412 lines
4.9 KiB
ArmAsm
412 lines
4.9 KiB
ArmAsm
; VMW Chiptune Dumper
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; for debug purposes prints the raw values to screen
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; we re-route this to the printer in Slot #1 for debugging
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.include "zp.inc"
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.include "hardware.inc"
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PT3_LOC = $4000
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PT3_USE_ZERO_PAGE = 1
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;=============================
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; Setup
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;=============================
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pt3_setup:
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jsr HOME
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jsr TEXT
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; Init disk code
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jsr rts_init
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; init variables
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lda #0
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sta DRAW_PAGE
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sta DONE_PLAYING
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sta WHICH_FILE
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; Set to 1MHz mode (no translate) for validation purposes
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lda #$18
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sta convert_177_smc1
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sta convert_177_smc2
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sta convert_177_smc3
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sta convert_177_smc4
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sta convert_177_smc5
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;==================
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; load first song
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;==================
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; Set COUT to the printer in PR#1
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lda #$02
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sta $36
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lda #$C1
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sta $37
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jsr new_song
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;============================
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; Loop forever
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;============================
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main_loop:
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jsr pt3_make_frame
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lda FRAMEH
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jsr PRBYTE
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lda FRAMEL
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jsr PRBYTE
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lda #':'+$80
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jsr COUT
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lda #' '+$80
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jsr COUT
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; A
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lda #'A'+$80
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jsr COUT
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lda #':'+$80
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jsr COUT
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lda AY_REGISTERS+1
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jsr PRBYTE
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lda AY_REGISTERS+0
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jsr PRBYTE
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lda #' '+$80
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jsr COUT
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; B
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lda #'B'+$80
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jsr COUT
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lda #':'+$80
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jsr COUT
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lda AY_REGISTERS+3
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jsr PRBYTE
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lda AY_REGISTERS+2
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jsr PRBYTE
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lda #' '+$80
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jsr COUT
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; C
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lda #'C'+$80
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jsr COUT
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lda #':'+$80
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jsr COUT
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lda AY_REGISTERS+5
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jsr PRBYTE
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lda AY_REGISTERS+4
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jsr PRBYTE
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lda #' '+$80
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jsr COUT
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; N
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lda #'N'+$80
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jsr COUT
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lda #':'+$80
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jsr COUT
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lda AY_REGISTERS+6
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jsr PRBYTE
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lda #' '+$80
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jsr COUT
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; M
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lda #'M'+$80
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jsr COUT
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lda #':'+$80
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jsr COUT
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lda AY_REGISTERS+7
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jsr PRBYTE
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lda #' '+$80
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jsr COUT
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jsr CROUT1
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ldx #6
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six_space:
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lda #' '+$80
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jsr COUT
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dex
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bne six_space
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; A amp
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lda #'V'+$80
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jsr COUT
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lda #':'+$80
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jsr COUT
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lda AY_REGISTERS+8
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jsr PRBYTE
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lda #' '+$80
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jsr COUT
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lda #' '+$80
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jsr COUT
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lda #' '+$80
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jsr COUT
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; B amp
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lda #'V'+$80
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jsr COUT
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lda #':'+$80
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jsr COUT
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lda AY_REGISTERS+9
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jsr PRBYTE
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lda #' '+$80
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jsr COUT
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lda #' '+$80
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jsr COUT
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lda #' '+$80
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jsr COUT
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; C amp
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lda #'V'+$80
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jsr COUT
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lda #':'+$80
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jsr COUT
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lda AY_REGISTERS+10
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jsr PRBYTE
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lda #' '+$80
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jsr COUT
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lda #' '+$80
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jsr COUT
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lda #' '+$80
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jsr COUT
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; Envelope
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lda #'E'+$80
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jsr COUT
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lda #':'+$80
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jsr COUT
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lda AY_REGISTERS+12
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jsr PRBYTE
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lda AY_REGISTERS+11
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jsr PRBYTE
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; Envelope type
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lda #','+$80
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jsr COUT
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lda AY_REGISTERS+13
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jsr PRBYTE
