forked from AbleOS/holey-bytes
Lottsa things changed
This commit is contained in:
ondra05
parent
3602380b49
commit
c1905062c4
202
Cargo.lock
generated
202
Cargo.lock
generated
|
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@ -2,93 +2,12 @@
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|||
# It is not intended for manual editing.
|
||||
version = 3
|
||||
|
||||
[[package]]
|
||||
name = "ahash"
|
||||
version = "0.8.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2c99f64d1e06488f620f932677e24bc6e2897582980441ae90a671415bd7ec2f"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"once_cell",
|
||||
"version_check",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "allocator-api2"
|
||||
version = "0.2.16"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0942ffc6dcaadf03badf6e6a2d0228460359d5e34b57ccdc720b7382dfbd5ec5"
|
||||
|
||||
[[package]]
|
||||
name = "ariadne"
|
||||
version = "0.3.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "72fe02fc62033df9ba41cba57ee19acf5e742511a140c7dbc3a873e19a19a1bd"
|
||||
dependencies = [
|
||||
"unicode-width",
|
||||
"yansi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "beef"
|
||||
version = "0.5.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3a8241f3ebb85c056b509d4327ad0358fbbba6ffb340bf388f26350aeda225b1"
|
||||
|
||||
[[package]]
|
||||
name = "bytemuck"
|
||||
version = "1.13.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "17febce684fd15d89027105661fec94afb475cb995fbc59d2865198446ba2eea"
|
||||
|
||||
[[package]]
|
||||
name = "cfg-if"
|
||||
version = "1.0.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
|
||||
|
||||
[[package]]
|
||||
name = "fnv"
|
||||
version = "1.0.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
|
||||
|
||||
[[package]]
|
||||
name = "hashbrown"
|
||||
version = "0.13.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "43a3c133739dddd0d2990f9a4bdf8eb4b21ef50e4851ca85ab661199821d510e"
|
||||
dependencies = [
|
||||
"ahash",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "hashbrown"
|
||||
version = "0.14.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2c6201b9ff9fd90a5a3bac2e56a830d0caa509576f0e503818ee82c181b3437a"
|
||||
dependencies = [
|
||||
"ahash",
|
||||
"allocator-api2",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "hbasm"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"ariadne",
|
||||
"bytemuck",
|
||||
"hashbrown 0.14.0",
|
||||
"hbbytecode",
|
||||
"lasso",
|
||||
"literify",
|
||||
"logos",
|
||||
"paste",
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||||
]
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[[package]]
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name = "hbbytecode"
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version = "0.1.0"
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dependencies = [
|
||||
"with_builtin_macros",
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]
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[[package]]
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name = "hbvm"
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@ -98,84 +17,17 @@ dependencies = [
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]
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[[package]]
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||||
name = "lasso"
|
||||
version = "0.7.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "4644821e1c3d7a560fe13d842d13f587c07348a1a05d3a797152d41c90c56df2"
|
||||
dependencies = [
|
||||
"ahash",
|
||||
"hashbrown 0.13.2",
|
||||
]
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[[package]]
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name = "literify"
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name = "hbxrt"
|
||||
version = "0.1.0"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "54e4d365df794ed78b4ce1061886f82eae7afa8e3a98ce4c4b0bfd0c777b1175"
|
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dependencies = [
|
||||
"litrs",
|
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"proc-macro2",
|
||||
"quote",
|
||||
"hbvm",
|
||||
]
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|
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[[package]]
|
||||
name = "litrs"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "4f17c3668f3cc1132437cdadc93dab05e52d592f06948d3f64828430c36e4a70"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "logos"
|
||||
version = "0.13.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c000ca4d908ff18ac99b93a062cb8958d331c3220719c52e77cb19cc6ac5d2c1"
|
||||
dependencies = [
|
||||
"logos-derive",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "logos-codegen"
|
||||
version = "0.13.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dc487311295e0002e452025d6b580b77bb17286de87b57138f3b5db711cded68"
|
||||
dependencies = [
|
||||
"beef",
|
||||
"fnv",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"regex-syntax",
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"syn",
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||||
]
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|
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[[package]]
|
||||
name = "logos-derive"
|
||||
version = "0.13.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dbfc0d229f1f42d790440136d941afd806bc9e949e2bcb8faa813b0f00d1267e"
|
||||
dependencies = [
|
||||
"logos-codegen",
|
||||
]
|
||||
|
||||
[[package]]
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||||
name = "once_cell"
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||||
version = "1.18.0"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
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||||
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||||
[[package]]
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||||
name = "paste"
|
||||
version = "1.0.14"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "de3145af08024dea9fa9914f381a17b8fc6034dfb00f3a84013f7ff43f29ed4c"
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||||
|
||||
[[package]]
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||||
name = "proc-macro2"
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||||
version = "1.0.66"
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||||
version = "1.0.67"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "18fb31db3f9bddb2ea821cde30a9f70117e3f119938b5ee630b7403aa6e2ead9"
|
||||
checksum = "3d433d9f1a3e8c1263d9456598b16fec66f4acc9a74dacffd35c7bb09b3a1328"
|
||||
dependencies = [
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"unicode-ident",
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]
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@ -189,17 +41,11 @@ dependencies = [
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"proc-macro2",
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]
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[[package]]
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||||
name = "regex-syntax"
|
||||
version = "0.6.29"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1"
|
||||
|
||||
[[package]]
|
||||
name = "syn"
|
||||
version = "2.0.29"
|
||||
version = "1.0.109"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c324c494eba9d92503e6f1ef2e6df781e78f6a7705a0202d9801b198807d518a"
|
||||
checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
|
||||
dependencies = [
|
||||
"proc-macro2",
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"quote",
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@ -208,24 +54,26 @@ dependencies = [
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|||
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||||
[[package]]
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name = "unicode-ident"
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||||
version = "1.0.11"
|
||||
version = "1.0.12"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "301abaae475aa91687eb82514b328ab47a211a533026cb25fc3e519b86adfc3c"
|
||||
checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
|
||||
|
||||
[[package]]
|
||||
name = "unicode-width"
|
||||
version = "0.1.10"
|
||||
name = "with_builtin_macros"
|
||||
version = "0.0.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
|
||||
checksum = "a59d55032495429b87f9d69954c6c8602e4d3f3e0a747a12dea6b0b23de685da"
|
||||
dependencies = [
|
||||
"with_builtin_macros-proc_macros",
|
||||
]
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||||
[[package]]
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||||
name = "version_check"
|
||||
version = "0.9.4"
|
||||
name = "with_builtin_macros-proc_macros"
|
||||
version = "0.0.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
|
||||
|
||||
[[package]]
|
||||
name = "yansi"
|
||||
version = "0.5.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "09041cd90cf85f7f8b2df60c646f853b7f535ce68f85244eb6731cf89fa498ec"
|
||||
checksum = "15bd7679c15e22924f53aee34d4e448c45b674feb6129689af88593e129f8f42"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
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"quote",
|
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"syn",
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]
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@ -1,3 +1,3 @@
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[workspace]
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resolver = "2"
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members = ["hbasm", "hbbytecode", "hbvm"]
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members = ["hbbytecode", "hbvm", "hbxrt"]
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|
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@ -1,22 +0,0 @@
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[package]
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||||
name = "hbasm"
|
||||
version = "0.1.0"
|
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edition = "2021"
|
||||
|
||||
[dependencies]
|
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ariadne = "0.3"
|
||||
bytemuck = "1.13"
|
||||
hashbrown = "0.14"
|
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hbbytecode = { path = "../hbbytecode" }
|
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literify = "0.1"
|
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paste = "1.0"
|
||||
|
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[dependencies.lasso]
|
||||
version = "0.7"
|
||||
default-features = false
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features = ["no-std"]
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||||
|
||||
[dependencies.logos]
|
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version = "0.13"
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default-features = false
|
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features = ["export_derive"]
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@ -1,12 +0,0 @@
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-- Add two numbers
|
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-- A + B = C
|
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-- r1 A
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li r1, 2
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-- r2 Result
|
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li r2, 0
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-- B = 4
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addi r2, r1, 4
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-- terminate execution
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tx
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@ -1,16 +0,0 @@
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-- r1 will be the temp in fahrenheit
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-- r2 temp in celsius
|
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-- r3/r4/r5 will be used by constants
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|
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-- (f - 32) * 5 / 9
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li r1, 100
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li r3, 32
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li r4, 5
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li r5, 9
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sub r2, r1, r3
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mul r2, r2, r4
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dir r2, r0, r2, r5
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tx
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@ -1,14 +0,0 @@
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li r255, 0
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ecall
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li r255, 1
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li r254, 1
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li r253, 100
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ecall
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li r255, 2
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li r254, 0
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li r253, 0
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ecall
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tx
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@ -1,2 +0,0 @@
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L:
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jal r0, r0, L
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@ -1,4 +0,0 @@
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li r20, 1010
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||||
st r20, r24, 0, 1
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addi r24, r0, 10
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tx
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||||
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@ -1,18 +0,0 @@
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jmp r0, start
|
||||
start:
|
||||
jmp r0, init_serial_port
|
||||
|
||||
-- Uses r20 to set the port
|
||||
init_serial_port:
|
||||
add r20, r30, r10
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||||
li r20, 00
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||||
|
||||
-- outb(PORT + 1, 0x00); // Disable all interrupts
|
||||
-- outb(PORT + 3, 0x80); // Enable DLAB (set baud rate divisor)
|
||||
-- outb(PORT + 0, 0x03); // Set divisor to 3 (lo byte) 38400 baud
|
||||
-- outb(PORT + 1, 0x00); // (hi byte)
|
||||
-- outb(PORT + 3, 0x03); // 8 bits, no parity, one stop bit
|
||||
-- outb(PORT + 2, 0xC7); // Enable FIFO, clear them, with 14-byte threshold
|
||||
-- outb(PORT + 4, 0x0B); // IRQs enabled, RTS/DSR set
|
||||
-- outb(PORT + 4, 0x1E); // Set in loopback mode, test the serial chip
|
||||
-- outb(PORT + 0, 0xAE); // Test serial chip (send byte 0xAE and check if serial returns same byte)
|
||||
104
hbasm/src/lib.rs
104
hbasm/src/lib.rs
|
|
@ -1,104 +0,0 @@
|
|||
//! Holey Bytes Assembler
|
||||
//!
|
||||
//! Some people claim:
|
||||
//! > Write programs to handle text streams, because that is a universal interface.
|
||||
//!
|
||||
//! We at AbleCorp believe that nice programatic API is nicer than piping some text
|
||||
//! into a program. It's less error-prone and faster.
|
||||
//!
|
||||
//! So this crate contains both assembleer with API for programs and a text assembler
|
||||
//! for humans to write
|
||||
|
||||
#![no_std]
|
||||
|
||||
extern crate alloc;
|
||||
|
||||
mod macros;
|
||||
|
||||
use {
|
||||
alloc::{vec, vec::Vec},
|
||||
hashbrown::HashSet,
|
||||
};
|
||||
|
||||
/// Assembler
|
||||
///
|
||||
/// - Opcode-generic, instruction-type-specific methods are named `i_param_<type>`
|
||||
/// - You likely won't need to use them, but they are here, just in case :)
|
||||
/// - Instruction-specific methods are named `i_<instruction>`
|
||||
pub struct Assembler {
|
||||
pub buf: Vec<u8>,
|
||||
pub sub: HashSet<usize>,
|
||||
}
|
||||
|
||||
impl Default for Assembler {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
buf: vec![0; 4],
|
||||
sub: Default::default(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
hbbytecode::invoke_with_def!(macros::text::gen_text);
|
||||
|
||||
impl Assembler {
|
||||
hbbytecode::invoke_with_def!(macros::asm::impl_asm);
|
||||
|
||||
/// Append 12 zeroes (UN) at the end and add magic to the begining
|
||||
///
|
||||
/// # HoleyBytes lore
|
||||
///
|
||||
/// In reference HBVM implementation checks are done in
|
||||
/// a separate phase before execution.
