diff options
Diffstat (limited to 'gcc/config/rl78/rl78.md')
| -rw-r--r-- | gcc/config/rl78/rl78.md | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/gcc/config/rl78/rl78.md b/gcc/config/rl78/rl78.md index b3cfe6d1bbc..efc26210498 100644 --- a/gcc/config/rl78/rl78.md +++ b/gcc/config/rl78/rl78.md @@ -235,6 +235,24 @@ [(set_attr "valloc" "macax")] ) +(define_expand "mulqi3" + [(set (match_operand:QI 0 "register_operand" "") + (mult:QI (match_operand:QI 1 "general_operand" "") + (match_operand:QI 2 "nonmemory_operand" ""))) + ] + "" ; mulu supported by all targets + "" +) + +(define_expand "mulhi3" + [(set (match_operand:HI 0 "register_operand" "") + (mult:HI (match_operand:HI 1 "general_operand" "") + (match_operand:HI 2 "nonmemory_operand" ""))) + ] + "! RL78_MUL_NONE" + "" +) + (define_expand "mulsi3" [(set (match_operand:SI 0 "register_operand" "=&v") (mult:SI (match_operand:SI 1 "nonmemory_operand" "vi") @@ -244,6 +262,58 @@ "" ) +(define_insn "*mulqi3_rl78" + [(set (match_operand:QI 0 "register_operand" "=&v") + (mult:QI (match_operand:QI 1 "general_operand" "+viU") + (match_operand:QI 2 "general_operand" "vi"))) + ] + "" ; mulu supported by all targets + "; mulqi macro %0 = %1 * %2 + mov a, %h1 + mov x, a + mov a, %h2 + mulu x ; ax = a * x + mov a, x + mov %h0, a + ; end of mulqi macro" +;; [(set_attr "valloc" "macax")] +) + +(define_insn "*mulhi3_rl78" + [(set (match_operand:HI 0 "register_operand" "=&v") + (mult:HI (match_operand:HI 1 "general_operand" "+viU") + (match_operand:HI 2 "general_operand" "vi"))) + ] + "RL78_MUL_RL78" + "; mulhi macro %0 = %1 * %2 + movw ax, %h1 + movw bc, %h2 + mulhu ; bcax = bc * ax + movw %h0, ax + ; end of mulhi macro" +;; [(set_attr "valloc" "macax")] +) + +(define_insn "*mulhi3_g13" + [(set (match_operand:HI 0 "register_operand" "=&v") + (mult:HI (match_operand:HI 1 "general_operand" "+viU") + (match_operand:HI 2 "general_operand" "vi"))) + ] + "RL78_MUL_G13" + "; mulhi macro %0 = %1 * %2 + mov a, #0x00 + mov !0xf00e8, a ; MDUC + movw ax, %h1 + movw 0xffff0, ax ; MDAL + movw ax, %h2 + movw 0xffff2, ax ; MDAH + nop ; mdb = mdal * mdah + movw ax, 0xffff6 ; MDBL + movw %h0, ax + ; end of mulhi macro" +;; [(set_attr "valloc" "umul")] +) + ;; 0xFFFF0 is MACR(L). 0xFFFF2 is MACR(H) but we don't care about it ;; because we're only using the lower 16 bits (which is the upper 16 ;; bits of the result). |