TMS7000: BTJOP/BTJZP for constants first operand is not a Register

[electrickery]

The first operand of the BTJOP/BTJZP instructions can be a Register A or B or a constant
The A6 and A7 opcodes are for the constant.
The following, from my disassembly should all be constant-comparisons. The
A and B register variants have different opcodes (86, 87, 96, 97). A and B are also known as R0 and R1.

    F9F8:    A7 08 10 08    BTJZP    R8, P$10,  $FA04
    FB3D:    A6 01 04 04    BTJOP    R1, PORTA, AL_0008
    FD00:    A7 02 11 05    BTJZP    R2, P$11,  AL_0015
    FF0F:    A7 01 11 F2    BTJZP    R1, P$11,  AL_0029

(tested with the latest version)