|
||||
///
|
||||
/// This way execution will be much faster as they have to
|
||||
/// be done only once.
|
||||
///
|
||||
/// There was an issue. You cannot statically check register values and
|
||||
/// `JAL` instruction could hop at the end of program to some byte, which
|
||||
/// will be interpreted as some valid opcode and VM in attempt to decode
|
||||
/// the instruction performed out-of-bounds read which leads to undefined behaviour.
|
||||
///
|
||||
/// Several options were considered to overcome this, but inserting some data at
|
||||
/// program's end which when executed would lead to undesired behaviour, though
|
||||
/// not undefined behaviour.
|
||||
///
|
||||
/// Newly created `UN` (as UNreachable) was chosen as
|
||||
/// - It was a good idea to add some equivalent to `ud2` anyways
|
||||
/// - It was chosen to be zero
|
||||
/// - What if you somehow reached that code, it will appropriately bail :)
|
||||
/// - (yes, originally `NOP` was considered)
|
||||
///
|
||||
/// Why 12 bytes? That's the size of largest instruction parameter part.
|
||||
pub fn finalise(&mut self) {
|
||||
self.buf.extend([0; 12]);
|
||||
self.buf[0..4].copy_from_slice(&0xAB1E0B_u32.to_le_bytes());
|
||||
}
|
||||
}
|
||||
|
||||
/// Immediate value
|
||||
///
|
||||
/// # Implementor notice
|
||||
/// It should insert exactly 8 bytes, otherwise output will be malformed.
|
||||
/// This is not checked in any way
|
||||
pub trait Imm {
|
||||
/// Insert immediate value
|
||||
fn insert(&self, asm: &mut Assembler);
|
||||
}
|
||||
|
||||
/// Implement immediate values
|
||||
macro_rules! impl_imm_le_bytes {
|
||||
($($ty:ty),* $(,)?) => {
|
||||
$(
|
||||
impl Imm for $ty {
|
||||
#[inline(always)]
|
||||
fn insert(&self, asm: &mut Assembler) {
|
||||
// Convert to little-endian bytes, insert.
|
||||
asm.buf.extend(self.to_le_bytes());
|
||||
}
|
||||
}
|
||||
)*
|
||||
};
|
||||
}
|
||||
|
||||
impl_imm_le_bytes!(u64, i64, f64);
|
||||
|
|
@ -1,89 +0,0 @@
|
|||
//! Macros to generate [`crate::Assembler`]
|
||||
|
||||
/// Incremental token-tree muncher to implement specific instruction
|
||||
/// functions based on generic function for instruction type
|
||||
macro_rules! impl_asm_opcodes {
|
||||
( // End case
|
||||
$generic:ident
|
||||
($($param_i:ident: $param_ty:ty),*)
|
||||
=> []
|
||||
) => {};
|
||||
|
||||
(
|
||||
$generic:ident
|
||||
($($param_i:ident: $param_ty:ty),*)
|
||||
=> [$opcode:ident, $($rest:tt)*]
|
||||
) => {
|
||||
// Instruction-specific function
|
||||
paste::paste! {
|
||||
#[inline(always)]
|
||||
pub fn [<i_ $opcode:lower>](&mut self, $($param_i: $param_ty),*) {
|
||||
self.$generic(hbbytecode::opcode::$opcode, $($param_i),*)
|
||||
}
|
||||
}
|
||||
|
||||
// And recurse!
|
||||
macros::asm::impl_asm_opcodes!(
|
||||
$generic($($param_i: $param_ty),*)
|
||||
=> [$($rest)*]
|
||||
);
|
||||
};
|
||||
}
|
||||
|
||||
/// Numeric value insert
|
||||
macro_rules! impl_asm_insert {
|
||||
// Immediate - this is trait-based,
|
||||
// the insertion is delegated to its implementation
|
||||
($self:expr, $id:ident, I) => {
|
||||
Imm::insert(&$id, $self)
|
||||
};
|
||||
|
||||
// Length - cannot be more than 2048
|
||||
($self:expr, $id:ident, L) => {{
|
||||
assert!($id <= 2048);
|
||||
$self.buf.extend($id.to_le_bytes())
|
||||
}};
|
||||
|
||||
// Other numbers, just insert their bytes, little endian
|
||||
($self:expr, $id:ident, $_:ident) => {
|
||||
$self.buf.extend($id.to_le_bytes())
|
||||
};
|
||||
}
|
||||
|
||||
/// Implement assembler
|
||||
macro_rules! impl_asm {
|
||||
(
|
||||
$(
|
||||
$ityn:ident
|
||||
($($param_i:ident: $param_ty:ident),* $(,)?)
|
||||
=> [$($opcode:ident),* $(,)?],
|
||||
)*
|
||||
) => {
|
||||
paste::paste! {
|
||||
$(
|
||||
// Opcode-generic functions specific for instruction types
|
||||
pub fn [<i_param_ $ityn>](&mut self, opcode: u8, $($param_i: macros::asm::ident_map_ty!($param_ty)),*) {
|
||||
self.buf.push(opcode);
|
||||
$(macros::asm::impl_asm_insert!(self, $param_i, $param_ty);)*
|
||||
}
|
||||
|
||||
// Generate opcode-specific functions calling the opcode-generic ones
|
||||
macros::asm::impl_asm_opcodes!(
|
||||
[<i_param_ $ityn>]($($param_i: macros::asm::ident_map_ty!($param_ty)),*)
|
||||
=> [$($opcode,)*]
|
||||
);
|
||||
)*
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
/// Map operand type to Rust type
|
||||
#[rustfmt::skip]
|
||||
macro_rules! ident_map_ty {
|
||||
(R) => { u8 }; // Register is just u8
|
||||
(I) => { impl Imm }; // Immediate is anything implementing the trait
|
||||
(L) => { u16 }; // Copy count
|
||||
($id:ident) => { $id }; // Anything else → identity map
|
||||
}
|
||||
|
||||
pub(crate) use {ident_map_ty, impl_asm, impl_asm_insert, impl_asm_opcodes};
|
||||
|
|
@ -1,6 +0,0 @@
|
|||
//! And here the land of macros begin.
|
||||
//!
|
||||
//! They do not bite, really. Have you seen what Yandros is writing?
|
||||
|
||||
pub mod asm;
|
||||
pub mod text;
|
||||
|
|
@ -1,293 +0,0 @@
|
|||
//! Macros to generate text-code assembler at [`crate::text`]
|
||||
// Refering in module which generates a module to that module — is that even legal? :D
|
||||
|
||||
/// Generate text code based assembler
|
||||
macro_rules! gen_text {
|
||||
(
|
||||
$(
|
||||
$ityn:ident
|
||||
($($param_i:ident: $param_ty:ident),* $(,)?)
|
||||
=> [$($opcode:ident),* $(,)?],
|
||||
)*
|
||||
) => {
|
||||
/// # Text assembler
|
||||
/// Text assembler generated simply calls methods in the [`crate::Assembler`] type.
|
||||
///
|
||||
/// # Syntax
|
||||
/// ```text
|
||||
/// instruction op1, op2, …
|
||||
/// …
|
||||
/// ```
|
||||
/// - Opcode names are lowercase
|
||||
/// - Registers are prefixed with `r` followed by number
|
||||
/// - Operands are separated by `,`
|
||||
/// - Instructions are separated by either line feed or `;` (αυτό δεν είναι ερωτηματικό!)
|
||||
/// - Labels are defined by their names followed by colon `label:`
|
||||
/// - Labels are referenced simply by their names
|
||||
/// - Immediates are numbers, can be negative, floats are not yet supported
|
||||
pub mod text {
|
||||
use {
|
||||
crate::{
|
||||
Assembler,
|
||||
macros::text::*,
|
||||
},
|
||||
hashbrown::HashMap,
|
||||
lasso::{Key, Rodeo, Spur},
|
||||
logos::{Lexer, Logos, Span},
|
||||
};
|
||||
|
||||
paste::paste!(literify::literify! {
|
||||
/// Assembly token
|
||||
#[derive(Clone, Copy, Debug, PartialEq, Eq, Logos)]
|
||||
#[logos(extras = Rodeo)]
|
||||
#[logos(skip r"[ \t\t]+")]
|
||||
#[logos(skip r"-- .*")]
|
||||
pub enum Token {
|
||||
$($(#[token(~([<$opcode:lower>]), |_| hbbytecode::opcode::[<$opcode:upper>])])*)*
|
||||
Opcode(u8),
|
||||
|
||||
#[regex("[0-9]+", |l| l.slice().parse().ok())]
|
||||
#[regex(
|
||||
"-[0-9]+",
|
||||
|lexer| {
|
||||
Some(u64::from_ne_bytes(lexer.slice().parse::<i64>().ok()?.to_ne_bytes()))
|
||||
},
|
||||
)] Integer(u64),
|
||||
|
||||
#[regex(
|
||||
"r[0-9]+",
|
||||
|lexer| match lexer.slice()[1..].parse() {
|
||||
Ok(n) => Some(n),
|
||||
_ => None
|
||||
},
|
||||
)] Register(u8),
|
||||
|
||||
#[regex(
|
||||
r"\p{XID_Start}\p{XID_Continue}*:",
|
||||
|lexer| lexer.extras.get_or_intern(&lexer.slice()[..lexer.slice().len() - 1]),
|
||||
)] Label(Spur),
|
||||
|
||||
#[regex(
|
||||
r"\p{XID_Start}\p{XID_Continue}*",
|
||||
|lexer| lexer.extras.get_or_intern(lexer.slice()),
|
||||
)] Symbol(Spur),
|
||||
|
||||
#[token("\n")]
|
||||
#[token(";")] ISep,
|
||||
#[token(",")] PSep,
|
||||
}
|
||||
});
|
||||
|
||||
/// Type of error
|
||||
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
|
||||
pub enum ErrorKind {
|
||||
UnexpectedToken,
|
||||
InvalidToken,
|
||||
UnexpectedEnd,
|
||||
InvalidSymbol,
|
||||
}
|
||||
|
||||
/// Text assembly error
|
||||
#[derive(Clone, Debug, PartialEq, Eq)]
|
||||
pub struct Error {
|
||||
pub kind: ErrorKind,
|
||||
pub span: Span,
|
||||
}
|
||||
|
||||
/// Parse code and insert instructions
|
||||
pub fn assemble(asm: &mut Assembler, code: &str) -> Result<(), Error> {
|
||||
pub struct TextAsm<'a> {
|
||||
asm: &'a mut Assembler,
|
||||
lexer: Lexer<'a, Token>,
|
||||
symloc: HashMap<Spur, usize>,
|
||||
}
|
||||
|
||||
impl<'a> TextAsm<'a> {
|
||||
fn next(&mut self) -> Result<Token, ErrorKind> {
|
||||
match self.lexer.next() {
|
||||
Some(Ok(t)) => Ok(t),
|
||||
Some(Err(())) => Err(ErrorKind::InvalidToken),
|
||||
None => Err(ErrorKind::UnexpectedEnd),
|
||||
}
|
||||
}
|
||||
|
||||
#[inline(always)]
|
||||
fn run(&mut self) -> Result<(), ErrorKind> {
|
||||
loop {
|
||||
match self.lexer.next() {
|
||||
// Got an opcode
|
||||
Some(Ok(Token::Opcode(op))) => {
|
||||
match op {
|
||||
// Special-cased
|
||||
hbbytecode::opcode::BRC => {
|
||||
param_extract_itm!(
|
||||
self,
|
||||
p0: R,
|
||||
p1: R,
|
||||
p2: u8
|
||||
);
|
||||
|
||||
self.asm.i_param_bbb(op, p0, p1, p2);
|
||||
},
|
||||
|
||||
// Take all the opcodes and match them to their corresponding functions
|
||||
$(
|
||||
#[allow(unreachable_patterns)]
|
||||
$(hbbytecode::opcode::$opcode)|* => paste::paste!({
|
||||
param_extract_itm!(self, $($param_i: $param_ty),*);
|
||||
self.asm.[<i_param_ $ityn>](op, $($param_i),*);
|
||||
}),
|
||||
)*
|
||||
|
||||
// Already matched in Logos, should not be able to obtain
|
||||
// invalid opcode.
