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target-hppa: Implement system and memory-management insns 

Signed-off-by: Richard Henderson <rth@twiddle.net>
master
Richard Henderson 2016-12-15 14:59:03 -08:00
parent 96d6407f36
commit 98a9cb792c
3 changed files with 219 additions and 0 deletions
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3
target/hppa/helper.h
View File

@ -5,4 +5,7 @@ DEF_HELPER_FLAGS_2(tcond, TCG_CALL_NO_WG, void, env, tl)
DEF_HELPER_FLAGS_3(stby_b, TCG_CALL_NO_WG, void, env, tl, tl)
DEF_HELPER_FLAGS_3(stby_e, TCG_CALL_NO_WG, void, env, tl, tl)
DEF_HELPER_FLAGS_1(probe_r, TCG_CALL_NO_RWG_SE, tl, tl)
DEF_HELPER_FLAGS_1(probe_w, TCG_CALL_NO_RWG_SE, tl, tl)
DEF_HELPER_FLAGS_1(loaded_fr0, TCG_CALL_NO_RWG, void, env)

10
target/hppa/op_helper.c
View File

@ -132,6 +132,16 @@ void HELPER(stby_e)(CPUHPPAState *env, target_ulong addr, target_ulong val)
}
}
target_ulong HELPER(probe_r)(target_ulong addr)
{
return page_check_range(addr, 1, PAGE_READ);
}
target_ulong HELPER(probe_w)(target_ulong addr)
{
return page_check_range(addr, 1, PAGE_WRITE);
}
void HELPER(loaded_fr0)(CPUHPPAState *env)
{
uint32_t shadow = env->fr[0] >> 32;

