Cycle calculation errors

[shokre]

It appears that cycle count constants are not correct.

Consulting this reference, all of the branch instructions take 2cy, +1 if branch occurs on the same page, and +2 if branch occurs on different page. Yet in the emulator most of the branch instructions are set to 4cy (except BVS 3cy), and +1 if the branch occurs. Page checking is not accounted.

Consulting the same reference LDA oper,X takes 4cy, +1 if page boundary is crossed, yet the emulator consumes 5cy regardless of crossing page boundary.

    ldx #0
    lda $22F0,x

and

    ldx #$20
    lda $22F0,x

(excluding LDX) both consume 5cy in the emulator, regardless of first not crossing the page boundary.

Same issue is also present with LDA oper,Y

[shokre]

Same problem is also present in JS version of the emulator.