haraldwolff/qemu-patch-raspberry4
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

target-tilegx: Handle post-increment load and store instructions

Browse source 
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2015-08-21 09:49:44 -07:00
parent 0426335d4f
commit 01cd675cfe
1 changed files with 86 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

94
target-tilegx/translate.c
View file

@ -228,6 +228,20 @@ static TileExcp gen_st_opcode(DisasContext *dc, unsigned dest, unsigned srca,
return TILEGX_EXCP_NONE;
}
static TileExcp gen_st_add_opcode(DisasContext *dc, unsigned srca, unsigned srcb,
int imm, TCGMemOp memop, const char *name)
{
TCGv tsrca = load_gr(dc, srca);
TCGv tsrcb = load_gr(dc, srcb);
tcg_gen_qemu_st_tl(tsrcb, tsrca, dc->mmuidx, memop);
tcg_gen_addi_tl(dest_gr(dc, srca), tsrca, imm);
qemu_log_mask(CPU_LOG_TB_IN_ASM, "%s %s, %s, %d", name,
reg_names[srca], reg_names[srcb], imm);
return TILEGX_EXCP_NONE;
}
static TileExcp gen_rr_opcode(DisasContext *dc, unsigned opext,
unsigned dest, unsigned srca)
{
@ -824,6 +838,7 @@ static TileExcp gen_rri_opcode(DisasContext *dc, unsigned opext,
TCGv tdest = dest_gr(dc, dest);
TCGv tsrca = load_gr(dc, srca);
const char *mnemonic;
TCGMemOp memop;
switch (opext) {
case OE(ADDI_OPCODE_Y0, 0, Y0):
@ -854,21 +869,72 @@ static TileExcp gen_rri_opcode(DisasContext *dc, unsigned opext,
case OE_IM(CMPLTSI, X1):
case OE_IM(CMPLTUI, X0):
case OE_IM(CMPLTUI, X1):
return TILEGX_EXCP_OPCODE_UNIMPLEMENTED;
case OE_IM(LD1S_ADD, X1):
memop = MO_SB;
mnemonic = "ld1s_add";
goto do_load_add;
case OE_IM(LD1U_ADD, X1):
memop = MO_UB;
mnemonic = "ld1u_add";
goto do_load_add;
case OE_IM(LD2S_ADD, X1):
memop = MO_TESW;
mnemonic = "ld2s_add";
goto do_load_add;
case OE_IM(LD2U_ADD, X1):
memop = MO_TEUW;
mnemonic = "ld2u_add";
goto do_load_add;
case OE_IM(LD4S_ADD, X1):
memop = MO_TESL;
mnemonic = "ld4s_add";
goto do_load_add;
case OE_IM(LD4U_ADD, X1):
memop = MO_TEUL;
mnemonic = "ld4u_add";
goto do_load_add;
case OE_IM(LDNT1S_ADD, X1):
memop = MO_SB;
mnemonic = "ldnt1s_add";
goto do_load_add;
case OE_IM(LDNT1U_ADD, X1):
memop = MO_UB;
mnemonic = "ldnt1u_add";
goto do_load_add;
case OE_IM(LDNT2S_ADD, X1):
memop = MO_TESW;
mnemonic = "ldnt2s_add";
goto do_load_add;
case OE_IM(LDNT2U_ADD, X1):
memop = MO_TEUW;
mnemonic = "ldnt2u_add";
goto do_load_add;
case OE_IM(LDNT4S_ADD, X1):
memop = MO_TESL;
mnemonic = "ldnt4s_add";
goto do_load_add;
case OE_IM(LDNT4U_ADD, X1):
memop = MO_TEUL;
mnemonic = "ldnt4u_add";
goto do_load_add;
case OE_IM(LDNT_ADD, X1):
memop = MO_TEQ;
mnemonic = "ldnt_add";
goto do_load_add;
case OE_IM(LD_ADD, X1):
memop = MO_TEQ;
mnemonic = "ldnt_add";
do_load_add:
tcg_gen_qemu_ld_tl(tdest, tsrca, dc->mmuidx, memop);
tcg_gen_addi_tl(dest_gr(dc, srca), tsrca, imm);
break;
case OE_IM(LDNA_ADD, X1):
tcg_gen_andi_tl(tdest, tsrca, ~7);
tcg_gen_qemu_ld_tl(tdest, tdest, dc->mmuidx, MO_TEQ);
tcg_gen_addi_tl(dest_gr(dc, srca), tsrca, imm);
mnemonic = "ldna_add";
break;
case OE_IM(MFSPR, X1):
case OE_IM(MTSPR, X1):
return TILEGX_EXCP_OPCODE_UNIMPLEMENTED;
@ -877,14 +943,6 @@ static TileExcp gen_rri_opcode(DisasContext *dc, unsigned opext,
tcg_gen_ori_tl(tdest, tsrca, imm);
mnemonic = "ori";
break;
case OE_IM(ST1_ADD, X1):
case OE_IM(ST2_ADD, X1):
case OE_IM(ST4_ADD, X1):
case OE_IM(STNT1_ADD, X1):
case OE_IM(STNT2_ADD, X1):
case OE_IM(STNT4_ADD, X1):
case OE_IM(STNT_ADD, X1):
case OE_IM(ST_ADD, X1):
case OE_IM(V1ADDI, X0):
case OE_IM(V1ADDI, X1):
case OE_IM(V1CMPEQI, X0):
@ -1291,6 +1349,26 @@ static TileExcp decode_x1(DisasContext *dc, tilegx_bundle_bits bundle)
case IMM8_OPCODE_X1:
ext = get_Imm8OpcodeExtension_X1(bundle);
imm = (int8_t)get_Dest_Imm8_X1(bundle);
srcb = get_SrcB_X1(bundle);
switch (ext) {
case ST1_ADD_IMM8_OPCODE_X1:
return gen_st_add_opcode(dc, srca, srcb, imm, MO_UB, "st1_add");
case ST2_ADD_IMM8_OPCODE_X1:
return gen_st_add_opcode(dc, srca, srcb, imm, MO_TEUW, "st2_add");
case ST4_ADD_IMM8_OPCODE_X1:
return gen_st_add_opcode(dc, srca, srcb, imm, MO_TEUL, "st4_add");
case STNT1_ADD_IMM8_OPCODE_X1:
return gen_st_add_opcode(dc, srca, srcb, imm, MO_UB, "stnt1_add");
case STNT2_ADD_IMM8_OPCODE_X1:
return gen_st_add_opcode(dc, srca, srcb, imm, MO_TEUW, "stnt2_add");
case STNT4_ADD_IMM8_OPCODE_X1:
return gen_st_add_opcode(dc, srca, srcb, imm, MO_TEUL, "stnt4_add");
case STNT_ADD_IMM8_OPCODE_X1:
return gen_st_add_opcode(dc, srca, srcb, imm, MO_TEQ, "stnt_add");
case ST_ADD_IMM8_OPCODE_X1:
return gen_st_add_opcode(dc, srca, srcb, imm, MO_TEQ, "st_add");
}
imm = (int8_t)get_Imm8_X1(bundle);
return gen_rri_opcode(dc, OE(opc, ext, X1), dest, srca, imm);