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CBDOS can now return floppy header

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This commit is contained in:
FeralChild64 committed 2021-03-04 18:22:36 +01:00
1 parent 70887cc53c
commit 52b2686f0e
6 files changed
+144 -93
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src/dos_m65/,aliases_dos.s
+42 -40
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@@ -109,14 +109,7 @@
!addr FD_STATUS_IDX = $806E ; - floppy
!addr RD_STATUS_IDX = $806F ; - ram disk
!addr DMAJOB_LIST = $8070 ; 15 bytes, a general purpose DMA list
!addr DMAJOB_SRC_MB = DMAJOB_LIST+2
!addr DMAJOB_DST_MB = DMAJOB_LIST+4
!addr DMAJOB_SIZE = DMAJOB_LIST+7 ; keep $0200 here
!addr DMAJOB_SRC_ADDR = DMAJOB_LIST+9
!addr DMAJOB_DST_ADDR = DMAJOB_LIST+12
!addr SD_DESC = $807F ; current file descriptor
!addr SD_DESC = $8070 ; current file descriptor
@@ -129,54 +122,63 @@
; BAM cache for floppy drives; 2 KB (4 blocks) each, to cover up to ED floppies - XXX implementation to be written
!addr FD_BAM_CACHE_0 = $8A00 ; - floppy drive 0
!addr FD_BAM_CACHE_1 = $8E00 ; - floppy drive 1
!addr FD_BAM_CACHE_0 = $8200 ; - floppy drive 0
!addr FD_BAM_CACHE_1 = $8600 ; - floppy drive 1
; General purpose buffers, 512 bytes each, each starts at page start - XXX dynamic alllocation to be written
!addr SHARED_BUF_0 = $9200 ; XXX temporarily hardcoded for usage by SD card
!addr SHARED_BUF_1 = $9400 ; XXX temporarily hardcoded for usage by floppy
!addr SHARED_BUF_2 = $9600
!addr SHARED_BUF_3 = $9800
!addr SHARED_BUF_4 = $9A00
!addr SHARED_BUF_5 = $9C00
!addr SHARED_BUF_6 = $9E00
!addr SHARED_BUF_7 = $A000
!addr SHARED_BUF_8 = $A200
!addr SHARED_BUF_9 = $A400
!addr SHARED_BUF_A = $A600
!addr SHARED_BUF_B = $A800
!addr SHARED_BUF_C = $AA00
!addr SHARED_BUF_D = $AC00
!addr SHARED_BUF_E = $AE00
!addr SHARED_BUF_F = $B000
!addr SHARED_BUF_0 = $8A00 ; XXX temporarily hardcoded for usage by SD card
!addr SHARED_BUF_1 = $8C00 ; XXX temporarily hardcoded for usage by floppy
!addr SHARED_BUF_2 = $8E00
!addr SHARED_BUF_3 = $9000
!addr SHARED_BUF_4 = $9200
!addr SHARED_BUF_5 = $9400
!addr SHARED_BUF_6 = $9600
!addr SHARED_BUF_7 = $9800
!addr SHARED_BUF_8 = $9A00
!addr SHARED_BUF_9 = $9C00
!addr SHARED_BUF_A = $9E00
!addr SHARED_BUF_B = $A000
!addr SHARED_BUF_C = $A200
!addr SHARED_BUF_D = $A400
!addr SHARED_BUF_E = $A600
!addr SHARED_BUF_F = $A800
; Memory shadow, needed for SD card support
!addr SD_MEMSHADOW_BUF = $8200 ; 256 byte buffer for preserving original memory content
!addr SD_MEMSHADOW_BUF = $AA00 ; 256 byte buffer for preserving original memory content
; Command/filename buffers, 128 bytes each - XXX extend to 256 bytes (change implementation)
!addr SD_CMDFN_BUF = $B300 ; - SD card
!addr FD_CMDFN_BUF = $B400 ; - floppy
!addr RD_CMDFN_BUF = $B500 ; - ram disk
!addr SD_CMDFN_BUF = $AB00 ; - SD card
!addr FD_CMDFN_BUF = $AC00 ; - floppy
!addr RD_CMDFN_BUF = $AD00 ; - ram disk
; Directory entry buffers, in BASIC format, $30 bytes each
!addr XX_DIRENT_BUF = $B600
!addr SD_DIRENT_BUF = $B600 ; - SD card
!addr FD_DIRENT_BUF = $B630 ; - floppy
!addr RD_DIRENT_BUF = $B660 ; - ram disk
!addr XX_DIRENT_BUF = $AE00
!addr SD_DIRENT_BUF = $AE00 ; - SD card
!addr FD_DIRENT_BUF = $AE30 ; - floppy
!addr RD_DIRENT_BUF = $AE60 ; - ram disk
; Status buffers, content terminated by 0, $30 bytes each
!addr XX_STATUS_BUF = $B690
!addr SD_STATUS_BUF = $B690 ; - SD card
!addr FD_STATUS_BUF = $B6C0 ; - floppy
!addr RD_STATUS_BUF = $B6F0 ; - ram disk
!addr XX_STATUS_BUF = $AE90
!addr SD_STATUS_BUF = $AE90 ; - SD card
!addr FD_STATUS_BUF = $AEC0 ; - floppy
!addr RD_STATUS_BUF = $AEF0 ; - ram disk
; Common DMA list
!addr DMAJOB_LIST = $AF20 ; 15 bytes, a general purpose DMA list
!addr DMAJOB_SRC_MB = DMAJOB_LIST+2
!addr DMAJOB_DST_MB = DMAJOB_LIST+4
!addr DMAJOB_SIZE = DMAJOB_LIST+7 ; keep $0200 here
!addr DMAJOB_SRC_ADDR = DMAJOB_LIST+9
!addr DMAJOB_DST_ADDR = DMAJOB_LIST+12
;
; Reserved 18 KB for floppy track buffers + some area for track metadata
; Reserved 20 KB for floppy track buffers + some area for track metadata
;
!addr XX_REMAINING = $B720
!addr XX_REMAINING = $AF2F