|
||||
_ => unreachable!(),
|
||||
}
|
||||
}
|
||||
// Insert label to table
|
||||
Some(Ok(Token::Label(lbl))) => {
|
||||
self.symloc.insert(lbl, self.asm.buf.len());
|
||||
}
|
||||
// Instruction separator (LF, ;)
|
||||
Some(Ok(Token::ISep)) => (),
|
||||
Some(Ok(_)) => return Err(ErrorKind::UnexpectedToken),
|
||||
Some(Err(())) => return Err(ErrorKind::InvalidToken),
|
||||
None => return Ok(()),
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
let mut asm = TextAsm {
|
||||
asm,
|
||||
lexer: Token::lexer(code),
|
||||
symloc: HashMap::default(),
|
||||
};
|
||||
|
||||
asm.run()
|
||||
.map_err(|kind| Error { kind, span: asm.lexer.span() })?;
|
||||
|
||||
// Walk table and substitute labels
|
||||
// for their addresses
|
||||
for &loc in &asm.asm.sub {
|
||||
// Extract indices from the code and get addresses from table
|
||||
let val = asm.symloc
|
||||
.get(
|
||||
&Spur::try_from_usize(bytemuck::pod_read_unaligned::<u64>(
|
||||
&asm.asm.buf[loc..loc + core::mem::size_of::<u64>()]) as _
|
||||
).unwrap()
|
||||
)
|
||||
.ok_or(Error { kind: ErrorKind::InvalidSymbol, span: 0..0 })?
|
||||
.to_le_bytes();
|
||||
|
||||
// New address
|
||||
asm.asm.buf[loc..]
|
||||
.iter_mut()
|
||||
.zip(val)
|
||||
.for_each(|(dst, src)| *dst = src);
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
// Fun fact: this is a little hack
|
||||
// It may slow the things a little bit down, but
|
||||
// it made the macro to be made pretty nice.
|
||||
//
|
||||
// If you have any idea how to get rid of this,
|
||||
// contributions are welcome :)
|
||||
// I *likely* won't try anymore.
|
||||
enum InternalImm {
|
||||
Const(u64),
|
||||
Named(Spur),
|
||||
}
|
||||
|
||||
impl $crate::Imm for InternalImm {
|
||||
#[inline]
|
||||
fn insert(&self, asm: &mut Assembler) {
|
||||
match self {
|
||||
// Constant immediate, just put it in
|
||||
Self::Const(a) => a.insert(asm),
|
||||
// Label
|
||||
Self::Named(a) => {
|
||||
// Insert to the sub table that substitution will be
|
||||
// requested
|
||||
asm.sub.insert(asm.buf.len());
|
||||
// Insert value from interner in place
|
||||
asm.buf.extend((a.into_usize() as u64).to_le_bytes());
|
||||
},
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
/// Extract item by pattern, otherwise return [`ErrorKind::UnexpectedToken`]
|
||||
macro_rules! extract_pat {
|
||||
($self:expr, $pat:pat) => {
|
||||
let $pat = $self.next()?
|
||||
else { return Err(ErrorKind::UnexpectedToken) };
|
||||
};
|
||||
}
|
||||
|
||||
/// Generate extract macro
|
||||
macro_rules! gen_extract {
|
||||
// Integer types have same body
|
||||
($($int:ident),* $(,)?) => {
|
||||
/// Extract operand from code
|
||||
macro_rules! extract {
|
||||
// Register (require prefixing with r)
|
||||
($self:expr, R, $id:ident) => {
|
||||
extract_pat!($self, Token::Register($id));
|
||||
};
|
||||
|
||||
($self:expr, L, $id:ident) => {
|
||||
extract_pat!($self, Token::Integer($id));
|
||||
if $id > 2048 {
|
||||
return Err(ErrorKind::InvalidToken);
|
||||
}
|
||||
|
||||
let $id = u16::try_from($id).unwrap();
|
||||
};
|
||||
|
||||
// Immediate
|
||||
($self:expr, I, $id:ident) => {
|
||||
let $id = match $self.next()? {
|
||||
// Either straight up integer
|
||||
Token::Integer(a) => InternalImm::Const(a),
|
||||
// …or a label
|
||||
Token::Symbol(a) => InternalImm::Named(a),
|
||||
_ => return Err(ErrorKind::UnexpectedToken),
|
||||
};
|
||||
};
|
||||
|
||||
// Get $int, if not fitting, the token is claimed invalid
|
||||
$(($self:expr, $int, $id:ident) => {
|
||||
extract_pat!($self, Token::Integer($id));
|
||||
let $id = $int::try_from($id).map_err(|_| ErrorKind::InvalidToken)?;
|
||||
});*;
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
gen_extract!(u8, u16, u32);
|
||||
|
||||
/// Parameter extract incremental token-tree muncher
|
||||
///
|
||||
/// What else would it mean?
|
||||
macro_rules! param_extract_itm {
|
||||
($self:expr, $($id:ident: $ty:ident)? $(, $($tt:tt)*)?) => {
|
||||
// Extract pattern
|
||||
$(extract!($self, $ty, $id);)?
|
||||
$(
|
||||
// Require operand separator
|
||||
extract_pat!($self, Token::PSep);
|
||||
// And go to the next (recursive)
|
||||
// …munch munch… yummy token trees.
|
||||
param_extract_itm!($self, $($tt)*);
|
||||
)?
|
||||
};
|
||||
}
|
||||
|
||||
pub(crate) use {extract, extract_pat, gen_text, param_extract_itm};
|
||||
|
|
@ -1,56 +0,0 @@
|
|||
use std::io::Write;
|
||||
|
||||
use hbasm::Assembler;
|
||||
|
||||
use {
|
||||
ariadne::{ColorGenerator, Label, Report, ReportKind, Source},
|
||||
std::{
|
||||
error::Error,
|
||||
io::{stdin, Read},
|
||||
},
|
||||
};
|
||||
|
||||
fn main() -> Result<(), Box<dyn Error>> {
|
||||
let mut code = String::new();
|
||||
stdin().read_to_string(&mut code)?;
|
||||
|
||||
let mut assembler = Assembler::default();
|
||||
if let Err(e) = hbasm::text::assemble(&mut assembler, &code) {
|
||||
let mut colors = ColorGenerator::new();
|
||||
|
||||
let e_code = match e.kind {
|
||||
hbasm::text::ErrorKind::UnexpectedToken => 1,
|
||||
hbasm::text::ErrorKind::InvalidToken => 2,
|
||||
hbasm::text::ErrorKind::UnexpectedEnd => 3,
|
||||
hbasm::text::ErrorKind::InvalidSymbol => 4,
|
||||
};
|
||||
let message = match e.kind {
|
||||
hbasm::text::ErrorKind::UnexpectedToken => "This token is not expected!",
|
||||
hbasm::text::ErrorKind::InvalidToken => "The token is not valid!",
|
||||
hbasm::text::ErrorKind::UnexpectedEnd => {
|
||||
"The assembler reached the end of input unexpectedly!"
|
||||
}
|
||||
hbasm::text::ErrorKind::InvalidSymbol => {
|
||||
"This referenced symbol doesn't have a corresponding label!"
