head 1.1; branch 1.1.1; access; symbols add:1.1.1.2 update:1.1.1.2 samiam95124:1.1.1; locks; strict; comment @;; @; 1.1 date 2006.10.07.06.51.56; author samiam95124; state Exp; branches 1.1.1.1; next ; commitid 7b3e45274e8b4567; 1.1.1.1 date 2006.10.07.06.51.56; author samiam95124; state Exp; branches; next 1.1.1.2; commitid 7b3e45274e8b4567; 1.1.1.2 date 2006.10.21.08.41.47; author samiam95124; state Exp; branches; next ; commitid 72bf4539dcde4567; desc @@ 1.1 log @Initial revision @ text @ mvi a,$fd ! enable select 1 to $0000, 1kb out $02 ! select 1 mask register mvi a,$04 ! enable select 2 to $0400, 1kb out $05 ! select 2 compare register mvi a,$fd out $04 mvi a,$00 ! exit bootstrap mode out $00 lxi sp,$0800 ! place stack at top of ram lxi b,$1234 ! load test value push b ! save on stack pop h ! place in hl @ 1.1.1.1 log @8080 CPU project @ text @@ 1.1.1.2 log @8080 CPU project @ text @d1 12 a12 345 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! ! 8080 CPU INSTRUCTION TEST ! ! 2006/10/07 Scott Moore ! ! ! ! 8080 CPU instruction test for hardware simulation. The "cpu8080" ! ! environment, with its select controller and interrupt controller, is ! ! initialized, then we test each instruction type for the 8080. Each register ! ! and mode of each instruction is tested, which is possible for the rather ! ! small instruction set of the 8080. Each result is written out to memory, if ! ! required, so that all results are visible from the outside pins of the 8080. ! ! This means that the pin states would be a valid basis for a vector test. ! ! ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! rom: equ $0000 ! base address of the instruction ROM romlen: equ $0400 ! length of ROM ram: equ $0400 ! base address of instruction RAM ramlen: equ $0400 ! length of RAM ! ! Perform testbench initalize, program select controller to the following: ! ! Select 1 (ROM): base $0000, length $0400 ! Select 2 (RAM): base $0400, length $0400 ! initalize: mvi a,$fd ! enable select 1 to $0000, 1kb out $02 ! select 1 mask register mvi a,$04 ! enable select 2 to $0400, 1kb out $05 ! select 2 compare register mvi a,$fd out $04 mvi a,$00 ! exit bootstrap mode out $00 lxi sp,$0800 ! place stack at top of ram ! ! Instruction test ! ! You'll find the order of instructions to test in "the Intel 8080 Assembly ! language Programming Manual", available online. ! instest: ! ! stc ! cmc ! xra a ! clear A and flags push psw ! send to bus pop psw ! keep stack neutral stc ! set carry push psw ! send to bus pop psw ! keep stack neutral cmc ! clear carry push psw ! send to bus pop psw ! keep stack neutral ! ! inr a ! mvi a,$00 ! a = 0 inr a ! a = 1, no zero, no sign, odd parity, no AC, push psw ! send to bus pop psw ! keep stack neutral inr a ! a = 1, no zero, no sign, odd parity, no AC, push psw ! send to bus pop psw ! keep stack neutral inr a inr a ! a = 3, no zero, no sign, even parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral mvi a,$0f ! a = $0f inr a ! a = $10, no zero, no sign, odd parity, AC push psw ! send to bus pop psw ! keep stack neutral mvi a,$fe ! a = $fe inr a ! a = $ff, no zero, sign, even parity, no AC push psw ! send to bus pop psw ! keep stack neutral inr a ! a = $00, zero, no sign, even parity, AC push psw ! send to bus pop psw ! keep stack neutral ! ! inr b ! mvi b,$00 ! a = 0 inr b ! a = 1, no zero, no sign, odd parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push b ! send to bus pop b ! keep stack neutral inr b ! a = 1, no zero, no sign, odd parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push b ! send to bus pop b ! keep stack neutral inr b inr b ! a = 3, no zero, no sign, even parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push b ! send to bus pop b ! keep stack neutral mvi b,$0f ! a = $0f inr b ! a = $10, no zero, no sign, odd parity, AC push psw ! send to bus pop psw ! keep stack neutral push b ! send to bus pop b ! keep stack neutral mvi b,$fe ! a = $fe inr b ! a = $ff, no zero, sign, even parity, no AC push psw ! send to bus pop psw ! keep stack neutral push b ! send to bus pop b ! keep stack neutral inr b ! a = $00, zero, no sign, even parity, AC push psw ! send to bus pop psw ! keep stack neutral push b ! send to bus pop b ! keep stack neutral ! ! inr c ! mvi c,$00 ! a = 0 inr c ! a = 1, no zero, no sign, odd parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push b ! send to bus pop b ! keep stack neutral inr c ! a = 1, no zero, no sign, odd parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push b ! send to bus pop b ! keep stack neutral inr c inr c ! a = 3, no zero, no sign, even parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push b ! send to bus pop b ! keep stack neutral mvi c,$0f ! a = $0f inr c ! a = $10, no zero, no sign, odd parity, AC push psw ! send to bus pop psw ! keep stack neutral push b ! send to bus pop b ! keep stack neutral mvi c,$fe ! a = $fe inr c ! a = $ff, no zero, sign, even parity, no AC push psw ! send to bus pop psw ! keep stack neutral push b ! send to bus pop b ! keep stack neutral inr c ! a = $00, zero, no sign, even parity, AC push psw ! send to bus pop psw ! keep stack neutral push b ! send to bus pop b ! keep stack neutral ! ! inr d ! mvi d,$00 ! a = 0 inr d ! a = 1, no zero, no sign, odd parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push d ! send to bus pop d ! keep stack neutral inr d ! a = 1, no zero, no sign, odd parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push d ! send to bus pop d ! keep stack neutral inr d inr d ! a = 3, no zero, no sign, even parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push d ! send to bus pop d ! keep stack neutral mvi d,$0f ! a = $0f inr d ! a = $10, no zero, no sign, odd parity, AC push psw ! send to bus pop psw ! keep stack neutral push d ! send to bus pop d ! keep stack neutral mvi d,$fe ! a = $fe inr d ! a = $ff, no zero, sign, even parity, no AC push psw ! send to bus pop psw ! keep stack neutral push d ! send to bus pop d ! keep stack neutral inr d ! a = $00, zero, no sign, even parity, AC push psw ! send to bus pop psw ! keep stack neutral push d ! send to bus pop d ! keep stack neutral ! ! inr e ! mvi e,$00 ! a = 0 inr e ! a = 1, no zero, no sign, odd parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push d ! send to bus pop d ! keep stack neutral inr e ! a = 1, no zero, no sign, odd parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push d ! send to bus pop d ! keep stack neutral inr e inr e ! a = 3, no zero, no sign, even parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push d ! send to bus pop d ! keep stack neutral mvi e,$0f ! a = $0f inr e ! a = $10, no zero, no sign, odd parity, AC push psw ! send to bus pop psw ! keep stack neutral push d ! send to bus pop d ! keep stack neutral mvi e,$fe ! a = $fe inr e ! a = $ff, no zero, sign, even parity, no AC push psw ! send to bus pop psw ! keep stack neutral push d ! send to bus pop d ! keep stack neutral inr e ! a = $00, zero, no sign, even parity, AC push psw ! send to bus pop psw ! keep stack neutral push d ! send to bus pop d ! keep stack neutral ! ! inr h ! mvi h,$00 ! a = 0 inr h ! a = 1, no zero, no sign, odd parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push h ! send to bus pop h ! keep stack neutral inr h ! a = 1, no zero, no sign, odd parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push h ! send to bus pop h ! keep stack neutral inr h inr h ! a = 3, no zero, no sign, even parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push h ! send to bus pop h ! keep stack neutral mvi h,$0f ! a = $0f inr h ! a = $10, no zero, no sign, odd parity, AC push psw ! send to bus pop psw ! keep stack neutral push h ! send to bus pop h ! keep stack neutral mvi h,$fe ! a = $fe inr h ! a = $ff, no zero, sign, even parity, no AC push psw ! send to bus pop psw ! keep stack neutral push h ! send to bus pop h ! keep stack neutral inr h ! a = $00, zero, no sign, even parity, AC push psw ! send to bus pop psw ! keep stack neutral push h ! send to bus pop h ! keep stack neutral ! ! inr l ! mvi l,$00 ! a = 0 inr l ! a = 1, no zero, no sign, odd parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push h ! send to bus pop h ! keep stack neutral inr l ! a = 1, no zero, no sign, odd parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push h ! send to bus pop h ! keep stack neutral inr l inr l ! a = 3, no zero, no sign, even parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral push h ! send to bus pop h ! keep stack neutral mvi l,$0f ! a = $0f inr l ! a = $10, no zero, no sign, odd parity, AC push psw ! send to bus pop psw ! keep stack neutral push h ! send to bus pop h ! keep stack neutral mvi l,$fe ! a = $fe inr l ! a = $ff, no zero, sign, even parity, no AC push psw ! send to bus pop psw ! keep stack neutral push h ! send to bus pop h ! keep stack neutral inr l ! a = $00, zero, no sign, even parity, AC push psw ! send to bus pop psw ! keep stack neutral push h ! send to bus pop h ! keep stack neutral ! ! dcr a ! mvi a,$00 ! a = $00 dcr a ! a = $ff, no zero, sign, even parity, no AC, ! carry x push psw ! send to bus pop psw ! keep stack neutral dcr a ! a = $fe, no zero, sign, odd parity, no AC, push psw ! send to bus pop psw ! keep stack neutral mvi a,$10 ! a = $10 dcr a ! a = $0f, no zero, no sign, odd parity, AC push psw ! send to bus pop psw ! keep stack neutral mvi a,$01 ! a = $01 dcr a ! a = $00, zero, no sign, even parity, no AC push psw ! send to bus pop psw ! keep stack neutral @