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comparison m68k.cpu @ 2472:f171a12fc98c

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Implement swap instruction in new 68K core
author Michael Pavone <pavone@retrodev.com>
date Sun, 25 Feb 2024 23:32:19 -0800
parents 6bec9e66d0db
children ea37200967c7
comparison
equal deleted inserted replaced
2471:2f4c17b4fe10 2472:f171a12fc98c
1731 aregs.R = a7 1731 aregs.R = a7
1732 sext 32 scratch1 scratch1 1732 sext 32 scratch1 scratch1
1733 a7 += scratch1 1733 a7 += scratch1
1734 m68k_prefetch 1734 m68k_prefetch
1735 1735
1736 0100100001000RRR swap
1737 ror dregs.R 16 dregs.R
1738 update_flags NZV0C0
1739 m68k_prefetch
1740
1736 0100111001110000 reset 1741 0100111001110000 reset
1737 if reset_handler 1742 if reset_handler
1738 pcall reset_handler m68k_reset_handler context 1743 pcall reset_handler m68k_reset_handler context
1739 end 1744 end
1740 cycles 128 1745 cycles 128