vhaudiquet/vriscv
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Added CSRRSI

Browse Source
This commit is contained in:
Valentin Haudiquet 2023-10-20 12:17:41 +02:00
parent 608dbba6a0
commit 256a56f70e
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/cpu/rv32cpu.c
View File

@ -570,7 +570,9 @@ static void cpu_execute(rv32_cpu_t* cpu, instruction_t* instruction)
cpu->regs.x[instruction->rd] = csrrwi_old_value; cpu->regs.x[instruction->rd] = csrrwi_old_value;
break; break;
case FUNC3_CSRRSI: case FUNC3_CSRRSI:
fprintf(stderr, "CSRRSI\n"); // CSR atomic Read and Set bits immediate
cpu->regs.x[instruction->rd] = cpu->csr[instruction->immediate];
cpu->csr[instruction->immediate] |= instruction->rs1;
break; break;
case FUNC3_CSRRCI: case FUNC3_CSRRCI:
// CSR atomic Read and Clear bits Immediate (immediate in rs1) // CSR atomic Read and Clear bits Immediate (immediate in rs1)