390 lines
6.7 KiB
ArmAsm
390 lines
6.7 KiB
ArmAsm
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; For XA65 compatibily in the future
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.FEATURE c_comments,labels_without_colons,pc_assignment, loose_char_term
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.export _ch376_set_file_name
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.export _ch376_file_open
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.export _ch376_ic_get_version
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.export _ch376_reset
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.export _ch376_check_exist
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.export _ch376_disk_mount
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.export _ch376_set_usb_mode
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.export _ch376_file_close
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.export _ch376_seek_file
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.export _ch376_file_create
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.export _ch376_fwrite
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; High level function
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.import popax
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.include "zeropage.inc"
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.include "telemon30.inc"
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/*
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*/
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; CODE FOR CH376_SET_USB_MODE *************************************************
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CH376_SET_USB_MODE_CODE_USB_HOST_SOF_PACKAGE_AUTOMATICALLY := $06
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CH376_USB_INT_SUCCESS := $14
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CH376_USB_INT_CONNECT := $15
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CH376_USB_INT_DISCONNECT := $16
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CH376_USB_INT_BUF_OVER := $17
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CH376_USB_INT_USB_READY := $18
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CH376_USB_INT_DISK_READ := $1D
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CH376_USB_INT_DISK_WRITE := $1E
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CH376_USB_INT_DISK_ERR := $1F
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CH376_ERR_OPEN_DIR := $41
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CH376_ERR_MISS_FILE := $42
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CH376_ERR_FOUND_NAME := $43
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CH376_ERR_DISK_DISCON := $82
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CH376_ERR_LARGE_SECTOR := $84
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CH376_ERR_TYPE_ERROR := $92
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CH376_ERR_BPB_ERROR := $A1
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CH376_ERR_DISK_FULL := $B1
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CH376_ERR_FDT_OVER := $B2
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CH376_ERR_FILE_CLOSE := $B4
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CH376_GET_IC_VER := $01
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CH376_SET_BAUDRATE := $02
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CH376_GET_ENTER_SLEEP := $03
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CH376_RESET_ALL := $05
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CH376_CHECK_EXIST := $06
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CH376_GET_FILE_SIZE := $0C
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CH376_SET_USB_MODE := $15
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CH376_GET_STATUS := $22
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CH376_RD_USB_DATA0 := $27
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CH376_CMD_WR_REQ_DATA := $2d
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CH376_SET_FILE_NAME := $2F
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CH376_DISK_CONNECT := $30 ; check the disk connection status
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CH376_DISK_MOUNT := $31
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CH376_FILE_OPEN := $32
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CH376_FILE_ENUM_GO := $33
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CH376_FILE_CREATE := $34
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CH376_FILE_CLOSE := $36
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CH376_BYTE_LOCATE := $39
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CH376_BYTE_READ := $3A
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CH376_BYTE_RD_GO := $3B
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CH376_BYTE_WRITE := $3C
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CH376_BYTE_WR_GO := $3D
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CH376_DISK_CAPACITY := $3E
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CH376_DISK_RD_GO := $55
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.proc _ch376_file_close
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lda #CH376_FILE_CLOSE
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sta CH376_COMMAND
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jsr _ch376_wait_response
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rts
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.endproc
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.proc _ch376_seek_file
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ldx #CH376_BYTE_LOCATE
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stx CH376_COMMAND
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sta CH376_DATA
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sty CH376_DATA
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lda #$00 ; Don't manage 32 bits length
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sta CH376_DATA
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sta CH376_DATA
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jsr _ch376_wait_response
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rts
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.endproc
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; void ch376_set_file_name(char *filename)
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.proc _ch376_set_file_name
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sta ptr1
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stx ptr1+1
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lda #CH376_SET_FILE_NAME ;$2f
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sta CH376_COMMAND
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ldy #0
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loop:
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lda (ptr1),y ; replace by bufnom
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beq end ; we reached 0 value
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;BRK_TELEMON XMINMA
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sta CH376_DATA
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iny
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cpy #13 ; because we don't manage longfilename shortname =11
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bne loop
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end:
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sta CH376_DATA
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rts
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.endproc
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; char _ch376_file_open();
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.proc _ch376_file_open
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lda #CH376_FILE_OPEN ; $32
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sta CH376_COMMAND
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jsr _ch376_wait_response
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; ldx #0
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rts
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.endproc
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;CMD_GET_FILE_SIZE
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.proc _ch376_get_file_size
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lda #CH376_GET_FILE_SIZE
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sta CH376_COMMAND
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lda #$68
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sta CH376_DATA
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; store file leng
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lda CH376_DATA
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sta tmp1
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lda CH376_DATA
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sta tmp1+1
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lda CH376_DATA
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sta tmp2
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lda CH376_DATA
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sta tmp2+1
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rts
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.endproc
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; void ch376_reset();
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.proc _ch376_reset
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lda #CH376_RESET_ALL ; 5
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sta CH376_COMMAND
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; waiting
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ldy #0
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ldx #0
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loop:
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nop
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inx
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bne loop
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iny
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bne loop
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rts
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.endproc
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; char ch376_check_exist(char value);
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.proc _ch376_check_exist
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sta tmp1
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lda #CH376_CHECK_EXIST ;
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sta CH376_COMMAND
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lda tmp1
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sta CH376_DATA
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lda CH376_DATA
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rts
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.endproc
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; char ch376_ic_get_version(void)
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.proc _ch376_ic_get_version
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lda #CH376_GET_IC_VER
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sta CH376_COMMAND
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ldx #0
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lda CH376_DATA
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rts
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.endproc
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; void ch376_set_usb_mode(char mode)
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.proc _ch376_set_usb_mode
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; CH376_SET_USB_MODE_CODE_USB_HOST_SOF_PACKAGE_AUTOMATICALLY
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ldx #CH376_SET_USB_MODE ; $15
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stx CH376_COMMAND
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sta CH376_DATA
