Configurable parameters separated into configuration.h

src/AssemblyGeneratorX86.cpp

@@ -47,7 +47,7 @@ namespace RandomX {
 
 	void AssemblyGeneratorX86::generateProgram(Program& prog) {
 		asmCode.str(std::string()); //clear
-		for (unsigned i = 0; i < ProgramLength; ++i) {
+		for (unsigned i = 0; i < RANDOMX_PROGRAM_SIZE; ++i) {
 			Instruction& instr = prog(i);
 			instr.src %= RegistersCount;
 			instr.dst %= RegistersCount;
@@ -491,7 +491,6 @@ namespace RandomX {
 		INST_HANDLE(ISMULH_R)
 		INST_HANDLE(ISMULH_M)
 		INST_HANDLE(IMUL_RCP)
-		INST_HANDLE(ISDIV_C)
 		INST_HANDLE(INEG_R)
 		INST_HANDLE(IXOR_R)
 		INST_HANDLE(IXOR_M)
@@ -511,8 +510,6 @@ namespace RandomX {
 
 		//Floating point group E
 		INST_HANDLE(FMUL_R)
-		INST_HANDLE(FMUL_M)
-		INST_HANDLE(FDIV_R)
 		INST_HANDLE(FDIV_M)
 		INST_HANDLE(FSQRT_R)
 
@@ -520,9 +517,7 @@ namespace RandomX {
 		INST_HANDLE(COND_R)
 		INST_HANDLE(COND_M)
 		INST_HANDLE(CFROUND)
-
 		INST_HANDLE(ISTORE)
-		INST_HANDLE(FSTORE)
 
 		INST_HANDLE(NOP)
 	};

src/Cache.cpp

@@ -24,7 +24,7 @@ along with RandomX.  If not, see<http://www.gnu.org/licenses/>.
 
 namespace RandomX {
 
-	static_assert(ArgonMemorySize % (ArgonLanes * ARGON2_SYNC_POINTS) == 0, "ArgonMemorySize - invalid value");
+	static_assert(RANDOMX_ARGON_MEMORY % (RANDOMX_ARGON_LANES * ARGON2_SYNC_POINTS) == 0, "RANDOMX_ARGON_MEMORY - invalid value");
 
 	void Cache::argonFill(const void* seed, size_t seedSize) {
 		uint32_t memory_blocks, segment_length;
@@ -35,15 +35,15 @@ namespace RandomX {
 		context.outlen = 0;
 		context.pwd = CONST_CAST(uint8_t *)seed;
 		context.pwdlen = (uint32_t)seedSize;
-		context.salt = CONST_CAST(uint8_t *)ArgonSalt;
+		context.salt = CONST_CAST(uint8_t *)RANDOMX_ARGON_SALT;
 		context.saltlen = (uint32_t)ArgonSaltSize;
 		context.secret = NULL;
 		context.secretlen = 0;
 		context.ad = NULL;
 		context.adlen = 0;
-		context.t_cost = ArgonIterations;
+		context.t_cost = RANDOMX_ARGON_ITERATIONS;
-		context.m_cost = ArgonMemorySize;
+		context.m_cost = RANDOMX_ARGON_MEMORY;
-		context.lanes = ArgonLanes;
+		context.lanes = RANDOMX_ARGON_LANES;
 		context.threads = 1;
 		context.allocate_cbk = NULL;
 		context.free_cbk = NULL;

src/CompiledVirtualMachine.cpp

@@ -23,6 +23,9 @@ along with RandomX.  If not, see<http://www.gnu.org/licenses/>.
 
 namespace RandomX {
 
+	static_assert(sizeof(MemoryRegisters) == 2 * sizeof(addr_t) + sizeof(uintptr_t), "Invalid alignment of struct RandomX::MemoryRegisters");
+	static_assert(sizeof(RegisterFile) == 256, "Invalid alignment of struct RandomX::RegisterFile");
+
 	CompiledVirtualMachine::CompiledVirtualMachine() {
 		totalSize = 0;
 	}
@@ -39,7 +42,7 @@ namespace RandomX {
 	void CompiledVirtualMachine::execute() {
 		//executeProgram(reg, mem, scratchpad, InstructionCount);
 		//totalSize += compiler.getCodeSize();
-		compiler.getProgramFunc()(reg, mem, scratchpad, InstructionCount);
+		compiler.getProgramFunc()(reg, mem, scratchpad, RANDOMX_PROGRAM_ITERATIONS);
 #ifdef TRACEVM
 		for (int32_t i = InstructionCount - 1; i >= 0; --i) {
 			std::cout << std::hex << tracepad[i].u64 << std::endl;

src/CompiledVirtualMachine.hpp

@@ -26,6 +26,10 @@ along with RandomX.  If not, see<http://www.gnu.org/licenses/>.
 
