OpenE2K/qemu-e2k
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e2k: fpu: implement float combined instrs

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This commit is contained in:
Alibek Omarov 2020-12-28 01:19:55 +03:00 committed by Denis Drakhnia
parent 66293fd843
commit ed20953a35
1 changed files with 187 additions and 0 deletions
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187
target/e2k/translate/alc.c
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@ -2373,6 +2373,38 @@ static void gen_alopf21_i32(DisasContext *ctx, Instr *instr,
gen_al_result_i32(ctx, instr->chan, dst, tag);
}
static void gen_alopf21_comb_i64_env(DisasContext *ctx, Instr *instr,
void (*op1)(TCGv_i64, TCGv_ptr, TCGv_i64, TCGv_i64),
void (*op2)(TCGv_i64, TCGv_ptr, TCGv_i64, TCGv_i64))
{
Src64 s1 = get_src1_i64(ctx, instr->chan);
Src64 s2 = get_src2_i64(ctx, instr->chan);
Src64 s3 = get_src3_i64(ctx, instr->chan);
TCGv_i32 tag = e2k_get_temp_i32(ctx);
TCGv_i64 dst = e2k_get_temp_i64(ctx);
gen_tag3_i64(tag, s1.tag, s2.tag, s3.tag);
(*op1)(dst, cpu_env, s1.value, s2.value);
(*op2)(dst, cpu_env, dst, s3.value);
gen_al_result_i64(ctx, instr->chan, dst, tag);
}
static void gen_alopf21_comb_i32_env(DisasContext *ctx, Instr *instr,
void (*op1)(TCGv_i32, TCGv_ptr, TCGv_i32, TCGv_i32),
void (*op2)(TCGv_i32, TCGv_ptr, TCGv_i32, TCGv_i32))
{
Src32 s1 = get_src1_i32(ctx, instr->chan);
Src32 s2 = get_src2_i32(ctx, instr->chan);
Src32 s3 = get_src3_i32(ctx, instr->chan);
TCGv_i32 tag = e2k_get_temp_i32(ctx);
TCGv_i32 dst = e2k_get_temp_i32(ctx);
gen_tag3_i32(tag, s1.tag, s2.tag, s3.tag);
(*op1)(dst, cpu_env, s1.value, s2.value);
(*op2)(dst, cpu_env, dst, s3.value);
gen_al_result_i32(ctx, instr->chan, dst, tag);
}
static void gen_alopf2_i32(DisasContext *ctx, int chan, void (*op)(TCGv_i32, TCGv_i32))
{
Src32 s2 = get_src2_i32(ctx, chan);
@ -3930,6 +3962,159 @@ static void gen_icmb3(DisasContext *ctx, Instr *instr)
}
}
static void execute_fcomb_i64(DisasContext *ctx, Instr *instr)
{
int opc1 = instr->opc1 & 0x1f;
int opc2 = instr->opc1 & 0x20;
Src64 s1 = get_src1_i64(ctx, instr->chan);
Src64 s2 = get_src2_i64(ctx, instr->chan);
Src64 s3 = get_src3_i64(ctx, instr->chan);
TCGv_i32 tag = e2k_get_temp_i32(ctx);
TCGv_i64 dst = e2k_get_temp_i64(ctx);
gen_tag3_i64(tag, s1.tag, s2.tag, s3.tag);
switch(opc1) {
case 0x0:
/* fadd_{op}d */
if ((ctx->version >= 2 && is_chan_0134(instr->chan)) || ctx->version >= 4) {
gen_helper_faddd(dst, cpu_env, s1.value, s2.value);
break;
}
goto gen_illopc;
case 0x2:
/* fsub_{op}d */
if ((ctx->version >= 2 && is_chan_0134(instr->chan)) || ctx->version >= 4) {
gen_helper_fsubd(dst, cpu_env, s1.value, s2.value);
break;
}
goto gen_illopc;
case 0x8:
/* fmul_{op}d */
if(is_chan_0134(instr->chan) || ctx->version >= 4) {
gen_helper_fmuld(dst, cpu_env, s1.value, s2.value);
break;
}
