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qemu-e2k
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target: e2k: Add load instrs.

This commit is contained in:
Denis Drakhnia 2020-11-13 11:36:34 +02:00 committed by Denis Drakhnia
parent 7c4f2f0a3c
commit 1edcdfc743
2 changed files with 52 additions and 0 deletions
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1
target/e2k/translate.h
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@ -128,6 +128,7 @@ typedef struct DisasContext {
target_ulong npc;
bool is_call;
int call_ctpr;
int mmuidx;
int version;

51
target/e2k/translate/alc.c
View File

@ -353,6 +353,21 @@ static void gen_getsp(DisasContext *dc, int chan)
tcg_temp_free_i64(t0);
}
static void gen_ld(DisasContext *dc, int chan, MemOp memop)
{
uint32_t als = dc->bundle.als[chan];
TCGv_i64 src1 = get_src1(dc, als);
TCGv_i64 src2 = get_src2(dc, als);
TCGv_i64 t0 = tcg_temp_new_i64();
TCGv_i64 t1 = e2k_get_temp_i64(dc);
tcg_gen_add_i64(t0, src1, src2);
tcg_gen_qemu_ld_i64(t1, t0, dc->mmuidx, memop);
store_reg_alc_result(dc, chan, t1);
tcg_temp_free_i64(t0);
}
static void gen_op2_i32(TCGv_i64 ret, TCGv_i64 s1, TCGv_i64 s2, TCGv_i64 dst,
void (*op)(TCGv_i32, TCGv_i32, TCGv_i32))
{
@ -490,6 +505,42 @@ static void gen_alopf_simple(DisasContext *dc, int chan)
case 0x40: // TODO: udivs used as temporary UD
e2k_gen_exception(dc, E2K_EXCP_UNIMPL);
break;
case 0x64: { /* ldb */
if (chan == 2 || chan == 5) {
/* TODO: exception */
abort();
} else {
gen_ld(dc, chan, MO_UB);
}
break;
}
case 0x65: { /* ldh */
if (chan == 2 || chan == 5) {
/* TODO: exception */
abort();
} else {
gen_ld(dc, chan, MO_TEUW);
}
break;
}
case 0x66: { /* ldw */
if (chan == 2 || chan == 5) {
/* TODO: exception */
abort();
} else {
gen_ld(dc, chan, MO_TEUL);
}
break;
}
case 0x67: { /* ldd */
if (chan == 2 || chan == 5) {
/* TODO: exception */
abort();
} else {
gen_ld(dc, chan, MO_TEQ);
}
break;
}
default:
qemu_log_mask(LOG_UNIMP, "gen_alc: undefined instruction 0x%x %s\n", opc, sm ? "(speculative)" : "");
break;