github/acrn-hypervisor
1
0
Fork 0
mirror of https://github.com/projectacrn/acrn-hypervisor.git synced 2025-09-24 10:17:28 +00:00
Code Issues Projects Releases Wiki Activity

hv: code clean up regarding to % and / operations

Browse Source 
- Clean up some code regarding to % and / operations since bit
  operations are faster.
        x % 64U ---> x & 0x3fU
        x % 32U ---> x & 0x1fU
        x % 16U ---> x & 0xfU
        x % 8U  ---> x & 0x7U
        x % 4U  ---> x & 0x3U
        x % 2U  ---> x & 0x1U

        x / 64U ---> x >> 6U
        x / 32U ---> x >> 5U
        x / 16U ---> x >> 4U
        x / 8U  ---> x >> 3U
        x / 4U  ---> x >> 2U
        x / 2U  ---> x >> 1U
- Minor changes regarding to coding styles

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Shiqing Gao
2018-08-21 13:36:45 +08:00
committed by lijinxia
parent 0c630d9003
commit 42aaf5d46f
10 changed files with 39 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
hypervisor/debug/vuart.c
View File

@@ -384,7 +384,7 @@ void *vuart_init(struct vm *vm)
ASSERT(vu != NULL, "");
/* Set baud rate*/
divisor = UART_CLOCK_RATE / BAUD_9600 / 16U;
divisor = (UART_CLOCK_RATE / BAUD_9600) >> 4U;
vu->dll = (uint8_t)divisor;
vu->dlh = (uint8_t)(divisor >> 8U);