motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-09 02:24:58 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

Switch MIPS movf/movt to TCG.

Browse source 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4545 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2008-05-23 18:06:27 +00:00
parent e8996ee012
commit e214b9bb55
2 changed files with 23 additions and 24 deletions
Download patch file Download diff file Expand all files Collapse all files

15
target-mips/op.c
View file

@ -460,21 +460,6 @@ void op_dmultu (void)
} }
#endif #endif
/* Conditional moves */
void op_movf (void)
{
if (!(env->fpu->fcr31 & PARAM1))
T0 = T1;
FORCE_RET();
}
void op_movt (void)
{
if (env->fpu->fcr31 & PARAM1)
T0 = T1;
FORCE_RET();
}
/* CP0 functions */ /* CP0 functions */
void op_mfc0_index (void) void op_mfc0_index (void)
{ {

32
target-mips/translate.c
View file

@ -5450,19 +5450,33 @@ static void gen_cp1 (DisasContext *ctx, uint32_t opc, int rt, int fs)
static void gen_movci (DisasContext *ctx, int rd, int rs, int cc, int tf) static void gen_movci (DisasContext *ctx, int rd, int rs, int cc, int tf)
{ {
TCGv r_ptr = tcg_temp_new(TCG_TYPE_PTR);
TCGv r_tmp = new_tmp();
TCGv t0 = tcg_temp_new(TCG_TYPE_TL);
TCGv t1 = tcg_temp_new(TCG_TYPE_TL);
int l1 = gen_new_label();
uint32_t ccbit; uint32_t ccbit;
TCGCond cond;
gen_load_gpr(cpu_T[0], rd); if (cc)
gen_load_gpr(cpu_T[1], rs);
if (cc) {
ccbit = 1 << (24 + cc); ccbit = 1 << (24 + cc);
} else
ccbit = 1 << 23;
if (!tf)
gen_op_movf(ccbit);
else else
gen_op_movt(ccbit); ccbit = 1 << 23;
gen_store_gpr(cpu_T[0], rd); if (tf)
cond = TCG_COND_NE;
else
cond = TCG_COND_EQ;
gen_load_gpr(t0, rd);
gen_load_gpr(t1, rs);
tcg_gen_ld_ptr(r_ptr, cpu_env, offsetof(CPUState, fpu));
tcg_gen_ld_i32(r_tmp, r_ptr, offsetof(CPUMIPSFPUContext, fcr31));
tcg_gen_andi_i32(r_tmp, r_tmp, ccbit);
tcg_gen_brcond_i32(cond, r_tmp, tcg_const_i32(0), l1);
tcg_gen_mov_tl(t0, t1);
gen_set_label(l1);
dead_tmp(r_tmp);
gen_store_gpr(t0, rd);
} }
#define GEN_MOVCF(fmt) \ #define GEN_MOVCF(fmt) \