|
||||
}
|
||||
};
|
||||
let a = colors.next();
|
||||
|
||||
Report::build(ReportKind::Error, "engine_internal", e.span.clone().start)
|
||||
.with_code(e_code)
|
||||
.with_message(format!("{:?}", e.kind))
|
||||
.with_label(
|
||||
Label::new(("engine_internal", e.span))
|
||||
.with_message(message)
|
||||
.with_color(a),
|
||||
)
|
||||
.finish()
|
||||
.eprint(("engine_internal", Source::from(&code)))
|
||||
.unwrap();
|
||||
} else {
|
||||
assembler.finalise();
|
||||
std::io::stdout().lock().write_all(&assembler.buf).unwrap();
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
|
@ -1,6 +1,7 @@
|
|||
[package]
|
||||
name = "hbbytecode"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
edition = "2018"
|
||||
|
||||
[dependencies]
|
||||
with_builtin_macros = "0.0.3"
|
||||
|
|
|
|||
|
|
@ -18,10 +18,11 @@ enum hbbc_Opcode: uint8_t {
|
|||
hbbc_Op_CMP , hbbc_Op_CMPU , hbbc_Op_DIR , hbbc_Op_NEG , hbbc_Op_NOT , hbbc_Op_ADDI ,
|
||||
hbbc_Op_MULI , hbbc_Op_ANDI , hbbc_Op_ORI , hbbc_Op_XORI , hbbc_Op_SLI , hbbc_Op_SRI ,
|
||||
hbbc_Op_SRSI , hbbc_Op_CMPI , hbbc_Op_CMPUI , hbbc_Op_CP , hbbc_Op_SWA , hbbc_Op_LI ,
|
||||
hbbc_Op_LD , hbbc_Op_ST , hbbc_Op_BMC , hbbc_Op_BRC , hbbc_Op_JMP , hbbc_Op_JAL ,
|
||||
hbbc_Op_JEQ , hbbc_Op_JNE , hbbc_Op_JLT , hbbc_Op_JGT , hbbc_Op_JLTU , hbbc_Op_JGTU ,
|
||||
hbbc_Op_ECALL , hbbc_Op_ADDF , hbbc_Op_SUBF , hbbc_Op_MULF , hbbc_Op_DIRF , hbbc_Op_FMAF ,
|
||||
hbbc_Op_NEGF , hbbc_Op_ITF , hbbc_Op_FTI , hbbc_Op_ADDFI , hbbc_Op_MULFI ,
|
||||
hhbc_Op_LRA , hbbc_Op_LD , hbbc_Op_ST , hbbc_Op_LDR , hhbc_Op_STR , hbbc_Op_BMC ,
|
||||
hbbc_Op_BRC , hbbc_Op_JMP , hbbc_Op_JMPR , hbbc_Op_JAL , hbbc_Op_JALR , hbbc_Op_JEQ ,
|
||||
hbbc_Op_JNE , hbbc_Op_JLT , hbbc_Op_JGT , hbbc_Op_JLTU , hbbc_Op_JGTU , hbbc_Op_ECALL ,
|
||||
hbbc_Op_ADDF , hbbc_Op_SUBF , hbbc_Op_MULF , hbbc_Op_DIRF , hbbc_Op_FMAF , hbbc_Op_NEGF ,
|
||||
hbbc_Op_ITF , hbbc_Op_FTI , hbbc_Op_ADDFI , hbbc_Op_MULFI ,
|
||||
} typedef hbbc_Opcode;
|
||||
|
||||
static_assert(sizeof(hbbc_Opcode) == 1);
|
||||
|
|
@ -42,6 +43,12 @@ struct hbbc_ParamBBDH
|
|||
typedef hbbc_ParamBBDH;
|
||||
static_assert(sizeof(hbbc_ParamBBDH) == 96 / 8);
|
||||
|
||||
struct hbbc_ParamBBWH
|
||||
{ uint8_t _0; uint8_t _1; uint32_t _2; uint16_t _3; }
|
||||
typedef hbbc_ParamBBWH;
|
||||
static_assert(sizeof(hbbc_ParamBBWH) == 64 / 8);
|
||||
|
||||
|
||||
struct hbbc_ParamBBD
|
||||
{ uint8_t _0; uint8_t _1; uint64_t _2; }
|
||||
typedef hbbc_ParamBBD;
|
||||
|
|
|
|||
64
hbbytecode/instructions.in
Normal file
64
hbbytecode/instructions.in
Normal file
|
|
@ -0,0 +1,64 @@
|
|||
// OPCODE, MNEMONIC, TYPE, DOC;
|
||||
|
||||
0, UN, N, "Cause an unreachable code trap" ;
|
||||
1, TX, N, "Termiante execution" ;
|
||||
2, NOP, N, "Do nothing" ;
|
||||
|
||||
3, ADD, RRR, "Addition" ;
|
||||
4, SUB, RRR, "Subtraction" ;
|
||||
5, MUL, RRR, "Multiplication" ;
|
||||
6, AND, RRR, "Bitand" ;
|
||||
7, OR, RRR, "Bitor" ;
|
||||
8, XOR, RRR, "Bitxor" ;
|
||||
9, SL, RRR, "Unsigned left bitshift" ;
|
||||
10, SR, RRR, "Unsigned right bitshift" ;
|
||||
11, SRS, RRR, "Signed right bitshift" ;
|
||||
12, CMP, RRR, "Signed comparsion" ;
|
||||
13, CMPU, RRR, "Unsigned comparsion" ;
|
||||
14, DIR, RRRR, "Merged divide-remainder" ;
|
||||
15, NOT, RR, "Logical negation" ;
|
||||
16, ADDI, RRD, "Addition with immediate" ;
|
||||
17, MULI, RRD, "Multiplication with immediate" ;
|
||||
18, ANDI, RRD, "Bitand with immediate" ;
|
||||
19, ORI, RRD, "Bitor with immediate" ;
|
||||
20, XORI, RRD, "Bitxor with immediate" ;
|
||||
21, SLI, RRW, "Unsigned left bitshift with immedidate";
|
||||
22, SRI, RRW, "Unsigned right bitshift with immediate";
|
||||
23, SRSI, RRW, "Signed right bitshift with immediate" ;
|
||||
24, CMPI, RRD, "Signed compare with immediate" ;
|
||||
25, CMPUI, RRD, "Unsigned compare with immediate" ;
|
||||
|
||||
26, CP, RR, "Copy register" ;
|
||||
27, SWA, RR, "Swap registers" ;
|
||||
28, LI, RD, "Load immediate" ;
|
||||
29, LRA, RRO, "Load relative address" ;
|
||||
30, LD, RRAH, "Load from absolute address" ;
|
||||
31, ST, RRAH, "Store to absolute address" ;
|
||||
32, LDR, RROH, "Load from relative address" ;
|
||||
33, STR, RROH, "Store to absolute address" ;
|
||||
34, BMC, RRH, "Copy block of memory" ;
|
||||
35, BRC, RRB, "Copy register block" ;
|
||||
|
||||
36, JMP, A, "Absolute jump" ;
|
||||
37, JMPR, O, "Relative jump" ;
|
||||
38, JAL, RRA, "Linking absolute jump" ;
|
||||
39, JALR, RRO, "Linking relative jump" ;
|
||||
40, JEQ, RRP, "Branch on equal" ;
|
||||
41, JNE, RRP, "Branch on nonequal" ;
|
||||
42, JLT, RRP, "Branch on lesser-than (signed)" ;
|
||||
43, JGT, RRP, "Branch on greater-than (signed)" ;
|
||||
44, JLTU, RRP, "Branch on lesser-than (unsigned)" ;
|
||||
45, JGTU, RRP, "Branch on greater-than (unsigned)" ;
|
||||
46, ECALL, N, "Issue ecall trap" ;
|
||||
|
||||
47, ADDF, RRR, "Floating addition" ;
|
||||
48, SUBF, RRR, "Floating subtraction" ;
|
||||
49, MULF, RRR, "Floating multiply" ;
|
||||
50, DIRF, RRRR, "Merged floating divide-remainder" ;
|
||||
51, FMAF, RRRR, "Fused floating multiply-add" ;
|
||||
52, NEGF, RR, "Floating sign negation" ;
|
||||
53, ITF, RR, "Int to float" ;
|
||||
54, FTI, RR, "Float to int" ;
|
||||
|
||||
55, ADDFI, RRD, "Floating addition with immediate" ;
|
||||
56, MULFI, RRD, "Floating multiplication with immediate";
|
||||
|
|
@ -1,175 +0,0 @@
|
|||
//! Generate HoleyBytes code validator
|
||||
|
||||
macro_rules! gen_valider {
|
||||
(
|
||||
$(
|
||||
$ityn:ident
|
||||
($($param_i:ident: $param_ty:ident),* $(,)?)
|
||||
=> [$($opcode:ident),* $(,)?],
|
||||
)*
|
||||
) => {
|
||||
#[allow(unreachable_code)]
|
||||
pub mod valider {
|
||||
//! Validate if program is sound to execute
|
||||
|
||||
/// Program validation error kind
|
||||
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
|
||||
pub enum ErrorKind {
|
||||
/// Unknown opcode
|
||||
InvalidInstruction,
|
||||
/// VM doesn't implement this valid opcode
|
||||
Unimplemented,
|
||||
/// Attempted to copy over register boundary
|
||||
RegisterArrayOverflow,
|
||||
/// Program is not validly terminated
|
||||
InvalidEnd,
|
||||
/// Program misses magic
|
||||
MissingMagic
|
||||
}
|
||||
|
||||
/// Error
|
||||
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
|
||||
pub struct Error {
|
||||
/// Kind
|
||||
pub kind: ErrorKind,
|
||||
/// Location in bytecode
|
||||
pub index: usize,
|
||||
}
|
||||
|
||||
/// Perform bytecode validation. If it passes, the program should be
|
||||
/// sound to execute.
|
||||
pub fn validate(mut program: &[u8]) -> Result<(), Error> {
|
||||
// Validate magic
|
||||
if program.get(0..4) != Some(&0xAB1E0B_u32.to_le_bytes()) {
|
||||
return Err(Error {
|
||||
kind: ErrorKind::MissingMagic,
|
||||
index: 0,
|
||||
});
|
||||
}
|
||||
|
||||
// Program has to end with 12 zeroes, if there is less than
|
||||
// 12 bytes, program is invalid.
|
||||
if program.len() < 12 {
|
||||
return Err(Error {
|
||||
kind: ErrorKind::InvalidEnd,
|
||||
index: 0,
|
||||
});
|
||||
}
|
||||
|
||||
// Verify that program ends with 12 zeroes
|
||||
for (index, item) in program.iter().enumerate().skip(program.len() - 12) {
|
||||
if *item != 0 {
|
||||
return Err(Error {
|
||||
kind: ErrorKind::InvalidEnd,
|
||||
index,
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
let start = program;
|
||||
program = &program[4..];
|
||||
loop {
|
||||
use crate::opcode::*;
|
||||
program = match program {
|
||||
// End of program
|
||||
[] => return Ok(()),
|
||||
|
||||
// Memory load/store cannot go out-of-bounds register array
|
||||
// B B D1 D2 D3 D4 D5 D6 D7 D8 H1 H2
|
||||
[LD..=ST, reg, _, _, _, _, _, _, _, _, _, count_0, count_1, ..]
|
||||
if usize::from(*reg) * 8
|
||||
+ usize::from(u16::from_le_bytes([*count_0, *count_1]))
|
||||
> 2048 =>
|
||||
{
|
||||
return Err(Error {
|
||||
kind: ErrorKind::RegisterArrayOverflow,
|
||||
index: (program.as_ptr() as usize) - (start.as_ptr() as usize),
|
||||
});
|
||||
}
|
||||
|
||||
// Block register copy cannot go out-of-bounds register array
|
||||
[BRC, src, dst, count, ..]
|
||||
if src.checked_add(*count).is_none()
|
||||
|| dst.checked_add(*count).is_none() =>
|
||||
{
|
||||
return Err(Error {
|
||||
kind: ErrorKind::RegisterArrayOverflow,
|
||||
index: (program.as_ptr() as usize) - (start.as_ptr() as usize),
|
||||
});
|
||||
}
|
||||
|
||||
$(
|
||||
$crate::gen_valider::inst_chk!(
|
||||
rest, $ityn, $($opcode),*
|
||||
)
|
||||
)|* => rest,
|
||||
|
||||
// The plebs
|
||||
_ => {
|
||||
return Err(Error {
|
||||
kind: ErrorKind::InvalidInstruction,
|
||||
index: (program.as_ptr() as usize) - (start.as_ptr() as usize),
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
/// Generate instruction check pattern
|
||||
macro_rules! inst_chk {
|
||||
// Sadly this has hardcoded instruction types,
|
||||
// as I cannot generate parts of patterns+
|
||||
|
||||
($rest:ident, bbbb, $($opcode:ident),*) => {
|
||||
// B B B B
|
||||
[$($opcode)|*, _, _, _, _, $rest @ ..]
|
||||
};
|
||||
|
||||
($rest:ident, bbb, $($opcode:ident),*) => {
|
||||
// B B B
|
||||
[$($opcode)|*, _, _, _, $rest @ ..]
|
||||
};
|
||||
|
||||
($rest:ident, bbdh, $($opcode:ident),*) => {
|
||||
// B B D1 D2 D3 D4 D5 D6 D7 D8 H1 H2
|
||||
[$($opcode)|*, _, _, _, _, _, _, _, _, _, _, _, _, $rest @ ..]
|
||||
};
|
||||
|
||||
($rest:ident, bbd, $($opcode:ident),*) => {
|
||||
// B B D1 D2 D3 D4 D5 D6 D7 D8
|
||||
[$($opcode)|*, _, _, _, _, _, _, _, _, _, _, $rest @ ..]
|
||||
};
|
||||
|
||||
($rest:ident, bbw, $($opcode:ident),*) => {
|
||||
// B B W1 W2 W3 W4
|
||||
[$($opcode)|*, _, _, _, _, _, _, $rest @ ..]
|
||||
};
|
||||
|
||||
($rest:ident, bb, $($opcode:ident),*) => {
|
||||
// B B
|
||||
[$($opcode)|*, _, _, $rest @ ..]
|
||||
};
|
||||
|
||||
($rest:ident, bd, $($opcode:ident),*) => {
|
||||
// B D1 D2 D3 D4 D5 D6 D7 D8
|
||||
[$($opcode)|*, _, _, _, _, _, _, _, _, _, $rest @ ..]
|
||||
};
|
||||
|
||||
($rest:ident, d, $($opcode:ident),*) => {
|
||||
// D1 D2 D3 D4 D5 D6 D7 D8
|
||||
[$($opcode)|*, _, _, _, _, _, _, _, _, $rest @ ..]
