diff options
| -rw-r--r-- | .gitignore | 2 | ||||
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | kernel/main.dats | 36 | ||||
| -rw-r--r-- | main_dats.c | 5 |
4 files changed, 33 insertions, 12 deletions
@@ -2,3 +2,5 @@ build/ .ccls-cache/ .envrc .direnv +.out +_dats.c @@ -22,7 +22,7 @@ CLFAGS_ATS := CFLAGS_ATS += -D_ATS_CCOMP_RUNTIME_NONE_ CFLAGS_ATS += -D_ATS_CCOMP_EXCEPTION_NONE_ -CFLAGS=-ffreestanding -mcmodel=large -mno-red-zone -mno-mmx -mno-sse -mno-sse2 -m64 +CFLAGS=-ffreestanding -mcmodel=large -mno-red-zone -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -m64 .PHONY: all clean run iso diff --git a/kernel/main.dats b/kernel/main.dats index 1eb7813..e7a68f5 100644 --- a/kernel/main.dats +++ b/kernel/main.dats @@ -1,13 +1,37 @@ #include "share/atspre_staload.hats" -typedef test = @{test2 = uint8} +%{^ + #define get_vram(_) ((void *) 0xB8000 + 1988) +%} + +typedef cell = @{ ch = char, attrib = uint8 } + +extern fun get_vram {n: nat} (n : size_t n):<> [l: agz] (@[cell][n] @ l | ptr l) = "mac#" + +extern prfun eat_vram {l: agz} {n: int} (pf: @[cell][n] @ l): void extern castfn uint8_of {n: nat} (i: int n): uint8 n -implement main0 () = -let - val t = @{test2 = uint8_of(4)} : test -in - main0 () +fn string_length {n:nat} (str: string (n)) : size_t (n) = let + fun loop {i:nat | i <= n} .<n-i>. (str: string n, i: size_t i): size_t (n) = + if string_isnot_atend (str, i) then loop (str, succ(i)) else i +in + loop (str, i2sz(0)) +end + +implement main0 () = let + val hello = "Hello world!" + val length = string_length hello + val color_byte = 0x1f + val (pf_vram | vram) = get_vram(length) + fun loop {l : agz} {n,i: nat | i <= n} .<n-i>. (pf: !(@[cell][n] @ l) | n : size_t n, i : int i, p : ptr l, str: string (n)) : void = + if n > i then ( + p->[i] := @{ ch = str[i], attrib = uint8_of color_byte }; + loop(pf | n,i+1,p,str)) + else () + +in + loop(pf_vram | length, 0, vram, hello); + let prval () = eat_vram pf_vram in () end end diff --git a/main_dats.c b/main_dats.c deleted file mode 100644 index c334a63..0000000 --- a/main_dats.c +++ /dev/null @@ -1,5 +0,0 @@ -/* ****** ****** */ -// -#error(PATSOPT_ERROR_(patsopt(kernel/main.dats): trans3-errors)) -// -/* ****** ****** */ |