Rekai Musuka
e32d6534c6
some basic ROMs already boot (ARM946E-S only), working on Armwrestler and Rockwrestler next so I can ensure CPU compatability for but ARMv5TE and ARMv4T
78 lines
2.5 KiB
Zig
78 lines
2.5 KiB
Zig
const std = @import("std");
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const clap = @import("zig-clap");
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const nds9 = @import("core/nds9.zig");
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const nds7 = @import("core/nds7.zig");
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const emu = @import("core/emu.zig");
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const IBus = @import("arm32").Bus;
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const IScheduler = @import("arm32").Scheduler;
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const Ui = @import("platform.zig").Ui;
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const SharedIo = @import("core/io.zig").Io;
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const Allocator = std.mem.Allocator;
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const ClapResult = clap.Result(clap.Help, &cli_params, clap.parsers.default);
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const cli_params = clap.parseParamsComptime(
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\\-h, --help Display this help and exit.
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\\<str> Path to the NDS ROM
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\\
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);
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pub fn main() !void {
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const log = std.log.scoped(.main);
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var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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defer std.debug.assert(gpa.deinit() == .ok);
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const allocator = gpa.allocator();
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const result = try clap.parse(clap.Help, &cli_params, clap.parsers.default, .{});
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defer result.deinit();
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const rom_path = try handlePositional(result);
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log.debug("loading rom from: {s}", .{rom_path});
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const rom_file = try std.fs.cwd().openFile(rom_path, .{});
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defer rom_file.close();
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// FIXME: Perf win to allocating on the stack instead?
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const shared_io = try allocator.create(SharedIo);
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defer allocator.destroy(shared_io);
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shared_io.* = .{};
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const nds9_group: nds9.Group = blk: {
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var scheduler = try nds9.Scheduler.init(allocator);
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var bus = try nds9.Bus.init(allocator, &scheduler, shared_io);
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var arm946es = nds9.Arm946es.init(IScheduler.init(&scheduler), IBus.init(&bus));
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break :blk .{ .cpu = &arm946es, .bus = &bus, .scheduler = &scheduler };
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};
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defer nds9_group.deinit(allocator);
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const nds7_group: nds7.Group = blk: {
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var scheduler = try nds7.Scheduler.init(allocator);
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var bus = try nds7.Bus.init(allocator, &scheduler, shared_io);
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var arm7tdmi = nds7.Arm7tdmi.init(IScheduler.init(&scheduler), IBus.init(&bus));
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break :blk .{ .cpu = &arm7tdmi, .bus = &bus, .scheduler = &scheduler };
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};
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defer nds7_group.deinit(allocator);
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const rom_title = try emu.load(allocator, nds7_group, nds9_group, rom_file);
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var ui = try Ui.init(allocator);
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defer ui.deinit(allocator);
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ui.setTitle(rom_title);
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try ui.run(nds7_group, nds9_group);
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}
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fn handlePositional(result: ClapResult) ![]const u8 {
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return switch (result.positionals.len) {
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0 => error.too_few_positional_arguments,
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1 => result.positionals[0],
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else => return error.too_many_positional_arguments,
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};
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}
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