|
||||
};
|
||||
|
||||
($rest:ident, n, $($opcode:ident),*) => {
|
||||
[$($opcode)|*, $rest @ ..]
|
||||
};
|
||||
|
||||
($_0:ident, $($_1:ident),*) => {
|
||||
compile_error!("Invalid instruction type");
|
||||
}
|
||||
}
|
||||
|
||||
pub(crate) use {gen_valider, inst_chk};
|
||||
|
|
@ -1,165 +1,91 @@
|
|||
#![no_std]
|
||||
|
||||
mod gen_valider;
|
||||
pub type OpR = u8;
|
||||
|
||||
macro_rules! constmod {
|
||||
($vis:vis $mname:ident($repr:ty) {
|
||||
$(#![doc = $mdoc:literal])?
|
||||
$($cname:ident = $val:expr $(,$doc:literal)?;)*
|
||||
}) => {
|
||||
$(#[doc = $mdoc])?
|
||||
$vis mod $mname {
|
||||
pub type OpA = u64;
|
||||
pub type OpO = u32;
|
||||
pub type OpP = u16;
|
||||
|
||||
pub type OpB = u8;
|
||||
pub type OpH = u16;
|
||||
pub type OpW = u32;
|
||||
pub type OpD = u64;
|
||||
|
||||
/// # Safety
|
||||
/// Has to be valid to be decoded from bytecode.
|
||||
pub unsafe trait BytecodeItem {}
|
||||
macro_rules! define_items {
|
||||
($($name:ident ($($item:ident),* $(,)?)),* $(,)?) => {
|
||||
$(
|
||||
$(#[doc = $doc])?
|
||||
pub const $cname: $repr = $val;
|
||||
#[repr(packed)]
|
||||
pub struct $name($(pub $item),*);
|
||||
unsafe impl BytecodeItem for $name {}
|
||||
)*
|
||||
};
|
||||
}
|
||||
|
||||
define_items! {
|
||||
OpsRR (OpR, OpR ),
|
||||
OpsRRR (OpR, OpR, OpR ),
|
||||
OpsRRRR (OpR, OpR, OpR, OpR),
|
||||
OpsRRB (OpR, OpR, OpB ),
|
||||
OpsRRH (OpR, OpR, OpH ),
|
||||
OpsRRW (OpR, OpR, OpW ),
|
||||
OpsRD (OpR, OpD ),
|
||||
OpsRRD (OpR, OpR, OpD ),
|
||||
OpsRRAH (OpR, OpR, OpA, OpH),
|
||||
OpsRROH (OpR, OpR, OpO, OpH),
|
||||
OpsRRO (OpR, OpR, OpO ),
|
||||
OpsRRP (OpR, OpR, OpP ),
|
||||
}
|
||||
|
||||
unsafe impl BytecodeItem for OpA {}
|
||||
unsafe impl BytecodeItem for OpB {}
|
||||
unsafe impl BytecodeItem for OpO {}
|
||||
unsafe impl BytecodeItem for () {}
|
||||
|
||||
::with_builtin_macros::with_builtin! {
|
||||
let $spec = include_from_root!("instructions.in") in {
|
||||
/// Invoke macro with bytecode definition
|
||||
///
|
||||
/// # Format
|
||||
/// ```text
|
||||
/// Opcode, Mnemonic, Type, Docstring;
|
||||
/// ```
|
||||
///
|
||||
/// # Type
|
||||
/// ```text
|
||||
/// Types consist of letters meaning a single field
|
||||
/// | Type | Size (B) | Meaning |
|
||||
/// |:-----|:---------|:------------------------|
|
||||
/// | N | 0 | Empty |
|
||||
/// | R | 1 | Register |
|
||||
/// | A | 8 | Absolute address |
|
||||
/// | O | 4 | Relative address offset |
|
||||
/// | P | 2 | Relative address offset |
|
||||
/// | B | 1 | Immediate |
|
||||
/// | H | 2 | Immediate |
|
||||
/// | W | 4 | Immediate |
|
||||
/// | D | 8 | Immediate |
|
||||
/// ```
|
||||
#[macro_export]
|
||||
macro_rules! invoke_with_def {
|
||||
($macro:path) => {
|
||||
$macro! { $spec }
|
||||
};
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
macro_rules! gen_opcodes {
|
||||
($($opcode:expr, $mnemonic:ident, $_ty:ident, $doc:literal;)*) => {
|
||||
pub mod opcode {
|
||||
$(
|
||||
#[doc = $doc]
|
||||
pub const $mnemonic: u8 = $opcode;
|
||||
)*
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
#[allow(rustdoc::invalid_rust_codeblocks)]
|
||||
/// Invoke macro with bytecode definition
|
||||
/// # Input syntax
|
||||
/// ```no_run
|
||||
/// macro!(
|
||||
/// INSTRUCTION_TYPE(p0: TYPE, p1: TYPE, …)
|
||||
/// => [INSTRUCTION_A, INSTRUCTION_B, …],
|
||||
/// …
|
||||
/// );
|
||||
/// ```
|
||||
/// - Instruction type determines opcode-generic, instruction-type-specific
|
||||
/// function. Name: `i_param_INSTRUCTION_TYPE`
|
||||
/// - Per-instructions there will be generated opcode-specific functions calling the generic ones
|
||||
/// - Operand types
|
||||
/// - R: Register (u8)
|
||||
/// - I: Immediate
|
||||
/// - L: Memory load / store size (u16)
|
||||
/// - Other types are identity-mapped
|
||||
///
|
||||
/// # BRC special-case
|
||||
/// BRC's 3rd operand is plain byte, not a register. Encoding is the same, but for some cases it may matter.
|
||||
///
|
||||
/// Please, if you distinguish in your API between byte and register, special case this one.
|
||||
///
|
||||
/// Sorry for that :(
|
||||
#[macro_export]
|
||||
macro_rules! invoke_with_def {
|
||||
($macro:path) => {
|
||||
$macro!(
|
||||
bbbb(p0: R, p1: R, p2: R, p3: R)
|
||||
=> [DIR, DIRF, FMAF],
|
||||
bbb(p0: R, p1: R, p2: R)
|
||||
=> [ADD, SUB, MUL, AND, OR, XOR, SL, SR, SRS, CMP, CMPU, BRC, ADDF, SUBF, MULF],
|
||||
bbdh(p0: R, p1: R, p2: I, p3: L)
|
||||
=> [LD, ST],
|
||||
bbd(p0: R, p1: R, p2: I)
|
||||
=> [ADDI, MULI, ANDI, ORI, XORI, CMPI, CMPUI, BMC, JAL, JEQ, JNE, JLT, JGT, JLTU,
|
||||
JGTU, ADDFI, MULFI],
|
||||
bbw(p0: R, p1: R, p2: u32)
|
||||
=> [SLI, SRI, SRSI],
|
||||
bb(p0: R, p1: R)
|
||||
=> [NEG, NOT, CP, SWA, NEGF, ITF, FTI],
|
||||
bd(p0: R, p1: I)
|
||||
=> [LI],
|
||||
d(p0: I)
|
||||
=> [JMP],
|
||||
n()
|
||||
=> [UN, TX, NOP, ECALL],
|
||||
);
|
||||
};
|
||||
}
|
||||
|
||||
invoke_with_def!(gen_valider::gen_valider);
|
||||
|
||||
constmod!(pub opcode(u8) {
|
||||
//! Opcode constant module
|
||||
|
||||
UN = 0, "N; Raises a trap";
|
||||
TX = 1, "N; Terminate execution";
|
||||
NOP = 2, "N; Do nothing";
|
||||
|
||||
ADD = 3, "BBB; #0 ← #1 + #2";
|
||||
SUB = 4, "BBB; #0 ← #1 - #2";
|
||||
MUL = 5, "BBB; #0 ← #1 × #2";
|
||||
AND = 6, "BBB; #0 ← #1 & #2";
|
||||
OR = 7, "BBB; #0 ← #1 | #2";
|
||||
XOR = 8, "BBB; #0 ← #1 ^ #2";
|
||||
SL = 9, "BBB; #0 ← #1 « #2";
|
||||
SR = 10, "BBB; #0 ← #1 » #2";
|
||||
SRS = 11, "BBB; #0 ← #1 » #2 (signed)";
|
||||
CMP = 12, "BBB; #0 ← #1 <=> #2";
|
||||
CMPU = 13, "BBB; #0 ← #1 <=> #2 (unsigned)";
|
||||
DIR = 14, "BBBB; #0 ← #2 / #3, #1 ← #2 % #3";
|
||||
NEG = 15, "BB; #0 ← -#1";
|
||||
NOT = 16, "BB; #0 ← !#1";
|
||||
|
||||
ADDI = 17, "BBD; #0 ← #1 + imm #2";
|
||||
MULI = 18, "BBD; #0 ← #1 × imm #2";
|
||||
ANDI = 19, "BBD; #0 ← #1 & imm #2";
|
||||
ORI = 20, "BBD; #0 ← #1 | imm #2";
|
||||
XORI = 21, "BBD; #0 ← #1 ^ imm #2";
|
||||
SLI = 22, "BBW; #0 ← #1 « imm #2";
|
||||
SRI = 23, "BBW; #0 ← #1 » imm #2";
|
||||
SRSI = 24, "BBW; #0 ← #1 » imm #2 (signed)";
|
||||
CMPI = 25, "BBD; #0 ← #1 <=> imm #2";
|
||||
CMPUI = 26, "BBD; #0 ← #1 <=> imm #2 (unsigned)";
|
||||
|
||||
CP = 27, "BB; Copy #0 ← #1";
|
||||
SWA = 28, "BB; Swap #0 and #1";
|
||||
LI = 29, "BD; #0 ← imm #1";
|
||||
LD = 30, "BBDB; #0 ← [#1 + imm #3], imm #4 bytes, overflowing";
|
||||
ST = 31, "BBDB; [#1 + imm #3] ← #0, imm #4 bytes, overflowing";
|
||||
BMC = 32, "BBD; [#0] ← [#1], imm #2 bytes";
|
||||
BRC = 33, "BBB; #0 ← #1, imm #2 registers";
|
||||
|
||||
JMP = 34, "D; Unconditional, non-linking absolute jump";
|
||||
JAL = 35, "BD; Copy PC to #0 and unconditional jump [#1 + imm #2]";
|
||||
JEQ = 36, "BBD; if #0 = #1 → jump imm #2";
|
||||
JNE = 37, "BBD; if #0 ≠ #1 → jump imm #2";
|
||||
JLT = 38, "BBD; if #0 < #1 → jump imm #2";
|
||||
JGT = 39, "BBD; if #0 > #1 → jump imm #2";
|
||||
JLTU = 40, "BBD; if #0 < #1 → jump imm #2 (unsigned)";
|
||||
JGTU = 41, "BBD; if #0 > #1 → jump imm #2 (unsigned)";
|
||||
ECALL = 42, "N; Issue system call";
|
||||
|
||||
ADDF = 43, "BBB; #0 ← #1 +. #2";
|
||||
SUBF = 44, "BBB; #0 ← #1 -. #2";
|
||||
MULF = 45, "BBB; #0 ← #1 +. #2";
|
||||
DIRF = 46, "BBBB; #0 ← #2 / #3, #1 ← #2 % #3";
|
||||
FMAF = 47, "BBBB; #0 ← (#1 * #2) + #3";
|
||||
NEGF = 48, "BB; #0 ← -#1";
|
||||
ITF = 49, "BB; #0 ← #1 as float";
|
||||
FTI = 50, "BB; #0 ← #1 as int";
|
||||
|
||||
ADDFI = 51, "BBD; #0 ← #1 +. imm #2";
|
||||
MULFI = 52, "BBD; #0 ← #1 *. imm #2";
|
||||
});
|
||||
|
||||
#[repr(packed)]
|
||||
pub struct ParamBBBB(pub u8, pub u8, pub u8, pub u8);
|
||||
#[repr(packed)]
|
||||
pub struct ParamBBB(pub u8, pub u8, pub u8);
|
||||
#[repr(packed)]
|
||||
pub struct ParamBBDH(pub u8, pub u8, pub u64, pub u16);
|
||||
#[repr(packed)]
|
||||
pub struct ParamBBD(pub u8, pub u8, pub u64);
|
||||
#[repr(packed)]
|
||||
pub struct ParamBBW(pub u8, pub u8, pub u32);
|
||||
#[repr(packed)]
|
||||
pub struct ParamBB(pub u8, pub u8);
|
||||
#[repr(packed)]
|
||||
pub struct ParamBD(pub u8, pub u64);
|
||||
|
||||
/// # Safety
|
||||
/// Has to be valid to be decoded from bytecode.
