Newlib's memcpy() (MIPS-optimized) uses this for unaligned copy.
Consectutive load instructions without nops using same target register (which is legal) like
lw $1, 0(mem)
lwl $1, 1(mem)
or
lwl $1, 0(mem)
lwr $1, 1(mem)
or similar, lead to incorrect result. Now it's fixed.
git-svn-id: http://moon:8086/svn/vhdl/trunk@519 cc03376c-175c-47c8-b038-4cd826a8556b
- added tx_int and rx_int to status reg
- tx-int is acked by writing to ctrl reg
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@507 cc03376c-175c-47c8-b038-4cd826a8556b
Exception vector is reset vector at (X"BFC00000")
- added pin 'eb' for endian little/big choice. 'eb' is sampled at reset
- UART(): merged TX and RX interrupt to one interrupt line
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@498 cc03376c-175c-47c8-b038-4cd826a8556b
Exception vector is reset vector at (X"BFC00000")
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@497 cc03376c-175c-47c8-b038-4cd826a8556b
- added more programs
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@496 cc03376c-175c-47c8-b038-4cd826a8556b
S/W can write exception handler entry to this table.
Exception handler can now reside anywhere in memory.
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@494 cc03376c-175c-47c8-b038-4cd826a8556b
Exception vector is reset vector at (X"BFC00000")
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@490 cc03376c-175c-47c8-b038-4cd826a8556b
Exception vector is reset vector at (X"BFC00000")
- Interrupt pending flags (IP) are not masked in hardware by IM.
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@489 cc03376c-175c-47c8-b038-4cd826a8556b
- Removed possibility of writng read-only status bits
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@481 cc03376c-175c-47c8-b038-4cd826a8556b
This minimizes pc.nxt MUX (Better timing)
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@475 cc03376c-175c-47c8-b038-4cd826a8556b
- CPU is configured as BIG-endian
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@474 cc03376c-175c-47c8-b038-4cd826a8556b
Use fifo_sync instead and specified ditributed ram_style
in XCF-file during synthesis
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@473 cc03376c-175c-47c8-b038-4cd826a8556b
Use fifo_sync instead and specified ditributed ram_style
in XCF-file during synthesis
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@472 cc03376c-175c-47c8-b038-4cd826a8556b
- added separate reg_pointer for read/write
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@470 cc03376c-175c-47c8-b038-4cd826a8556b
jens