diff options
Diffstat (limited to 'code/fe310/eos/trap_entry.S')
| -rw-r--r-- | code/fe310/eos/trap_entry.S | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/code/fe310/eos/trap_entry.S b/code/fe310/eos/trap_entry.S index 21cf2f8..432e84a 100644 --- a/code/fe310/eos/trap_entry.S +++ b/code/fe310/eos/trap_entry.S @@ -266,8 +266,10 @@ i2s_handler_sd_xchg: lhu x18, I2S_ABUF_OFF_IDXR(x9) lhu x19, I2S_ABUF_OFF_IDXW(x9) lhu x20, I2S_ABUF_OFF_SIZE(x9) + li x21, 0xffff sub x18, x19, x18 + and x18, x18, x21 beq x18, x20, 0f addi x19, x19, 1 |