|
||||
pub unsafe trait ProgramVal {}
|
||||
unsafe impl ProgramVal for ParamBBBB {}
|
||||
unsafe impl ProgramVal for ParamBBB {}
|
||||
unsafe impl ProgramVal for ParamBBDH {}
|
||||
unsafe impl ProgramVal for ParamBBD {}
|
||||
unsafe impl ProgramVal for ParamBBW {}
|
||||
unsafe impl ProgramVal for ParamBB {}
|
||||
unsafe impl ProgramVal for ParamBD {}
|
||||
unsafe impl ProgramVal for u64 {}
|
||||
unsafe impl ProgramVal for u8 {} // Opcode
|
||||
unsafe impl ProgramVal for () {}
|
||||
invoke_with_def!(gen_opcodes);
|
||||
|
|
|
|||
|
|
@ -14,7 +14,7 @@
|
|||
#![cfg_attr(feature = "nightly", feature(fn_align))]
|
||||
#![warn(missing_docs)]
|
||||
|
||||
use mem::{Memory, Address};
|
||||
use mem::{Address, Memory};
|
||||
|
||||
#[cfg(feature = "alloc")]
|
||||
extern crate alloc;
|
||||
|
|
@ -23,8 +23,8 @@ pub mod mem;
|
|||
pub mod value;
|
||||
|
||||
mod bmc;
|
||||
mod vmrun;
|
||||
mod utils;
|
||||
mod vmrun;
|
||||
|
||||
use {bmc::BlockCopier, value::Value};
|
||||
|
||||
|
|
|
|||
|
|
@ -1,83 +0,0 @@
|
|||
use hbvm::mem::Address;
|
||||
|
||||
use {
|
||||
hbbytecode::valider::validate,
|
||||
hbvm::{
|
||||
mem::{
|
||||
softpaging::{paging::PageTable, HandlePageFault, PageSize, SoftPagedMem},
|
||||
MemoryAccessReason,
|
||||
},
|
||||
Vm,
|
||||
},
|
||||
std::io::{stdin, Read},
|
||||
};
|
||||
|
||||
fn main() -> Result<(), Box<dyn std::error::Error>> {
|
||||
let mut prog = vec![];
|
||||
stdin().read_to_end(&mut prog)?;
|
||||
|
||||
if let Err(e) = validate(&prog) {
|
||||
eprintln!("Program validation error: {e:?}");
|
||||
return Ok(());
|
||||
} else {
|
||||
unsafe {
|
||||
let mut vm = Vm::<_, 0>::new(
|
||||
SoftPagedMem::<_, true> {
|
||||
pf_handler: TestTrapHandler,
|
||||
program: &prog,
|
||||
root_pt: Box::into_raw(Default::default()),
|
||||
icache: Default::default(),
|
||||
},
|
||||
Address::new(4),
|
||||
);
|
||||
let data = {
|
||||
let ptr = std::alloc::alloc_zeroed(std::alloc::Layout::from_size_align_unchecked(
|
||||
4096, 4096,
|
||||
));
|
||||
if ptr.is_null() {
|
||||
panic!("Alloc error tbhl");
|
||||
}
|
||||
ptr
|
||||
};
|
||||
|
||||
vm.memory
|
||||
.map(
|
||||
data,
|
||||
Address::new(8192),
|
||||
hbvm::mem::softpaging::paging::Permission::Write,
|
||||
PageSize::Size4K,
|
||||
)
|
||||
.unwrap();
|
||||
|
||||
println!("Program interrupt: {:?}", vm.run());
|
||||
println!("{:?}", vm.registers);
|
||||
|
||||
std::alloc::dealloc(
|
||||
data,
|
||||
std::alloc::Layout::from_size_align_unchecked(4096, 4096),
|
||||
);
|
||||
vm.memory.unmap(Address::new(8192)).unwrap();
|
||||
let _ = Box::from_raw(vm.memory.root_pt);
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub fn time() -> u32 {
|
||||
9
|
||||
}
|
||||
|
||||
#[derive(Default)]
|
||||
struct TestTrapHandler;
|
||||
impl HandlePageFault for TestTrapHandler {
|
||||
fn page_fault(
|
||||
&mut self,
|
||||
_: MemoryAccessReason,
|
||||
_: &mut PageTable,
|
||||
_: Address,
|
||||
_: PageSize,
|
||||
_: *mut u8,
|
||||
) -> bool {
|
||||
false
|
||||
}
|
||||
}
|
||||
|
|
@ -23,6 +23,18 @@ impl Address {
|
|||
Self(self.0.saturating_sub(rhs.cast_u64()))
|
||||
}
|
||||
|
||||
/// Wrapping integer addition. Computes self + rhs, wrapping the numeric bounds.
|
||||
#[inline]
|
||||
pub fn wrapping_add<T: AddressOp>(self, rhs: T) -> Self {
|
||||
Self(self.0.wrapping_add(rhs.cast_u64()))
|
||||
}
|
||||
|
||||
/// Wrapping integer subtraction. Computes self + rhs, wrapping the numeric bounds.
|
||||
#[inline]
|
||||
pub fn wrapping_sub<T: AddressOp>(self, rhs: T) -> Self {
|
||||
Self(self.0.wrapping_sub(rhs.cast_u64()))
|
||||
}
|
||||
|
||||
/// Cast or if smaller, truncate to [`usize`]
|
||||
pub fn truncate_usize(self) -> usize {
|
||||
self.0 as _
|
||||
|
|
|
|||
|
|
@ -2,11 +2,11 @@
|
|||
|
||||
pub mod softpaging;
|
||||
|
||||
mod addr;
|
||||
pub(crate) mod addr;
|
||||
|
||||
pub use addr::Address;
|
||||
|
||||
use {crate::utils::impl_display, hbbytecode::ProgramVal};
|
||||
use {crate::utils::impl_display, hbbytecode::BytecodeItem};
|
||||
|
||||
/// Load-store memory access
|
||||
pub trait Memory {
|
||||
|
|
@ -36,13 +36,13 @@ pub trait Memory {
|
|||
///
|
||||
/// # Safety
|
||||
/// - Data read have to be valid
|
||||
unsafe fn prog_read<T: ProgramVal>(&mut self, addr: Address) -> Option<T>;
|
||||
unsafe fn prog_read<T: BytecodeItem>(&mut self, addr: Address) -> Option<T>;
|
||||
|
||||
/// Read from program memory to exectue
|
||||
///
|
||||
/// # Safety
|
||||
/// - You have to be really sure that these bytes are there, understand?
|
||||
unsafe fn prog_read_unchecked<T: ProgramVal>(&mut self, addr: Address) -> T;
|
||||
unsafe fn prog_read_unchecked<T: BytecodeItem>(&mut self, addr: Address) -> T;
|
||||
}
|
||||
|
||||
/// Unhandled load access trap
|
||||
|
|
|
|||
|
|
@ -2,8 +2,6 @@
|
|||
//!
