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Digital-Research-Source-Code/CPM OPERATING SYSTEMS/CPM 86/CONCURRENT/CCPM-86 3.1 SOURCE/D2/CMDH.DEF
Sepp J Morris 31738079c4 Upload
Digital Research
2020-11-06 18:50:37 +01:00

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;*****************************************************
;*
;* Command Header Format and Load Fixup Records
;*
;*****************************************************
;group descriptor format
ch_form equ byte ptr 0
ch_length equ word ptr (ch_form + byte)
ch_base equ word ptr (ch_length + word)
ch_min equ word ptr (ch_base + word)
ch_max equ word ptr (ch_min + word)
chlen equ ch_max + word
ch_entmax equ 8 ;max number of group
;descriptors
ch_lbyte equ byte ptr 07fh ;MSB bit in CH_LBYTE
ch_fixrec equ word ptr 07dh ;signals fixup records
;start at record number
;in CH_FIXREC
fix_grp equ byte ptr 0 ;format of fixup record
fix_para equ word ptr fix_grp + byte
fix_offs equ byte ptr fix_para + word
fixlen equ fix_offs + byte
; Flag def's for ch_lbyte
need_fxps equ 080H ;need fixup records
opt_8087 equ 040H ;optional 8087 request
need_8087 equ 020H ;requires 8087
need_rsx equ 010H ;requires rsx load
susp_mode equ 008H ;suspend if background task