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remove last of Address and AddressDiff

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This commit is contained in:
Sam M W 2022-10-18 10:09:03 +01:00
parent 3de8f9158d
commit 8c6591f6a4
3 changed files with 8 additions and 16 deletions
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1
src/lib.rs
View File

@ -35,7 +35,6 @@ extern crate num;
#[macro_use]
extern crate bitflags;
pub mod address;
pub mod cpu;
pub mod instruction;
pub mod memory;

14
src/memory.rs
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@ -25,8 +25,6 @@
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
use crate::address::Address;
// JAM: We can probably come up with a better way to represent address ranges.
// Address range type?
//
@ -39,12 +37,12 @@ use crate::address::Address;
const ADDR_LO_BARE: u16 = 0x0000;
const ADDR_HI_BARE: u16 = 0xFFFF;
pub const MEMORY_ADDRESS_LO: Address = Address(ADDR_LO_BARE);
pub const MEMORY_ADDRESS_HI: Address = Address(ADDR_HI_BARE);
pub const STACK_ADDRESS_LO: Address = Address(0x0100);
pub const STACK_ADDRESS_HI: Address = Address(0x01FF);
pub const IRQ_INTERRUPT_VECTOR_LO: Address = Address(0xFFFE);
pub const IRQ_INTERRUPT_VECTOR_HI: Address = Address(0xFFFF);
pub const MEMORY_ADDRESS_LO: u16 = ADDR_LO_BARE;
pub const MEMORY_ADDRESS_HI: u16 = ADDR_HI_BARE;
pub const STACK_ADDRESS_LO: u16 = 0x0100;
pub const STACK_ADDRESS_HI: u16 = 0x01FF;
pub const IRQ_INTERRUPT_VECTOR_LO: u16 = 0xFFFE;
pub const IRQ_INTERRUPT_VECTOR_HI: u16 = 0xFFFF;
const MEMORY_SIZE: usize = (ADDR_HI_BARE - ADDR_LO_BARE) as usize + 1usize;

9
src/registers.rs
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@ -25,8 +25,7 @@
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
use crate::address::{Address, AddressDiff};
use crate::memory::{STACK_ADDRESS_HI, STACK_ADDRESS_LO};
// Useful for constructing Status instances
#[derive(Copy, Clone)]
@ -147,10 +146,6 @@ impl Status {
pub struct StackPointer(pub u8);
impl StackPointer {
pub fn to_address(self) -> Address {
STACK_ADDRESS_LO + AddressDiff(i32::from(self.0))
}
pub fn to_u16(self) -> u16 {
let StackPointer(val) = self;
u16::from_le_bytes([val, 0x01])
@ -188,7 +183,7 @@ impl Registers {
accumulator: 0,
index_x: 0,
index_y: 0,
stack_pointer: StackPointer(STACK_ADDRESS_HI.get_offset()),
stack_pointer: StackPointer(0),
program_counter: 0,
status: Status::default(),
}