndirectIndexed,
+    Relative,
+    Accumulator,
+}
+

src/exe/main.rs

@@ -0,0 +1,37 @@
+// Copyright (C) 2014 The 6502-rs Developers
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the names of the copyright holders nor the names of any
+//    contributors may be used to endorse or promote products derived from this
+//    software without specific prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+
+extern crate defs6502;
+
+use defs6502::Machine;
+
+fn main() {
+    let _q = Machine::new();
+
+    println!("Hello, 6502?");
+}
+