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-rw-r--r--src/globals.rs58
1 files changed, 58 insertions, 0 deletions
diff --git a/src/globals.rs b/src/globals.rs
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+use std::cell::RefCell;
+use std::rc::Rc;
+
+use rustv::isa;
+use rustv::memory::{Memory, MemoryInterface, Mmu};
+
+use memory_tracker::MemoryTracker;
+
+pub const HOME_STATUS: isa::Address = 0xFFF00;
+
+/// Update the various global data structures as requested by other
+/// subsystems.
+// Intended to be passed around as &'a GlobalsUpdater
+pub struct GlobalsUpdater<'a> {
+ // TODO: weak reference?
+ memory: Rc<RefCell<MemoryTracker>>,
+ mmu1: Box<Mmu + 'a>,
+ mmu2: Box<Mmu + 'a>,
+}
+
+impl<'a> GlobalsUpdater<'a> {
+ pub fn new(memory: Rc<RefCell<MemoryTracker>>,
+ mmu1: Box<Mmu + 'a>, mmu2: Box<Mmu + 'a>) -> GlobalsUpdater<'a> {
+ GlobalsUpdater {
+ memory: memory,
+ mmu1: mmu1,
+ mmu2: mmu2,
+ }
+ }
+
+ pub fn init_memory(&self) {
+ // Initialize taunt array to all -1
+ for offset in 0..(228 / 4) {
+ let address1 = self.mmu1.translate(HOME_STATUS + 28 + offset);
+ let address2 = self.mmu2.translate(HOME_STATUS + 28 + offset);
+ let _ = self.memory.borrow_mut().write_word(
+ address1,
+ (-1 as i32) as isa::Word);
+ let _ = self.memory.borrow_mut().write_word(
+ address2,
+ (-1 as i32) as isa::Word);
+ }
+ }
+
+ // TODO: how to distinguish which player?
+ pub fn fetch_tag(&self, tag: isa::Address, index: u32) {
+ // TODO: assert index is 0 or 1
+ let address = HOME_STATUS;
+ }
+
+ pub fn finish_tag(&self, tag: isa::Address, index: u32) {
+
+ }
+
+ pub fn update_score(&self, player1: i64, player2: i64) {
+
+ }
+}