 namespace RandomX {
 
+	extern "C" {
+		void executeProgram(RegisterFile&, MemoryRegisters&, uint8_t* /* scratchpad */, uint64_t);
+	}
+
 	class CompiledVirtualMachine : public VirtualMachine {
 	public:
 		void* operator new(size_t size) {

src/Instruction.cpp

@@ -346,12 +346,10 @@ namespace RandomX {
 		INST_NAME(ISMULH_R)
 		INST_NAME(ISMULH_M)
 		INST_NAME(IMUL_RCP)
-		INST_NAME(ISDIV_C)
 		INST_NAME(INEG_R)
 		INST_NAME(IXOR_R)
 		INST_NAME(IXOR_M)
 		INST_NAME(IROR_R)
-		INST_NAME(IROL_R)
 		INST_NAME(ISWAP_R)
 
 		//Common floating point
@@ -366,8 +364,6 @@ namespace RandomX {
 
 		//Floating point group E
 		INST_NAME(FMUL_R)
-		INST_NAME(FMUL_M)
-		INST_NAME(FDIV_R)
 		INST_NAME(FDIV_M)
 		INST_NAME(FSQRT_R)
 
@@ -377,7 +373,6 @@ namespace RandomX {
 		INST_NAME(CFROUND)
 
 		INST_NAME(ISTORE)
-		INST_NAME(FSTORE)
 
 		INST_NAME(NOP)
 	};
@@ -397,7 +392,6 @@ namespace RandomX {
 		INST_HANDLE(ISMULH_R)
 		INST_HANDLE(ISMULH_M)
 		INST_HANDLE(IMUL_RCP)
-		INST_HANDLE(ISDIV_C)
 		INST_HANDLE(INEG_R)
 		INST_HANDLE(IXOR_R)
 		INST_HANDLE(IXOR_M)
@@ -417,8 +411,6 @@ namespace RandomX {
 
 		//Floating point group E
 		INST_HANDLE(FMUL_R)
-		INST_HANDLE(FMUL_M)
-		INST_HANDLE(FDIV_R)
 		INST_HANDLE(FDIV_M)
 		INST_HANDLE(FSQRT_R)
 
@@ -428,7 +420,6 @@ namespace RandomX {
 		INST_HANDLE(CFROUND)
 
 		INST_HANDLE(ISTORE)
-		INST_HANDLE(FSTORE)
 
 		INST_HANDLE(NOP)
 	};

src/InterpretedVirtualMachine.cpp

@@ -68,7 +68,7 @@ namespace RandomX {
 
 	void InterpretedVirtualMachine::initialize() {
 		VirtualMachine::initialize();
-		for (unsigned i = 0; i < ProgramLength; ++i) {
+		for (unsigned i = 0; i < RANDOMX_PROGRAM_SIZE; ++i) {
 			program(i).src %= RegistersCount;
 			program(i).dst %= RegistersCount;
 		}
@@ -81,7 +81,7 @@ namespace RandomX {
 	}
 
 	template<>
-	void InterpretedVirtualMachine::executeBytecode<ProgramLength>(int_reg_t(&r)[8], __m128d (&f)[4], __m128d (&e)[4], __m128d (&a)[4]) {
+	void InterpretedVirtualMachine::executeBytecode<RANDOMX_PROGRAM_SIZE>(int_reg_t(&r)[8], __m128d (&f)[4], __m128d (&e)[4], __m128d (&a)[4]) {
 	}
 
 	static void print(int_reg_t r) {
@@ -299,7 +299,7 @@ namespace RandomX {
 			printState(r, f, e, a);
 		}
 
-		for(unsigned iter = 0; iter < InstructionCount; ++iter) {
+		for(unsigned ic = 0; ic < RANDOMX_PROGRAM_ITERATIONS; ++ic) {
 			//std::cout << "Iteration " << iter << std::endl;
 			uint64_t spMix = r[readReg0] ^ r[readReg1];
 			spAddr0 ^= spMix;
@@ -326,7 +326,7 @@ namespace RandomX {
 			e[3] = ieee_set_exponent<-240>(load_cvt_i32x2(scratchpad + spAddr1 + 56));
 
 			if (trace) {
-				std::cout << "iteration " << std::dec << iter << std::endl;
+				std::cout << "iteration " << std::dec << ic << std::endl;
 				std::cout << "spAddr " << std::hex << std::setw(8) << std::setfill('0') << spAddr1 << " / " << std::setw(8) << std::setfill('0') << spAddr0 << std::endl;
 				std::cout << "ma/mx " << std::hex << std::setw(8) << std::setfill('0') << mem.ma << std::setw(8) << std::setfill('0') << mem.mx << std::endl;
 				printState(r, f, e, a);
@@ -357,7 +357,7 @@ namespace RandomX {
 			}
 
 			if (trace) {
-				std::cout << "iteration " << std::dec << iter << std::endl;
+				std::cout << "iteration " << std::dec << ic << std::endl;
 				std::cout << "spAddr " << std::hex << std::setw(8) << std::setfill('0') << spAddr1 << " / " << std::setw(8) << std::setfill('0') << spAddr0 << std::endl;
 				std::cout << "ma/mx " << std::hex << std::setw(8) << std::setfill('0') << mem.ma << std::setw(8) << std::setfill('0') << mem.mx << std::endl;
 				printState(r, f, e, a);
@@ -421,7 +421,7 @@ namespace RandomX {
 #include "instructionWeights.hpp"
 
 	void InterpretedVirtualMachine::precompileProgram(int_reg_t(&r)[8], __m128d (&f)[4], __m128d (&e)[4], __m128d (&a)[4]) {
-		for (unsigned i = 0; i < ProgramLength; ++i) {
+		for (unsigned i = 0; i < RANDOMX_PROGRAM_SIZE; ++i) {
 			auto& instr = program(i);
 			auto& ibc = byteCode[i];
 			switch (instr.opcode) {
@@ -593,10 +593,6 @@ namespace RandomX {
 					}
 				} break;
 
