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|
; serial transfer-related
SendPrinterPacket:
push hl
ld hl, wce64
; Preamble
ld a, $88
ld [hli], a ; [wce64] ← $88
ld a, $33
ld [hli], a ; [wce65] ← $33
; Header
ld [hl], d ; [wce66] ← d
inc hl
ld [hl], e ; [wce67] ← e
inc hl
ld [hl], c ; [wce68] ← c
inc hl
ld [hl], b ; [wce69] ← b
inc hl
pop de
ld [hl], e ; [wPrinterPacketDataPtr] ← l
inc hl
ld [hl], d ; [wce6b] ← h
inc hl
ld de, $ff45
ld [hl], e ; [wce6c] ← $45
inc hl
ld [hl], d ; [wce6d] ← $ff
ld hl, wSerialDataPtr
ld [hl], LOW(wce64) ; [wSerialDataPtr] ← $64
inc hl
ld [hl], HIGH(wce64) ; [wSerialDataPtr] ← $ce
call Func_0e8e
ld a, $1
ld [wce63], a ; [wce63] ← 1
call Func_31fc
.asm_315d
call DoFrame
ld a, [wce63]
or a
jr nz, .asm_315d
call ResetSerial
ld bc, 1500
.asm_316c
dec bc
ld a, b
or c
jr nz, .asm_316c
ld a, [wce6e]
cp $81
jr nz, .asm_3182
ld a, [wPrinterStatus]
ld l, a
and $f1
ld a, l
ret z
scf
ret
.asm_3182
ld a, $ff
ld [wPrinterStatus], a
scf
ret
Func_3189:
ld hl, PointerTable_3190
dec a
jp JumpToFunctionInTable
PointerTable_3190:
dw Func_31a8
dw Func_31a8
dw Func_31a8
dw Func_31a8
dw Func_31a8
dw Func_31b0
dw Func_31ca
dw Func_31dd
dw Func_31e5
dw Func_31ef
dw Func_31ea
dw Func_31f2
Func_31a8:
call Func_31fc
Func_31ab:
ld hl, wce63
inc [hl]
ret
Func_31b0:
call Func_31ab
ld hl, wce68
ld a, [hli]
or [hl]
jr nz, .set_data_ptr
call Func_31ab
jr Func_31dd
.set_data_ptr
ld hl, wPrinterPacketDataPtr
ld de, wSerialDataPtr
ld a, [hli]
ld [de], a
inc de
ld a, [hl]
ld [de], a
; fallthrough
Func_31ca:
call Func_31fc
ld hl, wce68
ld a, [hl]
dec [hl]
or a
jr nz, .asm_31d8
inc hl
dec [hl]
dec hl
.asm_31d8
ld a, [hli]
or [hl]
jr z, Func_31ab
ret
Func_31dd:
ld a, [wce6c]
Func_31e0:
call Func_3212
jr Func_31ab
Func_31e5:
ld a, [wce6d]
jr Func_31e0
Func_31ea:
ldh a, [rSB]
ld [wce6e], a
Func_31ef:
xor a
jr Func_31e0
Func_31f2:
ldh a, [rSB]
ld [wPrinterStatus], a
xor a
ld [wce63], a
ret
Func_31fc:
ld hl, wSerialDataPtr
ld e, [hl]
inc hl
ld d, [hl]
ld a, [de]
inc de
ld [hl], d
dec hl
ld [hl], e
ld e, a
ld hl, wce6c
add [hl]
ld [hli], a
ld a, $0
adc [hl]
ld [hl], a
ld a, e
; fallthrough
Func_3212:
ldh [rSB], a
ld a, SC_INTERNAL
ldh [rSC], a
ld a, SC_START | SC_INTERNAL
ldh [rSC], a
ret
|
