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feat: implement ui for register, interrupt

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This commit is contained in:
Rekai Nyangadzayi Musuka
2023-01-07 01:24:51 -06:00
parent 2607b1ecb6
commit 2baa3c83e9
3 changed files with 126 additions and 20 deletions
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8
src/core/bus/io.zig
View File

@@ -346,10 +346,10 @@ const InterruptEnable = extern union {
vblank: Bit(u16, 0),
hblank: Bit(u16, 1),
coincidence: Bit(u16, 2),
tm0_overflow: Bit(u16, 3),
tm1_overflow: Bit(u16, 4),
tm2_overflow: Bit(u16, 5),
tm3_overflow: Bit(u16, 6),
tim0: Bit(u16, 3),
tim1: Bit(u16, 4),
tim2: Bit(u16, 5),
tim3: Bit(u16, 6),
serial: Bit(u16, 7),
dma0: Bit(u16, 8),
dma1: Bit(u16, 9),

4
src/core/cpu.zig
View File

@@ -647,7 +647,7 @@ pub const PSR = extern union {
}
};
const Mode = enum(u5) {
pub const Mode = enum(u5) {
User = 0b10000,
Fiq = 0b10001,
Irq = 0b10010,
@@ -656,7 +656,7 @@ const Mode = enum(u5) {
Undefined = 0b11011,
System = 0b11111,
fn toString(self: Mode) []const u8 {
pub fn toString(self: Mode) []const u8 {
return switch (self) {
.User => "usr",
.Fiq => "fiq",

