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target/ppc: use Vsr macros in BCD helpers 

This allows us to remove more endian-specific defines from int_helper.c.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20190926204453.31837-1-mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Mark Cave-Ayland 2019-09-26 21:44:53 +01:00 committed by David Gibson
parent e68cd0cb5c
commit 428115c3a9
1 changed files with 25 additions and 47 deletions
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72
target/ppc/int_helper.c
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@ -2052,15 +2052,11 @@ void helper_vsubecuq(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
#define NATIONAL_PLUS 0x2B
#define NATIONAL_NEG 0x2D
#if defined(HOST_WORDS_BIGENDIAN)
#define BCD_DIG_BYTE(n) (15 - ((n) / 2))
#else
#define BCD_DIG_BYTE(n) ((n) / 2)
#endif
static int bcd_get_sgn(ppc_avr_t *bcd)
{
switch (bcd->u8[BCD_DIG_BYTE(0)] & 0xF) {
switch (bcd->VsrB(BCD_DIG_BYTE(0)) & 0xF) {
case BCD_PLUS_PREF_1:
case BCD_PLUS_PREF_2:
case BCD_PLUS_ALT_1:
@ -2095,9 +2091,9 @@ static uint8_t bcd_get_digit(ppc_avr_t *bcd, int n, int *invalid)
{
uint8_t result;
if (n & 1) {
result = bcd->u8[BCD_DIG_BYTE(n)] >> 4;
result = bcd->VsrB(BCD_DIG_BYTE(n)) >> 4;
} else {
result = bcd->u8[BCD_DIG_BYTE(n)] & 0xF;
result = bcd->VsrB(BCD_DIG_BYTE(n)) & 0xF;
}
if (unlikely(result > 9)) {
@ -2109,11 +2105,11 @@ static uint8_t bcd_get_digit(ppc_avr_t *bcd, int n, int *invalid)
static void bcd_put_digit(ppc_avr_t *bcd, uint8_t digit, int n)
{
if (n & 1) {
bcd->u8[BCD_DIG_BYTE(n)] &= 0x0F;
bcd->u8[BCD_DIG_BYTE(n)] |= (digit << 4);
bcd->VsrB(BCD_DIG_BYTE(n)) &= 0x0F;
bcd->VsrB(BCD_DIG_BYTE(n)) |= (digit << 4);
} else {
bcd->u8[BCD_DIG_BYTE(n)] &= 0xF0;
bcd->u8[BCD_DIG_BYTE(n)] |= digit;
bcd->VsrB(BCD_DIG_BYTE(n)) &= 0xF0;
bcd->VsrB(BCD_DIG_BYTE(n)) |= digit;
}
}
@ -2228,21 +2224,21 @@ uint32_t helper_bcdadd(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t ps)
if (!invalid) {
if (sgna == sgnb) {
result.u8[BCD_DIG_BYTE(0)] = bcd_preferred_sgn(sgna, ps);
result.VsrB(BCD_DIG_BYTE(0)) = bcd_preferred_sgn(sgna, ps);
bcd_add_mag(&result, a, b, &invalid, &overflow);
cr = bcd_cmp_zero(&result);
} else {
int magnitude = bcd_cmp_mag(a, b);
if (magnitude > 0) {
result.u8[BCD_DIG_BYTE(0)] = bcd_preferred_sgn(sgna, ps);
result.VsrB(BCD_DIG_BYTE(0)) = bcd_preferred_sgn(sgna, ps);
bcd_sub_mag(&result, a, b, &invalid, &overflow);
cr = (sgna > 0) ? CRF_GT : CRF_LT;
} else if (magnitude < 0) {
result.u8[BCD_DIG_BYTE(0)] = bcd_preferred_sgn(sgnb, ps);
result.VsrB(BCD_DIG_BYTE(0)) = bcd_preferred_sgn(sgnb, ps);
bcd_sub_mag(&result, b, a, &invalid, &overflow);
cr = (sgnb > 0) ? CRF_GT : CRF_LT;
} else {
result.u8[BCD_DIG_BYTE(0)] = bcd_preferred_sgn(0, ps);
result.VsrB(BCD_DIG_BYTE(0)) = bcd_preferred_sgn(0, ps);