goto gen_illopc;
default:
goto gen_illopc;
}
switch(opc2) {
case 0x00:
if (instr->opc2 == FCMB0) {
/* f{op}_addd */
gen_helper_faddd(dst, cpu_env, dst, s3.value);
break;
} else if (ctx->version == 1 && instr->opc2 == FCMB1) {
/* f{op}_muld */
gen_helper_fmuld(dst, cpu_env, dst, s3.value);
break;
}
goto gen_illopc;
case 0x20:
if (instr->opc2 == FCMB0) {
/* f{op}_subd */
gen_helper_fsubd(dst, cpu_env, dst, s3.value);
break;
} else if (instr->opc2 == FCMB1) {
/* f{op}_rsubd */
gen_helper_fsubd(dst, cpu_env, s3.value, dst);
break;
}
goto gen_illopc;
default:
goto gen_illopc;
}
gen_al_result_i64(ctx, instr->chan, dst, tag);
return;
gen_illopc:
e2k_tr_gen_exception(ctx, E2K_EXCP_ILLOPC);
}
static void execute_fcomb_i32(DisasContext *ctx, Instr *instr)
{
int opc1 = instr->opc1 & 0x1f;
int opc2 = instr->opc1 & 0x20;
Src32 s1 = get_src1_i32(ctx, instr->chan);
Src32 s2 = get_src2_i32(ctx, instr->chan);
Src32 s3 = get_src3_i32(ctx, instr->chan);
TCGv_i32 tag = e2k_get_temp_i32(ctx);
TCGv_i32 dst = e2k_get_temp_i32(ctx);
gen_tag3_i32(tag, s1.tag, s2.tag, s3.tag);
switch(opc1) {
case 0x0:
/* fadd_{op}s */
if ((ctx->version >= 2 && is_chan_0134(instr->chan)) || ctx->version >= 4) {
gen_helper_fadds(dst, cpu_env, s1.value, s2.value);
break;
}
goto gen_illopc;
case 0x2:
/* fsub_{op}s */
if ((ctx->version >= 2 && is_chan_0134(instr->chan)) || ctx->version >= 4) {
gen_helper_fsubs(dst, cpu_env, s1.value, s2.value);
break;
}
goto gen_illopc;
case 0x8:
/* fmul_{op}s */
if(is_chan_0134(instr->chan) || ctx->version >= 4) {
gen_helper_fmuls(dst, cpu_env, s1.value, s2.value);
break;
}
goto gen_illopc;
default:
goto gen_illopc;
}
switch(opc2) {
case 0x00:
if (instr->opc2 == FCMB0) {
/* f{op}_adds */
gen_helper_fadds(dst, cpu_env, dst, s3.value);
break;
} else if (ctx->version == 1 && instr->opc2 == FCMB1) {
/* f{op}_muls */
gen_helper_fmuls(dst, cpu_env, dst, s3.value);
break;
}
goto gen_illopc;
case 0x20:
if (instr->opc2 == FCMB0) {
/* f{op}_subs */
gen_helper_fsubs(dst, cpu_env, dst, s3.value);
break;
} else if (instr->opc2 == FCMB1) {
/* f{op}_rsubs */
gen_helper_fsubs(dst, cpu_env, s3.value, dst);
break;
}
goto gen_illopc;
default:
goto gen_illopc;
}
gen_al_result_i32(ctx, instr->chan, dst, tag);
return;
gen_illopc:
e2k_tr_gen_exception(ctx, E2K_EXCP_ILLOPC);
}
static void gen_fcmb(DisasContext *ctx, Instr *instr)
{
if (instr->opc1 & 1) {
execute_fcomb_i64(ctx, instr);
} else {
execute_fcomb_i32(ctx, instr);
}
}
static void gen_pfcmb1(DisasContext *ctx, Instr *instr)
{
switch(instr->opc1) {
@ -4059,6 +4244,8 @@ static void chan_execute(DisasContext *ctx, int chan)
case ICMB1:
case ICMB2: gen_icmb012(ctx, &instr); break;
case ICMB3: gen_icmb3(ctx, &instr); break;
case FCMB0:
case FCMB1: gen_fcmb(ctx, &instr); break;
case PFCMB1: gen_pfcmb1(ctx, &instr); break;
default:
e2k_tr_gen_exception(ctx, E2K_EXCP_ILLOPC);