-				CASE_REP(ISDIV_C) {
-					ibc.type = InstructionType::NOP;
-				} break;
-
 				CASE_REP(INEG_R) {
 					auto dst = instr.dst % RegistersCount;
 					ibc.type = InstructionType::INEG_R;
@@ -731,12 +727,6 @@ namespace RandomX {
 					ibc.fsrc = &a[src];
 				} break;
 
-				CASE_REP(FMUL_M) {
-				} break;
-
-				CASE_REP(FDIV_R) {
-				} break;
-
 				CASE_REP(FDIV_M) {
 					auto dst = instr.dst % 4;
 					auto src = instr.src % 8;
@@ -789,9 +779,6 @@ namespace RandomX {
 					ibc.memMask = ((instr.mod % 4) ? ScratchpadL1Mask : ScratchpadL2Mask);
 				} break;
 
-				CASE_REP(FSTORE) {
-				} break;
-
 				CASE_REP(NOP) {
 					ibc.type = InstructionType::NOP;
 				} break;

src/InterpretedVirtualMachine.hpp

@@ -79,7 +79,7 @@ namespace RandomX {
 		static InstructionHandler engine[256];
 		DatasetReadFunc readDataset;
 		bool softAes, asyncWorker;
-		InstructionByteCode byteCode[ProgramLength];
+		InstructionByteCode byteCode[RANDOMX_PROGRAM_SIZE];
 		
 #ifdef STATS
 		int count_ADD_64 = 0;

src/JitCompilerX86.cpp

@@ -195,7 +195,7 @@ namespace RandomX {
 		emitByte(0xc0 + readReg1);
 		memcpy(code + codePos, codeLoopLoad, loopLoadSize);
 		codePos += loopLoadSize;
-		for (unsigned i = 0; i < ProgramLength; ++i) {
+		for (unsigned i = 0; i < RANDOMX_PROGRAM_SIZE; ++i) {
 			Instruction& instr = prog(i);
 			instr.src %= RegistersCount;
 			instr.dst %= RegistersCount;
@@ -658,7 +658,6 @@ namespace RandomX {
 		INST_HANDLE(ISMULH_R)
 		INST_HANDLE(ISMULH_M)
 		INST_HANDLE(IMUL_RCP)
-		INST_HANDLE(ISDIV_C)
 		INST_HANDLE(INEG_R)
 		INST_HANDLE(IXOR_R)
 		INST_HANDLE(IXOR_M)
@@ -672,15 +671,12 @@ namespace RandomX {
 		INST_HANDLE(FSUB_M)
 		INST_HANDLE(FSCAL_R)
 		INST_HANDLE(FMUL_R)
-		INST_HANDLE(FMUL_M)
-		INST_HANDLE(FDIV_R)
 		INST_HANDLE(FDIV_M)
 		INST_HANDLE(FSQRT_R)
 		INST_HANDLE(COND_R)
 		INST_HANDLE(COND_M)
 		INST_HANDLE(CFROUND)
 		INST_HANDLE(ISTORE)
-		INST_HANDLE(FSTORE)
 		INST_HANDLE(NOP)
 	};
 

src/Program.cpp

@@ -22,7 +22,7 @@ along with RandomX.  If not, see<http://www.gnu.org/licenses/>.
 
 namespace RandomX {
 	void Program::print(std::ostream& os) const {
-		for (int i = 0; i < RandomX::ProgramLength; ++i) {
+		for (int i = 0; i < RANDOMX_PROGRAM_SIZE; ++i) {
 			auto instr = programBuffer[i];
 			os << instr;
 		}

src/Program.hpp

@@ -41,7 +41,7 @@ namespace RandomX {
 	private:
 		void print(std::ostream&) const;
 		uint64_t entropyBuffer[16];
-		Instruction programBuffer[ProgramLength];
+		Instruction programBuffer[RANDOMX_PROGRAM_SIZE];
 	};
 
 	static_assert(sizeof(Program) % 64 == 0, "Invalid size of class Program");

src/common.hpp

@@ -22,30 +22,43 @@ along with RandomX.  If not, see<http://www.gnu.org/licenses/>.
 #include <cstdint>
 #include <iostream>
 #include "blake2/endian.h"
+#include "configuration.h"
 
