Daniel Samson
8754d4e46a
The source layout now mirrors the runtime filesystem hierarchy
(docs/danos-file-system-hierarchy-FSH.md): what lives under system/ in the
source is what a running danos represents under /system. Each service and
driver is a sub-project directory that is its own Zig module — cross-project
references go by module name, never by a path into another project's files.
Moves (all git mv, history preserved):
- src/ -> system/ (danos internals; the self-representation)
root.zig -> danos.zig (the kernel<->user contract module)
kernel/arch/ -> kernel/architecture/ (arch -> architecture)
device/ -> devices/ (what /system/devices reflects)
boot/ -> /boot (the loaders, top level)
- sbin/ -> split by role:
init, vfs -> system/services/<name>/<name>.zig
hpetd, busd -> system/drivers/<name>/<name>.zig
vfs-test -> system/services/vfs/vfs-test.zig (inside the vfs project)
- lib/ -> library/runtime/ (room for other libraries beside runtime)
The VFS wire protocol becomes its own module, system/services/vfs/protocol.zig
("vfs-protocol"): the vfs sub-project exposes its interface, and the runtime's
file layer imports it by name. First instance of the "protocol module" pattern
(docs/driver-model.md); usb/block will expose theirs the same way.
Also: fix a naming-standard violation in the protocol — Op -> Operation (and
req -> request, _pad -> _padding). Docs updated: /system/services added to the
FHS doc, a repository-layout section added to the docs index, and stale source
paths swept across comments and docs.
Runtime boot paths are unchanged (the bootloader still loads /sbin/init);
aligning the runtime filesystem to the FHS is a separate follow-up. Suite 35/35
plus host tests green.
138 lines
4.6 KiB
Zig
138 lines
4.6 KiB
Zig
//! AML opcode constants — the full ACPI Machine Language opcode table.
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//!
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//! Single-byte opcodes are plain values. Extended opcodes are a two-byte sequence
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//! `ext_prefix` (0x5B) followed by a byte listed under `ext`. A few comparison
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//! opcodes are `lnot_opcode` (0x92) followed by a second byte (see `lnot`).
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// --- name / path characters -------------------------------------------------
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pub const zero_opcode = 0x00;
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pub const one_opcode = 0x01;
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pub const alias_opcode = 0x06;
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pub const name_opcode = 0x08;
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pub const byte_prefix = 0x0A;
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pub const word_prefix = 0x0B;
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pub const dword_prefix = 0x0C;
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pub const string_prefix = 0x0D;
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pub const qword_prefix = 0x0E;
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pub const scope_opcode = 0x10;
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pub const buffer_opcode = 0x11;
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pub const package_opcode = 0x12;
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pub const var_package_opcode = 0x13;
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pub const method_opcode = 0x14;
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pub const external_opcode = 0x15;
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pub const dual_name_prefix = 0x2E;
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pub const multi_name_prefix = 0x2F;
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pub const extended_opcode_prefix = 0x5B;
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pub const root_char = 0x5C;
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pub const parent_prefix_char = 0x5E;
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pub const name_char_underscore = 0x5F;
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pub const digit_char_start = 0x30;
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pub const digit_char_end = 0x39;
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pub const name_char_start = 0x41; // 'A'
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pub const name_char_end = 0x5A; // 'Z'
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// --- locals / args ----------------------------------------------------------
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pub const local0_opcode = 0x60;
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pub const local7_opcode = 0x67;
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pub const arg0_opcode = 0x68;
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pub const arg6_opcode = 0x6E;
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// --- store / references / arithmetic ---------------------------------------
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pub const store_opcode = 0x70;
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pub const ref_of_opcode = 0x71;
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pub const add_opcode = 0x72;
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pub const concat_opcode = 0x73;
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pub const subtract_opcode = 0x74;
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pub const increment_opcode = 0x75;
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pub const decrement_opcode = 0x76;
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pub const multiply_opcode = 0x77;
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pub const divide_opcode = 0x78;
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pub const shift_left_opcode = 0x79;
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pub const shift_right_opcode = 0x7A;
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pub const and_opcode = 0x7B;
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pub const nand_opcode = 0x7C;
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pub const or_opcode = 0x7D;
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pub const nor_opcode = 0x7E;
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pub const xor_opcode = 0x7F;
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pub const not_opcode = 0x80;
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pub const find_set_left_bit_opcode = 0x81;
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pub const find_set_right_bit_opcode = 0x82;
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pub const dereference_of_opcode = 0x83;
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pub const concat_resource_opcode = 0x84;
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pub const mod_opcode = 0x85;
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pub const notify_opcode = 0x86;
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pub const size_of_opcode = 0x87;
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pub const index_opcode = 0x88;
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pub const match_opcode = 0x89;
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pub const create_dword_field_opcode = 0x8A;
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pub const create_word_field_opcode = 0x8B;
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pub const create_byte_field_opcode = 0x8C;
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pub const create_bit_field_opcode = 0x8D;
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pub const object_type_opcode = 0x8E;
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pub const create_qword_field_opcode = 0x8F;
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pub const land_opcode = 0x90;
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pub const lor_opcode = 0x91;
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pub const lnot_opcode = 0x92; // may be followed by a second byte (see `lnot`)
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pub const lequal_opcode = 0x93;
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pub const lgreater_opcode = 0x94;
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pub const lless_opcode = 0x95;
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pub const to_buffer_opcode = 0x96;
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pub const to_decimal_string_opcode = 0x97;
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pub const to_hex_string_opcode = 0x98;
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pub const to_integer_opcode = 0x99;
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pub const to_string_opcode = 0x9C;
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pub const copy_object_opcode = 0x9D;
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pub const mid_opcode = 0x9E;
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pub const continue_opcode = 0x9F;
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pub const if_opcode = 0xA0;
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pub const else_opcode = 0xA1;
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pub const while_opcode = 0xA2;
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pub const noop_opcode = 0xA3;
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pub const return_opcode = 0xA4;
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pub const break_opcode = 0xA5;
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pub const break_point_opcode = 0xCC;
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pub const ones_opcode = 0xFF;
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/// Second bytes of the `lnot_opcode` (0x92) compound comparison opcodes.
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pub const lnot = struct {
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pub const not_equal = 0x93; // LNotEqualOp: 0x92 0x93
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pub const less_equal = 0x94; // LLessEqualOp: 0x92 0x94
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pub const greater_equal = 0x95; // LGreaterEqualOp: 0x92 0x95
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};
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/// Second bytes of extended opcodes (prefixed by `extended_opcode_prefix`, 0x5B).
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pub const extended = struct {
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pub const mutex = 0x01;
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pub const event = 0x02;
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pub const conditional_reference_of = 0x12;
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pub const create_field = 0x13;
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pub const load_table = 0x1F;
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pub const load = 0x20;
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pub const stall = 0x21;
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pub const sleep = 0x22;
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pub const acquire = 0x23;
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pub const signal = 0x24;
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pub const wait = 0x25;
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pub const reset = 0x26;
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pub const release = 0x27;
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pub const from_bcd = 0x28;
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pub const to_bcd = 0x29;
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pub const unload = 0x2A;
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pub const revision = 0x30;
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pub const debug = 0x31;
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pub const fatal = 0x32;
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pub const timer = 0x33;
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pub const operation_region = 0x80;
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pub const field = 0x81;
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pub const device = 0x82;
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pub const processor = 0x83;
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pub const power_resource = 0x84;
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pub const thermal_zone = 0x85;
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pub const index_field = 0x86;
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pub const bank_field = 0x87;
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pub const data_region = 0x88;
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};
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