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feat: panic on unimplemented I/O in ReleaseSafe/Debug but not ReleaseFast

This commit is contained in:
Rekai Nyangadzayi Musuka 2022-04-21 10:43:08 -03:00
parent 9cce4d9859
commit b167abc58a
3 changed files with 20 additions and 15 deletions
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2
src/Bus.zig
View File

@ -195,4 +195,4 @@ fn alignAddress(comptime T: type, address: u32) u32 {
u8 => address,
else => @compileError("Bus: Invalid read/write type"),
};
}
}

30
src/bus/io.zig
View File

@ -1,4 +1,5 @@
const std = @import("std");
const builtin = @import("builtin");
const Bit = @import("bitfield").Bit;
const Bitfield = @import("bitfield").Bitfield;
@ -6,8 +7,6 @@ const Bus = @import("../Bus.zig");
const DmaController = @import("dma.zig").DmaController;
const Scheduler = @import("../scheduler.zig").Scheduler;
const panic_on_und_io: bool = false;
const log = std.log.scoped(.@"I/O");
pub const Io = struct {
@ -61,7 +60,7 @@ pub fn read(bus: *const Bus, comptime T: type, address: u32) T {
// Interrupts
0x0400_0200 => @as(T, bus.io.irq.raw) << 16 | bus.io.ie.raw,
0x0400_0208 => @boolToInt(bus.io.ime),
else => undRead("Tried to read {} from 0x{X:0>8}", .{ T, address }),
else => undefinedRead("Tried to read {} from 0x{X:0>8}", .{ T, address }),
},
u16 => switch (address) {
// Display
@ -103,7 +102,7 @@ pub fn read(bus: *const Bus, comptime T: type, address: u32) T {
0x0400_0202 => bus.io.irq.raw,
0x0400_0204 => unimplementedRead("Read halfword from WAITCNT", .{}),
0x0400_0208 => @boolToInt(bus.io.ime),
else => undRead("Tried to read {} from 0x{X:0>8}", .{ T, address }),
else => undefinedRead("Tried to read {} from 0x{X:0>8}", .{ T, address }),
},
u8 => return switch (address) {
// Display
@ -127,7 +126,7 @@ pub fn read(bus: *const Bus, comptime T: type, address: u32) T {
// Interrupts
0x0400_0200 => @truncate(T, bus.io.ie.raw),
0x0400_0300 => @enumToInt(bus.io.postflg),
else => undRead("Tried to read byte from 0x{X:0>8}", .{address}),
else => undefinedRead("Tried to read {} from 0x{X:0>8}", .{ T, address }),
},
else => @compileError("I/O: Unsupported read width"),
};
@ -185,7 +184,7 @@ pub fn write(bus: *Bus, comptime T: type, address: u32, value: T) void {
0x0400_0200 => bus.io.setIrqs(value),
0x0400_0204 => log.debug("Wrote 0x{X:0>8} to WAITCNT", .{value}),
0x0400_0208 => bus.io.ime = value & 1 == 1,
else => undWrite("Tried to write {} 0x{X:0>8} to 0x{X:0>8}", .{ T, value, address }),
else => undefinedWrite("Tried to write {} 0x{X:0>8} to 0x{X:0>8}", .{ T, value, address }),
},
u16 => switch (address) {
// Display
@ -317,7 +316,7 @@ pub fn write(bus: *Bus, comptime T: type, address: u32, value: T) void {
0x0400_0204 => log.debug("Wrote 0x{X:0>4} to WAITCNT", .{value}),
0x0400_0208 => bus.io.ime = value & 1 == 1,
0x0400_0206, 0x0400_020A => {}, // Not Used
else => undWrite("Tried to write {} 0x{X:0>4} to 0x{X:0>8}", .{ T, value, address }),
else => undefinedWrite("Tried to write {} 0x{X:0>4} to 0x{X:0>8}", .{ T, value, address }),
},
u8 => switch (address) {
// Display
@ -362,24 +361,29 @@ pub fn write(bus: *Bus, comptime T: type, address: u32, value: T) void {
// Interrupts
0x0400_0208 => bus.io.ime = value & 1 == 1,
0x0400_0301 => bus.io.haltcnt = if (value >> 7 & 1 == 0) .Halt else std.debug.panic("TODO: Implement STOP", .{}),
else => undWrite("Tried to write 0x{X:0>2} to 0x{X:0>8}", .{ value, address }),
else => undefinedWrite("Tried to write {} 0x{X:0>2} to 0x{X:0>8}", .{ T, value, address }),
},
else => @compileError("I/O: Unsupported write width"),
};
}
fn undRead(comptime format: []const u8, args: anytype) u8 {
if (panic_on_und_io) std.debug.panic(format, args) else log.warn(format, args);
fn undefinedRead(comptime format: []const u8, args: anytype) u8 {
log.debug(format, args);
if (builtin.mode == .Debug) std.debug.panic("TODO: Implement I/O Register", .{});
return 0;
}
fn unimplementedRead(comptime format: []const u8, args: anytype) u8 {
log.warn(format, args);
log.debug(format, args);
if (builtin.mode == .Debug) std.debug.panic("TODO: Implement I/O Register", .{});
return 0;
}
fn undWrite(comptime format: []const u8, args: anytype) void {
if (panic_on_und_io) std.debug.panic(format, args) else log.warn(format, args);
fn undefinedWrite(comptime format: []const u8, args: anytype) void {
log.debug(format, args);
if (builtin.mode == .Debug) std.debug.panic("TODO: Implement I/O Register", .{});
}
/// Read / Write

3
src/main.zig
View File

@ -1,4 +1,5 @@
const std = @import("std");
const builtin = @import("builtin");
const SDL = @import("sdl2");
const clap = @import("clap");
const known_folders = @import("known_folders");
@ -26,6 +27,7 @@ const sample_rate = @import("apu.zig").host_sample_rate;
pub const enable_logging: bool = false;
const is_binary: bool = false;
const log = std.log.scoped(.GUI);
pub const log_level = if (builtin.mode != .Debug) .info else std.log.default_level;
const correctTitle = @import("util.zig").correctTitle;
@ -267,5 +269,4 @@ fn initAudio(apu: *Apu) SDL.SDL_AudioDeviceID {
export fn audioCallback(userdata: ?*anyopaque, stream: [*c]u8, len: c_int) void {
const apu = @ptrCast(*Apu, @alignCast(8, userdata));
_ = SDL.SDL_AudioStreamGet(apu.stream, stream, len);
}