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target/openrisc: Convert dec_calc 

Acked-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2018-02-20 10:04:14 -08:00
parent 8816f70b93
commit 6ad216abfd
2 changed files with 229 additions and 169 deletions
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76
target/openrisc/insns.decode
View File

@ -17,6 +17,10 @@
# License along with this library; if not, see <http://www.gnu.org/licenses/>.
#
&dab d a b
&da d a
&ab a b
####
# System Instructions
####
@ -27,7 +31,7 @@ l_msync 001000 1000000000 00000000 00000000
l_psync 001000 1010000000 00000000 00000000
l_csync 001000 1100000000 00000000 00000000
l_rfe 001001 ----- ----- -------- --------
l_rfe 001001 ----- ----- -------- --------
####
# Branch Instructions
@ -60,32 +64,64 @@ l_lbs 100100 ..... ..... ........ ........ @load
l_lhz 100101 ..... ..... ........ ........ @load
l_lhs 100110 ..... ..... ........ ........ @load
l_swa 110011 ..... ..... ..... ........... @store
l_sw 110101 ..... ..... ..... ........... @store
l_sb 110110 ..... ..... ..... ........... @store
l_sh 110111 ..... ..... ..... ........... @store
l_swa 110011 ..... ..... ..... ........... @store
l_sw 110101 ..... ..... ..... ........... @store
l_sb 110110 ..... ..... ..... ........... @store
l_sh 110111 ..... ..... ..... ........... @store
####
# Immediate Operand Instructions
####
%mtspr_k 21:5 0:11
%mtspr_k 21:5 0:11
&rri d a i
&rrk d a k
@rri ...... d:5 a:5 i:s16 &rri
@rrk ...... d:5 a:5 k:16 &rrk
&rri d a i
&rrk d a k
@rri ...... d:5 a:5 i:s16 &rri
@rrk ...... d:5 a:5 k:16 &rrk
l_nop 000101 01--- ----- k:16
l_nop 000101 01--- ----- k:16
l_addi 100111 ..... ..... ........ ........ @rri
l_addic 101000 ..... ..... ........ ........ @rri
l_andi 101001 ..... ..... ........ ........ @rrk
l_ori 101010 ..... ..... ........ ........ @rrk
l_xori 101011 ..... ..... ........ ........ @rri
l_muli 101100 ..... ..... ........ ........ @rri
l_addi 100111 ..... ..... ........ ........ @rri
l_addic 101000 ..... ..... ........ ........ @rri
l_andi 101001 ..... ..... ........ ........ @rrk
l_ori 101010 ..... ..... ........ ........ @rrk
l_xori 101011 ..... ..... ........ ........ @rri
l_muli 101100 ..... ..... ........ ........ @rri
l_mfspr 101101 ..... ..... ........ ........ @rrk
l_mtspr 110000 ..... a:5 b:5 ........... k=%mtspr_k
l_mfspr 101101 ..... ..... ........ ........ @rrk
l_mtspr 110000 ..... a:5 b:5 ........... k=%mtspr_k
l_maci 010011 ----- a:5 i:s16
l_maci 010011 ----- a:5 i:s16
####
# Arithmetic Instructions
####
l_exths 111000 d:5 a:5 ----- - 0000 -- 1100
l_extbs 111000 d:5 a:5 ----- - 0001 -- 1100
l_exthz 111000 d:5 a:5 ----- - 0010 -- 1100
l_extbz 111000 d:5 a:5 ----- - 0011 -- 1100
l_add 111000 d:5 a:5 b:5 - 00 ---- 0000
l_addc 111000 d:5 a:5 b:5 - 00 ---- 0001
l_sub 111000 d:5 a:5 b:5 - 00 ---- 0010
l_and 111000 d:5 a:5 b:5 - 00 ---- 0011
l_or 111000 d:5 a:5 b:5 - 00 ---- 0100
l_xor 111000 d:5 a:5 b:5 - 00 ---- 0101
l_cmov 111000 d:5 a:5 b:5 - 00 ---- 1110
l_ff1 111000 d:5 a:5 ----- - 00 ---- 1111
l_fl1 111000 d:5 a:5 ----- - 01 ---- 1111
l_sll 111000 d:5 a:5 b:5 - 0000 -- 1000
l_srl 111000 d:5 a:5 b:5 - 0001 -- 1000
l_sra 111000 d:5 a:5 b:5 - 0010 -- 1000
