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mtgmonkey
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_i686_gnu"
|
||||||
|
version = "0.52.6"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_i686_gnullvm"
|
||||||
|
version = "0.52.6"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_i686_msvc"
|
||||||
|
version = "0.52.6"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_gnu"
|
||||||
|
version = "0.52.6"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_gnullvm"
|
||||||
|
version = "0.52.6"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_msvc"
|
||||||
|
version = "0.52.6"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
|
||||||
33
Cargo.toml
Normal file
33
Cargo.toml
Normal file
@@ -0,0 +1,33 @@
|
|||||||
|
[package]
|
||||||
|
name = "oxidos"
|
||||||
|
version = "0.1.0"
|
||||||
|
edition = "2024"
|
||||||
|
|
||||||
|
[lib]
|
||||||
|
crate-type = ["staticlib"]
|
||||||
|
|
||||||
|
[dependencies]
|
||||||
|
lazy_static = { version = "1.5.0", features = ["spin_no_std"] }
|
||||||
|
spin = { version = "0.10.0", default-features = false, features = ["spin_mutex"] }
|
||||||
|
|
||||||
|
[dev-dependencies]
|
||||||
|
addr2line = "=0.25.0"
|
||||||
|
cfg-if = "=1.0.1"
|
||||||
|
dlmalloc = "=0.2.10"
|
||||||
|
fortanix-sgx-abi = "=0.6.1"
|
||||||
|
getopts = "=0.2.23"
|
||||||
|
hashbrown = "=0.15.4"
|
||||||
|
hermit-abi = "=0.5.2"
|
||||||
|
object = "=0.37.1"
|
||||||
|
r-efi = "=5.3.0"
|
||||||
|
r-efi-alloc = "=2.1.0"
|
||||||
|
rustc-demangle = "=0.1.25"
|
||||||
|
rustc-literal-escaper = "=0.0.5"
|
||||||
|
unwinding = "=0.2.7"
|
||||||
|
wasi = "0.11.0"
|
||||||
|
|
||||||
|
[profile.release]
|
||||||
|
panic="abort"
|
||||||
|
|
||||||
|
[profile.dev]
|
||||||
|
panic="abort"
|
||||||
143
asm/boot.asm
Normal file
143
asm/boot.asm
Normal file
@@ -0,0 +1,143 @@
|
|||||||
|
global start
|
||||||
|
|
||||||
|
extern long_mode_start
|
||||||
|
|
||||||
|
section .text
|
||||||
|
bits 32
|
||||||
|
|
||||||
|
start:
|
||||||
|
mov esp, stack_top ; stack
|
||||||
|
mov edi, ebx ; move multiboot pointer to edi
|
||||||
|
|
||||||
|
; error suite
|
||||||
|
call check_multiboot
|
||||||
|
call check_cpuid
|
||||||
|
call check_long_mode
|
||||||
|
|
||||||
|
; paging
|
||||||
|
call set_up_page_tables
|
||||||
|
call enable_paging
|
||||||
|
|
||||||
|
; 64-bit gdt
|
||||||
|
lgdt [gdt64.pointer]
|
||||||
|
jmp gdt64.code:long_mode_start ; change cs to gdt64 and long jump
|
||||||
|
|
||||||
|
set_up_page_tables:
|
||||||
|
mov eax, p3_table ; map p3_table's address to the first entry in p4_table
|
||||||
|
or eax, 0b11 ; present, writable
|
||||||
|
mov [p4_table], eax ; p4_table's first entry points to p3_table
|
||||||
|
|
||||||
|
mov eax, p2_table ; sim.