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jsr CROUT1
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inc FRAMEL
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bne no_frame_oflo
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inc FRAMEH
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no_frame_oflo:
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; STOP EARLY for DEBUGGING
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; lda FRAMEL
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; cmp #$A4
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; bne checkcheck
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; lda FRAMEH
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; cmp #$1
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; beq all_done
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;checkcheck:
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; check if end
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lda DONE_SONG
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bne all_done
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jmp main_loop
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all_done:
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jmp all_done
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;=================
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; load a new song
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;=================
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new_song:
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;=========================
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; Init Variables
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;=========================
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;===========================
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; Load in PT3 file
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;===========================
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jsr get_filename
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; needs to be space-padded $A0 30-byte filename
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lda #<readfile_filename
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sta namlo
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lda #>readfile_filename
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sta namhi
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ldy #0
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ldx #30 ; 30 chars
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name_loop:
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lda (INL),Y
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beq space_loop
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ora #$80
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sta (namlo),Y
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iny
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dex
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bne name_loop
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beq done_name_loop
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space_loop:
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lda #$a0 ; pad with ' '
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sta (namlo),Y
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iny
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dex
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bne space_loop
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done_name_loop:
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; open and read a file
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; loads to whatever it was BSAVED at (default is $2000)
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jsr read_file ; read PT3 file from disk
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;=========================
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; Print Info
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;=========================
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; NUL terminate the strings we want to print
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lda #0
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sta PT3_LOC+$3E
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sta PT3_LOC+$62
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; print title
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lda #>(PT3_LOC+$1E) ; point to header title
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sta OUTH
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lda #<(PT3_LOC+$1E)
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sta OUTL
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jsr print_cout
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jsr CROUT1
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; Print Author
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lda #>(PT3_LOC+$42) ; point to header title
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sta OUTH
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lda #<(PT3_LOC+$42)
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sta OUTL
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jsr print_cout
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jsr CROUT1
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jsr CROUT1
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jsr pt3_init_song
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rts
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;==================
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; Get filename
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;==================
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; WHICH_FILE holds number
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; MAX_FILES has max
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; Scroll through until find
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; point INH:INL to it
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get_filename:
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ldy #0
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ldx WHICH_FILE
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lda #<song_list ; point to filename
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sta INL
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lda #>song_list
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sta INH
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get_filename_loop:
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cpx #0
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beq filename_found
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inner_loop:
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iny
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lda (INL),Y
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bne inner_loop
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iny
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dex
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jmp get_filename_loop
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filename_found:
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tya
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clc
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adc INL
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sta INL
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lda INH
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adc #0
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sta INH
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rts
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;===============
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; print cout
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;===============
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print_cout:
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ldy #0
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cout_loop:
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lda (OUTL),Y
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beq cout_done
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clc
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adc #$80
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jsr COUT
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iny
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jmp cout_loop
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cout_done:
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rts
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FRAMEL: .byte $00
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FRAMEH: .byte $00
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;==========
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; filenames
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;==========
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song_list:
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; .asciiz "IT.PT3" ; ST
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; .asciiz "CR.PT3" ; ST
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; .asciiz "EA.PT3" ; ST
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; .asciiz "RI.PT3" ; ST
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; .asciiz "OO.PT3" ; ASM_34_35
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.asciiz "DY.PT3" ; ASM_34_35
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; .asciiz "BH.PT3" ; PT_34_35
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; .asciiz "CH.PT3" ; REAL_34_35
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;=========
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;routines
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;=========
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.include "qkumba_rts.s"
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;.include "../pt3_lib/pt3_lib.s"
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.include "pt3_lib_core.s"
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.include "pt3_lib_init.s"
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;============
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; dummy vars
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;============
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pt3_loop_smc:
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