Merge pull request #17 from jsign/jsign-vm2

Implement the block execution pipeline

build.zig

@@ -138,7 +138,7 @@ pub fn build(b: *std.Build) void {
     // Creates a step for unit testing. This only builds the test executable
     // but does not run it.
     const unit_tests = b.addTest(.{
-        .root_source_file = .{ .path = "src/main.zig" },
+        .root_source_file = .{ .path = "src/lib.zig" },
         .target = target,
         .optimize = optimize,
     });

build.zig.zon

@@ -3,8 +3,8 @@
     .version = "0.0.1-beta-0",
     .dependencies = .{
         .@"zig-rlp" = .{
-            .url = "https://github.com/gballet/zig-rlp/archive/refs/tags/v0.0.1-beta-9.tar.gz",
-            .hash = "12203e6f5225dec28e2661b9c4d93dd142bea37ab1f2cac165d93dc56c65fb259be8",
+            .url = "https://github.com/gballet/zig-rlp/archive/refs/tags/v0.1.0.tar.gz",
+            .hash = "1220ebf62505957cdd9c87b9c517ceba60c46f5c9578a504ab3299b3970cc3ab0a1d",
         },
         .@"zig-eth-secp256k1" = .{
             .url = "https://github.com/jsign/zig-eth-secp256k1/archive/refs/tags/v0.1.0-beta-3.tar.gz",
@@ -13,6 +13,6 @@
         .httpz = .{
             .url = "https://github.com/karlseguin/http.zig/archive/1a82beb0dfc22e6fc38e9918e323f8fbd3cb78a3.tar.gz",
             .hash = "122020cbd399273b1220f11c4b2d734b86c94cc5f1c2d6d90fc766580bc0e25b0dfb",
-        }
+        },
     },
 }

src/blockchain/params.zig

@@ -0,0 +1,38 @@
+const std = @import("std");
+const types = @import("../types/types.zig");
+const Address = types.Address;
+
+pub const gas_limit_adjustement_factor = 1024;
+pub const gas_limit_minimum = 5000;
+pub const gas_init_code_word_const = 2;
+
+pub const tx_base_cost = 21000;
+pub const tx_data_cost_per_zero = 4;
+pub const tx_data_cost_per_non_zero = 16;
+pub const tx_create_cost = 32000;
+pub const tx_access_list_address_cost = 2400;
+pub const tx_access_list_storage_key_cost = 1900;
+
+pub const base_fee_max_change_denominator = 8;
+pub const elasticity_multiplier = 2;
+pub const max_code_size = 0x6000;
+
+pub const stack_depth_limit = 1024;
+
+pub const precompiled_contract_addresses = [_]Address{
+    addressFromInt(1), // ECRECOVER
+    addressFromInt(2), // SHA256
+    addressFromInt(3), // RIPEMD160
+    addressFromInt(4), // IDENTITY_ADDRESS
+    addressFromInt(5), // MODEXP_ADDRESS
+    addressFromInt(6), // ALT_BN128_ADD
+    addressFromInt(7), // ALT_BN128_MUL
+    addressFromInt(8), // ALT_BN128_PAIRING_CHECK
+    addressFromInt(9), // BLAKE2F
+};
+
+fn addressFromInt(comptime i: u160) Address {
+    var addr: Address = undefined;
+    std.mem.writeInt(u160, &addr, i, .Big);
+    return addr;
+}

src/blockchain/types.zig

@@ -0,0 +1,35 @@
+const types = @import("../types/types.zig");
+const config = @import("../config/config.zig");
+const common = @import("../common/common.zig");
+const StateDB = @import("../state/state.zig").StateDB;
+const Address = types.Address;
+const Hash32 = types.Hash32;
+const Bytes32 = types.Bytes32;
+const AddressSet = common.AddressSet;
+const AddresssKey = common.AddressKey;
+const AddressKeySet = common.AddressKeySet;
+
+pub const Environment = struct {
+    block_hashes: [256]Hash32,
+    origin: Address,
+    coinbase: Address,
+    number: u64,
+    base_fee_per_gas: u256,
+    gas_limit: u64,
+    gas_price: u256,
+    time: u64,
+    prev_randao: Bytes32,
+    state: *StateDB,
+    chain_id: config.ChainId,
+};
+
+pub const Message = struct {
+    caller: Address,
+    target: ?Address,
+    current_target: Address,
+    gas: u64,
+    value: u256,
+    data: []const u8,
+    code_address: ?Address,
+    code: []const u8,
+};