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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-05-30 16:52:07 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-05-30 16:52:17 +0200 |
| commit | 9260319e7411ff8281700a532caa436f40120ec4 (patch) | |
| tree | 2f6bfe5f3458dd49d328d3a9eb508595450adec0 /gitlab/issues/target_m68k/host_missing/accel_missing/2499.toml | |
| parent | 225caa38269323af1bfc2daadff5ec8bd930747f (diff) | |
| download | qemu-analysis-9260319e7411ff8281700a532caa436f40120ec4.tar.gz qemu-analysis-9260319e7411ff8281700a532caa436f40120ec4.zip | |
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Diffstat (limited to 'gitlab/issues/target_m68k/host_missing/accel_missing/2499.toml')
| -rw-r--r-- | gitlab/issues/target_m68k/host_missing/accel_missing/2499.toml | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/gitlab/issues/target_m68k/host_missing/accel_missing/2499.toml b/gitlab/issues/target_m68k/host_missing/accel_missing/2499.toml deleted file mode 100644 index dd075afdb..000000000 --- a/gitlab/issues/target_m68k/host_missing/accel_missing/2499.toml +++ /dev/null @@ -1,42 +0,0 @@ -id = 2499 -title = "m68k: fpu: fsave/frestore should be enabled for 68020/68030" -state = "opened" -created_at = "2024-08-13T02:40:22.614Z" -closed_at = "n/a" -labels = ["target: m68k", "workflow::Confirmed"] -url = "https://gitlab.com/qemu-project/qemu/-/issues/2499" -host-os = "n/a" -host-arch = "n/a" -qemu-version = "n/a" -guest-os = "n/a" -guest-arch = "n/a" -description = """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); -```""" -reproduce = "n/a" -additional = "n/a" |