 namespace RandomX {
 
+	static_assert((RANDOMX_ARGON_MEMORY & (RANDOMX_ARGON_MEMORY - 1)) == 0, "RANDOMX_ARGON_MEMORY must be a power of 2.");
+	static_assert((RANDOMX_DATASET_SIZE & (RANDOMX_DATASET_SIZE - 1)) == 0, "RANDOMX_DATASET_SIZE must be a power of 2.");
+	static_assert(RANDOMX_DATASET_SIZE <= 4294967296ULL, "RANDOMX_DATASET_SIZE must not exceed 4294967296.");
+	static_assert(RANDOMX_DS_GROWTH_RATE % 64 == 0, "RANDOMX_DS_GROWTH_RATE must be divisible by 64.");
+	static_assert(RANDOMX_PROGRAM_SIZE > 0, "RANDOMX_PROGRAM_SIZE must be greater than 0");
+	static_assert(RANDOMX_PROGRAM_ITERATIONS > 0, "RANDOMX_PROGRAM_ITERATIONS must be greater than 0");
+	static_assert(RANDOMX_PROGRAM_COUNT > 0, "RANDOMX_PROGRAM_COUNT must be greater than 0");
+	static_assert((RANDOMX_SCRATCHPAD_L3 & (RANDOMX_SCRATCHPAD_L3 - 1)) == 0, "RANDOMX_SCRATCHPAD_L3 must be a power of 2.");
+	static_assert(RANDOMX_SCRATCHPAD_L3 >= RANDOMX_SCRATCHPAD_L2, "RANDOMX_SCRATCHPAD_L3 must be greater than or equal to RANDOMX_SCRATCHPAD_L2.");
+	static_assert((RANDOMX_SCRATCHPAD_L2 & (RANDOMX_SCRATCHPAD_L2 - 1)) == 0, "RANDOMX_SCRATCHPAD_L2 must be a power of 2.");
+	static_assert(RANDOMX_SCRATCHPAD_L2 >= RANDOMX_SCRATCHPAD_L1, "RANDOMX_SCRATCHPAD_L2 must be greater than or equal to RANDOMX_SCRATCHPAD_L1.");
+	static_assert((RANDOMX_SCRATCHPAD_L1 & (RANDOMX_SCRATCHPAD_L1 - 1)) == 0, "RANDOMX_SCRATCHPAD_L1 must be a power of 2.");
+	static_assert(RANDOMX_CACHE_ACCESSES > 1, "RANDOMX_CACHE_ACCESSES must be greater than 1");
+
+	constexpr int wtSum = RANDOMX_FREQ_IADD_R + RANDOMX_FREQ_IADD_M + RANDOMX_FREQ_IADD_RC + RANDOMX_FREQ_ISUB_R + \
+		RANDOMX_FREQ_ISUB_M + RANDOMX_FREQ_IMUL_9C + RANDOMX_FREQ_IMUL_R + RANDOMX_FREQ_IMUL_M + RANDOMX_FREQ_IMULH_R + \
+		RANDOMX_FREQ_IMULH_M + RANDOMX_FREQ_ISMULH_R + RANDOMX_FREQ_ISMULH_M + RANDOMX_FREQ_IMUL_RCP + \
+		RANDOMX_FREQ_INEG_R + RANDOMX_FREQ_IXOR_R + RANDOMX_FREQ_IXOR_M + RANDOMX_FREQ_IROR_R + RANDOMX_FREQ_ISWAP_R + \
+		RANDOMX_FREQ_FSWAP_R + RANDOMX_FREQ_FADD_R + RANDOMX_FREQ_FADD_M + RANDOMX_FREQ_FSUB_R + RANDOMX_FREQ_FSUB_M + \
+		RANDOMX_FREQ_FSCAL_R + RANDOMX_FREQ_FMUL_R + RANDOMX_FREQ_FDIV_M + RANDOMX_FREQ_FSQRT_R + RANDOMX_FREQ_COND_R + \
+		RANDOMX_FREQ_COND_M + RANDOMX_FREQ_CFROUND + RANDOMX_FREQ_ISTORE + RANDOMX_FREQ_NOP;
+
+	static_assert(wtSum == 256,	"Sum of instruction frequencies must be 256.");
+
 	using addr_t = uint32_t;
 
 	constexpr int SeedSize = 32;
 	constexpr int ResultSize = 64;
-
+	constexpr int ArgonSaltSize = sizeof(RANDOMX_ARGON_SALT) - 1;
-	constexpr int ArgonIterations = 3;
-	constexpr uint32_t ArgonMemorySize = 262144; //KiB
-	constexpr int ArgonLanes = 1;
-	const char ArgonSalt[] = "Monero\x1A$";
-	constexpr int ArgonSaltSize = sizeof(ArgonSalt) - 1;
-
 	constexpr int CacheLineSize = 64;
-
+	constexpr uint32_t CacheLineAlignMask = (RANDOMX_DATASET_SIZE - 1) & ~(CacheLineSize - 1);
-	constexpr uint64_t DatasetSize = 4ULL * 1024 * 1024 * 1024; //4 GiB
+	constexpr uint32_t CacheSize = RANDOMX_ARGON_MEMORY * 1024;
-	constexpr uint32_t CacheLineAlignMask = (DatasetSize - 1) & ~(CacheLineSize - 1);
-	constexpr uint32_t CacheSize = ArgonMemorySize * 1024;
 	constexpr int CacheBlockCount = CacheSize / CacheLineSize;
-	constexpr int DatasetExpansionRatio = DatasetSize / CacheSize;
-	constexpr int DatasetBlockCount = DatasetExpansionRatio * CacheBlockCount;
-	constexpr int DatasetIterations = DatasetExpansionRatio;
-
 
