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-rw-r--r--kernel/arch/mips/math-emu/cp1emu.c24
1 files changed, 21 insertions, 3 deletions
diff --git a/kernel/arch/mips/math-emu/cp1emu.c b/kernel/arch/mips/math-emu/cp1emu.c
index 6983fcd48..2b95e34fa 100644
--- a/kernel/arch/mips/math-emu/cp1emu.c
+++ b/kernel/arch/mips/math-emu/cp1emu.c
@@ -1137,7 +1137,7 @@ emul:
break;
case mfhc_op:
- if (!cpu_has_mips_r2)
+ if (!cpu_has_mips_r2_r6)
goto sigill;
/* copregister rd -> gpr[rt] */
@@ -1148,7 +1148,7 @@ emul:
break;
case mthc_op:
- if (!cpu_has_mips_r2)
+ if (!cpu_has_mips_r2_r6)
goto sigill;
/* copregister rd <- gpr[rt] */
@@ -1181,6 +1181,24 @@ emul:
}
break;
+ case bc1eqz_op:
+ case bc1nez_op:
+ if (!cpu_has_mips_r6 || delay_slot(xcp))
+ return SIGILL;
+
+ cond = likely = 0;
+ switch (MIPSInst_RS(ir)) {
+ case bc1eqz_op:
+ if (get_fpr32(&current->thread.fpu.fpr[MIPSInst_RT(ir)], 0) & 0x1)
+ cond = 1;
+ break;
+ case bc1nez_op:
+ if (!(get_fpr32(&current->thread.fpu.fpr[MIPSInst_RT(ir)], 0) & 0x1))
+ cond = 1;
+ break;
+ }
+ goto branch_common;
+
case bc_op:
if (delay_slot(xcp))
return SIGILL;
@@ -1207,7 +1225,7 @@ emul:
case bct_op:
break;
}
-
+branch_common:
set_delay_slot(xcp);
if (cond) {
/*