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MIPS/opcodes: Correct documentation for R6 operand types

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The "-t", "-u", "-v", and "-w" operand types refer 'rt' operand, which
is the target register rather than the source register.  Additionally
the "-x" and "-y" R6 operand types refer 'rs' rather than 'rt' operand
of the BOVC/BNVC and the BEQC/BNEC instructions respectively.  Also the
"-x" operand type does not permit 'rs' to be the same as 'rt'.

Correct inline documentation in opcode/mips.h accordingly.
This commit is contained in:
Maciej W. Rozycki
2024-07-19 11:42:16 +01:00
parent e6f05f3659
commit 0f3e1d2708
1 changed files with 6 additions and 7 deletions
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13
include/opcode/mips.h
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@@ -984,13 +984,12 @@ mips_opcode_32bit_p (const struct mips_opcode *mo)
"-b" (-131072 .. 131071) << 3 at bit 0
"-d" Same as destination register GP
"-s" 5 bit source register specifier (OP_*_RS) not $0
"-t" 5 bit source register specifier (OP_*_RT) not $0
"-u" 5 bit source register specifier (OP_*_RT) greater than OP_*_RS
"-v" 5 bit source register specifier (OP_*_RT) not $0 not OP_*_RS
"-w" 5 bit source register specifier (OP_*_RT) less than or equal to OP_*_RS
"-x" 5 bit source register specifier (OP_*_RT) greater than or
equal to OP_*_RS
"-y" 5 bit source register specifier (OP_*_RT) not $0 less than OP_*_RS
"-t" 5 bit target register specifier (OP_*_RT) not $0
"-u" 5 bit target register specifier (OP_*_RT) greater than OP_*_RS
"-v" 5 bit target register specifier (OP_*_RT) not $0 not OP_*_RS
"-w" 5 bit target register specifier (OP_*_RT) less than or equal to OP_*_RS
"-x" 5 bit source register specifier (OP_*_RS) greater than OP_*_RT
"-y" 5 bit source register specifier (OP_*_RS) not $0 less than OP_*_RT
"-A" symbolic offset (-262144 .. 262143) << 2 at bit 0
"-B" symbolic offset (-131072 .. 131071) << 3 at bit 0