 #ifdef TRACE
 	constexpr bool trace = true;
@@ -70,29 +83,19 @@ namespace RandomX {
 		double hi;
 	};
 
-	constexpr int ProgramLength = 256;
+	constexpr uint32_t ScratchpadL1 = RANDOMX_SCRATCHPAD_L1 / sizeof(int_reg_t);
-	constexpr uint32_t InstructionCount = 2048;
+	constexpr uint32_t ScratchpadL2 = RANDOMX_SCRATCHPAD_L2 / sizeof(int_reg_t);
-	constexpr int ChainLength = 8;
+	constexpr uint32_t ScratchpadL3 = RANDOMX_SCRATCHPAD_L3 / sizeof(int_reg_t);
-	constexpr uint32_t ScratchpadSize = 2 * 1024 * 1024;
-	constexpr uint32_t ScratchpadLength = ScratchpadSize / sizeof(int_reg_t);
-	constexpr uint32_t ScratchpadL1 = ScratchpadSize / 128 / sizeof(int_reg_t);
-	constexpr uint32_t ScratchpadL2 = ScratchpadSize / 8 / sizeof(int_reg_t);
-	constexpr uint32_t ScratchpadL3 = ScratchpadSize / sizeof(int_reg_t);
 	constexpr int ScratchpadL1Mask = (ScratchpadL1 - 1) * 8;
 	constexpr int ScratchpadL2Mask = (ScratchpadL2 - 1) * 8;
 	constexpr int ScratchpadL1Mask16 = (ScratchpadL1 / 2 - 1) * 16;
 	constexpr int ScratchpadL2Mask16 = (ScratchpadL2 / 2 - 1) * 16;
-	constexpr int ScratchpadL3Mask = (ScratchpadLength - 1) * 8;
+	constexpr int ScratchpadL3Mask = (ScratchpadL3 - 1) * 8;
-	constexpr int ScratchpadL3Mask64 = (ScratchpadLength / 8 - 1) * 64;
+	constexpr int ScratchpadL3Mask64 = (ScratchpadL3 / 8 - 1) * 64;
-	constexpr uint32_t TransformationCount = 90;
 	constexpr int RegistersCount = 8;
 
 	class Cache;
 
-	inline int wrapInstr(int i) {
-		return i % RandomX::ProgramLength;
-	}
-
 	class ILightClientAsyncWorker {
 	public:
 		virtual ~ILightClientAsyncWorker() {}
@@ -120,8 +123,6 @@ namespace RandomX {
 		dataset_t ds;
 	};
 
-	static_assert(sizeof(MemoryRegisters) == 2 * sizeof(addr_t) + sizeof(uintptr_t), "Invalid alignment of struct RandomX::MemoryRegisters");
-
 	struct RegisterFile {
 		int_reg_t r[RegistersCount];
 		fpu_reg_t f[RegistersCount / 2];
@@ -129,15 +130,9 @@ namespace RandomX {
 		fpu_reg_t a[RegistersCount / 2];
 	};
 
-	static_assert(sizeof(RegisterFile) == 256, "Invalid alignment of struct RandomX::RegisterFile");
-
 	typedef void(*DatasetReadFunc)(addr_t, MemoryRegisters&, int_reg_t(&reg)[RegistersCount]);
 
 	typedef void(*ProgramFunc)(RegisterFile&, MemoryRegisters&, uint8_t* /* scratchpad */, uint64_t);
-
-	extern "C" {
-		void executeProgram(RegisterFile&, MemoryRegisters&, uint8_t* /* scratchpad */, uint64_t);
-	}
 }
 
 std::ostream& operator<<(std::ostream& os, const RandomX::RegisterFile& rf);

