diff options
Diffstat (limited to 'target/ppc')
| -rw-r--r-- | target/ppc/int_helper.c | 13 | ||||
| -rw-r--r-- | target/ppc/translate_init.c.inc | 36 |
2 files changed, 46 insertions, 3 deletions
diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c index 0b682a1f94..429de28494 100644 --- a/target/ppc/int_helper.c +++ b/target/ppc/int_helper.c @@ -2175,14 +2175,17 @@ static int bcd_cmp_mag(ppc_avr_t *a, ppc_avr_t *b) return 0; } -static void bcd_add_mag(ppc_avr_t *t, ppc_avr_t *a, ppc_avr_t *b, int *invalid, +static int bcd_add_mag(ppc_avr_t *t, ppc_avr_t *a, ppc_avr_t *b, int *invalid, int *overflow) { int carry = 0; int i; + int is_zero = 1; + for (i = 1; i <= 31; i++) { uint8_t digit = bcd_get_digit(a, i, invalid) + bcd_get_digit(b, i, invalid) + carry; + is_zero &= (digit == 0); if (digit > 9) { carry = 1; digit -= 10; @@ -2194,6 +2197,7 @@ static void bcd_add_mag(ppc_avr_t *t, ppc_avr_t *a, ppc_avr_t *b, int *invalid, } *overflow = carry; + return is_zero; } static void bcd_sub_mag(ppc_avr_t *t, ppc_avr_t *a, ppc_avr_t *b, int *invalid, @@ -2225,14 +2229,15 @@ uint32_t helper_bcdadd(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t ps) int sgnb = bcd_get_sgn(b); int invalid = (sgna == 0) || (sgnb == 0); int overflow = 0; + int zero = 0; uint32_t cr = 0; ppc_avr_t result = { .u64 = { 0, 0 } }; if (!invalid) { if (sgna == sgnb) { result.VsrB(BCD_DIG_BYTE(0)) = bcd_preferred_sgn(sgna, ps); - bcd_add_mag(&result, a, b, &invalid, &overflow); - cr = bcd_cmp_zero(&result); + zero = bcd_add_mag(&result, a, b, &invalid, &overflow); + cr = (sgna > 0) ? CRF_GT : CRF_LT; } else { int magnitude = bcd_cmp_mag(a, b); if (magnitude > 0) { @@ -2255,6 +2260,8 @@ uint32_t helper_bcdadd(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t ps) cr = CRF_SO; } else if (overflow) { cr |= CRF_SO; + } else if (zero) { + cr |= CRF_EQ; } *r = result; diff --git a/target/ppc/translate_init.c.inc b/target/ppc/translate_init.c.inc index 108ff2be2b..c03a7c4f52 100644 --- a/target/ppc/translate_init.c.inc +++ b/target/ppc/translate_init.c.inc @@ -566,35 +566,71 @@ static void spr_write_601_ubatl(DisasContext *ctx, int sprn, int gprn) #if !defined(CONFIG_USER_ONLY) static void spr_read_40x_pit(DisasContext *ctx, int gprn, int sprn) { + if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) { + gen_io_start(); + } gen_helper_load_40x_pit(cpu_gpr[gprn], cpu_env); + if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) { + gen_stop_exception(ctx); + } } static void spr_write_40x_pit(DisasContext *ctx, int sprn, int gprn) { + if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) { + gen_io_start(); + } gen_helper_store_40x_pit(cpu_env, cpu_gpr[gprn]); + if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) { + gen_stop_exception(ctx); + } } static void spr_write_40x_dbcr0(DisasContext *ctx, int sprn, int gprn) { + if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) { + gen_io_start(); + } gen_store_spr(sprn, cpu_gpr[gprn]); gen_helper_store_40x_dbcr0(cpu_env, cpu_gpr[gprn]); /* We must stop translation as we may have rebooted */ gen_stop_exception(ctx); + if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) { + gen_stop_exception(ctx); + } } static void spr_write_40x_sler(DisasContext *ctx, int sprn, int gprn) { + if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) { + gen_io_start(); + } gen_helper_store_40x_sler(cpu_env, cpu_gpr[gprn]); + if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) { + gen_stop_exception(ctx); + } } static void spr_write_booke_tcr(DisasContext *ctx, int sprn, int gprn) { + if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) { + gen_io_start(); + } gen_helper_store_booke_tcr(cpu_env, cpu_gpr[gprn]); + if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) { + gen_stop_exception(ctx); + } } static void spr_write_booke_tsr(DisasContext *ctx, int sprn, int gprn) { + if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) { + gen_io_start(); + } gen_helper_store_booke_tsr(cpu_env, cpu_gpr[gprn]); + if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) { + gen_stop_exception(ctx); + } } #endif |