l_ror 111000 d:5 a:5 b:5 - 0011 -- 1000
l_mul 111000 d:5 a:5 b:5 - 11 ---- 0110
l_mulu 111000 d:5 a:5 b:5 - 11 ---- 1011
l_div 111000 d:5 a:5 b:5 - 11 ---- 1001
l_divu 111000 d:5 a:5 b:5 - 11 ---- 1010
l_muld 111000 ----- a:5 b:5 - 11 ---- 0111
l_muldu 111000 ----- a:5 b:5 - 11 ---- 1100

322
target/openrisc/translate.c
View File

@ -455,171 +455,199 @@ static void gen_msbu(DisasContext *dc, TCGv srca, TCGv srcb)
gen_ove_cy(dc);
}
static void dec_calc(DisasContext *dc, uint32_t insn)
static bool trans_l_add(DisasContext *dc, arg_dab *a, uint32_t insn)
{
uint32_t op0, op1, op2;
uint32_t ra, rb, rd;
op0 = extract32(insn, 0, 4);
op1 = extract32(insn, 8, 2);
op2 = extract32(insn, 6, 2);
ra = extract32(insn, 16, 5);
rb = extract32(insn, 11, 5);
rd = extract32(insn, 21, 5);
LOG_DIS("l.add r%d, r%d, r%d\n", a->d, a->a, a->b);
check_r0_write(a->d);
gen_add(dc, cpu_R[a->d], cpu_R[a->a], cpu_R[a->b]);
return true;
}
switch (op1) {
case 0:
switch (op0) {
case 0x0: /* l.add */
LOG_DIS("l.add r%d, r%d, r%d\n", rd, ra, rb);
gen_add(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]);
return;
static bool trans_l_addc(DisasContext *dc, arg_dab *a, uint32_t insn)
{
LOG_DIS("l.addc r%d, r%d, r%d\n", a->d, a->a, a->b);
check_r0_write(a->d);
gen_addc(dc, cpu_R[a->d], cpu_R[a->a], cpu_R[a->b]);
return true;
}
case 0x1: /* l.addc */
LOG_DIS("l.addc r%d, r%d, r%d\n", rd, ra, rb);
gen_addc(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]);
return;
static bool trans_l_sub(DisasContext *dc, arg_dab *a, uint32_t insn)
{
LOG_DIS("l.sub r%d, r%d, r%d\n", a->d, a->a, a->b);
check_r0_write(a->d);
gen_sub(dc, cpu_R[a->d], cpu_R[a->a], cpu_R[a->b]);
return true;
}
case 0x2: /* l.sub */
LOG_DIS("l.sub r%d, r%d, r%d\n", rd, ra, rb);
gen_sub(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]);
return;
static bool trans_l_and(DisasContext *dc, arg_dab *a, uint32_t insn)
{
LOG_DIS("l.and r%d, r%d, r%d\n", a->d, a->a, a->b);
check_r0_write(a->d);
tcg_gen_and_tl(cpu_R[a->d], cpu_R[a->a], cpu_R[a->b]);
return true;
}
case 0x3: /* l.and */
LOG_DIS("l.and r%d, r%d, r%d\n", rd, ra, rb);
tcg_gen_and_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
return;
static bool trans_l_or(DisasContext *dc, arg_dab *a, uint32_t insn)
{
LOG_DIS("l.or r%d, r%d, r%d\n", a->d, a->a, a->b);
check_r0_write(a->d);
tcg_gen_or_tl(cpu_R[a->d], cpu_R[a->a], cpu_R[a->b]);
return true;
}
case 0x4: /* l.or */
LOG_DIS("l.or r%d, r%d, r%d\n", rd, ra, rb);
tcg_gen_or_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
return;
static bool trans_l_xor(DisasContext *dc, arg_dab *a, uint32_t insn)
{
LOG_DIS("l.xor r%d, r%d, r%d\n", a->d, a->a, a->b);
check_r0_write(a->d);
tcg_gen_xor_tl(cpu_R[a->d], cpu_R[a->a], cpu_R[a->b]);
return true;
}
case 0x5: /* l.xor */
LOG_DIS("l.xor r%d, r%d, r%d\n", rd, ra, rb);
tcg_gen_xor_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
return;
static bool trans_l_sll(DisasContext *dc, arg_dab *a, uint32_t insn)
{
LOG_DIS("l.sll r%d, r%d, r%d\n", a->d, a->a, a->b);
check_r0_write(a->d);
tcg_gen_shl_tl(cpu_R[a->d], cpu_R[a->a], cpu_R[a->b]);
return true;
}
case 0x8:
switch (op2) {
case 0: /* l.sll */
LOG_DIS("l.sll r%d, r%d, r%d\n", rd, ra, rb);
tcg_gen_shl_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
return;
case 1: /* l.srl */
LOG_DIS("l.srl r%d, r%d, r%d\n", rd, ra, rb);
tcg_gen_shr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
return;
case 2: /* l.sra */
LOG_DIS("l.sra r%d, r%d, r%d\n", rd, ra, rb);
tcg_gen_sar_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
return;
case 3: /* l.ror */
LOG_DIS("l.ror r%d, r%d, r%d\n", rd, ra, rb);
tcg_gen_rotr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
return;
}
break;
static bool trans_l_srl(DisasContext *dc, arg_dab *a, uint32_t insn)
{
LOG_DIS("l.srl r%d, r%d, r%d\n", a->d, a->a, a->b);
check_r0_write(a->d);
tcg_gen_shr_tl(cpu_R[a->d], cpu_R[a->a], cpu_R[a->b]);
return true;
}
case 0xc:
switch (op2) {
case 0: /* l.exths */
LOG_DIS("l.exths r%d, r%d\n", rd, ra);
tcg_gen_ext16s_tl(cpu_R[rd], cpu_R[ra]);
return;
case 1: /* l.extbs */
LOG_DIS("l.extbs r%d, r%d\n", rd, ra);
tcg_gen_ext8s_tl(cpu_R[rd], cpu_R[ra]);
return;
case 2: /* l.exthz */
LOG_DIS("l.exthz r%d, r%d\n", rd, ra);
tcg_gen_ext16u_tl(cpu_R[rd], cpu_R[ra]);
return;
case 3: /* l.extbz */
LOG_DIS("l.extbz r%d, r%d\n", rd, ra);
tcg_gen_ext8u_tl(cpu_R[rd], cpu_R[ra]);
return;
}
break;
static bool trans_l_sra(DisasContext *dc, arg_dab *a, uint32_t insn)
{
LOG_DIS("l.sra r%d, r%d, r%d\n", a->d, a->a, a->b);
check_r0_write(a->d);
tcg_gen_sar_tl(cpu_R[a->d], cpu_R[a->a], cpu_R[a->b]);
return true;
}
case 0xd:
switch (op2) {
case 0: /* l.extws */
LOG_DIS("l.extws r%d, r%d\n", rd, ra);
tcg_gen_ext32s_tl(cpu_R[rd], cpu_R[ra]);
return;
case 1: /* l.extwz */
LOG_DIS("l.extwz r%d, r%d\n", rd, ra);
tcg_gen_ext32u_tl(cpu_R[rd], cpu_R[ra]);
return;
}
break;
static bool trans_l_ror(DisasContext *dc, arg_dab *a, uint32_t insn)
{
LOG_DIS("l.ror r%d, r%d, r%d\n", a->d, a->a, a->b);
check_r0_write(a->d);
tcg_gen_rotr_tl(cpu_R[a->d], cpu_R[a->a], cpu_R[a->b]);
return true;
}
case 0xe: /* l.cmov */
LOG_DIS("l.cmov r%d, r%d, r%d\n", rd, ra, rb);
{
TCGv zero = tcg_const_tl(0);
tcg_gen_movcond_tl(TCG_COND_NE, cpu_R[rd], cpu_sr_f, zero,
cpu_R[ra], cpu_R[rb]);
tcg_temp_free(zero);
}
return;
static bool trans_l_exths(DisasContext *dc, arg_da *a, uint32_t insn)
{
LOG_DIS("l.exths r%d, r%d\n", a->d, a->a);
check_r0_write(a->d);
tcg_gen_ext16s_tl(cpu_R[a->d], cpu_R[a->a]);
return true;
}
case 0xf: /* l.ff1 */
LOG_DIS("l.ff1 r%d, r%d, r%d\n", rd, ra, rb);
tcg_gen_ctzi_tl(cpu_R[rd], cpu_R[ra], -1);
tcg_gen_addi_tl(cpu_R[rd], cpu_R[rd], 1);
return;
}
break;
static bool trans_l_extbs(DisasContext *dc, arg_da *a, uint32_t insn)
{
LOG_DIS("l.extbs r%d, r%d\n", a->d, a->a);
check_r0_write(a->d);
tcg_gen_ext8s_tl(cpu_R[a->d], cpu_R[a->a]);
return true;
}
case 1:
switch (op0) {
case 0xf: /* l.fl1 */
LOG_DIS("l.fl1 r%d, r%d, r%d\n", rd, ra, rb);
tcg_gen_clzi_tl(cpu_R[rd], cpu_R[ra], TARGET_LONG_BITS);
tcg_gen_subfi_tl(cpu_R[rd], TARGET_LONG_BITS, cpu_R[rd]);
return;
}
break;
static bool trans_l_exthz(DisasContext *dc, arg_da *a, uint32_t insn)
{
LOG_DIS("l.exthz r%d, r%d\n", a->d, a->a);
check_r0_write(a->d);
tcg_gen_ext16u_tl(cpu_R[a->d], cpu_R[a->a]);
return true;
}
case 2:
break;
static bool trans_l_extbz(DisasContext *dc, arg_da *a, uint32_t insn)
{
LOG_DIS("l.extbz r%d, r%d\n", a->d, a->a);
check_r0_write(a->d);
tcg_gen_ext8u_tl(cpu_R[a->d], cpu_R[a->a]);
return true;
}
case 3:
switch (op0) {
case 0x6: /* l.mul */
LOG_DIS("l.mul r%d, r%d, r%d\n", rd, ra, rb);
gen_mul(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]);
return;
static bool trans_l_cmov(DisasContext *dc, arg_dab *a, uint32_t insn)
{
TCGv zero;
LOG_DIS("l.cmov r%d, r%d, r%d\n", a->d, a->a, a->b);
case 0x7: /* l.muld */
LOG_DIS("l.muld r%d, r%d\n", ra, rb);
gen_muld(dc, cpu_R[ra], cpu_R[rb]);
break;
check_r0_write(a->d);
zero = tcg_const_tl(0);
tcg_gen_movcond_tl(TCG_COND_NE, cpu_R[a->d], cpu_sr_f, zero,
cpu_R[a->a], cpu_R[a->b]);
tcg_temp_free(zero);
return true;
}
case 0x9: /* l.div */
LOG_DIS("l.div r%d, r%d, r%d\n", rd, ra, rb);
gen_div(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]);
return;
static bool trans_l_ff1(DisasContext *dc, arg_da *a, uint32_t insn)
{
LOG_DIS("l.ff1 r%d, r%d\n", a->d, a->a);
case 0xa: /* l.divu */
LOG_DIS("l.divu r%d, r%d, r%d\n", rd, ra, rb);
gen_divu(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]);
return;
check_r0_write(a->d);
tcg_gen_ctzi_tl(cpu_R[a->d], cpu_R[a->a], -1);
tcg_gen_addi_tl(cpu_R[a->d], cpu_R[a->d], 1);
return true;
}
case 0xb: /* l.mulu */
LOG_DIS("l.mulu r%d, r%d, r%d\n", rd, ra, rb);
gen_mulu(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]);
return;
static bool trans_l_fl1(DisasContext *dc, arg_da *a, uint32_t insn)
{
LOG_DIS("l.fl1 r%d, r%d\n", a->d, a->a);
case 0xc: /* l.muldu */
LOG_DIS("l.muldu r%d, r%d\n", ra, rb);
gen_muldu(dc, cpu_R[ra], cpu_R[rb]);
return;
}
break;
}
gen_illegal_exception(dc);
check_r0_write(a->d);
tcg_gen_clzi_tl(cpu_R[a->d], cpu_R[a->a], TARGET_LONG_BITS);
tcg_gen_subfi_tl(cpu_R[a->d], TARGET_LONG_BITS, cpu_R[a->d]);
return true;
}
static bool trans_l_mul(DisasContext *dc, arg_dab *a, uint32_t insn)
{
LOG_DIS("l.mul r%d, r%d, r%d\n", a->d, a->a, a->b);
check_r0_write(a->d);
gen_mul(dc, cpu_R[a->d], cpu_R[a->a], cpu_R[a->b]);
return true;
}
static bool trans_l_mulu(DisasContext *dc, arg_dab *a, uint32_t insn)
{
LOG_DIS("l.mulu r%d, r%d, r%d\n", a->d, a->a, a->b);
check_r0_write(a->d);
gen_mulu(dc, cpu_R[a->d], cpu_R[a->a], cpu_R[a->b]);
return true;
}
static bool trans_l_div(DisasContext *dc, arg_dab *a, uint32_t insn)
{
LOG_DIS("l.div r%d, r%d, r%d\n", a->d, a->a, a->b);
check_r0_write(a->d);
gen_div(dc, cpu_R[a->d], cpu_R[a->a], cpu_R[a->b]);
return true;
}
static bool trans_l_divu(DisasContext *dc, arg_dab *a, uint32_t insn)
{
LOG_DIS("l.divu r%d, r%d, r%d\n", a->d, a->a, a->b);
check_r0_write(a->d);
gen_divu(dc, cpu_R[a->d], cpu_R[a->a], cpu_R[a->b]);
return true;
}
static bool trans_l_muld(DisasContext *dc, arg_ab *a, uint32_t insn)
{
LOG_DIS("l.muld r%d, r%d\n", a->a, a->b);
gen_muld(dc, cpu_R[a->a], cpu_R[a->b]);
return true;
}
static bool trans_l_muldu(DisasContext *dc, arg_ab *a, uint32_t insn)
{
LOG_DIS("l.muldu r%d, r%d\n", a->a, a->b);
gen_muldu(dc, cpu_R[a->a], cpu_R[a->b]);
return true;
}
static bool trans_l_j(DisasContext *dc, arg_l_j *a, uint32_t insn)
@ -1485,10 +1513,6 @@ static void disas_openrisc_insn(DisasContext *dc, OpenRISCCPU *cpu)
dec_float(dc, insn);
break;
case 0x38:
dec_calc(dc, insn);
break;
case 0x39:
dec_comp(dc, insn);
break;