Another Milestone

I’m definitely getting behind on the proper tests. I already have another milestone.

Run at 2017-05-30 15:32:35 +0000

Z80all instruction exerciser
 hl,....  OK
add hl,..........  OK
add ix,..........  OK
add iy,..........  OK
aluop a,nn....................  OK
aluop a,<b>..  OK
aluop a,.....  OK
aluop a,(+1)...........  OK
bit n,(+1).............  OK
bit n,<b>....  OK
cpd........................  OK
cpi........................  OK
.............  OK
 a...................  OK
 b...................  OK
 bc..................  OK
 c...................  OK
 d...................  OK
 de..................  OK
 e...................  OK
 h...................  OK
 hl..................  OK
 ix..................  OK
 iy..................  OK
 l...................  OK
 (hl)................  OK
 sp..................  OK
 (+1).........  OK
 ixh.................  OK
 ixl.................  OK
 iyh.................  OK
 iyl.................  OK
ld ,(nnnn).............  OK
ld hl,(nnnn)..................  OK
ld sp,(nnnn)..................  OK
ld ,(nnnn).............  OK
ld (nnnn),.............  OK
ld (nnnn),hl..................  OK
ld (nnnn),sp..................  OK
ld (nnnn),.............  OK
ld ,nnnn.........  OK
ld ,nnnn...............  OK
ld a,..............  OK
ld <b>,nn....  OK
ld (+1),nn.............  OK
ld <b>,(+1)......  OK
ld ,(+1)..........  OK
ld a,(+1)..............  OK
ld ,nn.......  OK
ld ,........  OK
ld ,........  OK
ld a,(nnnn) / ld (nnnn),a.....  OK
ldd (1)....................  OK
ldd (2)....................  OK
ldi (1)....................  OK
ldi (2)....................  OK
neg...........................  OK
.....................  OK
...........  OK
shf/rot (+1)...........  OK
shf/rot <b>..  OK
 n,.....  OK
 n,(+1).......  OK
ld (+1),<b>......  OK
ld (+1),..........  OK
ld (+1),a..............  OK
ld (),a................  OK
Tests complete
47394502273 t-states in 217.548205865 secs for 217.857472483183 MHz

The zexall test now works. I had some tricky issues surrounding an undocumented register – the wz register and the X and Y flags, but it’s all good. I still have a lot of instructions to implement, especially with respect to relative jumps and interrupts, all the IO instructions. IO instructions are a new thing for me, the 6502 doesn’t have them.

The speed has dropped a bit. I think this is largely due to some new operators I introduced to make the code more succinct. For example, all the memory reads for instructions went along the lines of:

readData(address: pc)
pc = pc &+ 1

Now look more like

readData(address: pc&++)

The &++ operator is probably not being inlined.