|
||||||
|
or eax, 0b11
|
||||||
|
mov [p3_table], eax
|
||||||
|
|
||||||
|
mov ecx, 0 ; counter
|
||||||
|
.map_p2_table:
|
||||||
|
mov eax, 0x200000 ; 2MiB for a huge page
|
||||||
|
mul ecx ; destination is ax register
|
||||||
|
or eax, 0b10000011 ; huge ..... present, writable
|
||||||
|
mov [p2_table + ecx * 8], eax ; map entry
|
||||||
|
|
||||||
|
inc ecx ; scuffed for-loop section
|
||||||
|
cmp ecx, 512
|
||||||
|
jne .map_p2_table
|
||||||
|
|
||||||
|
ret
|
||||||
|
|
||||||
|
enable_paging:
|
||||||
|
mov eax, p4_table
|
||||||
|
mov cr3, eax ; load p4_table to cr3, where it lives
|
||||||
|
|
||||||
|
mov eax, cr4
|
||||||
|
or eax, 1 << 5
|
||||||
|
mov cr4, eax ; set PAE flag in cr4
|
||||||
|
|
||||||
|
mov ecx, 0xC0000080
|
||||||
|
rdmsr
|
||||||
|
or eax, 1 << 8
|
||||||
|
wrmsr ; set long bit in MSR
|
||||||
|
|
||||||
|
mov eax, cr0
|
||||||
|
or eax, 1 << 31
|
||||||
|
mov cr0, eax ; set paging bit in cr0
|
||||||
|
ret
|
||||||
|
|
||||||
|
; # | error
|
||||||
|
; 0 | .no_multiboot
|
||||||
|
; 1 | .no_cpuid
|
||||||
|
; 2 | .no_long_mode
|
||||||
|
error: ; prints RE:R <al>. <al> is used to store error codes
|
||||||
|
mov dword [0xb8000], 0x4f524f45
|
||||||
|
mov dword [0xb8004], 0x4f3a4f52
|
||||||
|
mov dword [0xb8008], 0x4f204f20
|
||||||
|
mov byte [0xb800a], al
|
||||||
|
hlt
|
||||||
|
|
||||||
|
check_multiboot:
|
||||||
|
cmp eax, 0x36d76289 ; eax magic value
|
||||||
|
jne .no_multiboot
|
||||||
|
ret
|
||||||
|
.no_multiboot:
|
||||||
|
mov al, "0"
|
||||||
|
jmp error
|
||||||
|
|
||||||
|
check_cpuid: ; check if cpuid flag is supported
|
||||||
|
pushfd
|
||||||
|
pop eax ; put flags into eax
|
||||||
|
|
||||||
|
mov ecx, eax ; copy to ecx
|
||||||
|
xor eax, 1 << 21 ; flip the ID bit
|
||||||
|
|
||||||
|
push eax
|
||||||
|
popfd ; return eax to flags
|
||||||
|
|
||||||
|
pushfd
|
||||||
|
pop eax ; put flags to eax again
|
||||||
|
|
||||||
|
push ecx
|
||||||
|
popfd ; restore flags to old version
|
||||||
|
|
||||||
|
cmp eax, ecx
|
||||||
|
je .no_cpuid
|
||||||
|
ret
|
||||||
|
.no_cpuid:
|
||||||
|
mov al, "1"
|
||||||
|
jmp error
|
||||||
|
|
||||||
|
check_long_mode: ; checks ensure cpu is new enough to be 64 bit
|
||||||
|
mov eax, 0x80000000
|
||||||
|
cpuid
|
||||||
|
cmp eax, 0x80000001
|
||||||
|
jb .no_long_mode
|
||||||
|
|
||||||
|
mov eax, 0x80000001
|
||||||
|
cpuid
|
||||||
|
test edx, 1 << 29
|
||||||
|
jz .no_long_mode
|
||||||
|
ret
|
||||||
|
.no_long_mode:
|
||||||
|
mov al, "2"
|
||||||
|
jmp error
|
||||||
|
|
||||||
|
section .bss ; GRUB initialises this to 0
|
||||||
|
|
||||||
|
align 4096 ; tables must be aligned
|
||||||
|
p4_table:
|
||||||
|
resb 4096
|
||||||
|
p3_table:
|
||||||
|
resb 4096
|
||||||
|
p2_table:
|
||||||
|
resb 4096
|
||||||
|
|
||||||
|
stack_bottom:
|
||||||
|
resb 4096 * 4 ; 16kB
|
||||||
|
stack_top:
|
||||||
|
|
||||||
|
section .rodata
|
||||||
|
gdt64:
|
||||||
|
dq 0 ; null
|
||||||
|
.code: equ $ - gdt64 ; code offset
|
||||||
|
dq (1 << 43) | (1 << 44) | (1 << 47) | (1 << 53) ; code
|
||||||
|
.pointer:
|
||||||
|
dw $ - gdt64 - 1 ; $ is .pointer here; length of gdt
|
||||||
|
dq gdt64 ; pointer to gdt table
|
||||||
19
asm/long_mode_init.asm
Normal file
19
asm/long_mode_init.asm
Normal file
@@ -0,0 +1,19 @@
|
|||||||
|
global long_mode_start
|
||||||
|
|
||||||
|
section .text
|
||||||
|
bits 64
|
||||||
|
|
||||||
|
long_mode_start:
|
||||||
|
mov ax, 0
|
||||||
|
mov ss, ax
|
||||||
|
mov ds, ax
|
||||||
|
mov es, ax
|
||||||
|
mov fs, ax
|
||||||
|
mov gs, ax
|
||||||
|
|
||||||
|
extern rust_main ; make the jump to Rust!