cr = CRF_EQ;
}
}
@ -2353,15 +2349,15 @@ uint32_t helper_bcdcfz(ppc_avr_t *r, ppc_avr_t *b, uint32_t ps)
int zone_lead = ps ? 0xF : 0x3;
int digit = 0;
ppc_avr_t ret = { .u64 = { 0, 0 } };
int sgnb = b->u8[BCD_DIG_BYTE(0)] >> 4;
int sgnb = b->VsrB(BCD_DIG_BYTE(0)) >> 4;
if (unlikely((sgnb < 0xA) && ps)) {
invalid = 1;
}
for (i = 0; i < 16; i++) {
zone_digit = i ? b->u8[BCD_DIG_BYTE(i * 2)] >> 4 : zone_lead;
digit = b->u8[BCD_DIG_BYTE(i * 2)] & 0xF;
zone_digit = i ? b->VsrB(BCD_DIG_BYTE(i * 2)) >> 4 : zone_lead;
digit = b->VsrB(BCD_DIG_BYTE(i * 2)) & 0xF;
if (unlikely(zone_digit != zone_lead || digit > 0x9)) {
invalid = 1;
break;
@ -2407,7 +2403,7 @@ uint32_t helper_bcdctz(ppc_avr_t *r, ppc_avr_t *b, uint32_t ps)
break;
}
ret.u8[BCD_DIG_BYTE(i * 2)] = zone_lead + digit;
ret.VsrB(BCD_DIG_BYTE(i * 2)) = zone_lead + digit;
}
if (ps) {
@ -2519,7 +2515,7 @@ uint32_t helper_bcdcpsgn(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t ps)
}
*r = *a;
bcd_put_digit(r, b->u8[BCD_DIG_BYTE(0)] & 0xF, 0);
bcd_put_digit(r, b->VsrB(BCD_DIG_BYTE(0)) & 0xF, 0);
for (i = 1; i < 32; i++) {
bcd_get_digit(a, i, &invalid);
@ -2549,11 +2545,7 @@ uint32_t helper_bcdsetsgn(ppc_avr_t *r, ppc_avr_t *b, uint32_t ps)
uint32_t helper_bcds(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t ps)
{
int cr;
#if defined(HOST_WORDS_BIGENDIAN)
int i = a->s8[7];
#else
int i = a->s8[8];
#endif
int i = a->VsrSB(7);
bool ox_flag = false;
int sgnb = bcd_get_sgn(b);
ppc_avr_t ret = *b;
@ -2602,11 +2594,7 @@ uint32_t helper_bcdus(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t ps)
}
}
#if defined(HOST_WORDS_BIGENDIAN)
i = a->s8[7];
#else
i = a->s8[8];
#endif
i = a->VsrSB(7);
if (i >= 32) {
ox_flag = true;
ret.VsrD(1) = ret.VsrD(0) = 0;
@ -2637,13 +2625,11 @@ uint32_t helper_bcdsr(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t ps)
ppc_avr_t ret = *b;
ret.VsrD(1) &= ~0xf;
#if defined(HOST_WORDS_BIGENDIAN)
int i = a->s8[7];
ppc_avr_t bcd_one = { .u64 = { 0, 0x10 } };
#else
int i = a->s8[8];
ppc_avr_t bcd_one = { .u64 = { 0x10, 0 } };
#endif
int i = a->VsrSB(7);
ppc_avr_t bcd_one;
bcd_one.VsrD(0) = 0;
bcd_one.VsrD(1) = 0x10;
if (bcd_is_valid(b) == false) {
return CRF_SO;
@ -2679,11 +2665,7 @@ uint32_t helper_bcdtrunc(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t ps)
{
uint64_t mask;
uint32_t ox_flag = 0;
#if defined(HOST_WORDS_BIGENDIAN)
int i = a->s16[3] + 1;
#else
int i = a->s16[4] + 1;
#endif
int i = a->VsrSH(3) + 1;
ppc_avr_t ret = *b;
if (bcd_is_valid(b) == false) {
@ -2728,11 +2710,7 @@ uint32_t helper_bcdutrunc(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t ps)
}
}
#if defined(HOST_WORDS_BIGENDIAN)
i = a->s16[3];
#else
i = a->s16[4];
#endif
i = a->VsrSH(3);
if (i > 16 && i < 33) {
mask = (uint64_t)-1 >> (128 - i * 4);
if (ret.VsrD(0) & ~mask) {