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rts
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.endproc
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; void ch376_set_bytes_write(int value);
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.proc _ch376_set_bytes_write
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ldy #CH376_BYTE_WRITE
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sty CH376_COMMAND
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sta CH376_DATA
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stx CH376_DATA
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lda #0
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sta CH376_DATA
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sta CH376_DATA
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jsr _ch376_wait_response
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rts
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.endproc
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.proc _ch376_set_bytes_read
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ldy #CH376_BYTE_READ
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sty CH376_COMMAND
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; Storing 32 bits value
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sta CH376_DATA
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stx CH376_DATA
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lda #0
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sta CH376_DATA
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sta CH376_DATA
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jsr _ch376_wait_response
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rts
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.endproc
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; char ch376_disk_mount();
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.proc _ch376_disk_mount
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lda #CH376_DISK_MOUNT ; $31
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sta CH376_COMMAND
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jsr _ch376_wait_response
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; if we read data value, we have then length of the volume name
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ldx #0
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rts
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.endproc
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; char ch376_wait_response();
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.proc _ch376_wait_response
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; 1 return 1 if usb controller does not respond
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; else A contains answer of the controller
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ldy #$ff
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loop3:
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ldx #$ff ; don't decrease this counter. Because ch376 won't respond if there is a lower value
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loop:
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lda CH376_COMMAND
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and #%10000000
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cmp #128
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bne no_error
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dex
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bne loop
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dey
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bne loop3
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; error is here
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rts
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no_error:
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lda #CH376_GET_STATUS
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sta CH376_COMMAND
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lda CH376_DATA
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rts
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.endproc
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.proc _ch376_fread
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; use ptr1 to count bytes
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jsr _ch376_set_bytes_read
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continue:
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cmp #CH376_USB_INT_DISK_READ ; something to read
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beq we_read
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cmp #CH376_USB_INT_SUCCESS ; finished
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beq finished
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; TODO in A : $ff X: $ff
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lda #0
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tax
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rts
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we_read:
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lda #CH376_RD_USB_DATA0
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sta CH376_COMMAND
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lda CH376_DATA ; contains length read
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sta tmp2; Number of bytes to read
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ldy #0
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loop:
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lda CH376_DATA ; read the data
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sta (PTR_READ_DEST),y
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iny
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cpy tmp2
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bne loop
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tya
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clc
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adc PTR_READ_DEST
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bcc next
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inc PTR_READ_DEST+1
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next:
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sta PTR_READ_DEST
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lda #CH376_BYTE_RD_GO
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sta CH376_COMMAND
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jsr _ch376_wait_response
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jmp continue
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finished:
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; TODO return bytes read
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lda tmp1
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ldx tmp1+1
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rts
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.endproc
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; void _ch376_fwrite(void *ptr,int number)
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.proc _ch376_fwrite
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; use ptr1 to count bytes
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sta ptr2
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stx ptr2+1
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jsr popax
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sta PTR_READ_DEST
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stx PTR_READ_DEST+1
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lda ptr2
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ldx ptr2+1
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jsr _ch376_set_bytes_write
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;cmp #CH376_USB_INT_SUCCESS
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;beq finished
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;jsr popax
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;jsr _ch376_wait_response
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continue:
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cmp #CH376_USB_INT_DISK_WRITE ; something to read
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beq we_read
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cmp #CH376_USB_INT_SUCCESS ; finished
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beq finished
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; TODO in A : $ff X: $ff
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lda #0
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tax
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rts
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we_read:
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lda #CH376_CMD_WR_REQ_DATA
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sta CH376_COMMAND
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lda CH376_DATA ; contains length read
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sta tmp2; Number of bytes to read
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;ldy #0
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loop:
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;lda (PTR_READ_DEST),y
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lda #65
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sta CH376_DATA ; read the data
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dec tmp2
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bne loop
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; dec ptr2
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;bne continue3
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;dec ptr2+1
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;bne continue3
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;continue3
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; lda ptr2+1
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;bne continue2
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;lda ptr2
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;beq finished
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;continue2
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; iny
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; cpy tmp2
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; bne loop
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; tya
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; clc
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; adc PTR_READ_DEST
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; bcc next
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; inc PTR_READ_DEST+1
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;next:
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; sta PTR_READ_DEST
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lda #CH376_BYTE_WR_GO
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sta CH376_COMMAND
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jsr _ch376_wait_response
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jmp continue
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finished:
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; TODO return bytes read
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lda tmp1
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;lda #<8000
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ldx tmp1+1
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;ldx #>8000
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rts
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.endproc
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.proc _ch376_file_create
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lda #CH376_FILE_CREATE
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sta CH376_COMMAND
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jsr _ch376_wait_response
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rts
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.endproc |