[pk,sim,xcc] get rid of at register, introduce tp register

16 years ago · 78bc7d9885
4 changed files with 2 additions and 6 deletions
--- a/riscv/insns/mfcr.h
+++ b/riscv/insns/mfcr.h
@ -11,8 +11,7 @@ switch(insn.rtype.rs2)
    break;

  case 29:
-    val = tid;
-    break;
+    throw trap_illegal_instruction;

  default:
    val = -1;
--- a/riscv/insns/mtcr.h
+++ b/riscv/insns/mtcr.h
@ -5,6 +5,5 @@ switch(insn.rtype.rs2)
    break;

  case 29:
-    tid = RS1;
-    break;
+    throw trap_illegal_instruction;
 }
--- a/riscv/processor.cc
+++ b/riscv/processor.cc
@ -19,7 +19,6 @@ processor_t::processor_t(sim_t* _sim, char* _mem, size_t _memsz)
  epc = 0;
  badvaddr = 0;
  cause = 0;
-  tid = 0;
  pcr_k0 = 0;
  pcr_k1 = 0;
  tohost = 0;
--- a/riscv/processor.h
+++ b/riscv/processor.h
@ -39,7 +39,6 @@ private:
  uint32_t interrupts_pending;

  // unprivileged control registers
-  uint32_t tid;
  uint32_t fsr;

  // 32-bit or 64-bit mode (redundant with sr)