src/configuration.h

@@ -0,0 +1,101 @@
+/*
+Copyright (c) 2019 tevador
+
+This file is part of RandomX.
+
+RandomX is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+RandomX is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with RandomX.  If not, see<http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+//Cache size in KiB. Must be a power of 2.
+#define RANDOMX_ARGON_MEMORY       (256 * 1024)
+
+//Number of Argon2d iterations for Cache initialization
+#define RANDOMX_ARGON_ITERATIONS   3
+
+//Number of parallel lanes for Cache initialization
+#define RANDOMX_ARGON_LANES        1
+
+//Argon2d salt
+#define RANDOMX_ARGON_SALT         "RandomX\x03"
+
+//Number of random Cache accesses per Dataset block. Minimum is 2.
+#define RANDOMX_CACHE_ACCESSES     16
+
+//Dataset size in bytes. Must be a power of 2.
+#define RANDOMX_DATASET_SIZE       (4ULL * 1024 * 1024 * 1024)
+
+//Dataset growth per epoch in bytes. Must be divisible by 64.
+#define RANDOMX_DS_GROWTH_RATE     (2 * 1024 * 1024)
+
+//Number of instructions in a RandomX program
+#define RANDOMX_PROGRAM_SIZE       256
+
+//Number of iterations during VM execution
+#define RANDOMX_PROGRAM_ITERATIONS 2048
+
+//Number of chained VM executions per hash
+#define RANDOMX_PROGRAM_COUNT     8
+
+//Scratchpad L3 size in bytes. Must be a power of 2.
+#define RANDOMX_SCRATCHPAD_L3      (2 * 1024 * 1024)
+
+//Scratchpad L2 size in bytes. Must be a power of two and less than or equal to RANDOMX_SCRATCHPAD_L3.
+#define RANDOMX_SCRATCHPAD_L2      (256 * 1024)
+
+//Scratchpad L1 size in bytes. Must be a power of two and less than or equal to RANDOMX_SCRATCHPAD_L2.
+#define RANDOMX_SCRATCHPAD_L1      (16 * 1024)
+
+/*
+Instruction frequencies (per 256 opcodes)
+Total sum of frequencies must be 256
+*/
+
+#define RANDOMX_FREQ_IADD_R 12
+#define RANDOMX_FREQ_IADD_M 7
+#define RANDOMX_FREQ_IADD_RC 16
+#define RANDOMX_FREQ_ISUB_R 12
+#define RANDOMX_FREQ_ISUB_M 7
+#define RANDOMX_FREQ_IMUL_9C 9
+#define RANDOMX_FREQ_IMUL_R 16
+#define RANDOMX_FREQ_IMUL_M 4
+#define RANDOMX_FREQ_IMULH_R 4
+#define RANDOMX_FREQ_IMULH_M 1
+#define RANDOMX_FREQ_ISMULH_R 4
+#define RANDOMX_FREQ_ISMULH_M 1
+#define RANDOMX_FREQ_IMUL_RCP 8
+#define RANDOMX_FREQ_INEG_R 2
+#define RANDOMX_FREQ_IXOR_R 16
+#define RANDOMX_FREQ_IXOR_M 4
+#define RANDOMX_FREQ_IROR_R 10
+#define RANDOMX_FREQ_IROL_R 0
+#define RANDOMX_FREQ_ISWAP_R 4
+
+#define RANDOMX_FREQ_FSWAP_R 8
+#define RANDOMX_FREQ_FADD_R 20
+#define RANDOMX_FREQ_FADD_M 5
+#define RANDOMX_FREQ_FSUB_R 20
+#define RANDOMX_FREQ_FSUB_M 5
+#define RANDOMX_FREQ_FSCAL_R 6
+#define RANDOMX_FREQ_FMUL_R 20
+#define RANDOMX_FREQ_FDIV_M 4
+#define RANDOMX_FREQ_FSQRT_R 6
+
+#define RANDOMX_FREQ_COND_R 7
+#define RANDOMX_FREQ_COND_M 1
+#define RANDOMX_FREQ_CFROUND 1
+#define RANDOMX_FREQ_ISTORE 16
+
+#define RANDOMX_FREQ_NOP 0

src/dataset.cpp

@@ -47,7 +47,7 @@ namespace RandomX {
 
 		constexpr uint32_t mask = (CacheSize - 1) & CacheLineAlignMask;
 
-		for (auto i = 0; i < DatasetIterations; ++i) {
+		for (auto i = 0; i < RANDOMX_CACHE_ACCESSES; ++i) {
 			const uint8_t* mixBlock = cache + (c0 & mask);
 			PREFETCHNTA(mixBlock);
 			c0 = squareHash(c0);
@@ -103,14 +103,14 @@ namespace RandomX {
 		aw->prepareBlock(memory.ma);
 	}
 
-	void datasetAlloc(dataset_t& ds, bool largePages) {
+	void datasetAlloc(dataset_t& ds, uint64_t size, bool largePages) {
 		if (sizeof(size_t) <= 4)
 			throw std::runtime_error("Platform doesn't support enough memory for the dataset");
 		if (largePages) {
-			ds.dataset = (uint8_t*)allocLargePagesMemory(DatasetSize);
+			ds.dataset = (uint8_t*)allocLargePagesMemory(size);
 		}
 		else {
-			ds.dataset = (uint8_t*)_mm_malloc(DatasetSize, 64);
+			ds.dataset = (uint8_t*)_mm_malloc(size, 64);
 			if (ds.dataset == nullptr) {
 				throw std::runtime_error("Dataset memory allocation failed. >4 GiB of free virtual memory is needed.");
 			}

src/dataset.hpp

@@ -30,7 +30,7 @@ namespace RandomX {
 
 	void initBlock(const uint8_t* cache, uint8_t* block, uint32_t blockNumber);
 
-	void datasetAlloc(dataset_t& ds, bool largePages);
+	void datasetAlloc(dataset_t& ds, uint64_t size, bool largePages);
 
 	void datasetInit(Cache* cache, dataset_t ds, uint32_t startBlock, uint32_t blockCount);
 

src/instructionWeights.hpp

@@ -19,67 +19,6 @@ along with RandomX.  If not, see<http://www.gnu.org/licenses/>.
 