134
src/platform.zig
View File

@@ -100,7 +100,7 @@ pub const Gui = struct {
zgui.plot.init();
zgui.backend.init(window, ctx, "#version 330 core");
zgui.io.setIniFilename(null);
// zgui.io.setIniFilename(null);
return Self{
.window = window,
@@ -260,25 +260,48 @@ pub const Gui = struct {
}
fn draw(self: *Self, tex_id: GLuint, cpu: *const Arm7tdmi) void {
_ = cpu;
const win_scale = config.config().host.win_scale;
{
const w = @intToFloat(f32, gba_width * win_scale);
const h = @intToFloat(f32, gba_height * win_scale);
_ = zgui.begin("Game Boy Advance Screen", .{ .flags = .{ .no_resize = true, .always_auto_resize = true } });
defer zgui.end();
const img_args = .{
.w = @intToFloat(f32, gba_width * win_scale),
.h = @intToFloat(f32, gba_height * win_scale),
.uv0 = .{ 0.0, 1.0 },
.uv1 = .{ 1.0, 0.0 },
};
zgui.image(@intToPtr(*anyopaque, tex_id), img_args);
zgui.image(@intToPtr(*anyopaque, tex_id), .{ .w = w, .h = h, .uv0 = .{ 0, 1 }, .uv1 = .{ 1, 0 } });
}
{
_ = zgui.begin("Emulator Performance", .{});
_ = zgui.begin("Information", .{});
defer zgui.end();
{
var i: usize = 0;
while (i < 8) : (i += 1) {
zgui.text("R{}: 0x{X:0>8}", .{ i, cpu.r[i] });
zgui.sameLine(.{});
const prefix = if (8 + i < 10) " " else "";
zgui.text("{s}R{}: 0x{X:0>8}", .{ prefix, 8 + i, cpu.r[8 + i] });
}
}
zgui.separator();
widgets.psr("CPSR", cpu.cpsr);
widgets.psr("SPSR", cpu.spsr);
zgui.separator();
widgets.interrupts(" IE", cpu.bus.io.ie); // space is for padding
widgets.interrupts("IRQ", cpu.bus.io.irq);
}
{
_ = zgui.begin("Performance", .{});
defer zgui.end();
const tmp = blk: {
var buf: [0x400]u32 = undefined;
@@ -307,6 +330,8 @@ pub const Gui = struct {
const x_args = .{ .flags = .{ .no_grid_lines = true, .no_tick_labels = true, .no_tick_marks = true } };
if (zgui.plot.beginPlot("Emulation FPS", .{ .w = 0.0, .flags = .{ .no_title = true, .no_frame = true } })) {
defer zgui.plot.endPlot();
zgui.plot.setupLegend(.{ .north = true, .east = true }, .{});
zgui.plot.setupAxis(.x1, x_args);
zgui.plot.setupAxis(.y1, y_args);
@@ -315,7 +340,6 @@ pub const Gui = struct {
zgui.plot.setupFinish();
zgui.plot.plotLineValues("FPS", u32, .{ .v = values[0..len] });
zgui.plot.endPlot();
}
const stats: struct { u32, u32, u32 } = blk: {
@@ -336,8 +360,6 @@ pub const Gui = struct {
zgui.text("Average: {:0>3} fps", .{stats[0]});
zgui.text(" Median: {:0>3} fps", .{stats[1]});
zgui.text(" 1% Low: {:0>3} fps", .{stats[2]});
defer zgui.end();
}
{
@@ -527,3 +549,87 @@ fn panic() noreturn {
const str = @as(?[*:0]const u8, SDL.SDL_GetError()) orelse "unknown error";
@panic(std.mem.sliceTo(str, 0));
}
const widgets = struct {
fn interrupts(comptime label: []const u8, int: anytype) void {
const h = 15.0;
const w = 9.0 * 2 + 3.5;
const ww = 9.0 * 3;
{
zgui.text(label ++ ":", .{});
zgui.sameLine(.{});
_ = zgui.selectable("VBL", .{ .w = w, .h = h, .selected = int.vblank.read() });
zgui.sameLine(.{});
_ = zgui.selectable("HBL", .{ .w = w, .h = h, .selected = int.hblank.read() });
zgui.sameLine(.{});
_ = zgui.selectable("VCT", .{ .w = w, .h = h, .selected = int.coincidence.read() });
{
zgui.sameLine(.{});
_ = zgui.selectable("TIM0", .{ .w = ww, .h = h, .selected = int.tim0.read() });
zgui.sameLine(.{});
_ = zgui.selectable("TIM1", .{ .w = ww, .h = h, .selected = int.tim1.read() });
zgui.sameLine(.{});
_ = zgui.selectable("TIM2", .{ .w = ww, .h = h, .selected = int.tim2.read() });
zgui.sameLine(.{});
_ = zgui.selectable("TIM3", .{ .w = ww, .h = h, .selected = int.tim3.read() });
}
zgui.sameLine(.{});
_ = zgui.selectable("SRL", .{ .w = w, .h = h, .selected = int.serial.read() });
{
zgui.sameLine(.{});
_ = zgui.selectable("DMA0", .{ .w = ww, .h = h, .selected = int.dma0.read() });
zgui.sameLine(.{});
_ = zgui.selectable("DMA1", .{ .w = ww, .h = h, .selected = int.dma1.read() });
zgui.sameLine(.{});
_ = zgui.selectable("DMA2", .{ .w = ww, .h = h, .selected = int.dma2.read() });
zgui.sameLine(.{});
_ = zgui.selectable("DMA3", .{ .w = ww, .h = h, .selected = int.dma3.read() });
}
zgui.sameLine(.{});
_ = zgui.selectable("KPD", .{ .w = w, .h = h, .selected = int.keypad.read() });
zgui.sameLine(.{});
_ = zgui.selectable("GPK", .{ .w = w, .h = h, .selected = int.game_pak.read() });
}
}
fn psr(comptime label: []const u8, register: anytype) void {
const Mode = @import("core/cpu.zig").Mode;
const maybe_mode = std.meta.intToEnum(Mode, register.mode.read()) catch null;
const mode = if (maybe_mode) |mode| mode.toString() else "???";
const w = 9.0;
const h = 15.0;
zgui.text(label ++ ": 0x{X:0>8}", .{register.raw});
zgui.sameLine(.{});
_ = zgui.selectable("N", .{ .w = w, .h = h, .selected = register.n.read() });
zgui.sameLine(.{});
_ = zgui.selectable("Z", .{ .w = w, .h = h, .selected = register.z.read() });
zgui.sameLine(.{});
_ = zgui.selectable("C", .{ .w = w, .h = h, .selected = register.c.read() });
zgui.sameLine(.{});
_ = zgui.selectable("V", .{ .w = w, .h = h, .selected = register.v.read() });
zgui.sameLine(.{});
zgui.text("{s}", .{mode});
}
};