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Use structs

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git-svn-id: svn://svn.cc65.org/cc65/trunk@2774 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz
2003-12-16 21:08:24 +00:00
parent 5010b8be45
commit 5e3a3eaed1
1 changed files with 30 additions and 22 deletions
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52
asminc/em-kernel.inc
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@@ -34,30 +34,38 @@
;------------------------------------------------------------------------------ ;------------------------------------------------------------------------------
; Driver header stuff ; The driver header
EMD_HDR_ID = 0 ; 0x65, 0x6d, 0x64 ("emd") .struct EMD_HDR
EMD_HDR_VERSION = 3 ; Interface version ID .byte 3 ; Contains 0x65, 0x6d, 0x64 ("emd")
VERSION .byte 1 ; Interface version
EMD_HDR_JUMPTAB = 4 JUMPTAB .struct
EMD_HDR_INSTALL = EMD_HDR_JUMPTAB+0 ; INSTALL routine INSTALL .word ; INSTALL routine
EMD_HDR_UNINSTALL = EMD_HDR_JUMPTAB+2 ; UNINSTALL routine UNINSTALL .word ; UNINSTALL routine
EMD_HDR_PAGECOUNT = EMD_HDR_JUMPTAB+4 ; PAGECOUNT routine PAGECOUNT .word ; PAGECOUNT routine
EMD_HDR_MAP = EMD_HDR_JUMPTAB+6 ; MAP routine MAP .word ; MAP routine
EMD_HDR_USE = EMD_HDR_JUMPTAB+8 ; USE routine USE .word ; USE routine
EMD_HDR_MAPCLEAN = EMD_HDR_JUMPTAB+10 ; MAPCLEAN routine MAPCLEAN .word ; MAPCLEAN routine
EMD_HDR_COPYFROM = EMD_HDR_JUMPTAB+12 ; COPYFROM routine COPYFROM .word ; COPYFROM routine
EMD_HDR_COPYTO = EMD_HDR_JUMPTAB+14 ; COPYTO routine COPYTO .word ; COPYTO routine
.endstruct
EMD_HDR_JUMPCOUNT = 8 ; Number of jump vectors .endstruct
;------------------------------------------------------------------------------ ;------------------------------------------------------------------------------
; Offsets into the em_copy structure ; The AMD API version, stored in EMD_HDR::VERSION
EM_COPY_BUF = 0 EMD_API_VERSION = $00
EM_COPY_OFFS = 2
EM_COPY_PAGE = 3 ;------------------------------------------------------------------------------
EM_COPY_COUNT = 5 ; The asm equivalent to the C em_copy structure
.struct EM_COPY
BUF .word ; Memory buffer to copy from or to
OFFS .byte ; Offset into page
PAGE .word ; Starting page to copy from or to
COUNT .word ; Number of bytes to copy
UNUSED .byte ; Make the size 8 bytes
.endstruct
;------------------------------------------------------------------------------ ;------------------------------------------------------------------------------
; Variables ; Variables
@@ -84,7 +92,7 @@ EM_COPY_COUNT = 5
.global _em_uninstall .global _em_uninstall
.global _em_pagecount .global _em_pagecount
.global _em_map .global _em_map
.global _em_use .global _em_use
.global _em_commit .global _em_commit
.global _em_copyfrom .global _em_copyfrom
.global _em_copyto .global _em_copyto