|
||||||
|
call rust_main
|
||||||
|
|
||||||
|
mov rax, 0x2f592f412f4b2f4f
|
||||||
|
mov qword [0xb8000], rax
|
||||||
|
hlt
|
||||||
15
asm/multiboot_header.asm
Normal file
15
asm/multiboot_header.asm
Normal file
@@ -0,0 +1,15 @@
|
|||||||
|
section .multiboot_header
|
||||||
|
header_start:
|
||||||
|
dd 0xe85250d6 ; magic number multiboot 2
|
||||||
|
dd 0 ; magic number protected mode i386
|
||||||
|
dd header_end - header_start ; header length
|
||||||
|
; checksum
|
||||||
|
dd 0x100000000 - (0xe85250d6 + 0 + (header_end - header_start))
|
||||||
|
|
||||||
|
; multiboot tags
|
||||||
|
|
||||||
|
; end tag
|
||||||
|
dw 0 ; type
|
||||||
|
dw 0 ; flags
|
||||||
|
dd 8 ; size
|
||||||
|
header_end:
|
||||||
108
flake.lock
generated
Normal file
108
flake.lock
generated
Normal file
@@ -0,0 +1,108 @@
|
|||||||
|
{
|
||||||
|
"nodes": {
|
||||||
|
"fenix": {
|
||||||
|
"inputs": {
|
||||||
|
"nixpkgs": [
|
||||||
|
"naersk",
|
||||||
|
"nixpkgs"
|
||||||
|
],
|
||||||
|
"rust-analyzer-src": "rust-analyzer-src"
|
||||||
|
},
|
||||||
|
"locked": {
|
||||||
|
"lastModified": 1752475459,
|
||||||
|
"narHash": "sha256-z6QEu4ZFuHiqdOPbYss4/Q8B0BFhacR8ts6jO/F/aOU=",
|
||||||
|
"owner": "nix-community",
|
||||||
|
"repo": "fenix",
|
||||||
|
"rev": "bf0d6f70f4c9a9cf8845f992105652173f4b617f",
|
||||||
|
"type": "github"
|
||||||
|
},
|
||||||
|
"original": {
|
||||||
|
"owner": "nix-community",
|
||||||
|
"repo": "fenix",
|
||||||
|
"type": "github"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"naersk": {
|
||||||
|
"inputs": {
|
||||||
|
"fenix": "fenix",
|
||||||
|
"nixpkgs": [
|
||||||
|
"nixpkgs"
|
||||||
|
]
|
||||||
|
},
|
||||||
|
"locked": {
|
||||||
|
"lastModified": 1752689277,
|
||||||
|
"narHash": "sha256-uldUBFkZe/E7qbvxa3mH1ItrWZyT6w1dBKJQF/3ZSsc=",
|
||||||
|
"owner": "nix-community",
|
||||||
|
"repo": "naersk",
|
||||||
|
"rev": "0e72363d0938b0208d6c646d10649164c43f4d64",
|
||||||
|
"type": "github"
|
||||||
|
},
|
||||||
|
"original": {
|
||||||
|
"owner": "nix-community",
|
||||||
|
"repo": "naersk",
|
||||||
|
"type": "github"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"nixpkgs": {
|
||||||
|
"locked": {
|
||||||
|
"lastModified": 1753549186,
|
||||||
|
"narHash": "sha256-Znl7rzuxKg/Mdm6AhimcKynM7V3YeNDIcLjBuoBcmNs=",
