diff options
| author | Astrid Smith | 2010-06-26 13:51:49 -0700 |
|---|---|---|
| committer | Astrid Smith | 2010-06-26 13:51:49 -0700 |
| commit | 9ea2107cff99244dffe6f99167335af570bfa040 (patch) | |
| tree | c86b34762169b50d7cb26cf10e1ac2757bda0d51 /opcodes.asm | |
| parent | 4eba8e12093c69e280d0c0809358d6f54a4ab9cf (diff) | |
Parted out remaining un-written ALU instructions.
Diffstat (limited to 'opcodes.asm')
| -rw-r--r-- | opcodes.asm | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/opcodes.asm b/opcodes.asm index 2301c71..f1eaa8e 100644 --- a/opcodes.asm +++ b/opcodes.asm @@ -1219,8 +1219,6 @@ emu_op_7f: ;; Do an ADD \2,\1 - ;; XXX check this - ;; XXX make it shorter ... D: F_ADD_B MACRO ; 14 bytes? move.b \2,d1 move.b \1,d0 @@ -1358,8 +1356,7 @@ emu_op_8f: ;; Do a SUB \2,\1 - ;; XXX CHECK -F_SUB_B MACRO ; 22 bytes? +F_SUB_B MACRO move.b \2,d1 move.b \1,d0 bsr alu_sub @@ -1493,7 +1490,10 @@ emu_op_9f: F_AND_B MACRO - ;; XXX + move.b \2,d1 + move.b \1,d0 + bsr alu_and + move.b d1,\2 ENDM START @@ -1557,7 +1557,10 @@ emu_op_a7: F_XOR_B MACRO - ;; XXX + move.b \2,d1 + move.b \1,d0 + bsr alu_xor + move.b d1,\2 ENDM START @@ -1622,7 +1625,10 @@ emu_op_af: F_OR_B MACRO - ;; XXX + move.b \2,d1 + move.b \1,d0 + bsr alu_or + move.b d1,\2 ENDM START @@ -1687,7 +1693,11 @@ emu_op_b7: ;; COMPARE instruction F_CP_B MACRO - ;; XXX + ;; XXX deal with \2 or \1 being d1 or d0 + move.b \2,d1 + move.b \1,d0 + bsr alu_cp + ;; no result to save ENDM START |