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Andre Wagner
2026-05-10 07:53:28 -05:00
parent 9561d5cacd
commit 1b53c813b4
34 changed files with 79 additions and 89 deletions
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63
doc/OPCODES
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@@ -22,12 +22,13 @@ Stack operations:
a0 c0 e0 pushi [int] Push int
a1 c1 e1 pushc [index] Push constant
a2 c2 e2 pushf [function] Push function id
00 pushz Push zero (or false)
01 pusht Push true
02 newa Push (create) empty array
03 newt Push (create) empty table
04 pop
05 dup
00 pushn Push nil
01 pushz Push zero (or false)
02 pusht Push true
03 newa Push (create) empty array
04 newt Push (create) empty table
05 pop
06 dup
Local variables:
a3 c3 e3 pushv [int] Push n nil values into the stack (used to init local vars)
@@ -44,12 +45,12 @@ Function operations:
Table and array operations:
16 getkv Get table's value based on key (pull 1 value, push 1 value)
17 setkv Set table's key and value (pull 2 values from stack)
18 geta Get array's position value
19 seta Set array's position value (pull 2 values from stack)
1a appnd Add value to the end of array
1b next Push the next pair into the stack (for loops)
1c smt Set value metatable
1d mt Get value metatable
a8 c8 e8 geti Get array's position value
a9 c9 e9 seti Set array's position value
18 appnd Add value to the end of array
19 next Push the next pair into the stack (for loops)
1a smt Set value metatable
1b mt Get value metatable
Logical/arithmetic:
20 sum Sum top 2 values in stack
@@ -57,24 +58,24 @@ Logical/arithmetic:
22 mul Multiply top 2 values in stack
23 div Float division
24 idiv Integer division
25 eq Equality
26 neq Inequality
27 lt Less than
28 lte Less than or equals
29 gt Greater than
2a gte Greater than or equals
2b and Bitwise AND
2c or Bitwise OR
2d xor Bitwise XOR
2e pow Power
2f shl Shift left
30 shr Shift right
31 mod Modulo
25 mod Modulo
26 eq Equality
27 neq Inequality
28 lt Less than
29 lte Less than or equals
2a gt Greater than
2b gte Greater than or equals
2c and Bitwise AND
2d or Bitwise OR
2e xor Bitwise XOR
2f pow Power
30 shl Shift left
31 shr Shift right
Other value operations:
40 len Get table, array or string size
41 type Get type from value at the top of the stack
b0 cast [type] Cast type to another type
aa cast [type] Cast type to another type
42 ver Return VM version
External code:
@@ -82,12 +83,14 @@ External code:
49 asmbl Assemble code to bytecode format
4a load Load bytecode as function (will place function on stack)
Control flow:
a8 c8 e8 bz [pc] Branch if zero
a9 c9 e9 bnz [pc] Branch if not zero
aa ca ea jmp [pc] Unconditional jump
Control flow (the destination is always a 16-bit field):
ca bz [pc] Branch if zero
cb bnz [pc] Branch if not zero
cc jmp [pc] Unconditional jump
* Jumps can only happen within the same function.
Memory management:
4b gc Call garbage collector
Error handling: (0xa0~0xaf)
???