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[Qemu-devel] [PATCH v6 12/17] target/m68k: implement fsave/frestore
From: |
Laurent Vivier |
Subject: |
[Qemu-devel] [PATCH v6 12/17] target/m68k: implement fsave/frestore |
Date: |
Wed, 3 Jan 2018 00:41:03 +0100 |
Signed-off-by: Laurent Vivier <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
---
target/m68k/translate.c | 23 +++++++++++++++--------
1 file changed, 15 insertions(+), 8 deletions(-)
diff --git a/target/m68k/translate.c b/target/m68k/translate.c
index 69bd347a70..baaa260875 100644
--- a/target/m68k/translate.c
+++ b/target/m68k/translate.c
@@ -5104,28 +5104,35 @@ DISAS_INSN(fscc)
#if defined(CONFIG_SOFTMMU)
DISAS_INSN(frestore)
{
- M68kCPU *cpu = m68k_env_get_cpu(env);
+ TCGv addr;
if (IS_USER(s)) {
gen_exception(s, s->insn_pc, EXCP_PRIVILEGE);
return;
}
-
- /* TODO: Implement frestore. */
- cpu_abort(CPU(cpu), "FRESTORE not implemented");
+ if (m68k_feature(s->env, M68K_FEATURE_M68040)) {
+ SRC_EA(env, addr, OS_LONG, 0, NULL);
+ /* FIXME: check the state frame */
+ } else {
+ disas_undef(env, s, insn);
+ }
}
DISAS_INSN(fsave)
{
- M68kCPU *cpu = m68k_env_get_cpu(env);
-
if (IS_USER(s)) {
gen_exception(s, s->insn_pc, EXCP_PRIVILEGE);
return;
}
- /* TODO: Implement fsave. */
- cpu_abort(CPU(cpu), "FSAVE not implemented");
+ if (m68k_feature(s->env, M68K_FEATURE_M68040)) {
+ /* always write IDLE */
+ TCGv idle = tcg_const_i32(0x41000000);
+ DEST_EA(env, insn, OS_LONG, idle, NULL);
+ tcg_temp_free(idle);
+ } else {
+ disas_undef(env, s, insn);
+ }
}
#endif
--
2.14.3
- [Qemu-devel] [PATCH v6 05/17] target/m68k: add CPU_LOG_INT trace, (continued)
- [Qemu-devel] [PATCH v6 12/17] target/m68k: implement fsave/frestore,
Laurent Vivier <=
- [Qemu-devel] [PATCH v6 10/17] target/m68k: add cpush/cinv, Laurent Vivier, 2018/01/02
- [Qemu-devel] [PATCH v6 11/17] target/m68k: add reset, Laurent Vivier, 2018/01/02
- [Qemu-devel] [PATCH v6 09/17] target/m68k: softmmu cleanup, Laurent Vivier, 2018/01/02
- [Qemu-devel] [PATCH v6 13/17] target/m68k: move CCR/SR functions, Laurent Vivier, 2018/01/02
- [Qemu-devel] [PATCH v6 14/17] target/m68k: add 680x0 "move to SR" instruction, Laurent Vivier, 2018/01/02
- [Qemu-devel] [PATCH v6 15/17] target/m68k: add andi/ori/eori to SR/CCR, Laurent Vivier, 2018/01/02
- [Qemu-devel] [PATCH v6 16/17] target/m68k: add the Interrupt Stack Pointer, Laurent Vivier, 2018/01/02
- [Qemu-devel] [PATCH v6 17/17] target/m68k: fix m68k_cpu_dump_state(), Laurent Vivier, 2018/01/02