23 Commits

Author	SHA1	Message	Date
vin	44273e69b9	add separate implied/accumulator functions for certain opcodes	2024-06-11 15:08:53 +05:30
vin	a3189d90af	add jsr, rti, rts	2024-06-10 23:27:14 +05:30
vin	3412a03a5e	implement untested most of stack-related opcodes	2024-06-10 23:27:11 +05:30
vin	dbb952a52b	add lsr, rol, ror	2024-06-10 14:33:12 +05:30
vin	ebdf50cdf3	implement tay, txa, tya	2024-06-10 14:28:13 +05:30
vin	454276a50c	implement sta, stx, sty	2024-06-10 14:28:13 +05:30
vin	e07d5917a1	implement se?() opcodes and remove extra 65c02 opcodes	2024-06-10 14:28:07 +05:30
vin	23008662ce	implement more instructions	2024-06-09 22:50:33 +05:30
vin	68ecbce235	add opcode_mem() function to return memory address and not pre-peek ... Of course all of these opcodes need to be tested later...	2024-06-09 22:15:21 +05:30
vin	c417bf2276	add memory writing functions	2024-06-09 16:07:09 +05:30
vin	4db0a8163e	implement some more instructions and branching?	2024-06-09 16:02:04 +05:30
vin	858cbfba48	fix potential adc overflow flag bug	2024-06-09 15:35:31 +05:30
vin	76b9059b2e	add blank todo opcode functions based on opcode json	2024-06-09 13:11:05 +05:30
vin	207c6903f5	programmatically create switch cases for opcodes based on opcode json ... The JSON is from https://github.com/ericTheEchidna/65C02-JSON/ and saved me a lot of time from writing the cases for each opcode by hand.	2024-06-09 13:08:31 +05:30
vin	72e29b3d25	move addressing mode parsing into separate function	2024-06-08 22:08:51 +05:30
vin	1ac30a026b	add adc and actually fix peek/16	2024-06-08 17:41:17 +05:30
vin	bd85b80ba7	fix peek	2024-06-04 17:48:34 +05:30
vin	36a8eefd00	shorten addressing mode enum names	2024-06-04 16:16:48 +05:30
vin	7245191e86	add peek(), peek16(), and finish lda()	2024-06-04 15:54:09 +05:30
vin	10567e0be8	load program rom into proper offset in memory	2024-05-24 12:55:44 +05:30
vin	8493837ef9	implement tax and inx and print status each time	2024-05-24 12:20:04 +05:30
vin	24ca08a83d	add lda immediate and brk	2024-05-24 11:50:08 +05:30
vin	dd757c4324	start working on 6502 cpu	2024-05-20 19:39:23 +05:30