206
target/hppa/translate.c
View File

@ -1465,6 +1465,208 @@ static ExitStatus trans_nop(DisasContext *ctx, uint32_t insn,
return NO_EXIT;
}
static ExitStatus trans_break(DisasContext *ctx, uint32_t insn,
const DisasInsn *di)
{
nullify_over(ctx);
return nullify_end(ctx, gen_excp(ctx, EXCP_DEBUG));
}
static ExitStatus trans_sync(DisasContext *ctx, uint32_t insn,
const DisasInsn *di)
{
/* No point in nullifying the memory barrier. */
tcg_gen_mb(TCG_BAR_SC | TCG_MO_ALL);
cond_free(&ctx->null_cond);
return NO_EXIT;
}
static ExitStatus trans_mfia(DisasContext *ctx, uint32_t insn,
const DisasInsn *di)
{
unsigned rt = extract32(insn, 0, 5);
TCGv tmp = dest_gpr(ctx, rt);
tcg_gen_movi_tl(tmp, ctx->iaoq_f);
save_gpr(ctx, rt, tmp);
cond_free(&ctx->null_cond);
return NO_EXIT;
}
static ExitStatus trans_mfsp(DisasContext *ctx, uint32_t insn,
const DisasInsn *di)
{
unsigned rt = extract32(insn, 0, 5);
TCGv tmp = dest_gpr(ctx, rt);
/* ??? We don't implement space registers. */
tcg_gen_movi_tl(tmp, 0);
save_gpr(ctx, rt, tmp);
cond_free(&ctx->null_cond);
return NO_EXIT;
}
static ExitStatus trans_mfctl(DisasContext *ctx, uint32_t insn,
const DisasInsn *di)
{
unsigned rt = extract32(insn, 0, 5);
unsigned ctl = extract32(insn, 21, 5);
TCGv tmp;
switch (ctl) {
case 11: /* SAR */
#ifdef TARGET_HPPA64
if (extract32(insn, 14, 1) == 0) {
/* MFSAR without ,W masks low 5 bits. */
tmp = dest_gpr(ctx, rt);
tcg_gen_andi_tl(tmp, cpu_sar, 31);
save_gpr(ctx, rt, tmp);
break;
}
#endif
save_gpr(ctx, rt, cpu_sar);
break;
case 16: /* Interval Timer */
tmp = dest_gpr(ctx, rt);
tcg_gen_movi_tl(tmp, 0); /* FIXME */
save_gpr(ctx, rt, tmp);
break;
case 26:
save_gpr(ctx, rt, cpu_cr26);
break;
case 27:
save_gpr(ctx, rt, cpu_cr27);
break;
default:
/* All other control registers are privileged. */
return gen_illegal(ctx);
}
cond_free(&ctx->null_cond);
return NO_EXIT;
}
static ExitStatus trans_mtctl(DisasContext *ctx, uint32_t insn,
const DisasInsn *di)
{
unsigned rin = extract32(insn, 16, 5);
unsigned ctl = extract32(insn, 21, 5);
TCGv tmp;
if (ctl == 11) { /* SAR */
tmp = tcg_temp_new();
tcg_gen_andi_tl(tmp, load_gpr(ctx, rin), TARGET_LONG_BITS - 1);
save_or_nullify(ctx, cpu_sar, tmp);
tcg_temp_free(tmp);
} else {
/* All other control registers are privileged or read-only. */
return gen_illegal(ctx);
}
cond_free(&ctx->null_cond);
return NO_EXIT;
}
static ExitStatus trans_mtsarcm(DisasContext *ctx, uint32_t insn,
const DisasInsn *di)
{
unsigned rin = extract32(insn, 16, 5);
TCGv tmp = tcg_temp_new();
tcg_gen_not_tl(tmp, load_gpr(ctx, rin));
tcg_gen_andi_tl(tmp, tmp, TARGET_LONG_BITS - 1);
save_or_nullify(ctx, cpu_sar, tmp);
tcg_temp_free(tmp);
cond_free(&ctx->null_cond);
return NO_EXIT;
}
static ExitStatus trans_ldsid(DisasContext *ctx, uint32_t insn,
const DisasInsn *di)
{
unsigned rt = extract32(insn, 0, 5);
TCGv dest = dest_gpr(ctx, rt);
/* Since we don't implement space registers, this returns zero. */
tcg_gen_movi_tl(dest, 0);
save_gpr(ctx, rt, dest);
cond_free(&ctx->null_cond);
return NO_EXIT;
}
static const DisasInsn table_system[] = {
{ 0x00000000u, 0xfc001fe0u, trans_break },
/* We don't implement space register, so MTSP is a nop. */
{ 0x00001820u, 0xffe01fffu, trans_nop },
{ 0x00001840u, 0xfc00ffffu, trans_mtctl },
{ 0x016018c0u, 0xffe0ffffu, trans_mtsarcm },
{ 0x000014a0u, 0xffffffe0u, trans_mfia },
{ 0x000004a0u, 0xffff1fe0u, trans_mfsp },
{ 0x000008a0u, 0xfc1fffe0u, trans_mfctl },
{ 0x00000400u, 0xffffffffu, trans_sync },
{ 0x000010a0u, 0xfc1f3fe0u, trans_ldsid },
};
static ExitStatus trans_base_idx_mod(DisasContext *ctx, uint32_t insn,
const DisasInsn *di)
{
unsigned rb = extract32(insn, 21, 5);
unsigned rx = extract32(insn, 16, 5);
TCGv dest = dest_gpr(ctx, rb);
TCGv src1 = load_gpr(ctx, rb);
TCGv src2 = load_gpr(ctx, rx);
/* The only thing we need to do is the base register modification. */
tcg_gen_add_tl(dest, src1, src2);
save_gpr(ctx, rb, dest);
cond_free(&ctx->null_cond);
return NO_EXIT;
}
static ExitStatus trans_probe(DisasContext *ctx, uint32_t insn,
const DisasInsn *di)
{
unsigned rt = extract32(insn, 0, 5);
unsigned rb = extract32(insn, 21, 5);
unsigned is_write = extract32(insn, 6, 1);
TCGv dest;
nullify_over(ctx);
/* ??? Do something with priv level operand. */
dest = dest_gpr(ctx, rt);
if (is_write) {
gen_helper_probe_w(dest, load_gpr(ctx, rb));
} else {
gen_helper_probe_r(dest, load_gpr(ctx, rb));
}
save_gpr(ctx, rt, dest);
return nullify_end(ctx, NO_EXIT);
}
static const DisasInsn table_mem_mgmt[] = {
{ 0x04003280u, 0xfc003fffu, trans_nop }, /* fdc, disp */
{ 0x04001280u, 0xfc003fffu, trans_nop }, /* fdc, index */
{ 0x040012a0u, 0xfc003fffu, trans_base_idx_mod }, /* fdc, index, base mod */
{ 0x040012c0u, 0xfc003fffu, trans_nop }, /* fdce */
{ 0x040012e0u, 0xfc003fffu, trans_base_idx_mod }, /* fdce, base mod */
{ 0x04000280u, 0xfc001fffu, trans_nop }, /* fic 0a */
{ 0x040002a0u, 0xfc001fffu, trans_base_idx_mod }, /* fic 0a, base mod */
{ 0x040013c0u, 0xfc003fffu, trans_nop }, /* fic 4f */
{ 0x040013e0u, 0xfc003fffu, trans_base_idx_mod }, /* fic 4f, base mod */
{ 0x040002c0u, 0xfc001fffu, trans_nop }, /* fice */
{ 0x040002e0u, 0xfc001fffu, trans_base_idx_mod }, /* fice, base mod */
{ 0x04002700u, 0xfc003fffu, trans_nop }, /* pdc */
{ 0x04002720u, 0xfc003fffu, trans_base_idx_mod }, /* pdc, base mod */
{ 0x04001180u, 0xfc003fa0u, trans_probe }, /* probe */
{ 0x04003180u, 0xfc003fa0u, trans_probe }, /* probei */
};
static ExitStatus trans_add(DisasContext *ctx, uint32_t insn,
const DisasInsn *di)
{
@ -2711,6 +2913,10 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
uint32_t opc = extract32(insn, 26, 6);
switch (opc) {
case 0x00: /* system op */
return translate_table(ctx, insn, table_system);
case 0x01:
return translate_table(ctx, insn, table_mem_mgmt);
case 0x02:
return translate_table(ctx, insn, table_arith_log);
case 0x03: