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| author | Richard Henderson <rth@twiddle.net> | 2013-03-27 09:30:58 -0400 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2013-04-05 13:35:40 -0500 |
| commit | d5690ea43322b487071aa22e51f005a542b015d1 (patch) | |
| tree | 14a490450ca6703d8e91a59c532e8fb18e91d19e /tcg/s390 | |
| parent | 96a9f093f8d71bc672e68da100e6a449ada75638 (diff) | |
| download | qemu-d5690ea43322b487071aa22e51f005a542b015d1.zip qemu-d5690ea43322b487071aa22e51f005a542b015d1.tar.gz qemu-d5690ea43322b487071aa22e51f005a542b015d1.tar.bz2 | |
tcg-s390: Implement deposit opcodes
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'tcg/s390')
| -rw-r--r-- | tcg/s390/tcg-target.c | 24 | ||||
| -rw-r--r-- | tcg/s390/tcg-target.h | 8 |
2 files changed, 30 insertions, 2 deletions
diff --git a/tcg/s390/tcg-target.c b/tcg/s390/tcg-target.c index dbe2fa6..673a568 100644 --- a/tcg/s390/tcg-target.c +++ b/tcg/s390/tcg-target.c @@ -125,6 +125,7 @@ typedef enum S390Opcode { RIE_CLGIJ = 0xec7d, RIE_CLRJ = 0xec77, RIE_CRJ = 0xec76, + RIE_RISBG = 0xec55, RRE_AGR = 0xb908, RRE_ALGR = 0xb90a, @@ -1206,6 +1207,23 @@ static void tgen_movcond(TCGContext *s, TCGType type, TCGCond c, TCGReg dest, } } +bool tcg_target_deposit_valid(int ofs, int len) +{ + return (facilities & FACILITY_GEN_INST_EXT) != 0; +} + +static void tgen_deposit(TCGContext *s, TCGReg dest, TCGReg src, + int ofs, int len) +{ + int lsb = (63 - ofs); + int msb = lsb - (len - 1); + + /* Format RIE-f */ + tcg_out16(s, (RIE_RISBG & 0xff00) | (dest << 4) | src); + tcg_out16(s, (msb << 8) | lsb); + tcg_out16(s, (ofs << 8) | (RIE_RISBG & 0xff)); +} + static void tgen_gotoi(TCGContext *s, int cc, tcg_target_long dest) { tcg_target_long off = (dest - (tcg_target_long)s->code_ptr) >> 1; @@ -2103,6 +2121,10 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, tcg_out_qemu_ld(s, args, LD_INT32); break; + OP_32_64(deposit): + tgen_deposit(s, args[0], args[2], args[3], args[4]); + break; + default: fprintf(stderr,"unimplemented opc 0x%x\n",opc); tcg_abort(); @@ -2161,6 +2183,7 @@ static const TCGTargetOpDef s390_op_defs[] = { { INDEX_op_brcond_i32, { "r", "rWC" } }, { INDEX_op_setcond_i32, { "r", "r", "rWC" } }, { INDEX_op_movcond_i32, { "r", "r", "rWC", "r", "0" } }, + { INDEX_op_deposit_i32, { "r", "0", "r" } }, { INDEX_op_qemu_ld8u, { "r", "L" } }, { INDEX_op_qemu_ld8s, { "r", "L" } }, @@ -2228,6 +2251,7 @@ static const TCGTargetOpDef s390_op_defs[] = { { INDEX_op_brcond_i64, { "r", "rC" } }, { INDEX_op_setcond_i64, { "r", "r", "rC" } }, { INDEX_op_movcond_i64, { "r", "r", "rC", "r", "0" } }, + { INDEX_op_deposit_i64, { "r", "0", "r" } }, { INDEX_op_qemu_ld32u, { "r", "L" } }, { INDEX_op_qemu_ld32s, { "r", "L" } }, diff --git a/tcg/s390/tcg-target.h b/tcg/s390/tcg-target.h index 5e1ac8b..42ca36c 100644 --- a/tcg/s390/tcg-target.h +++ b/tcg/s390/tcg-target.h @@ -63,7 +63,7 @@ typedef enum TCGReg { #define TCG_TARGET_HAS_eqv_i32 0 #define TCG_TARGET_HAS_nand_i32 0 #define TCG_TARGET_HAS_nor_i32 0 -#define TCG_TARGET_HAS_deposit_i32 0 +#define TCG_TARGET_HAS_deposit_i32 1 #define TCG_TARGET_HAS_movcond_i32 1 #define TCG_TARGET_HAS_add2_i32 1 #define TCG_TARGET_HAS_sub2_i32 1 @@ -88,13 +88,17 @@ typedef enum TCGReg { #define TCG_TARGET_HAS_eqv_i64 0 #define TCG_TARGET_HAS_nand_i64 0 #define TCG_TARGET_HAS_nor_i64 0 -#define TCG_TARGET_HAS_deposit_i64 0 +#define TCG_TARGET_HAS_deposit_i64 1 #define TCG_TARGET_HAS_movcond_i64 1 #define TCG_TARGET_HAS_add2_i64 1 #define TCG_TARGET_HAS_sub2_i64 1 #define TCG_TARGET_HAS_mulu2_i64 1 #define TCG_TARGET_HAS_muls2_i64 0 +extern bool tcg_target_deposit_valid(int ofs, int len); +#define TCG_TARGET_deposit_i32_valid tcg_target_deposit_valid +#define TCG_TARGET_deposit_i64_valid tcg_target_deposit_valid + /* used for function call generation */ #define TCG_REG_CALL_STACK TCG_REG_R15 #define TCG_TARGET_STACK_ALIGN 8 |