Closed zu2 closed 1 month ago
--- ../Fuzix-Compiler-Kit/support6800/__xdiveq.s 2024-10-02 15:56:16 +++ support6800/__xdiveq.s 2024-10-08 17:07:08 @@ -19,10 +19,9 @@ bsr absd staa @tmp stab @tmp+1 - ldaa ,x ldab 1,x - bita #0x80 - bne negmod + ldaa ,x + bmi negmod staa @tmp1 stab @tmp1+1 ldaa @tmp @@ -62,7 +61,7 @@ ldab 1,x bsr absd staa @tmp1 - stab @tmp+1 + stab @tmp1+1 ldaa @tmp ldab @tmp+1 ldx @tmp1 @@ -72,18 +71,17 @@ ldaa @tmp ldab @tmp+1 ror @tmp4 - bcs store ; low bit set -> negate + bcc store ; low bit set -> negate bsr negd bra store absd: - bita #$80 - beq ispos + tsta + bpl ispos inc @tmp4 ; count sign changes in Y negd: - subb #1 ; negate d + nega + negb sbca #0 - coma - comb ispos: rts