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target-tricore: Add instructions of RRR1 opcode format, which have 0xc3 as first opcode

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Add helpers helper_addsur_h/_ssov which adds one halfword and subtracts one
halfword, rounds / and saturates each half word independently.

Add microcode helper functions:
    * gen_maddsu_h/sus_h: multiply two halfwords left justified and add to the
                          first one word and subtract from the second one word
                          / and saturate each resulting word independetly.
    * gen_maddsum_h/sums_h: multiply two halfwords in q-format left justified
                            and add to the first one word and subtract from
                            the second one word / and saturate each resulting
                            word independetly.
    * gen_maddsur32_h/32s_h: multiply two halfwords in q-format left justified
                             and add to the first one word and subtract from
                             the second one word, round both results / and
                             saturate each resulting word independetly.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Bastian Koppelmann 2015-02-06 14:48:33 +00:00
parent b00aa8ecbc
commit bebe80fc78
3 changed files with 418 additions and 0 deletions
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2
target-tricore/helper.h
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@ -22,6 +22,7 @@ DEF_HELPER_3(add_suov, i32, env, i32, i32)
DEF_HELPER_3(add_h_ssov, i32, env, i32, i32)
DEF_HELPER_3(add_h_suov, i32, env, i32, i32)
DEF_HELPER_4(addr_h_ssov, i32, env, i64, i32, i32)
DEF_HELPER_4(addsur_h_ssov, i32, env, i64, i32, i32)
DEF_HELPER_3(sub_ssov, i32, env, i32, i32)
DEF_HELPER_3(sub_suov, i32, env, i32, i32)
DEF_HELPER_3(sub_h_ssov, i32, env, i32, i32)
@ -50,6 +51,7 @@ DEF_HELPER_2(abs_h, i32, env, i32)
DEF_HELPER_3(absdif_b, i32, env, i32, i32)
DEF_HELPER_3(absdif_h, i32, env, i32, i32)
DEF_HELPER_4(addr_h, i32, env, i64, i32, i32)
DEF_HELPER_4(addsur_h, i32, env, i64, i32, i32)
DEF_HELPER_5(maddr_q, i32, env, i32, i32, i32, i32)
DEF_HELPER_3(add_b, i32, env, i32, i32)
DEF_HELPER_3(add_h, i32, env, i32, i32)