63729473a5
[opcodes, pk, sim, xcc] Tweaked FP encoding
16 years ago
3f0c7368c8
[opcodes] generate latex and verilog correctly
16 years ago
e45fd54d56
[pk] minor PK bugfix
16 years ago
783c0ec831
[pk] various PK cleanups/speedups
16 years ago
16a55362ca
[xcc, sim, pk, opcodes] new instruction encoding!
16 years ago
4daccfc1cf
[xcc, sim, pk] link register is now x1
16 years ago
664411d5e6
[opcodes, pk, sim, xcc] made jumps shorter and PC-relative
16 years ago
9fe7d4f656
[pk,sim,xcc] get rid of at register, introduce tp register
16 years ago
6ba19295c0
[sim,xcc,pk,opcodes] static rounding modes for FP insns
Now, you can either use the RM in the FSR or specify it in the insn.
(Except for FP->int; no dynamic for that.)
16 years ago
f415fce416
[pk] assume FSR exists even if FP is unsupported
16 years ago
77c382ff23
[pk] improved performance of fp emulation
16 years ago
68879a67d0
Revert "[pk] restore correct value to $x1/$x2 after trap"
This reverts commit c08c11ad7ea573313668b0231a18a5ea4515eea5.
16 years ago
992187797b
[pk] restore correct value to $x1/$x2 after trap
16 years ago
3b681865c6
[pk] cleaned up FP initialization code
16 years ago
9297008e44
[pk] zero out fp regs
16 years ago
b4fd490d68
[pk, sim] added FPU emulation support to proxy kernel
16 years ago
2b7fd5fa6a
[pk] no amos for now, add a sync before triggering the frontend
16 years ago
3aaacd4476
[xcc,sim] eliminated vectored traps
now, the evec register holds the address that all traps vector to,
and the cause register is set with the trap number.
16 years ago
74727add67
[xcc] the great assembler cleanup, part 6
Note that we get spurious warnings because gcc is still generating
such directives as .set noat and .set noreorder, which are now
meaningless.
16 years ago
5973faacb9
[sim, pk] cleaned up exception vectors and FP exc flags
16 years ago
03e016c3d7
[pk, sim] added interrupt support to sim; added timer interrupt
16 years ago
7fc9ae774b
[pk] new register names
16 years ago
d196c68c35
[pk] new register mappings
16 years ago
2351867c65
[sim, xcc] added PCRs to replace k0 and k1
16 years ago
fb6dba8fb1
[pk] use __sync_* builtins for atomics
16 years ago
dd84f5743d
[pk] proxy kernel support for mixed 32b/64b operation
16 years ago
0490917555
[fesvr] added support for 32b and 64b ELFs
16 years ago
79a84855df
[pk] Fixed broken PK build process (moved boot into a .c file)
16 years ago
29cc0dc985
[pk,fesvr] improved proxykernel build system
Now uses a modified MCPPBS. Add --host=riscv to configure path.
Front-end server now just searches PATH for riscv-pk, so just install the pk
to somewhere in your path.
16 years ago
e97220c9bf
[xcc] Removed ctc1, cfc1 instructions; added fp move test case
16 years ago
e0d20b2e2d
[xcc,pk,sim] Added first part of FP support
In particular, FP loads, stores, and moves now work.
16 years ago
b93785370d
[pk,sim,xcc] Renamed instructions to RISC-V spec
All word-sized arithmetic operations are now postfixed with 'w',
and all double-word-sized arithmetic operations are no longer
prefixed with 'd'. mtc0/mfc0 are removed and replaced with
mfpcr/mtpcr/mwfpcr/mwtpcr.
16 years ago
8b9b445a19
[fesvr,pk,xcc] support argc and argv
16 years ago
be79835df7
[pk] change fromhost loop condition
16 years ago
37ad02e28a
[pk] fixed open syscall parameter being discarded
16 years ago
7fa95f96af
[pk,libgloss] added more front-end system calls
16 years ago
4680e0d2d0
[pk,sim] removed cop0 console i/o support
16 years ago
b24c0f1a1e
[pk,sim] first cut of appserver communication link
16 years ago
263c2ff7d8
[pk,sim] added temporary "exit" functionality
16 years ago
9c43984729
Reorganized directory structure
Moved cross-compiler to /xcc/ rather than /
Added ISA sim in /sim/
Added Proxy Kernel in /pk/ (to be cleaned up)
Added opcode map to /opcodes/ (ditto)
Added documentation to /doc/
16 years ago
Andrew Waterman
Yunsup Lee
Andrew Waterman
Andrew Waterman