multiply with carry generator, in 16-bit intel

EDIT 2019-05-11: looking back at this, I was wrong for the first value. It was listed as 65532, but to ensure a full cycle you must use 65526. Sorry!

based on the prime 65526*65535-1, which has 65535 as a primitive root. period is around 2^32.

13C8:0200 52            PUSH    DX
13C8:0201 B80000        MOV     AX,0000
13C8:0204 BAFCFF        MOV     DX,FFF6
13C8:0207 F7E2          MUL     DX
13C8:0209 050100        ADD     AX,0001
13C8:020C 83D200        ADC     DX,+00
13C8:020F 01D0          ADD     AX,DX
13C8:0211 7302          JNB     0215
13C8:0213 40            INC     AX
13C8:0214 42            INC     DX
13C8:0215 2E            CS:
13C8:0216 A30202        MOV     [0202],AX
13C8:0219 2E            CS:
13C8:021A 89160A02      MOV     [020A],DX
13C8:021E 5A            POP     DX
13C8:021F C3            RET

and the complementary version, based on the prime 65518*65535+1:

1444:0200 52            PUSH    DX
1444:0201 B80000        MOV     AX,0000
1444:0204 BAEEFF        MOV     DX,FFEE
1444:0207 F7E2          MUL     DX
1444:0209 050000        ADD     AX,0000
1444:020C 83D200        ADC     DX,+00
1444:020F 01D0          ADD     AX,DX
1444:0211 7302          JNB     0215
1444:0213 40            INC     AX
1444:0214 42            INC     DX
1444:0215 F7D0          NOT     AX
1444:0217 48            DEC     AX
1444:0218 2E            CS:
1444:0219 A30202        MOV     [0202],AX
1444:021C 2E            CS:
1444:021D 89160A02      MOV     [020A],DX
1444:0221 5A            POP     DX
1444:0222 C3            RET