init

.gitignore

@@ -0,0 +1 @@
+/target

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "zing"
+version = "0.1.0"

Cargo.toml

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+[package]
+name = "zing"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

src/main.rs

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+#![allow(dead_code)]
+
+// see §11 (page 61) of the spec
+#[repr(usize)]
+enum HeaderFields {
+    Version = 0x0,
+    Flags1,
+    HighMemoryStartAddr = 0x4,
+    PCInitValAddr = 0x6,
+    DictionaryAddr = 0x8,
+    ObjectTableAddr = 0xA,
+    GlobalsTableAddr = 0xC,
+    StaticMemoryStartAddr = 0xE,
+    Flags2 = 0x10,
+    AbbreviationsTableaddr = 0x18,
+    FileLength = 0x1A, // divided by a constant; see §11.1.6
+    FileChecksum = 0x1C,
+    InterpreterNumber = 0x1E,
+    InterpreterVersion = 0x1F,
+    ScreenHeightChars = 0x20,
+    ScreenWidthChars = 0x21,
+    ScreenHeightUnits = 0x22,
+    ScreenWidthUnits = 0x24,
+    FontWidthUnits = 0x26,
+    FontHeightUnits = 0x27,
+    BackgroundColor = 0x2C,
+    ForegroundColor = 0x2D,
+    TerminatingCharsTableAddr = 0x2E,
+    RevisionNumber = 0x32,
+    AlphabetTableAddr = 0x34,
+    HeaderExtensionTableAddr = 0x36,
+}
+
+// note: this is a table of words, unlike the regular header which is all bytes
+#[repr(usize)]
+enum ExtensionTableFields {
+    TableLength = 0,
+    MouseXAfterClick = 1,
+    MouseYAfterClick = 2,
+    UnicodeTranslationTableAddr = 3,
+}
+
+struct ZMachine5 {
+    memory: Box<[u8]>,
+}
+
+fn main() {
+    println!("Hello, world!");
+}