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https://github.com/janet-lang/janet
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01a95426b3
segfaults alot. Added dst_disasm to reconstruct dsts assembly from a funcdef.
68 lines
1.8 KiB
Plaintext
68 lines
1.8 KiB
Plaintext
# A .dsts file will contain VM, assembly for a dst function. This includes
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# associated constants and what not. The assembler should be able to
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# simply construct a FuncDef from this file. This file is also parsed
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# in the same markup as dst itself (extended S expressions)
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{
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arity 3
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source "source file path"
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vararg false
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# Name for reference by nested funcdefs
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name outerfunc
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# Contains the bytecode for this function. This can be assembly
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# instructions or integers. Assembly will be converted to integer bytecodes immediately.
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bytecode [
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(load-constant 0 bork)
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(load-constant 1 bip)
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(add 0 0 1)
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(add-immediate 0 0 127)
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(push3 0 0 0)
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(push3 0 0 0)
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(push3 0 0 0)
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(syscall 1 0)
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(return 0)
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]
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# A source map is optional. The sourcemap corresponds with the byte code.
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# Each instruction has two source map entries, offset start and offset end.
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# map [
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# 1
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# 2
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# 3
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# 10
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# 15
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# 39
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# 90
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# 134
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# ...
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# ]
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#
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# The number of slots available for the function.
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# Slots can be named as well for convenience.
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slots [
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x
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y
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z
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]
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# Captured outer environments that are referenced
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captures [ ]
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# Constants are an array or tuple. For named constants, use a tuple that begins with let
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# For a literal tuple, use (quote tuple), or 'tuple. Without names, constants must be indexed
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# from their number
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# Literal FuncEnvs and Functions may be possible later
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constants [
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:hello
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(def bork 123)
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(def bip 456)
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'(1 2 3)
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(def atuple (1 2 3))
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(567)
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]
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# Arbitrary meta data can be added to the source
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my-meta-2 @{
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1 2 3 4
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}
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my-meta {
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1 2 3 4 5 6 7 8 9 0 11 12 13 14
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}
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}
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