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@ -636,13 +636,19 @@ static void cpu_execute(rv32_cpu_t* cpu, instruction_t* instruction) |
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case FUNC75_LRW: |
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// Load-Reserved Word
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cpu->regs.x[instruction->rd] = mem_read32(address); |
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// TODO register reservation set that subsumes the bytes in word
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cpu->load_reservation = address; |
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break; |
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case FUNC75_SCW: |
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// Store-Conditional Word
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// TODO succeed only if the reservation is still valid and the reservation set contains the bytes written
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if(cpu->load_reservation == address) |
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{ |
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mem_write32(address, cpu->regs.x[instruction->rs2]); |
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cpu->regs.x[instruction->rd] = 0; // TODO write 1 in rd on failure
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cpu->regs.x[instruction->rd] = 0; // Write 0 in rd on success
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} |
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else |
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{ |
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cpu->regs.x[instruction->rd] = 1; // Write 1 in rd on failure
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} |
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break; |
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case FUNC75_AMOSWAPW: |
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// Atomic Memory Operation SWAP Word
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