operations.md

Lox68k data types, operators, natives, and library functions

Types

Any

= == != addr case const equal error id name print return string type when

Bool

Works for any type, used in a boolean context

! and if for or while

Int

+ - * / \ < <= > >= abs asc bin bit_and bit_not bit_or bit_shift bit_xor chr dec hex max min parse_int random seed_rand trunc

Real

+ - * / \ < <= > >= abs acos acosh asin asinh atan atanh cos cosh dec deg exp log max min parse_real pi pow rad sin sinh sqrt tan tanh trunc

String

+ < <= > >= [] [:] asc bin chr dec hex index input join length lower match max min parse_int parse_real split upper

List

+ [] [:] .. append delete filter index insert join length list map reduce reverse split

Class

() < instance Map Object parent Set super

Instance

[] . class_of clone init instance remove slots super this

Closure

() -> complement const disasm id handle

Native

()

Bound

() disasm

Iterator

@ ^ it_clone next slots valid

Topics

Machine-level support

addr exec heap peek peekl peekw poke pokel pokew trap

Input/output

input keycode print sound

System

clock disasm gc sleep

Exceptions

error handle

LCD control

lcd_clear lcd_defchar lcd_goto lcd_puts

Debugging

dbg_call dbg_code dbg_gc dbg_nat dbg_stat dbg_step disasm

Some numbers

• 21 keywords
• 73 native functions
• 63 VM opcodes
• 12 data types
• about 6000 lines source code
• 56 k bytes code size on 68008 kit (48 k without debugging functions)
• Performance
  • 9k ops on 68008 kit
  • 70M ops on Raspberry 4 Linux
  • 300M ops on Intel i7 Laptop Windows 11