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target/ppc: Move mffs[.] to decodetree 

Signed-off-by: Víctor Colombo <victor.colombo@eldorado.org.br>
Reviewed-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20220629162904.105060-6-victor.colombo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
Víctor Colombo 2022-06-29 13:28:58 -03:00 committed by Daniel Henrique Barboza
parent 3e5bce70ef
commit f80d04d548
3 changed files with 21 additions and 19 deletions
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4
target/ppc/insn32.decode
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@ -100,6 +100,9 @@
&X_tb rt rb
@X_tb ...... rt:5 ..... rb:5 .......... . &X_tb
&X_t_rc rt rc:bool
@X_t_rc ...... rt:5 ..... ..... .......... rc:1 &X_t_rc
&X_tb_rc rt rb rc:bool
@X_tb_rc ...... rt:5 ..... rb:5 .......... rc:1 &X_tb_rc
@ -342,6 +345,7 @@ SETNBCR 011111 ..... ..... ----- 0111100000 - @X_bi
### Move To/From FPSCR
MFFS 111111 ..... 00000 ----- 1001000111 . @X_t_rc
MFFSCE 111111 ..... 00001 ----- 1001000111 - @X_t
MFFSCRN 111111 ..... 10110 ..... 1001000111 - @X_tb
MFFSCRNI 111111 ..... 10111 ---.. 1001000111 - @X_imm2

35
target/ppc/translate/fp-impl.c.inc
View File

@ -615,24 +615,6 @@ static void gen_mcrfs(DisasContext *ctx)
tcg_temp_free_i64(tnew_fpscr);
}
/* mffs */
static void gen_mffs(DisasContext *ctx)
{
TCGv_i64 t0;
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
t0 = tcg_temp_new_i64();
gen_reset_fpstatus();
tcg_gen_extu_tl_i64(t0, cpu_fpscr);
set_fpr(rD(ctx->opcode), t0);
if (unlikely(Rc(ctx->opcode))) {
gen_set_cr1_from_fpscr(ctx);
}
tcg_temp_free_i64(t0);
}
static TCGv_i64 place_from_fpscr(int rt, uint64_t mask)
{
TCGv_i64 fpscr = tcg_temp_new_i64();
@ -660,6 +642,23 @@ static void store_fpscr_masked(TCGv_i64 fpscr, uint64_t clear_mask,
tcg_temp_free_i64(fpscr_masked);
}
static bool trans_MFFS(DisasContext *ctx, arg_X_t_rc *a)
{
TCGv_i64 fpscr;
REQUIRE_FPU(ctx);
gen_reset_fpstatus();
fpscr = place_from_fpscr(a->rt, UINT64_MAX);
if (a->rc) {
gen_set_cr1_from_fpscr(ctx);
}
tcg_temp_free_i64(fpscr);
return true;
}
static bool trans_MFFSCE(DisasContext *ctx, arg_X_t *a)
{
TCGv_i64 fpscr;

1
target/ppc/translate/fp-ops.c.inc
View File

@ -74,7 +74,6 @@ GEN_HANDLER_E(fcpsgn, 0x3F, 0x08, 0x00, 0x00000000, PPC_NONE, PPC2_ISA205),
GEN_HANDLER_E(fmrgew, 0x3F, 0x06, 0x1E, 0x00000001, PPC_NONE, PPC2_VSX207),
GEN_HANDLER_E(fmrgow, 0x3F, 0x06, 0x1A, 0x00000001, PPC_NONE, PPC2_VSX207),
GEN_HANDLER(mcrfs, 0x3F, 0x00, 0x02, 0x0063F801, PPC_FLOAT),
GEN_HANDLER_E_2(mffs, 0x3F, 0x07, 0x12, 0x00, 0x00000000, PPC_FLOAT, PPC_NONE),
GEN_HANDLER(mtfsb0, 0x3F, 0x06, 0x02, 0x001FF800, PPC_FLOAT),
GEN_HANDLER(mtfsb1, 0x3F, 0x06, 0x01, 0x001FF800, PPC_FLOAT),
GEN_HANDLER(mtfsf, 0x3F, 0x07, 0x16, 0x00000000, PPC_FLOAT),