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feat: implement memory writes

This commit is contained in:
Rekai Nyangadzayi Musuka 2023-01-29 07:02:38 -06:00
parent 82bad92fcf
commit 81ff227ea7
1 changed files with 25 additions and 5 deletions
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30
src/Packet.zig
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@ -95,7 +95,28 @@ pub fn parse(self: *Self, allocator: Allocator, emu: *Emulator) !String {
return .{ .alloc = ret };
},
'M' => @panic("TODO: Memory Write"),
'M' => {
var tokens = std.mem.tokenize(u8, self.contents[1..], ",:");
const addr_str = tokens.next() orelse return error.InvalidPacket;
const length_str = tokens.next() orelse return error.InvalidPacket;
const bytes = tokens.next() orelse return error.InvalidPacket;
const addr = try std.fmt.parseInt(u32, addr_str, 16);
const len = try std.fmt.parseInt(u32, length_str, 16);
{
var i: u32 = 0;
while (i < len) : (i += 1) {
const str = bytes[2 * i ..][0..2];
const value = try std.fmt.parseInt(u8, str, 16);
emu.write(addr + i, value);
}
}
return .{ .static = "OK" };
},
'c' => {
switch (emu.contd()) {
.SingleStep => unreachable,
@ -160,18 +181,17 @@ pub fn parse(self: *Self, allocator: Allocator, emu: *Emulator) !String {
else => return .{ .static = "" },
},
// Optional
// TODO: Figure out the difference between 'M' and 'X'
'D' => {
log.info("Disconnecting...", .{});
return .{ .static = "OK" };
},
'H' => return .{ .static = "" },
'v' => {
if (substr(self.contents[1..], "MustReplyEmpty")) {
return .{ .static = "" };
if (!substr(self.contents[1..], "MustReplyEmpty")) {
log.warn("Unimplemented: {s}", .{self.contents});
}
log.warn("Unimplemented: {s}", .{self.contents});
return .{ .static = "" };
},
'q' => {