OpenE2K/qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

target: e2k: add lzcnt and popcnt instrs (untested!)

Browse Source
This commit is contained in:
Alibek Omarov 2020-12-03 17:20:36 +03:00 committed by Denis Drakhnya
parent 42bbd58714
commit 3d6f245d89
1 changed files with 23 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
target/e2k/translate/alc.c
View File

@ -537,6 +537,13 @@ static void gen_bitrevd(TCGv_i64 ret, TCGv_i64 src1) {
tcg_temp_free_i64(ltemp0);
}
static void gen_lzcnts(TCGv_i32 ret, TCGv_i32 src1) {
tcg_gen_clzi_i32(ret, src1, 32);
}
static void gen_lzcntd(TCGv_i64 ret, TCGv_i64 src1) {
tcg_gen_clzi_i64(ret, src1, 64);
}
static TCGCond e2k_gen_cmp_op(unsigned int cmp_op)
{
@ -1625,33 +1632,41 @@ static void execute_alopf_simple(DisasContext *dc, int chan)
gen_movtd(dc, chan);
}
break;
case 0x64: { /* ldb */
if (is_load_chan(chan)) {
case 0x64: {
if (is_load_chan(chan)) { /* ldb */
gen_ld(dc, chan, MO_UB);
} else if (alopf2_opce == 0xc0) { /* lzcnts */
gen_alopf2_i32(dc, chan, gen_lzcnts);
} else {
abort();
}
break;
}
case 0x65: { /* ldh */
if (is_load_chan(chan)) {
case 0x65: {
if (is_load_chan(chan)) { /* ldh */
gen_ld(dc, chan, MO_UW);
} else if (alopf2_opce == 0xc0) { /* lzcntd */
gen_alopf2_i64(dc, chan, gen_lzcntd);
} else {
abort();
}
break;
}
case 0x66: { /* ldw */
if (is_load_chan(chan)) {
case 0x66: {
if (is_load_chan(chan)) { /* ldw */
gen_ld(dc, chan, MO_UL);
} else if (alopf2_opce == 0xc0) { /* popcnts */
gen_alopf2_i32(dc, chan, tcg_gen_ctpop_i32);
} else {
abort();
}
break;
}
case 0x67: { /* ldd */
if (is_load_chan(chan)) {
case 0x67: {
if (is_load_chan(chan)) { /* ldd */
gen_ld(dc, chan, MO_Q);
} else if (alopf2_opce == 0xc0) { /* popcntd */
gen_alopf2_i64(dc, chan, tcg_gen_ctpop_i64);
} else {
abort();
}