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Andre Wagner
2026-05-09 11:34:51 -05:00
parent 8a26ba5351
commit 554a7b55c5
2 changed files with 27 additions and 11 deletions
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20
lua-temp/doc/OPCODES
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@@ -45,12 +45,12 @@ Function operations:
Table and array operations: Table and array operations:
16 getkv Get table's value based on key (pull 1 value, push 1 value) 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) 17 setkv Set table's key and value (pull 2 values from stack)
18 geta Get array's position value a8 c8 e8 geta Get array's position value
19 seta Set array's position value (pull 2 values from stack) a9 c9 e9 seta Set array's position value
1a appnd Add value to the end of array 18 appnd Add value to the end of array
1b next Push the next pair into the stack (for loops) 19 next Push the next pair into the stack (for loops)
1c smt Set value metatable 1a smt Set value metatable
1d mt Get value metatable 1b mt Get value metatable
Logical/arithmetic: Logical/arithmetic:
20 sum Sum top 2 values in stack 20 sum Sum top 2 values in stack
@@ -75,7 +75,7 @@ Logical/arithmetic:
Other value operations: Other value operations:
40 len Get table, array or string size 40 len Get table, array or string size
41 type Get type from value at the top of the stack 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 42 ver Return VM version
External code: External code:
@@ -84,9 +84,9 @@ External code:
4a load Load bytecode as function (will place function on stack) 4a load Load bytecode as function (will place function on stack)
Control flow (the destination is always a 16-bit field): Control flow (the destination is always a 16-bit field):
c8 bz [pc] Branch if zero ca bz [pc] Branch if zero
c9 bnz [pc] Branch if not zero cb bnz [pc] Branch if not zero
ca jmp [pc] Unconditional jump cc jmp [pc] Unconditional jump
* Jumps can only happen within the same function. * Jumps can only happen within the same function.
Memory management: Memory management:

18
lua-temp/tests.lua
View File

@@ -340,7 +340,23 @@ do TEST "VM: GC strings"
assert_eq(vm.heap:size(), 0) assert_eq(vm.heap:size(), 0)
end end
-- TODO - collect string (GC) do TEST "VM: arrays"
local vm = VM.new():set_debug(true):load(assemble [
.func 0
newa
pushi 10
seta 0
pushi 20
seta 1
pushi 30
seta 2
geta 1
]):call(0)
print(vm:debug_heap())
assert_eq(vm:to_integer(-1), 20)
assert_eq(vm:is(-2, 'array'), true)
assert_eq(vm.heap:size(), 1)
end
print('End.') print('End.')