diff options
Diffstat (limited to 'gitlab/issues_text/target_m68k/host_missing/accel_missing/2499')
| -rw-r--r-- | gitlab/issues_text/target_m68k/host_missing/accel_missing/2499 | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/gitlab/issues_text/target_m68k/host_missing/accel_missing/2499 b/gitlab/issues_text/target_m68k/host_missing/accel_missing/2499 deleted file mode 100644 index 19ff522d0..000000000 --- a/gitlab/issues_text/target_m68k/host_missing/accel_missing/2499 +++ /dev/null @@ -1,30 +0,0 @@ -m68k: fpu: fsave/frestore should be enabled for 68020/68030 -Description of problem: -valid 68020/68030 code can use `fsave`/`frestore` instructions to save/restore the state of an external 68881/68882 but currently QEMU only allows these instructions on 68040 and everyone else gets an f-line exception. - -I guess something like this to allow frestore/fsave. m68k programmers reference manual says they are 68881/68882/68040 and there don's seem to be any differences. - -``` diff -diff --git a/target/m68k/translate.c b/target/m68k/translate.c -index d5d2322329..92dc9d8563 100644 ---- a/target/m68k/translate.c -+++ b/target/m68k/translate.c -@@ -5455,7 +5455,7 @@ DISAS_INSN(frestore) - gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); - return; - } -- if (m68k_feature(s->env, M68K_FEATURE_M68040)) { -+ if (m68k_feature(s->env, M68K_FEATURE_FPU)) { - SRC_EA(env, addr, OS_LONG, 0, NULL); - /* FIXME: check the state frame */ - } else { -@@ -5472,7 +5472,7 @@ DISAS_INSN(fsave) - return; - } - -- if (m68k_feature(s->env, M68K_FEATURE_M68040)) { -+ if (m68k_feature(s->env, M68K_FEATURE_FPU)) { - /* always write IDLE */ - TCGv idle = tcg_constant_i32(0x41000000); - DEST_EA(env, insn, OS_LONG, idle, NULL); -``` |