diff options
| -rw-r--r-- | 102keyboard.subx | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/102keyboard.subx b/102keyboard.subx index 39788075..f963baa2 100644 --- a/102keyboard.subx +++ b/102keyboard.subx @@ -24,6 +24,8 @@ read-key: # kbd: (addr keyboard) -> result/eax: byte 89/<- %ebp 4/r32/esp # . save registers 51/push-ecx + # wait for an interrupt to save power on Qemu + f4/hlt # result = 0 b8/copy-to-eax 0/imm32 # ecx = keyboard |