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Added _stroserror
git-svn-id: svn://svn.cc65.org/cc65/trunk@1365 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz
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commit
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@ -47,6 +47,7 @@ S_OBJS = c_acptr.o \
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gotox.o \
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gotoxy.o \
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gotoy.o \
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oserrlist.o \
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oserror.o \
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revers.o \
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where.o
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85
libsrc/cbm/oserrlist.s
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85
libsrc/cbm/oserrlist.s
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@ -0,0 +1,85 @@
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;
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; Ullrich von Bassewitz, 18.07.2002
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;
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; Defines the platform specific error list.
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;
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; The table is built as a list of entries
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;
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; .byte entrylen
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; .byte errorcode
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; .asciiz errormsg
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;
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; and terminated by an entry with length zero that is returned if the
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; error code could not be found.
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;
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.export __sys_oserrlist
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;----------------------------------------------------------------------------
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; Macros used to generate the list (may get moved to an include file?)
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; Regular entry
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.macro sys_oserr_entry code, msg
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.local Start, End
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Start: .byte End - Start
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.byte code
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.asciiz msg
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End:
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.endmacro
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; Sentinel entry
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.macro sys_oserr_sentinel msg
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.byte 0 ; Length is always zero
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.byte 0 ; Code is unused
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.asciiz msg
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.endmacro
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;----------------------------------------------------------------------------
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; The error message table
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.rodata
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__sys_oserrlist:
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sys_oserr_entry 1, "Too many open files"
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sys_oserr_entry 2, "File is open"
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sys_oserr_entry 3, "File not open"
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sys_oserr_entry 4, "File not found"
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sys_oserr_entry 5, "Device not present"
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sys_oserr_entry 6, "File not input"
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sys_oserr_entry 7, "File not output"
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sys_oserr_entry 8, "Filename missing"
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sys_oserr_entry 9, "Ilegal device"
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sys_oserr_entry 20, "Read error"
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sys_oserr_entry 21, "Read error"
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sys_oserr_entry 22, "Read error"
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sys_oserr_entry 23, "Read error"
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sys_oserr_entry 24, "Read error"
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sys_oserr_entry 25, "Write error"
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sys_oserr_entry 26, "Write protect on"
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sys_oserr_entry 27, "Read error"
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sys_oserr_entry 28, "Write error"
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sys_oserr_entry 29, "Disk ID mismatch"
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sys_oserr_entry 30, "Syntax error"
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sys_oserr_entry 31, "Syntax error"
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sys_oserr_entry 32, "Syntax error"
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sys_oserr_entry 33, "Syntax error (invalid file name)"
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sys_oserr_entry 34, "Syntax error (no file given)"
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sys_oserr_entry 39, "Syntax error"
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sys_oserr_entry 50, "Record not present"
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sys_oserr_entry 51, "Overflow in record"
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sys_oserr_entry 52, "File too large"
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sys_oserr_entry 60, "Write file open"
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sys_oserr_entry 61, "File not open"
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sys_oserr_entry 62, "File not found"
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sys_oserr_entry 63, "File exists"
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sys_oserr_entry 64, "File type mismatch"
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sys_oserr_entry 65, "No block"
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sys_oserr_entry 66, "Illegal track or sector"
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sys_oserr_entry 67, "Illegal system track or sector"
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sys_oserr_entry 70, "No channel"
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sys_oserr_entry 71, "Directory error"
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sys_oserr_entry 72, "Disk full"
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sys_oserr_entry 73, "DOS version mismatch"
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sys_oserr_sentinel "Unknown error"
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@ -108,6 +108,7 @@ S_OBJS = _fdesc.o \
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strncat.o \
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strncmp.o \
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strncpy.o \
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stroserr.o \
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strpbrk.o \
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strrchr.o \
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strspn.o \
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61
libsrc/common/stroserr.s
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61
libsrc/common/stroserr.s
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;
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; Ullrich von Bassewitz, 17.07.2002
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;
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; const char* __fastcall__ _stroserror (unsigned char errcode);
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; /* Map an operating system error number to an error message. */
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;
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.export __stroserror
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.import __sys_oserrlist
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.importzp ptr1, tmp1
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.macpack generic
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; The table is built as a list of entries
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;
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; .byte entrylen
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; .byte errorcode
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; .asciiz errormsg
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;
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; and terminated by an entry with length zero that is returned if the
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; error code could not be found.
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__stroserror:
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sta tmp1 ; Save the error code
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ldy #<__sys_oserrlist
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sty ptr1
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ldy #>__sys_oserrlist
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sty ptr1+1 ; Setup pointer to message table
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@L1: ldy #0
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lda (ptr1),y ; Get the length
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beq Done ; Bail out if end of list reached
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iny
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lda (ptr1),y ; Compare the error code
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cmp tmp1
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beq Done ; Jump if found
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; Not found, move pointer to next entry
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dey
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clc
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lda ptr1
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adc (ptr1),y
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sta ptr1
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bcc @L1
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inc ptr1+1
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bcs @L1 ; Branch always
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; We've found the code or reached the end of the list
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Done: ldx ptr1+1
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lda ptr1
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add #2 ; Add a total of #2
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bcc @L1
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inx ; Bump high byte
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@L1: rts
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