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

target/sparc: Move FLUSH, SAVE, RESTORE to decodetree

Browse Source 
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-10-04 18:52:38 -07:00
parent 86b82fe021
commit d382580031
2 changed files with 29 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
target/sparc/insns.decode
View File

@ -223,6 +223,10 @@ JMPL 10 ..... 111000 ..... . ............. @r_r_ri
RETT 10 00000 111001 ..... . ............. @n_r_ri
RETURN 10 00000 111001 ..... . ............. @n_r_ri
}
NOP 10 00000 111011 ----- 0 00000000----- # FLUSH reg+reg
NOP 10 00000 111011 ----- 1 ------------- # FLUSH reg+imm
SAVE 10 ..... 111100 ..... . ............. @r_r_ri
RESTORE 10 ..... 111101 ..... . ............. @r_r_ri
NCP 10 ----- 110110 ----- --------- ----- # v8 CPop1
NCP 10 ----- 110111 ----- --------- ----- # v8 CPop2

35
target/sparc/translate.c
View File

@ -4077,6 +4077,11 @@ static bool do_saved_restored(DisasContext *dc, bool saved)
TRANS(SAVED, 64, do_saved_restored, true)
TRANS(RESTORED, 64, do_saved_restored, false)
static bool trans_NOP(DisasContext *dc, arg_NOP *a)
{
return advance_pc(dc);
}
static bool trans_NOP_v7(DisasContext *dc, arg_NOP_v7 *a)
{
/*
@ -4457,6 +4462,24 @@ static bool do_return(DisasContext *dc, int rd, TCGv src)
TRANS(RETURN, 64, do_add_special, a, do_return)
static bool do_save(DisasContext *dc, int rd, TCGv src)
{
gen_helper_save(tcg_env);
gen_store_gpr(dc, rd, src);
return advance_pc(dc);
}
TRANS(SAVE, ALL, do_add_special, a, do_save)
static bool do_restore(DisasContext *dc, int rd, TCGv src)
{
gen_helper_restore(tcg_env);
gen_store_gpr(dc, rd, src);
return advance_pc(dc);
}
TRANS(RESTORE, ALL, do_add_special, a, do_restore)
#define CHECK_IU_FEATURE(dc, FEATURE) \
if (!((dc)->def->features & CPU_FEATURE_ ## FEATURE)) \
goto illegal_insn;
@ -5272,18 +5295,10 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
switch (xop) {
case 0x38: /* jmpl */
case 0x39: /* rett, V9 return */
g_assert_not_reached(); /* in decode tree */
case 0x3b: /* flush */
/* nop */
break;
case 0x3b: /* flush */
case 0x3c: /* save */
gen_helper_save(tcg_env);
gen_store_gpr(dc, rd, cpu_tmp0);
break;
case 0x3d: /* restore */
gen_helper_restore(tcg_env);
gen_store_gpr(dc, rd, cpu_tmp0);
break;
g_assert_not_reached(); /* in decode tree */
#if !defined(CONFIG_USER_ONLY) && defined(TARGET_SPARC64)
case 0x3e: /* V9 done/retry */
{