|
||||
//! Have fun
|
||||
|
||||
use crate::mem::Address;
|
||||
|
||||
use {
|
||||
super::{
|
||||
bmc::BlockCopier,
|
||||
|
|
@ -11,9 +9,11 @@ use {
|
|||
value::{Value, ValueVariant},
|
||||
Vm, VmRunError, VmRunOk,
|
||||
},
|
||||
crate::mem::{addr::AddressOp, Address},
|
||||
core::{cmp::Ordering, mem::size_of, ops},
|
||||
hbbytecode::{
|
||||
ParamBB, ParamBBB, ParamBBBB, ParamBBD, ParamBBDH, ParamBBW, ParamBD, ProgramVal,
|
||||
BytecodeItem, OpA, OpO, OpsRD, OpsRR, OpsRRAH, OpsRRB, OpsRRD, OpsRRH, OpsRRO, OpsRROH,
|
||||
OpsRRP, OpsRRR, OpsRRRR, OpsRRW,
|
||||
},
|
||||
};
|
||||
|
||||
|
|
@ -70,14 +70,14 @@ where
|
|||
XOR => self.binary_op::<u64>(ops::BitXor::bitxor),
|
||||
SL => self.binary_op(|l, r| u64::wrapping_shl(l, r as u32)),
|
||||
SR => self.binary_op(|l, r| u64::wrapping_shr(l, r as u32)),
|
||||
SRS => self.binary_op(|l, r| i64::wrapping_shl(l, r as u32)),
|
||||
SRS => self.binary_op(|l: u64, r| i64::wrapping_shl(l as i64, r as u32) as u64),
|
||||
CMP => {
|
||||
// Compare a0 <=> a1
|
||||
// < → 0
|
||||
// > → 1
|
||||
// = → 2
|
||||
|
||||
let ParamBBB(tg, a0, a1) = self.decode();
|
||||
let OpsRRR(tg, a0, a1) = self.decode();
|
||||
self.write_reg(
|
||||
tg,
|
||||
self.read_reg(a0)
|
||||
|
|
@ -89,7 +89,7 @@ where
|
|||
}
|
||||
CMPU => {
|
||||
// Unsigned comparsion
|
||||
let ParamBBB(tg, a0, a1) = self.decode();
|
||||
let OpsRRR(tg, a0, a1) = self.decode();
|
||||
self.write_reg(
|
||||
tg,
|
||||
self.read_reg(a0)
|
||||
|
|
@ -101,23 +101,12 @@ where
|
|||
}
|
||||
NOT => {
|
||||
// Logical negation
|
||||
let ParamBB(tg, a0) = self.decode();
|
||||
let OpsRR(tg, a0) = self.decode();
|
||||
self.write_reg(tg, !self.read_reg(a0).cast::<u64>());
|
||||
}
|
||||
NEG => {
|
||||
// Bitwise negation
|
||||
let ParamBB(tg, a0) = self.decode();
|
||||
self.write_reg(
|
||||
tg,
|
||||
match self.read_reg(a0).cast::<u64>() {
|
||||
0 => 1_u64,
|
||||
_ => 0,
|
||||
},
|
||||
);
|
||||
}
|
||||
DIR => {
|
||||
// Fused Division-Remainder
|
||||
let ParamBBBB(dt, rt, a0, a1) = self.decode();
|
||||
let OpsRRRR(dt, rt, a0, a1) = self.decode();
|
||||
let a0 = self.read_reg(a0).cast::<u64>();
|
||||
let a1 = self.read_reg(a1).cast::<u64>();
|
||||
self.write_reg(dt, a0.checked_div(a1).unwrap_or(u64::MAX));
|
||||
|
|
@ -132,7 +121,7 @@ where
|
|||
SRI => self.binary_op_ims(u64::wrapping_shr),
|
||||
SRSI => self.binary_op_ims(i64::wrapping_shr),
|
||||
CMPI => {
|
||||
let ParamBBD(tg, a0, imm) = self.decode();
|
||||
let OpsRRD(tg, a0, imm) = self.decode();
|
||||
self.write_reg(
|
||||
tg,
|
||||
self.read_reg(a0)
|
||||
|
|
@ -142,16 +131,16 @@ where
|
|||
);
|
||||
}
|
||||
CMPUI => {
|
||||
let ParamBBD(tg, a0, imm) = self.decode();
|
||||
let OpsRRD(tg, a0, imm) = self.decode();
|
||||
self.write_reg(tg, self.read_reg(a0).cast::<u64>().cmp(&imm) as i64);
|
||||
}
|
||||
CP => {
|
||||
let ParamBB(tg, a0) = self.decode();
|
||||
let OpsRR(tg, a0) = self.decode();
|
||||
self.write_reg(tg, self.read_reg(a0));
|
||||
}
|
||||
SWA => {
|
||||
// Swap registers
|
||||
let ParamBB(r0, r1) = self.decode();
|
||||
let OpsRR(r0, r1) = self.decode();
|
||||
match (r0, r1) {
|
||||
(0, 0) => (),
|
||||
(dst, 0) | (0, dst) => self.write_reg(dst, 0_u64),
|
||||
|
|
@ -164,12 +153,16 @@ where
|
|||
}
|
||||
}
|
||||
LI => {
|
||||
let ParamBD(tg, imm) = self.decode();
|
||||
let OpsRD(tg, imm) = self.decode();
|
||||
self.write_reg(tg, imm);
|
||||
}
|
||||
LRA => {
|
||||
let OpsRRO(tg, reg, imm) = self.decode();
|
||||
self.write_reg(tg, self.rel_addr(reg, imm).get());
|
||||
}
|
||||
LD => {
|
||||
// Load. If loading more than register size, continue on adjecent registers
|
||||
let ParamBBDH(dst, base, off, count) = self.decode();
|
||||
let OpsRRAH(dst, base, off, count) = self.decode();
|
||||
let n: u8 = match dst {
|
||||
0 => 1,
|
||||
_ => 0,
|
||||
|
|
@ -181,29 +174,67 @@ where
|
|||
.as_mut_ptr()
|
||||
.add(usize::from(dst) + usize::from(n))
|
||||
.cast(),
|
||||
usize::from(count).saturating_sub(n.into()),
|
||||
usize::from(count).wrapping_sub(n.into()),
|
||||
)?;
|
||||
}
|
||||
ST => {
|
||||
// Store. Same rules apply as to LD
|
||||
let ParamBBDH(dst, base, off, count) = self.decode();
|
||||
let OpsRRAH(dst, base, off, count) = self.decode();
|
||||
self.memory.store(
|
||||
self.ldst_addr_uber(dst, base, off, count, 0)?,
|
||||
self.registers.as_ptr().add(usize::from(dst)).cast(),
|
||||
count.into(),
|
||||
)?;
|
||||
}
|
||||
LDR => {
|
||||
let OpsRROH(dst, base, off, count) = self.decode();
|
||||
let n: u8 = match dst {
|
||||
0 => 1,
|
||||
_ => 0,
|
||||
};
|
||||
|
||||
self.memory.load(
|
||||
self.ldst_addr_uber(
|
||||
dst,
|
||||
base,
|
||||
u64::from(off).wrapping_add(self.pc.get()),
|
||||
count,
|
||||
n,
|
||||
)?,
|
||||
self.registers
|
||||
.as_mut_ptr()
|
||||
.add(usize::from(dst) + usize::from(n))
|
||||
.cast(),
|
||||
usize::from(count).wrapping_sub(n.into()),
|
||||
)?;
|
||||
}
|
||||
STR => {
|
||||
let OpsRROH(dst, base, off, count) = self.decode();
|
||||
self.memory.store(
|
||||
self.ldst_addr_uber(
|
||||
dst,
|
||||
base,
|
||||
u64::from(off).wrapping_add(self.pc.get()),
|
||||
count,
|
||||
0,
|
||||
)?,
|
||||
self.registers.as_ptr().add(usize::from(dst)).cast(),
|
||||
count.into(),
|
||||
)?;
|
||||
}
|
||||
BMC => {
|
||||
const INS_SIZE: usize = size_of::<OpsRRH>() + 1;
|
||||
|
||||
// Block memory copy
|
||||
match if let Some(copier) = &mut self.copier {
|
||||
// There is some copier, poll.
|
||||
copier.poll(&mut self.memory)
|
||||
} else {
|
||||
// There is none, make one!
|
||||
let ParamBBD(src, dst, count) = self.decode();
|
||||
let OpsRRH(src, dst, count) = self.decode();
|
||||
|
||||
// So we are still on BMC on next cycle
|
||||
self.pc -= size_of::<ParamBBD>() + 1;
|
||||
self.pc -= INS_SIZE;
|
||||
|
||||
self.copier = Some(BlockCopier::new(
|
||||
Address::new(self.read_reg(src).cast()),
|
||||
|
|
@ -219,12 +250,12 @@ where
|
|||
// We are done, shift program counter
|
||||
core::task::Poll::Ready(Ok(())) => {
|
||||
self.copier = None;
|
||||
self.pc += size_of::<ParamBBD>() + 1;
|
||||
self.pc += INS_SIZE;
|
||||
}
|
||||
// Error, shift program counter (for consistency)
|
||||
// and yield error
|
||||
core::task::Poll::Ready(Err(e)) => {
|
||||
self.pc += size_of::<ParamBBD>() + 1;
|
||||
self.pc += INS_SIZE;
|
||||
return Err(e.into());
|
||||
}
|
||||
// Not done yet, proceed to next cycle
|
||||
|
|
@ -233,7 +264,7 @@ where
|
|||
}
|
||||
BRC => {
|
||||
// Block register copy
|
||||
let ParamBBB(src, dst, count) = self.decode();
|
||||
let OpsRRB(src, dst, count) = self.decode();
|
||||
if src.checked_add(count).is_none() || dst.checked_add(count).is_none() {
|
||||
return Err(VmRunError::RegOutOfBounds);
|
||||
}
|
||||
|
|
@ -244,21 +275,25 @@ where
|
|||
usize::from(count),
|
||||
);
|
||||
}
|
||||
JMP => self.pc = Address::new(self.decode::<u64>()),
|
||||
JMP => self.pc = Address::new(self.decode::<OpA>()),
|
||||
JMPR => self.pc = self.pc.wrapping_add(self.decode::<OpO>()),
|
||||
JAL => {
|
||||
// Jump and link. Save PC after this instruction to
|
||||
// specified register and jump to reg + offset.
|
||||
let ParamBBD(save, reg, offset) = self.decode();
|
||||
let OpsRRW(save, reg, offset) = self.decode();
|
||||
self.write_reg(save, self.pc.get());
|
||||
self.pc =
|
||||
Address::new(self.read_reg(reg).cast::<u64>().saturating_add(offset));
|
||||
self.pc = Address::new(
|
||||
self.read_reg(reg).cast::<u64>().wrapping_add(offset.into()),
|
||||
);
|
||||
}
|
||||
// Conditional jumps, jump only to immediates
|
||||
JEQ => self.cond_jmp::<u64>(Ordering::Equal),
|
||||
JNE => {
|
||||
let ParamBBD(a0, a1, jt) = self.decode();
|
||||
let OpsRRP(a0, a1, ja) = self.decode();
|
||||
if self.read_reg(a0).cast::<u64>() != self.read_reg(a1).cast::<u64>() {
|
||||
self.pc = Address::new(jt);
|
||||
self.pc = Address::new(
|
||||
((self.pc.get() as i64).wrapping_add(ja as i64)) as u64,
|
||||
)
|
||||
}
|
||||
}
|
||||
JLT => self.cond_jmp::<u64>(Ordering::Less),
|
||||
|
|
@ -278,14 +313,14 @@ where
|
|||
SUBF => self.binary_op::<f64>(ops::Sub::sub),
|
||||
MULF => self.binary_op::<f64>(ops::Mul::mul),
|
||||
DIRF => {
|
||||
let ParamBBBB(dt, rt, a0, a1) = self.decode();
|
||||
let OpsRRRR(dt, rt, a0, a1) = self.decode();
|
||||
let a0 = self.read_reg(a0).cast::<f64>();
|
||||
let a1 = self.read_reg(a1).cast::<f64>();
|
||||
self.write_reg(dt, a0 / a1);
|
||||
self.write_reg(rt, a0 % a1);
|
||||
}
|
||||
FMAF => {
|
||||
let ParamBBBB(dt, a0, a1, a2) = self.decode();
|
||||
let OpsRRRR(dt, a0, a1, a2) = self.decode();
|
||||
self.write_reg(
|
||||
dt,
|
||||
self.read_reg(a0).cast::<f64>() * self.read_reg(a1).cast::<f64>()
|
||||
|
|
@ -293,15 +328,15 @@ where
|
|||
);
|
||||
}
|
||||
NEGF => {
|
||||
let ParamBB(dt, a0) = self.decode();
|
||||
let OpsRR(dt, a0) = self.decode();
|
||||
self.write_reg(dt, -self.read_reg(a0).cast::<f64>());
|
||||
}
|
||||
ITF => {
|
||||
let ParamBB(dt, a0) = self.decode();
|
||||
let OpsRR(dt, a0) = self.decode();
|
||||
self.write_reg(dt, self.read_reg(a0).cast::<i64>() as f64);
|
||||
}
|
||||
FTI => {
|
||||
let ParamBB(dt, a0) = self.decode();
|
||||
let OpsRR(dt, a0) = self.decode();
|
||||
self.write_reg(dt, self.read_reg(a0).cast::<f64>() as i64);
|
||||
}
|
||||
ADDFI => self.binary_op_imm::<f64>(ops::Add::add),
|
||||
|
|
@ -321,7 +356,7 @@ where
|
|||
|
||||
/// Decode instruction operands
|
||||
#[inline(always)]
|
||||
unsafe fn decode<T: ProgramVal>(&mut self) -> T {
|
||||
unsafe fn decode<T: BytecodeItem>(&mut self) -> T {
|
||||
let pc1 = self.pc + 1_u64;
|
||||
let data = self.memory.prog_read_unchecked::<T>(pc1 as _);
|
||||
self.pc += 1 + size_of::<T>();
|
||||
|
|
@ -331,7 +366,7 @@ where
|
|||
/// Perform binary operating over two registers
|
||||
#[inline(always)]
|
||||
unsafe fn binary_op<T: ValueVariant>(&mut self, op: impl Fn(T, T) -> T) {
|
||||
let ParamBBB(tg, a0, a1) = self.decode();
|
||||
let OpsRRR(tg, a0, a1) = self.decode();
|
||||
self.write_reg(
|
||||
tg,
|
||||
op(self.read_reg(a0).cast::<T>(), self.read_reg(a1).cast::<T>()),
|
||||
|
|
@ -341,7 +376,7 @@ where
|
|||
/// Perform binary operation over register and immediate
|
||||
#[inline(always)]
|
||||
unsafe fn binary_op_imm<T: ValueVariant>(&mut self, op: impl Fn(T, T) -> T) {
|
||||
let ParamBBD(tg, reg, imm) = self.decode();
|
||||
let OpsRRD(tg, reg, imm) = self.decode();
|
||||
self.write_reg(
|
||||
tg,
|
||||
op(self.read_reg(reg).cast::<T>(), Value::from(imm).cast::<T>()),
|
||||
|
|
@ -351,36 +386,44 @@ where
|
|||
/// Perform binary operation over register and shift immediate
|
||||
#[inline(always)]
|
||||
unsafe fn binary_op_ims<T: ValueVariant>(&mut self, op: impl Fn(T, u32) -> T) {
|
||||
let ParamBBW(tg, reg, imm) = self.decode();
|
||||
let OpsRRW(tg, reg, imm) = self.decode();
|
||||
self.write_reg(tg, op(self.read_reg(reg).cast::<T>(), imm));
|
||||
}
|
||||
|
||||
/// Jump at `#3` if ordering on `#0 <=> #1` is equal to expected
|
||||
/// Compute address relative to program counter an register value
|
||||
#[inline(always)]
|
||||
fn rel_addr(&self, reg: u8, imm: impl AddressOp) -> Address {
|
||||
self.pc
|
||||
.wrapping_add(self.read_reg(reg).cast::<u64>())
|
||||
.wrapping_add(imm)
|
||||
}
|
||||
|
||||
/// Jump at `PC + #3` if ordering on `#0 <=> #1` is equal to expected
|
||||
#[inline(always)]
|
||||
unsafe fn cond_jmp<T: ValueVariant + Ord>(&mut self, expected: Ordering) {
|
||||
let ParamBBD(a0, a1, ja) = self.decode();
|
||||
let OpsRRP(a0, a1, ja) = self.decode();
|
||||
if self
|
||||
.read_reg(a0)
|
||||
.cast::<T>()
|
||||
.cmp(&self.read_reg(a1).cast::<T>())
|
||||
== expected
|
||||
{
|
||||
self.pc = Address::new(ja);
|
||||
self.pc = Address::new(((self.pc.get() as i64).wrapping_add(ja as i64)) as u64);
|
||||
}
|
||||
}
|
||||
|
||||
/// Read register
|
||||
#[inline(always)]
|
||||
unsafe fn read_reg(&self, n: u8) -> Value {
|
||||
*self.registers.get_unchecked(n as usize)
|
||||
fn read_reg(&self, n: u8) -> Value {
|
||||
unsafe { *self.registers.get_unchecked(n as usize) }
|
||||
}
|
||||
|
||||
/// Write a register.