 #pragma once
 
-//Integer
-#define WT_IADD_R 12
-#define WT_IADD_M 7
-#define WT_IADD_RC 16
-#define WT_ISUB_R 12
-#define WT_ISUB_M 7
-#define WT_IMUL_9C 9
-#define WT_IMUL_R 16
-#define WT_IMUL_M 4
-#define WT_IMULH_R 4
-#define WT_IMULH_M 1
-#define WT_ISMULH_R 4
-#define WT_ISMULH_M 1
-#define WT_IMUL_RCP 8
-#define WT_ISDIV_C 0
-#define WT_INEG_R 2
-#define WT_IXOR_R 16
-#define WT_IXOR_M 4
-#define WT_IROR_R 10
-#define WT_IROL_R 0
-#define WT_ISWAP_R 4
-
-//Common floating point
-#define WT_FSWAP_R 8
-
-//Floating point group F
-#define WT_FADD_R 20
-#define WT_FADD_M 5
-#define WT_FSUB_R 20
-#define WT_FSUB_M 5
-#define WT_FSCAL_R 6
-
-//Floating point group E
-#define WT_FMUL_R 20
-#define WT_FMUL_M 0
-#define WT_FDIV_R 0
-#define WT_FDIV_M 4
-#define WT_FSQRT_R 6
-
-//Control
-#define WT_COND_R 7
-#define WT_COND_M 1
-#define WT_CFROUND 1
-
-//Store
-#define WT_ISTORE 16
-#define WT_FSTORE 0
-
-#define WT_NOP 0
-
-constexpr int wtSum = WT_IADD_R + WT_IADD_M + WT_IADD_RC + WT_ISUB_R + \
-WT_ISUB_M + WT_IMUL_9C + WT_IMUL_R + WT_IMUL_M + WT_IMULH_R + \
-WT_IMULH_M + WT_ISMULH_R + WT_ISMULH_M + WT_IMUL_RCP + WT_ISDIV_C + \
-WT_INEG_R + WT_IXOR_R + WT_IXOR_M + WT_IROR_R + WT_IROL_R + \
-WT_ISWAP_R + WT_FSWAP_R + WT_FADD_R + WT_FADD_M + WT_FSUB_R + WT_FSUB_M + \
-WT_FSCAL_R + WT_FMUL_R + WT_FMUL_M + WT_FDIV_R + WT_FDIV_M + \
-WT_FSQRT_R + WT_COND_R + WT_COND_M + WT_CFROUND + WT_ISTORE + WT_FSTORE + WT_NOP;
-
-static_assert(wtSum == 256,
-	"Sum of instruction weights must be 256");
-
 #define REP0(x)
 #define REP1(x) x,
 #define REP2(x) REP1(x) x,
@@ -121,7 +60,7 @@ static_assert(wtSum == 256,
 #define REPNX(x,N) REP##N(x)
 #define REPN(x,N) REPNX(x,N)
 #define NUM(x) x
-#define WT(x) NUM(WT_##x)
+#define WT(x) NUM(RANDOMX_FREQ_##x)
 
 #define REPCASE0(x)
 #define REPCASE1(x) case __COUNTER__:

