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[Qemu-ppc] [PATCHi v2] ppc: Fix a warning in bcdcfz code and improve BCD
From: |
Jose Ricardo Ziviani |
Subject: |
[Qemu-ppc] [PATCHi v2] ppc: Fix a warning in bcdcfz code and improve BCD_DIG_BYTE macro |
Date: |
Wed, 11 Jan 2017 19:11:25 -0200 |
This commit fixes a warning in the code "(i * 2) ? .. : ..", which
should be better as "i ? .. : ..", and improves the BCD_DIG_BYTE
macro by placing parentheses around its argument to avoid possible
expansion issues like: BCD_DIG_BYTE(i + j).
Signed-off-by: Jose Ricardo Ziviani <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
---
target/ppc/int_helper.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c
index 24e5964..bd8282c 100644
--- a/target/ppc/int_helper.c
+++ b/target/ppc/int_helper.c
@@ -2583,9 +2583,9 @@ void helper_vsubecuq(ppc_avr_t *r, ppc_avr_t *a,
ppc_avr_t *b, ppc_avr_t *c)
#define NATIONAL_NEG 0x2D
#if defined(HOST_WORDS_BIGENDIAN)
-#define BCD_DIG_BYTE(n) (15 - (n/2))
+#define BCD_DIG_BYTE(n) (15 - ((n) / 2))
#else
-#define BCD_DIG_BYTE(n) (n/2)
+#define BCD_DIG_BYTE(n) ((n) / 2)
#endif
static int bcd_get_sgn(ppc_avr_t *bcd)
@@ -2908,7 +2908,7 @@ uint32_t helper_bcdcfz(ppc_avr_t *r, ppc_avr_t *b,
uint32_t ps)
}
for (i = 0; i < 16; i++) {
- zone_digit = (i * 2) ? b->u8[BCD_DIG_BYTE(i * 2)] >> 4 : zone_lead;
+ zone_digit = i ? b->u8[BCD_DIG_BYTE(i * 2)] >> 4 : zone_lead;
digit = b->u8[BCD_DIG_BYTE(i * 2)] & 0xF;
if (unlikely(zone_digit != zone_lead || digit > 0x9)) {
invalid = 1;
--
2.7.4
- [Qemu-ppc] [PATCHi v2] ppc: Fix a warning in bcdcfz code and improve BCD_DIG_BYTE macro,
Jose Ricardo Ziviani <=