mirror of https://github.com/YosysHQ/picorv32.git
Add missing "volatile" to "asm" statements
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@ -26,7 +26,7 @@ int heap_memory_used = 0;
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long time()
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{
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int cycles;
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asm("rdcycle %0" : "=r"(cycles));
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asm volatile ("rdcycle %0" : "=r"(cycles));
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// printf("[time() -> %d]", cycles);
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return cycles;
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}
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@ -34,7 +34,7 @@ long time()
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long insn()
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{
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int insns;
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asm("rdinstret %0" : "=r"(insns));
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asm volatile ("rdinstret %0" : "=r"(insns));
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// printf("[insn() -> %d]", insns);
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return insns;
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}
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@ -46,7 +46,7 @@ char *malloc(int size)
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// printf("[malloc(%d) -> %d (%d..%d)]", size, (int)p, heap_memory_used, heap_memory_used + size);
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heap_memory_used += size;
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if (heap_memory_used > 1024)
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asm("ebreak");
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asm volatile ("ebreak");
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return p;
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}
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@ -28,7 +28,7 @@ static void stats_print_dec(unsigned int val, int digits, bool zero_pad)
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void stats(void)
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{
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unsigned int num_cycles, num_instr;
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__asm__("rdcycle %0; rdinstret %1;" : "=r"(num_cycles), "=r"(num_instr));
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__asm__ volatile ("rdcycle %0; rdinstret %1;" : "=r"(num_cycles), "=r"(num_instr));
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print_str("Cycle counter ........");
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stats_print_dec(num_cycles, 8, false);
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print_str("\nInstruction counter ..");
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