85 lines
2.8 KiB
Rust
85 lines
2.8 KiB
Rust
//! Original boot regressions. ROMs deliberately do not initialize affine matrices.
|
|
use super::*;
|
|
use gba_core::{
|
|
io::{BG0CNT, DISPCNT},
|
|
video::{rgb555_to_rgb888, Framebuffer, WIDTH},
|
|
};
|
|
|
|
fn started(control: u16) -> Machine {
|
|
let mut machine = bios::boot(words(&[
|
|
0xe3a0_1301, // MOV r1,#0x04000000
|
|
0xe59f_0004, // LDR r0,[pc,#4]
|
|
0xe1c1_00b0, // STRH r0,[r1] (DISPCNT only)
|
|
0xeaff_fffe, // B .
|
|
u32::from(control),
|
|
]))
|
|
.unwrap();
|
|
reach(&mut machine, ROM_START + 12, 100);
|
|
machine
|
|
}
|
|
|
|
#[test]
|
|
fn boot_supplies_identity_for_bitmap_coordinates_without_rom_matrix_writes() {
|
|
let mut machine = started(0x0403);
|
|
for (x, y, color) in [
|
|
(0, 0, 0x001f),
|
|
(7, 0, 0x03e0),
|
|
(0, 9, 0x7c00),
|
|
(7, 9, 0x7fff),
|
|
] {
|
|
machine
|
|
.memory_mut()
|
|
.write16(VRAM_START + 2 * (y * 240 + x), color)
|
|
.unwrap();
|
|
}
|
|
let mut frame = Framebuffer::default();
|
|
machine.memory().render_frame(&mut frame).unwrap();
|
|
for (x, y, color) in [
|
|
(0, 0, 0x001f),
|
|
(7, 0, 0x03e0),
|
|
(0, 9, 0x7c00),
|
|
(7, 9, 0x7fff),
|
|
] {
|
|
assert_eq!(frame.pixels()[y * WIDTH + x], rgb555_to_rgb888(color));
|
|
}
|
|
machine.memory_mut().set_scanline_rendering(true);
|
|
for _ in 0..200000 {
|
|
machine.step().unwrap();
|
|
if machine.memory().captured_vblank() == Some(2) {
|
|
break;
|
|
}
|
|
}
|
|
assert_eq!(machine.memory().captured_vblank(), Some(2));
|
|
assert!(machine.memory().present_frame(&mut frame).unwrap());
|
|
assert_eq!(frame.pixels()[9 * WIDTH + 7], 0xffffff);
|
|
}
|
|
|
|
#[test]
|
|
fn boot_supplies_identity_for_both_affine_backgrounds() {
|
|
for bg in [2, 3] {
|
|
let mut machine = started(2 | (0x100 << bg));
|
|
let bus = machine.memory_mut();
|
|
bus.write16(BG0CNT + bg * 2, 0x1000).unwrap(); // map at VRAM+0x8000
|
|
bus.write16(0x05000002, 0x001f).unwrap();
|
|
bus.write16(0x05000004, 0x03e0).unwrap();
|
|
bus.write16(0x05000006, 0x7c00).unwrap();
|
|
bus.write16(VRAM_START, 0x0201).unwrap();
|
|
bus.write16(VRAM_START + 8, 0x0003).unwrap();
|
|
let mut frame = Framebuffer::default();
|
|
bus.render_frame(&mut frame).unwrap();
|
|
assert_eq!(frame.pixels()[0], 0xff0000, "BG{bg}");
|
|
assert_eq!(frame.pixels()[1], 0x00ff00, "BG{bg}");
|
|
assert_eq!(frame.pixels()[WIDTH], 0x0000ff, "BG{bg}");
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn constructing_memory_does_not_apply_firmware_defaults() {
|
|
let mut bus = Memory::new(vec![]).unwrap();
|
|
bus.write16(DISPCNT, 0x0403).unwrap();
|
|
bus.write16(VRAM_START, 0x001f).unwrap();
|
|
bus.write16(VRAM_START + 2, 0x03e0).unwrap();
|
|
let mut frame = Framebuffer::default();
|
|
bus.render_frame(&mut frame).unwrap();
|
|
assert!(frame.pixels().iter().all(|pixel| *pixel == 0xff0000));
|
|
}
|