4 ms·
6502 decimal mode is a flag that changes the behavior of arithmetic operations; there’s no easy way to convert BCD<->binary
by krallja 4y ago
6502 decimal mode is a flag that changes the behavior of arithmetic operations; there’s no easy way to convert BCD<->binary
- rep_lodsb 4y agoBut the way it changes ALU operation is similar in effect to doing "DAS" after subtraction (it doesn't "convert" to BCD, only adjusts the result). There may be differences in how invalid BCD values are handled though.