|
||||
/// Writing to register 0 is no-op.
|
||||
#[inline(always)]
|
||||
unsafe fn write_reg(&mut self, n: u8, value: impl Into<Value>) {
|
||||
fn write_reg(&mut self, n: u8, value: impl Into<Value>) {
|
||||
if n != 0 {
|
||||
*self.registers.get_unchecked_mut(n as usize) = value.into();
|
||||
unsafe { *self.registers.get_unchecked_mut(n as usize) = value.into() };
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
7
hbxrt/Cargo.toml
Normal file
7
hbxrt/Cargo.toml
Normal file
|
|
@ -0,0 +1,7 @@
|
|||
[package]
|
||||
name = "hbxrt"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
[dependencies]
|
||||
hbvm.path = "../hbvm"
|
||||
11
hbxrt/src/main.rs
Normal file
11
hbxrt/src/main.rs
Normal file
|
|
@ -0,0 +1,11 @@
|
|||
use std::io::{stdin, Read};
|
||||
|
||||
/// Holey Bytes Experimental Runtime
|
||||
|
||||
fn main() -> Result<(), Box<dyn std::error::Error>> {
|
||||
let mut prog = vec![];
|
||||
stdin().read_to_end(&mut prog)?;
|
||||
|
||||
eprintln!("WARNING! Bytecode valider has not been yet implemented and running program can lead to undefiend behaviour.");
|
||||
Ok(())
|
||||
}
|
||||
69
spec.md
69
spec.md
|
|
@ -148,6 +148,12 @@
|
|||
|:------:|:----:|:--------------:|
|
||||
| 29 | LI | Load immediate |
|
||||
|
||||
### Load relative address
|
||||
- Type BBW
|
||||
| Opcode | Name | Action |
|
||||
|:------:|:----:|:-----------------------:|
|
||||
| 30 | LRA | `#0 ← #1 + imm #2 + PC` |
|
||||
|
||||
## Memory operations
|
||||
- Type BBDH
|
||||
- If loaded/store value exceeds one register size, continue accessing following registers
|
||||
|
|
@ -155,8 +161,15 @@
|
|||
### Load / Store
|
||||
| Opcode | Name | Action |
|
||||
|:------:|:----:|:---------------------------------------:|
|
||||
| 30 | LD | `#0 ← [#1 + imm #3], copy imm #4 bytes` |
|
||||
| 31 | ST | `[#1 + imm #3] ← #0, copy imm #4 bytes` |
|
||||
| 31 | LD | `#0 ← [#1 + imm #2], copy imm #3 bytes` |
|
||||
| 32 | ST | `[#1 + imm #2] ← #0, copy imm #3 bytes` |
|
||||
|
||||
### PC relative Load / Store
|
||||
- Type BBDW
|
||||
| Opcode | Name | Action |
|
||||
|:------:|:----:|:--------------------------------------------:|
|
||||
| 33 | LDR | `#0 ← [#1 + imm #2 + PC], copy imm #3 bytes` |
|
||||
| 34 | STR | `[#1 + imm #2 + PC] ← #0, copy imm #3 bytes` |
|
||||
|
||||
## Block copy
|
||||
- Block copy source and target can overlap
|
||||
|
|
@ -166,7 +179,7 @@
|
|||
|
||||
| Opcode | Name | Action |
|
||||
|:------:|:----:|:--------------------------------:|
|
||||
| 32 | BMC | `[#1] ← [#0], copy imm #2 bytes` |
|
||||
| 35 | BMC | `[#1] ← [#0], copy imm #2 bytes` |
|
||||
|
||||
### Register copy
|
||||
- Type BBB
|
||||
|
|
@ -174,42 +187,44 @@
|
|||
|
||||
| Opcode | Name | Action |
|
||||
|:------:|:----:|:--------------------------------:|
|
||||
| 33 | BRC | `#1 ← #0, copy imm #2 registers` |
|
||||
| 36 | BRC | `#1 ← #0, copy imm #2 registers` |
|
||||
|
||||
## Control flow
|
||||
|
||||
### Unconditional jump
|
||||
- Type D
|
||||
| Opcode | Name | Action |
|
||||
|:------:|:----:|:-------------------------------:|
|
||||
| 34 | JMP | Unconditional, non-linking jump |
|
||||
|:------:|:----:|:-------------------------------------------:|
|
||||
| 37 | JMP | Unconditional, non-linking jump |
|
||||
| 38 | JMPR | Jump at address relative to program counter |
|
||||
|
||||
### Unconditional linking jump
|
||||
- Type BBD
|
||||
|
||||
| Opcode | Name | Action |
|
||||
|:------:|:----:|:--------------------------------------------------:|
|
||||
| 35 | JAL | Save PC past JAL to `#0` and jump at `#1 + imm #2` |
|
||||
|:------:|:----:|:-------------------------------------------------------:|
|
||||
| 39 | JAL | Save PC past JAL to `#0` and jump at `#1 + imm #2` |
|
||||
| 40 | JALR | Save PC past JAL to `#0` and jump at `#1 + imm #2 + PC` |
|
||||
|
||||
### Conditional jumps
|
||||
- Type BBD
|
||||
- Jump at `imm #2` if `#0 <op> #1`
|
||||
- Type BBH
|
||||
- Jump at `PC + imm #2` if `#0 <op> #1`
|
||||
|
||||
| Opcode | Name | Comparsion |
|
||||
|:------:|:----:|:------------:|
|
||||
| 36 | JEQ | = |
|
||||
| 37 | JNE | ≠ |
|
||||
| 38 | JLT | < (signed) |
|
||||
| 39 | JGT | > (signed) |
|
||||
| 40 | JLTU | < (unsigned) |
|
||||
| 41 | JGTU | > (unsigned) |
|
||||
| 41 | JEQ | = |
|
||||
| 42 | JNE | ≠ |
|
||||
| 43 | JLT | < (signed) |
|
||||
| 44 | JGT | > (signed) |
|
||||
| 45 | JLTU | < (unsigned) |
|
||||
| 46 | JGTU | > (unsigned) |
|
||||
|
||||
### Environment call
|
||||
- Type N
|
||||
|
||||
| Opcode | Name | Action |
|
||||
|:------:|:-----:|:-------------------------------------:|
|
||||
| 42 | ECALL | Cause an trap to the host environment |
|
||||
| 47 | ECALL | Cause an trap to the host environment |
|
||||
|
||||
## Floating point operations
|
||||
- Type BBB
|
||||
|
|
@ -217,29 +232,29 @@
|
|||
|
||||
| Opcode | Name | Action |
|
||||
|:------:|:----:|:--------------:|
|
||||
| 43 | ADDF | Addition |
|
||||
| 44 | SUBF | Subtraction |
|
||||
| 45 | MULF | Multiplication |
|
||||
| 48 | ADDF | Addition |
|
||||
| 49 | SUBF | Subtraction |
|
||||
| 50 | MULF | Multiplication |
|
||||
|
||||
### Division-remainder
|
||||
- Type BBBB
|
||||
|
||||
| Opcode | Name | Action |
|
||||
|:------:|:----:|:-------------------------:|
|
||||
| 46 | DIRF | Same as for integer `DIR` |
|
||||
| 51 | DIRF | Same as for integer `DIR` |
|
||||
|
||||
### Fused Multiply-Add
|
||||
- Type BBBB
|
||||
|
||||
| Opcode | Name | Action |
|
||||
|:------:|:----:|:---------------------:|
|
||||
| 47 | FMAF | `#0 ← (#1 * #2) + #3` |
|
||||
| 52 | FMAF | `#0 ← (#1 * #2) + #3` |
|
||||
|
||||
### Negation
|
||||
- Type BB
|
||||
| Opcode | Name | Action |
|
||||
|:------:|:----:|:----------:|
|
||||
| 48 | NEGF | `#0 ← -#1` |
|
||||
| 53 | NEGF | `#0 ← -#1` |
|
||||
|
||||
### Conversion
|
||||
- Type BB
|
||||
|
|
@ -248,8 +263,8 @@
|
|||
|
||||
| Opcode | Name | Action |
|
||||
|:------:|:----:|:------------:|
|
||||
| 49 | ITF | Int to Float |
|
||||
| 50 | FTI | Float to Int |
|
||||
| 54 | ITF | Int to Float |
|
||||
| 55 | FTI | Float to Int |
|
||||
|
||||
## Floating point immediate operations
|
||||
- Type BBD
|
||||
|
|
@ -257,8 +272,8 @@
|
|||
|
||||
| Opcode | Name | Action |
|
||||
|:------:|:-----:|:--------------:|
|
||||
| 51 | ADDFI | Addition |
|
||||
| 52 | MULFI | Multiplication |
|
||||
| 56 | ADDFI | Addition |
|
||||
| 57 | MULFI | Multiplication |
|
||||
|
||||
# Registers
|
||||
- There is 255 registers + one zero register (with index 0)
|
||||
|
|
|
|||
Loading…
Reference in a new issue