On 25/9/25 02:58, Coco Li wrote:
Signed-off-by: Coco Li <[email protected]>
Reviewed-by: Hao Wu <[email protected]>
---
hw/gpio/npcm8xx_sgpio.c | 134 ++++++++++++++++++++---
include/hw/gpio/npcm8xx_sgpio.h | 4 +-
tests/qtest/npcm8xx_sgpio-test.c | 180 ++++++++++++++++++++++++++-----
3 files changed, 274 insertions(+), 44 deletions(-)
diff --git a/hw/gpio/npcm8xx_sgpio.c b/hw/gpio/npcm8xx_sgpio.c
+static uint8_t get_even_bits(uint16_t n)
+{
+ n &= 0x5555;
+
+ n = (n | (n >> 1)) & 0x3333;
+ n = (n | (n >> 2)) & 0x0F0F;
+ n = (n | (n >> 4)) & 0x00FF;
+
+ return (uint8_t)n;
+}
+
+static uint8_t get_odd_bits(uint16_t n)
+{
+ return get_even_bits(n >> 1);
+}
Candidates for "include/qemu/bitops.h"?
