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Added missing VIA register names.

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This commit is contained in:
Olli Savia 2018-04-20 21:24:37 +03:00
parent 53df4da8e8
commit 7292b571de
1 changed files with 19 additions and 5 deletions
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24
asminc/pet.inc
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@ -61,8 +61,22 @@ NMIVec := $0094
; ---------------------------------------------------------------------------
; I/O: 6522 VIA2
VIA := $E840
VIA_PRB := $E840
VIA_PRA := $E841
VIA_DDRB := $E842
VIA_DDRA := $E843
VIA := $E840 ; VIA base address
VIA_PB := VIA+$0 ; Port register B
VIA_PA1 := VIA+$1 ; Port register A
VIA_PRB := VIA+$0 ; *** Deprecated ***
VIA_PRA := VIA+$1 ; *** Deprecated ***
VIA_DDRB := VIA+$2 ; Data direction register B
VIA_DDRA := VIA+$3 ; Data direction register A
VIA_T1CL := VIA+$4 ; Timer 1, low byte
VIA_T1CH := VIA+$5 ; Timer 1, high byte
VIA_T1LL := VIA+$6 ; Timer 1 latch, low byte
VIA_T1LH := VIA+$7 ; Timer 1 latch, high byte
VIA_T2CL := VIA+$8 ; Timer 2, low byte
VIA_T2CH := VIA+$9 ; Timer 2, high byte
VIA_SR := VIA+$A ; Shift register
VIA_CR := VIA+$B ; Auxiliary control register
VIA_PCR := VIA+$C ; Peripheral control register
VIA_IFR := VIA+$D ; Interrupt flag register
VIA_IER := VIA+$E ; Interrupt enable register
VIA_PA2 := VIA+$F ; Port register A w/o handshake