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> compile NEMU

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ysyx_22040000 李心杨
Linux calcite 6.6.18 #1-NixOS SMP PREEMPT_DYNAMIC Fri Feb 23 08:25:28 UTC 2024 x86_64 GNU/Linux
 22:49:30  up 2 days  2:17,  2 users,  load average: 0.60, 0.41, 0.27
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tracer-ysyx 2024-03-06 22:49:30 +08:00 committed by xinyangli
parent 9e92a32d15
commit 7eb0e2817f
1 changed files with 10 additions and 0 deletions
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10
nemu/src/isa/riscv32/inst.c
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@ -116,6 +116,16 @@ static int decode_exec(Decode *s) {
INSTPAT("0000000 ????? ????? 001 ????? 00100 11", slli , I, R(rd) = src1 << imm);
INSTPAT("0000000 ????? ????? 101 ????? 00100 11", srli , I, R(rd) = src1 >> imm);
INSTPAT("0100000 ????? ????? 101 ????? 00100 11", srai , I, R(rd) = (sword_t)src1 >> (imm & 0x01F));
INSTPAT("0000000 ????? ????? 000 ????? 01100 11", add , R, R(rd) = src1 + src2);
INSTPAT("0100000 ????? ????? 000 ????? 01100 11", sub , R, R(rd) = src1 - src2);
INSTPAT("0000000 ????? ????? 001 ????? 01100 11", sll , R, R(rd) = src1 << src2);
INSTPAT("0000000 ????? ????? 010 ????? 01100 11", slt , R, R(rd) = (sword_t)src1 < (sword_t)src2 ? 1 : 0);
INSTPAT("0000000 ????? ????? 011 ????? 01100 11", sltu , R, R(rd) = src1 < src2 ? 1 : 0);
INSTPAT("0000000 ????? ????? 100 ????? 01100 11", xor , R, R(rd) = src1 ^ src2);
INSTPAT("0000000 ????? ????? 101 ????? 01100 11", srl , R, R(rd) = src1 >> src2);
INSTPAT("0100000 ????? ????? 101 ????? 01100 11", sra , R, R(rd) = (sword_t)src1 >> (src2 & 0x01F));
INSTPAT("0000000 00001 00000 000 00000 11100 11", ebreak , N, NEMUTRAP(s->pc, R(10))); // R(10) is $a0
INSTPAT("??????? ????? ????? ??? ????? ????? ??", inv , N, INV(s->pc));