|
||||||
|
"owner": "NixOS",
|
||||||
|
"repo": "nixpkgs",
|
||||||
|
"rev": "17f6bd177404d6d43017595c5264756764444ab8",
|
||||||
|
"type": "github"
|
||||||
|
},
|
||||||
|
"original": {
|
||||||
|
"id": "nixpkgs",
|
||||||
|
"ref": "nixos-unstable",
|
||||||
|
"type": "indirect"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"root": {
|
||||||
|
"inputs": {
|
||||||
|
"naersk": "naersk",
|
||||||
|
"nixpkgs": "nixpkgs",
|
||||||
|
"rust-overlay": "rust-overlay"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"rust-analyzer-src": {
|
||||||
|
"flake": false,
|
||||||
|
"locked": {
|
||||||
|
"lastModified": 1752428706,
|
||||||
|
"narHash": "sha256-EJcdxw3aXfP8Ex1Nm3s0awyH9egQvB2Gu+QEnJn2Sfg=",
|
||||||
|
"owner": "rust-lang",
|
||||||
|
"repo": "rust-analyzer",
|
||||||
|
"rev": "591e3b7624be97e4443ea7b5542c191311aa141d",
|
||||||
|
"type": "github"
|
||||||
|
},
|
||||||
|
"original": {
|
||||||
|
"owner": "rust-lang",
|
||||||
|
"ref": "nightly",
|
||||||
|
"repo": "rust-analyzer",
|
||||||
|
"type": "github"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"rust-overlay": {
|
||||||
|
"inputs": {
|
||||||
|
"nixpkgs": [
|
||||||
|
"nixpkgs"
|
||||||
|
]
|
||||||
|
},
|
||||||
|
"locked": {
|
||||||
|
"lastModified": 1753671061,
|
||||||
|
"narHash": "sha256-IU4eBWfe9h2QejJYST+EAlhg8a1H6mh9gbcmWgZ2/mQ=",
|
||||||
|
"owner": "oxalica",
|
||||||
|
"repo": "rust-overlay",
|
||||||
|
"rev": "40065d17ee4dbec3ded8ca61236132aede843fab",
|
||||||
|
"type": "github"
|
||||||
|
},
|
||||||
|
"original": {
|
||||||
|
"owner": "oxalica",
|
||||||
|
"repo": "rust-overlay",
|
||||||
|
"type": "github"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"root": "root",
|
||||||
|
"version": 7
|
||||||
|
}
|
||||||
35
flake.nix
Normal file
35
flake.nix
Normal file
@@ -0,0 +1,35 @@
|
|||||||
|
{
|
||||||
|
inputs = {
|
||||||
|
nixpkgs.url = "nixpkgs/nixos-unstable";
|
||||||
|
naersk = {
|
||||||
|
url = "github:nix-community/naersk";
|
||||||
|
inputs.nixpkgs.follows = "nixpkgs";
|
||||||
|
};
|
||||||
|
rust-overlay = {
|
||||||
|
url = "github:oxalica/rust-overlay";
|
||||||
|
inputs.nixpkgs.follows = "nixpkgs";
|
||||||
|
};
|
||||||
|
};
|
||||||
|
outputs = {
|
||||||
|
nixpkgs,
|
||||||
|
naersk,
|
||||||
|
rust-overlay,
|
||||||
|
...
|
||||||
|
}: let
|
||||||
|
system = "x86_64-linux";
|
||||||
|
overlays = [(import rust-overlay)];
|
||||||
|
pkgs = import nixpkgs {
|
||||||
|
inherit system overlays;
|
||||||
|
};
|
||||||
|
in {
|
||||||
|
packages.${system} = {
|
||||||
|
default =
|
||||||
|
pkgs.callPackage ./package.nix {inherit naersk;};
|
||||||
|
};
|
||||||
|
devShells.${system}.default = pkgs.mkShell {
|
||||||
|
packages = [
|
||||||
|
pkgs.rust-bin.nightly.latest.default
|
||||||
|
];
|
||||||
|
};
|
||||||
|
};
|
||||||
|
}
|
||||||
7
link-cfg/grub.cfg
Normal file
7
link-cfg/grub.cfg
Normal file
@@ -0,0 +1,7 @@
|
|||||||
|
set timeout=0
|
||||||
|
set default=0
|
||||||
|
|
||||||
|
menuentry "oxidos_boot" {
|
||||||
|
multiboot2 /boot/kernel.bin
|
||||||
|
boot
|
||||||
|
}
|
||||||
12
link-cfg/linker.ld
Normal file
12
link-cfg/linker.ld
Normal file
@@ -0,0 +1,12 @@
|
|||||||
|
ENTRY(start)
|
||||||
|
SECTIONS {
|
||||||
|
. = 1M;
|
||||||
|
.boot :
|
||||||
|
{
|
||||||
|
KEEP(*(.multiboot_header))
|
||||||
|
}
|
||||||
|
.text :
|
||||||
|
{
|
||||||
|
*(.text)
|
||||||
|
}
|
||||||
|
}
|
||||||
75
package.nix
Normal file
75
package.nix
Normal file
@@ -0,0 +1,75 @@
|
|||||||
|
{
|
||||||
|
callPackage,
|
||||||
|
grub2,
|
||||||
|
naersk,
|
||||||
|
nasm,
|
||||||
|
qemu,
|
||||||
|
rust-bin,
|
||||||
|
xorriso,
|
||||||
|
...
|
||||||
|
}: let
|
||||||
|
nightly = rust-bin.nightly.latest.default.override {
|
||||||
|
extensions = ["rust-src"];
|
||||||
|
};
|
||||||
|
naersk' = callPackage naersk {
|
||||||
|
cargo = nightly;
|
||||||
|
rustc = nightly;
|
||||||
|
};
|
||||||
|
target = builtins.readFile ./x86_64-oxidos.json;
|
||||||
|
in
|
||||||
|
naersk'.buildPackage {
|
||||||
|
name = "oxidos";
|
||||||
|
src = ./.;
|
||||||
|
|
||||||
|
copyBins = false;
|
||||||
|
release = true;
|
||||||
|
|
||||||
|
cargoBuildOptions = x: x ++ ["-Z" "build-std=core,compiler_builtins,alloc" "-Z" "build-std-features=compiler-builtins-mem" "--target=x86_64-oxidos.json"];
|
||||||
|
|
||||||
|
buildInputs = [
|
||||||
|
qemu
|
||||||
|
];
|
||||||
|
nativeBuildInputs = [
|
||||||
|
grub2
|
||||||
|
nasm
|
||||||
|
xorriso
|
||||||
|
];
|
||||||
|
|
||||||
|
preBuild = ''
|
||||||
|
cat << EOF > x86_64-oxidos.json
|
||||||
|
${target}
|
||||||
|
EOF
|
||||||
|
'';
|
||||||
|
postInstall = ''
|
||||||
|
nasm -f elf64 asm/multiboot_header.asm -o multiboot_header.asm.o
|
||||||
|
nasm -f elf64 asm/long_mode_init.asm -o long_mode_init.asm.o
|
||||||
|
nasm -f elf64 asm/boot.asm -o boot.asm.o
|
||||||
|
|
||||||
|
ld -n -o kernel.bin\
|
||||||
|
--gc-sections\
|
||||||
|
-T link-cfg/linker.ld\
|
||||||
|
multiboot_header.asm.o\
|
||||||
|
long_mode_init.asm.o\
|
||||||
|
boot.asm.o\
|
||||||
|
target/x86_64-oxidos/release/liboxidos.a
|
||||||
|
|
||||||
|
mkdir isofiles/boot/grub -p
|
||||||
|
cp kernel.bin isofiles/boot/kernel.bin
|
||||||
|
cp link-cfg/grub.cfg isofiles/boot/grub/grub.cfg
|
||||||
|
|
||||||
|
grub-mkrescue -o os.iso isofiles
|
||||||
|
|
||||||
|
echo "#!/usr/bin/env bash" > oxidos
|
||||||
|
echo "${qemu}/bin/qemu-system-x86_64 -cdrom $(echo $out)/os.iso" >> oxidos
|
||||||
|
chmod +x oxidos
|
||||||
|
|
||||||
|
mkdir $out/bin -p
|
||||||
|
cp oxidos $out/bin/oxidos
|
||||||
|
cp os.iso $out/os.iso
|
||||||
|
'';
|
||||||
|
|
||||||
|
meta = {
|
||||||
|
mainProgram = "oxidos";
|
||||||
|
homepage = "https://mtgmonkey.net";
|
||||||
|
};
|
||||||
|
}
|
||||||
10
src/alloc/mod.rs
Normal file
10
src/alloc/mod.rs
Normal file
@@ -0,0 +1,10 @@
|
|||||||
|
use core::alloc::{GlobalAlloc, Layout};
|
||||||
|
use core::ptr::null_mut;
|
||||||
|
|
||||||
|
pub struct Allocator;
|
||||||
|
unsafe impl GlobalAlloc for Allocator {
|
||||||
|
unsafe fn alloc(&self, _layout: Layout) -> *mut u8 {
|
||||||
|
return null_mut();
|
||||||
|
}
|
||||||
|
unsafe fn dealloc(&self, _ptr: *mut u8, _layout: Layout) {}
|
||||||
|
}
|
||||||
33
src/lib.rs
Normal file
33
src/lib.rs
Normal file
@@ -0,0 +1,33 @@
|
|||||||
|
#![no_std]
|
||||||
|
#![no_main]
|
||||||
|
|
||||||
|
use core::panic::PanicInfo;
|
||||||
|
|
||||||
|
use crate::alloc::Allocator;
|
||||||
|
|
||||||
|
mod alloc;
|
||||||
|
mod vga;
|
||||||
|
|
||||||
|
#[global_allocator]
|
||||||
|
static ALLOCATOR: Allocator = Allocator {};
|
||||||
|
|
||||||
|
#[unsafe(no_mangle)]
|
||||||
|
pub extern "C" fn rust_main(multiboot_information_address: usize) {
|
||||||
|
loop {
|
||||||
|
println!("this");
|
||||||
|
println!("is");
|
||||||
|
println!("a");
|
||||||
|
println!("multi");
|
||||||
|
println!("line");
|
||||||
|
println!("test");
|
||||||
|
println!("that");
|
||||||
|
println!("goes");
|
||||||
|
println!("on");
|
||||||
|
println!("forever");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[panic_handler]
|
||||||
|
fn panic(_: &PanicInfo) -> ! {
|
||||||
|
loop {}
|
||||||
|
}
|
||||||
137
src/vga/mod.rs
Normal file
137
src/vga/mod.rs
Normal file
@@ -0,0 +1,137 @@
|
|||||||
|
use core::fmt;
|
||||||
|
use lazy_static::lazy_static;
|
||||||
|
use spin;
|
||||||
|
|
||||||
|
#[macro_export]
|
||||||
|
macro_rules! println {
|
||||||
|
() => ($crate::print!("\n"));
|
||||||
|
($($arg:tt)*) => ($crate::print!("{}\n", format_args!($($arg)*)));
|
||||||
|
}
|
||||||
|
|
||||||
|
#[macro_export]
|
||||||
|
macro_rules! print {
|
||||||
|
($($arg:tt)*) => ($crate::vga::_print(format_args!($($arg)*)));
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn _print(args: fmt::Arguments) {
|
||||||
|
use core::fmt::Write;
|
||||||
|
WRITER.lock().write_fmt(args).unwrap();
|
||||||
|
}
|
||||||
|
|
||||||
|
lazy_static! {
|
||||||
|
pub static ref WRITER: spin::Mutex<Writer> = spin::Mutex::new(Writer {
|
||||||
|
column_position: 0,
|
||||||
|
color_code: ColorCode::new(Color::Pink, Color::Black),
|
||||||
|
buffer: unsafe { &mut *(0xb8000 as *mut Buffer) },
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
#[allow(dead_code)]
|
||||||
|
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
|
||||||
|
#[repr(u8)]
|
||||||
|
pub enum Color {
|
||||||
|
Black = 0,
|
||||||
|
Blue = 1,
|
||||||
|
Green = 2,
|
||||||
|
Cyan = 3,
|
||||||
|
Red = 4,
|
||||||
|
Magenta = 5,
|
||||||
|
Brown = 6,
|
||||||
|
LightGray = 7,
|
||||||
|
DarkGray = 8,
|
||||||
|
LightBlue = 9,
|
||||||
|
LightGreen = 10,
|
||||||
|
LightCyan = 11,
|
||||||
|
LightRed = 12,
|
||||||
|
Pink = 13,
|
||||||
|
Yellow = 14,
|
||||||
|
White = 15,
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
|
||||||
|
#[repr(transparent)]
|
||||||
|
struct ColorCode(u8);
|
||||||
|
impl ColorCode {
|
||||||
|
fn new(fg: Color, bg: Color) -> ColorCode {
|
||||||
|
ColorCode((bg as u8) << 4 | (fg as u8))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
|
||||||
|
#[repr(C)]
|
||||||
|
struct ScreenChar {
|
||||||
|
ascii_character: u8,
|
||||||
|
color_code: ColorCode,
|
||||||
|
}
|
||||||
|
|
||||||
|
const BUFFER_HEIGHT: usize = 25;
|
||||||
|
const BUFFER_WIDTH: usize = 80;
|
||||||
|
|
||||||
|
#[repr(transparent)]
|
||||||
|
struct Buffer {
|
||||||
|
chars: [[ScreenChar; BUFFER_WIDTH]; BUFFER_HEIGHT],
|
||||||
|
}
|
||||||
|
|
||||||
|
pub struct Writer {
|
||||||
|
column_position: usize,
|
||||||
|
color_code: ColorCode,
|
||||||
|
buffer: &'static mut Buffer,
|
||||||
|
}
|
||||||
|
impl Writer {
|
||||||
|
pub fn write_byte(&mut self, byte: u8) {
|
||||||
|
match byte {
|
||||||
|
b'\n' => self.new_line(),
|
||||||
|
byte => {
|
||||||
|
if self.column_position >= BUFFER_WIDTH {
|
||||||
|
self.new_line();
|
||||||
|
}
|
||||||
|
|
||||||
|
let row = BUFFER_HEIGHT - 1;
|
||||||
|
let col = self.column_position;
|
||||||
|
|
||||||
|
let color_code = self.color_code;
|
||||||
|
self.buffer.chars[row][col] = ScreenChar {
|
||||||
|
ascii_character: byte,
|
||||||
|
color_code,
|
||||||
|
};
|
||||||
|
self.column_position += 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn write_string(&mut self, s: &str) {
|
||||||
|
for byte in s.bytes() {
|
||||||
|
match byte {
|
||||||
|
0x20..=0x7e | b'\n' => self.write_byte(byte),
|
||||||
|
_ => self.write_byte(0xfe),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn new_line(&mut self) {
|
||||||
|
for row in 1..BUFFER_HEIGHT {
|
||||||
|
for col in 0..BUFFER_WIDTH {
|
||||||
|
let character = self.buffer.chars[row][col];
|
||||||
|
self.buffer.chars[row - 1][col] = character;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
self.clear_row(BUFFER_HEIGHT - 1);
|
||||||
|
self.column_position = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
fn clear_row(&mut self, row: usize) {
|
||||||
|
let blank = ScreenChar {
|
||||||
|
ascii_character: b' ',
|
||||||
|
color_code: self.color_code,
|
||||||
|
};
|
||||||
|
for col in 0..BUFFER_WIDTH {
|
||||||
|
self.buffer.chars[row][col] = blank;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
impl fmt::Write for Writer {
|
||||||
|
fn write_str(&mut self, s: &str) -> fmt::Result {
|
||||||
|
self.write_string(s);
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
}
|
||||||
18
x86_64-oxidos.json
Normal file
18
x86_64-oxidos.json
Normal file
@@ -0,0 +1,18 @@
|
|||||||
|
{
|
||||||
|
"llvm-target": "x86_64-unknown-none",
|
||||||
|
"data-layout": "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128",
|
||||||
|
"arch": "x86_64",
|
||||||
|
"target-endian": "little",
|
||||||
|
"target-pointer-width": "64",
|
||||||
|
"target-c-int-width": 32,
|
||||||
|
"os": "none",
|
||||||
|
"executables": true,
|
||||||
|
|
||||||
|
"features": "-mmx,-sse,+soft-float",
|
||||||
|
"rustc-abi": "x86-softfloat",
|
||||||
|
|
||||||
|
"disable-redzone": true,
|
||||||
|
"panic-strategy": "abort",
|
||||||
|
|
||||||
|
"linker-flavor": "gcc"
|
||||||
|
}
|
||||||
Reference in New Issue
Block a user