sim: cr16: clean up unused insn operands

The push/pop insns only have 2 operands, so delete unused "c".

The pushret/popret insns use 2 operands, but they don't implement the
logic directly, they call the push/pop implementations.  So delete the
unused "a" & "b".

diff --git a/sim/cr16/simops.c b/sim/cr16/simops.c
index 73420a7e0c6c6d4aae25e05f6d2f8e8316fd4855..2630847b93c5053185be60f1321e2a25293cb511 100644 (file)
--- a/sim/cr16/simops.c
+++ b/sim/cr16/simops.c
@@ -5465,7 +5465,7 @@ OP_C_C (SIM_DESC sd, SIM_CPU *cpu)
 void
 OP_3_9 (SIM_DESC sd, SIM_CPU *cpu)
 {
-  uint16_t a = OP[0] + 1, b = OP[1], c = OP[2], i = 0;
+  uint16_t a = OP[0] + 1, b = OP[1], i = 0;
   uint32_t tmp, sp_addr = (GPR32 (15)) - (a * 2) - 4, is_regp = 0;
   trace_input ("push", OP_CONSTANT3, OP_REG, OP_REG);
 
@@ -5585,7 +5585,7 @@ OP_11E_10 (SIM_DESC sd, SIM_CPU *cpu)
 void
 OP_5_9 (SIM_DESC sd, SIM_CPU *cpu)
 {
-  uint16_t a = OP[0] + 1, b = OP[1], c = OP[2], i = 0;
+  uint16_t a = OP[0] + 1, b = OP[1], i = 0;
   uint32_t tmp, sp_addr = (GPR32 (15)), is_regp = 0;;
   trace_input ("pop", OP_CONSTANT3, OP_REG, OP_REG);
 
@@ -5707,7 +5707,6 @@ OP_21E_10 (SIM_DESC sd, SIM_CPU *cpu)
 void
 OP_7_9 (SIM_DESC sd, SIM_CPU *cpu)
 {
-  uint16_t a = OP[0], b = OP[1];
   trace_input ("popret", OP_CONSTANT3, OP_REG, OP_REG);
   OP_5_9 (sd, cpu);
   JMP(((GPR32(14)) << 1) & 0xffffff);
@@ -5719,7 +5718,6 @@ OP_7_9 (SIM_DESC sd, SIM_CPU *cpu)
 void
 OP_3_8 (SIM_DESC sd, SIM_CPU *cpu)
 {
-  uint16_t a = OP[0], b = OP[1];
   trace_input ("popret", OP_CONSTANT3, OP_REG, OP_VOID);
   OP_2_8 (sd, cpu);
   JMP(((GPR32(14)) << 1) & 0xffffff);