From: keie Date: Mon, 7 Jan 1985 13:57:25 +0000 (+0000) Subject: *** empty log message *** X-Git-Tag: release-5-5~5807 X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=112211eb3b2b6907772f3080c52381e456e11526;p=ack.git *** empty log message *** --- diff --git a/mach/i86/libsys/head_em.s b/mach/i86/libsys/head_em.s new file mode 100644 index 000000000..fd45fde90 --- /dev/null +++ b/mach/i86/libsys/head_em.s @@ -0,0 +1,75 @@ +.define begtext,begdata,begbss +.define hol0,.reghp,.limhp,.trppc,.ignmask +.define ERANGE,ESET,EHEAP,ECASE,EILLINS + +ERANGE = 1 +ESET = 2 +EIDIVZ = 6 +EHEAP = 17 +EILLINS = 18 +EODDZ = 19 +ECASE = 20 + +base = 0x01C0 +topmem = 0xFFF0 + + .org topmem-16 +.extern __n_line +maxmem: +__n_line: + .space 16 + .errnz __n_line-0xFFE0 + + .base base + + .text +begtext: + cld + xor ax,ax + mov ss,ax + mov ds,ax + mov es,ax + mov (2),cs + mov (0),.diverr + mov sp,maxmem + mov di,begbss + mov cx,[[endbss-begbss]/2]&0x7FFF + ! xor ax,ax ! ax still is 0 + rep stos + mov ax,envp + push ax + mov ax,argv + push ax + mov ax,1 + push ax + call _m_a_i_n + call .stop +.diverr: + push ax + mov ax,EIDIVZ + call .error + pop ax + iret + + .data +begdata: +hol0: + .word 0,0 + .word 0,0 +argv: + .word 3f +envp: + .word 0 +3: + .asciz "PROGRAM" +.reghp: + .word endbss +.limhp: + .word endbss +.ignmask: + .word 0 +.trppc: + .word 0 + + .bss +begbss: