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type inference for variables

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This commit is contained in:
Antoni Piasecki
2026-05-13 14:01:44 +02:00
parent 5f2082ef57
commit 027245684d
37 changed files with 304 additions and 302 deletions
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52
examples/chip8.zr
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@@ -22,7 +22,7 @@ struct CHIP8
keyboard_map: Array
func chip8_create[] : CHIP8
let c: CHIP8 = new CHIP8
let c = new CHIP8
c->memory = mem.alloc(4096)
mem.zero(c->memory, 4096)
c->display = mem.alloc(64*32)
@@ -33,7 +33,7 @@ func chip8_create[] : CHIP8
c->stack = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
c->keyboard = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
let fonts: Array = [0xf0, 0x90, 0x90, 0x90, 0xf0, 0x20, 0x60, 0x20, 0x20, 0x70, 0xf0, 0x10, 0xf0, 0x80, 0xf0, 0xf0, 0x10, 0xf0, 0x10, 0xf0, 0x90, 0x90, 0xf0, 0x10, 0x10, 0xf0, 0x80, 0xf0, 0x10, 0xf0, 0xf0, 0x80, 0xf0, 0x90, 0xf0, 0xf0, 0x10, 0x20, 0x40, 0x40, 0xf0, 0x90, 0xf0, 0x90, 0xf0, 0xf0, 0x90, 0xf0, 0x10, 0xf0, 0xf0, 0x90, 0xf0, 0x90, 0x90, 0xe0, 0x90, 0xe0, 0x90, 0xe0, 0xf0, 0x80, 0x80, 0x80, 0xf0, 0xe0, 0x90, 0x90, 0x90, 0xe0, 0xf0, 0x80, 0xf0, 0x80, 0xf0, 0xf0, 0x80, 0xf0, 0x80, 0x80]
let fonts = [0xf0, 0x90, 0x90, 0x90, 0xf0, 0x20, 0x60, 0x20, 0x20, 0x70, 0xf0, 0x10, 0xf0, 0x80, 0xf0, 0xf0, 0x10, 0xf0, 0x10, 0xf0, 0x90, 0x90, 0xf0, 0x10, 0x10, 0xf0, 0x80, 0xf0, 0x10, 0xf0, 0xf0, 0x80, 0xf0, 0x90, 0xf0, 0xf0, 0x10, 0x20, 0x40, 0x40, 0xf0, 0x90, 0xf0, 0x90, 0xf0, 0xf0, 0x90, 0xf0, 0x10, 0xf0, 0xf0, 0x90, 0xf0, 0x90, 0x90, 0xe0, 0x90, 0xe0, 0x90, 0xe0, 0xf0, 0x80, 0x80, 0x80, 0xf0, 0xe0, 0x90, 0x90, 0x90, 0xe0, 0xf0, 0x80, 0xf0, 0x80, 0xf0, 0xf0, 0x80, 0xf0, 0x80, 0x80]
for i in 0..80
c->memory[i] = array.nth(fonts, i)
mem.free(fonts)
@@ -58,18 +58,18 @@ func chip8_disassemble[c: CHIP8, ins_count: i64] : void
for i in 0..ins_count
io.printf("0x%x: ", c->pc)
let high: i64 = c->memory[c->pc] as i64
let low: i64 = c->memory[c->pc + 1] as i64
let high = c->memory[c->pc] as i64
let low = c->memory[c->pc + 1] as i64
c->pc = c->pc + 2
let ins: i64 = (high << 8) | low
let nnn: i64 = ins & 0x0fff
let kk: i64 = ins & 0x00ff
let n: i64 = ins & 0x000f
let x: i64 = (ins >> 8) & 0x0f
let y: i64 = (ins >> 4) & 0x0f
let ins = (high << 8) | low
let nnn = ins & 0x0fff
let kk = ins & 0x00ff
let n = ins & 0x000f
let x = (ins >> 8) & 0x0f
let y = (ins >> 4) & 0x0f
let op: i64 = (ins >> 12) & 0x0f
let op = (ins >> 12) & 0x0f
if op == 0x0
if nnn == 0x0e0
io.println("CLS")
@@ -154,18 +154,18 @@ func chip8_disassemble[c: CHIP8, ins_count: i64] : void
io.printf("??? (%x)\n", ins)
func chip8_step[c: CHIP8] : void
let high: i64 = c->memory[c->pc] as i64
let low: i64 = c->memory[c->pc + 1] as i64
let high = c->memory[c->pc] as i64
let low = c->memory[c->pc + 1] as i64
c->pc = c->pc + 2
let ins: i64 = (high << 8) | low
let nnn: i64 = ins & 0x0fff
let kk: i64 = ins & 0x00ff
let n: i64 = ins & 0x000f
let x: i64 = (ins >> 8) & 0x0f
let y: i64 = (ins >> 4) & 0x0f
let ins = (high << 8) | low
let nnn = ins & 0x0fff
let kk = ins & 0x00ff
let n = ins & 0x000f
let x = (ins >> 8) & 0x0f
let y = (ins >> 4) & 0x0f
let op: i64 = (ins >> 12) & 0x0f
let op = (ins >> 12) & 0x0f
if op == 0x0
if nnn == 0x0e0
mem.zero(c->display, 64 * 32)
@@ -232,7 +232,7 @@ func chip8_step[c: CHIP8] : void
if (c->memory[c->I + row] & (0x80 >> col)) != 0
let pixel_x: u8 = (c->reg[x] + col) % 64
let pixel_y: u8 = (c->reg[y] + row) % 32
let offset: i64 = pixel_x as i64 + (pixel_y * 64)
let offset = pixel_x as i64 + (pixel_y * 64)
if c->display[offset] == 1
c->reg[0xf] = 1
@@ -248,7 +248,7 @@ func chip8_step[c: CHIP8] : void
if kk == 0x07
c->reg[x] = c->delay_timer
else if kk == 0x0A
let key_pressed: bool = false
let key_pressed = false
while !key_pressed && !WindowShouldClose()
for i in 0..16
if IsKeyDown(array.nth(c->keyboard_map, i))
@@ -274,11 +274,11 @@ func chip8_step[c: CHIP8] : void
c->reg[i] = c->memory[c->I + i]
func main[argc: i64, argv: ptr] : i64
let path: str = 0 as str
let disassemble: bool = false
let path = 0 as str
let disassemble = false
for i in 1..argc
let arg: str = mem.read64(argv + i * 8) as str
let arg = mem.read64(argv + i * 8) as str
if str.equal(arg, "-d")
disassemble = true
else
@@ -288,7 +288,7 @@ func main[argc: i64, argv: ptr] : i64
io.println("Usage: chip8 -d <path>")
return 1
let c: CHIP8 = chip8_create()
let c = chip8_create()
let buffer: io.Buffer = must(io.read_binary_file?(path))