Patchwork [018/111] m68k: add word data size for suba/adda

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Submitter Bryce Lanham
Date Aug. 17, 2011, 8:46 p.m.
Message ID <1313614076-28878-19-git-send-email-blanham@gmail.com>
Download mbox | patch
Permalink /patch/110431/
State New
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Comments

Bryce Lanham - Aug. 17, 2011, 8:46 p.m.
From: Laurent Vivier <laurent@vivier.eu>

Allows suba and adda to manage word sized effective address, and attach
them to M68000 feature.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 target-m68k/translate.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

Patch

diff --git a/target-m68k/translate.c b/target-m68k/translate.c
index 74faabf..0321349 100644
--- a/target-m68k/translate.c
+++ b/target-m68k/translate.c
@@ -1881,7 +1881,7 @@  DISAS_INSN(suba)
     TCGv src;
     TCGv reg;
 
-    SRC_EA(src, OS_LONG, 0, NULL);
+    SRC_EA(src, (insn & 0x100) ? OS_LONG : OS_WORD, -1, NULL);
     reg = AREG(insn, 9);
     tcg_gen_sub_i32(reg, reg, src);
 }
@@ -1991,7 +1991,7 @@  DISAS_INSN(adda)
     TCGv src;
     TCGv reg;
 
-    SRC_EA(src, OS_LONG, 0, NULL);
+    SRC_EA(src, (insn & 0x100) ? OS_LONG : OS_WORD, -1, NULL);
     reg = AREG(insn, 9);
     tcg_gen_add_i32(reg, reg, src);
 }
@@ -3109,6 +3109,7 @@  void register_m68k_insns (CPUM68KState *env)
     INSN(subx,      9180, f1f8, CF_ISA_A);
     INSN(subx,      9100, f138, M68000);
     INSN(suba,      91c0, f1c0, CF_ISA_A);
+    INSN(suba,      90c0, f0c0, M68000);
 
     INSN(undef_mac, a000, f000, CF_ISA_A);
     INSN(undef_mac, a000, f000, M68000);
@@ -3144,6 +3145,7 @@  void register_m68k_insns (CPUM68KState *env)
     INSN(addx,      d180, f1f8, CF_ISA_A);
     INSN(addx,      d100, f138, M68000);
     INSN(adda,      d1c0, f1c0, CF_ISA_A);
+    INSN(adda,      d0c0, f0c0, M68000);
     INSN(shift_im,  e080, f0f0, CF_ISA_A);
     INSN(shift_reg, e0a0, f0f0, CF_ISA_A);
     INSN(shift_im,    e080, f0f0, M68000);