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Implement SSC detection

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Joshua Bell
2017-11-27 22:15:51 -08:00
parent 4ae4933aa4
commit facca9d28e
1 changed files with 16 additions and 2 deletions
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18
cricket.system.s
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@@ -162,7 +162,21 @@ cloop: iny
dey dey
bpl :- bpl :-
;; TODO: Confirm SSC in slot 2 ;; Check Slot 2 for SSC. ID bytes per:
;; Apple II Technical Note #8: Pascal 1.1 Firmware Protocol ID Bytes
lda $C205
cmp #$38
bne not_found
lda $C207
cmp #$17
bne not_found
lda $C20B
cmp #$01
bne not_found
lda $C20C
cmp #$31
bne not_found
;; TODO: Write NUL and check for 'C' ... version ... $8D (CR) ;; TODO: Write NUL and check for 'C' ... version ... $8D (CR)
;; https://github.com/inexorabletash/cricket/issues/3 ;; https://github.com/inexorabletash/cricket/issues/3
@@ -574,7 +588,7 @@ self_name:
beq :- ; nope, keep waiting beq :- ; nope, keep waiting
;; Send command ;; Send command
lda #('@' | $80) ; '@' command lda #HI('@') ; '@' command
sta TDREG sta TDREG
read_len := 7 ; read 7 bytes (w/m/d/y/H/M/S) read_len := 7 ; read 7 bytes (w/m/d/y/H/M/S)