src/main.cpp

@@ -132,8 +132,8 @@ void generateAsm(uint32_t nonce) {
 	memcpy(blockTemplate, blockTemplate__, sizeof(blockTemplate));
 	store32(blockTemplate + 39, nonce);
 	blake2b(hash, sizeof(hash), blockTemplate, sizeof(blockTemplate), nullptr, 0);
-	uint8_t scratchpad[RandomX::ScratchpadSize];
+	uint8_t scratchpad[RANDOMX_SCRATCHPAD_L3];
-	fillAes1Rx4<softAes>((void*)hash, RandomX::ScratchpadSize, scratchpad);
+	fillAes1Rx4<softAes>((void*)hash, RANDOMX_SCRATCHPAD_L3, scratchpad);
 	RandomX::AssemblyGeneratorX86 asmX86;
 	RandomX::Program p;
 	fillAes1Rx4<softAes>(hash, sizeof(p), &p);
@@ -148,11 +148,11 @@ void generateNative(uint32_t nonce) {
 	memcpy(blockTemplate, blockTemplate__, sizeof(blockTemplate));
 	store32(blockTemplate + 39, nonce);
 	blake2b(hash, sizeof(hash), blockTemplate, sizeof(blockTemplate), nullptr, 0);
-	uint8_t scratchpad[RandomX::ScratchpadSize];
+	uint8_t scratchpad[RANDOMX_SCRATCHPAD_L3];
-	fillAes1Rx4<softAes>((void*)hash, RandomX::ScratchpadSize, scratchpad);
+	fillAes1Rx4<softAes>((void*)hash, RANDOMX_SCRATCHPAD_L3, scratchpad);
 	alignas(16) RandomX::Program prog;
 	fillAes1Rx4<softAes>((void*)hash, sizeof(prog), &prog);
-	for (int i = 0; i < RandomX::ProgramLength; ++i) {
+	for (int i = 0; i < RANDOMX_PROGRAM_SIZE; ++i) {
 		prog(i).dst %= 8;
 		prog(i).src %= 8;
 	}
@@ -171,11 +171,11 @@ void mine(RandomX::VirtualMachine* vm, std::atomic<uint32_t>& atomicNonce, Atomi
 		//std::cout << "Thread " << thread << " nonce " << nonce << std::endl;
 		store32(noncePtr, nonce);
 		blake2b(hash, sizeof(hash), blockTemplate, sizeof(blockTemplate), nullptr, 0);
-		fillAes1Rx4<softAes>((void*)hash, RandomX::ScratchpadSize, scratchpad);
+		fillAes1Rx4<softAes>((void*)hash, RANDOMX_SCRATCHPAD_L3, scratchpad);
 		vm->resetRoundingMode();
 		vm->setScratchpad(scratchpad);
 		//dump((char*)scratchpad, RandomX::ScratchpadSize, "spad-before.txt");
-		for (int chain = 0; chain < RandomX::ChainLength - 1; ++chain) {
+		for (int chain = 0; chain < RANDOMX_PROGRAM_COUNT - 1; ++chain) {
 			fillAes1Rx4<softAes>((void*)hash, sizeof(RandomX::Program), vm->getProgramBuffer());
 			vm->initialize();
 			vm->execute();
@@ -190,7 +190,7 @@ void mine(RandomX::VirtualMachine* vm, std::atomic<uint32_t>& atomicNonce, Atomi
 				std::cout << std::hex << std::setw(16) << std::setfill('0') << res << std::endl;
 			}
 		}*/
-		vm->getResult<softAes>(scratchpad, RandomX::ScratchpadSize, hash);
+		vm->getResult<softAes>(scratchpad, RANDOMX_SCRATCHPAD_L3, hash);
 		result.xorWith(hash);
 		if (RandomX::trace) {
 			std::cout << "Nonce: " << nonce << " ";
@@ -267,10 +267,11 @@ int main(int argc, char** argv) {
 		}
 		else {
 			RandomX::Cache* cache = dataset.cache;
-			RandomX::datasetAlloc(dataset, largePages);
+			RandomX::datasetAlloc(dataset, RANDOMX_DATASET_SIZE, largePages);
+			const uint64_t datasetBlockCount = RANDOMX_DATASET_SIZE / RandomX::CacheLineSize;
 			if (initThreadCount > 1) {
-				auto perThread = RandomX::DatasetBlockCount / initThreadCount;
+				auto perThread = datasetBlockCount / initThreadCount;
-				auto remainder = RandomX::DatasetBlockCount % initThreadCount;
+				auto remainder = datasetBlockCount % initThreadCount;
 				for (int i = 0; i < initThreadCount; ++i) {
 					auto count = perThread + (i == initThreadCount - 1 ? remainder : 0);
 					threads.push_back(std::thread(&RandomX::datasetInit, cache, dataset, i * perThread, count));
@@ -280,7 +281,7 @@ int main(int argc, char** argv) {
 				}
 			}
 			else {
-				RandomX::datasetInit(cache, dataset, 0, RandomX::DatasetBlockCount);
+				RandomX::datasetInit(cache, dataset, 0, datasetBlockCount);
 			}
 			RandomX::Cache::dealloc(cache, largePages);
 			threads.clear();
@@ -300,19 +301,19 @@ int main(int argc, char** argv) {
 		}
 		uint8_t* scratchpadMem;
 		if (largePages) {
-			scratchpadMem = (uint8_t*)allocLargePagesMemory(threadCount * RandomX::ScratchpadSize);
+			scratchpadMem = (uint8_t*)allocLargePagesMemory(threadCount * RANDOMX_SCRATCHPAD_L3);
 		}
 		else {
-			scratchpadMem = (uint8_t*)_mm_malloc(threadCount * RandomX::ScratchpadSize, RandomX::CacheLineSize);
+			scratchpadMem = (uint8_t*)_mm_malloc(threadCount * RANDOMX_SCRATCHPAD_L3, RandomX::CacheLineSize);
 		}
 		std::cout << "Running benchmark (" << programCount << " nonces) ..." << std::endl;
 		sw.restart();
 		if (threadCount > 1) {
 			for (unsigned i = 0; i < vms.size(); ++i) {
 				if (softAes)
-					threads.push_back(std::thread(&mine<true>, vms[i], std::ref(atomicNonce), std::ref(result), programCount, i, scratchpadMem + RandomX::ScratchpadSize * i));
+					threads.push_back(std::thread(&mine<true>, vms[i], std::ref(atomicNonce), std::ref(result), programCount, i, scratchpadMem + RANDOMX_SCRATCHPAD_L3 * i));
 				else
-					threads.push_back(std::thread(&mine<false>, vms[i], std::ref(atomicNonce), std::ref(result), programCount, i, scratchpadMem + RandomX::ScratchpadSize * i));
+					threads.push_back(std::thread(&mine<false>, vms[i], std::ref(atomicNonce), std::ref(result), programCount, i, scratchpadMem + RANDOMX_SCRATCHPAD_L3 * i));
 			}
 			for (unsigned i = 0; i < threads.size(); ++i) {
 				threads[i].join();
@@ -330,7 +331,7 @@ int main(int argc, char** argv) {
 		std::cout << "Calculated result: ";
 		result.print(std::cout);
 		if(programCount == 1000)
-		std::cout << "Reference result:  e1b4144293ff9ab5aa4c98f2389bb18950d8c3fd874891ac64628e028a286006" << std::endl;
+		std::cout << "Reference result:  128599cc10f9f6251e7917fa1d09ab2116ab4081bf1357149bd4054275dd8ee9" << std::endl;
 		if (!miningMode) {
 			std::cout << "Performance: " << 1000 * elapsed / programCount << " ms per hash" << std::endl;
 		}