From 415f75c275c991949ef7c9d2c62d07e8eba761b5 Mon Sep 17 00:00:00 2001 From: Xander Date: Tue, 4 Jul 2023 13:26:09 +0200 Subject: Overloading print + cleanup --- kernel/writer.dats | 95 ------------------------------------------------------ 1 file changed, 95 deletions(-) delete mode 100644 kernel/writer.dats (limited to 'kernel/writer.dats') diff --git a/kernel/writer.dats b/kernel/writer.dats deleted file mode 100644 index 3e75a90..0000000 --- a/kernel/writer.dats +++ /dev/null @@ -1,95 +0,0 @@ -#include "share/atspre_staload.hats" - -staload "kernel/writer.sats" - -%{^ - #define get_buffer() ((void *) 0xB8000) -%} - -extern fun get_buffer():<> buffer = "mac#" -extern prfun eat_buffer (pf: buffer): void - -staload WRITER = { - staload "kernel/writer.sats" - extern fun getref (): [l:addr] vtakeoutptr (writer) - - fun color_value(c : color): uint8 = - case+ c of - | Black() => i2u8 0 - | Blue() => i2u8 1 - | Green() => i2u8 2 - | Cyan() => i2u8 3 - | Red() => i2u8 4 - | Magenta() => i2u8 5 - | Brown() => i2u8 6 - | LightGray() => i2u8 7 - | DarkGray() => i2u8 8 - | LightBlue() => i2u8 9 - | LightGreen() => i2u8 10 - | LightCyan() => i2u8 11 - | LightRed() => i2u8 12 - | Pink() => i2u8 13 - | Yellow() => i2u8 14 - | White() => i2u8 15 - - fun code_value(foreground: color, background:color): uint8 = - (color_value(background) << 4) lor color_value(foreground) - - local - - var _val: writer = @{position = 0, color_code = code_value(White,Black)} : writer - val p_val = addr@(_val) - - in - - implement getref () = let - extern praxi __assert{l:addr} (ptr: ptr (l)): vtakeout0 (writer@l) - prval (pf, fpf) = __assert (p_val) - in - (pf, fpf | p_val) - end - end -} - -fun put_char (c : char, writer: &writer) : void = let - val buf = get_buffer() - val pos = writer.position -in - if (c = '\n') then - let - val new_pos = (pos / BUFFER_WIDTH + 1) * BUFFER_WIDTH - in - if (new_pos < N) then - writer.position := new_pos - else - clear_screen() - end - else ( - buf.1->[writer.position] := @{ ascii_character = c, color_code = writer.color_code}; - - if (pos < N - 1) then - writer.position := succ(pos) - else - clear_screen()); - - let prval() = eat_buffer buf in () end -end - - -implement put_string (str : string) : void = let - val (pf, fpf | p_val) = $WRITER.getref() - implement string_foreach$fwork (c,env) = put_char(c,env) - val _ = string_foreach_env (g1ofg0(str),!p_val) - prval() = fpf(pf) -in end - -implement clear_screen() : void = let - val (pf, fpf | p_val) = $WRITER.getref() - fun loop {n : nat | n < N - 1} .. (i : int n, wr : &writer) : void = - (put_char('\0', wr); if (i < N - 2) then loop(i+1,wr)) -in - !p_val.position := 0; - loop(0,!p_val); - !p_val.position := 0; - let prval() = fpf(pf) in () end -end -- cgit v1.2.3