Format police.
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mycroft
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6e12a4d7e4
commit
5c8e7d1afc
@ -60,11 +60,9 @@ CR0_PE = 0x1
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.text
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/*
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#
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# real_to_prot()
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# transfer from real mode to protected mode.
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*/
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* real_to_prot()
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* transfer from real mode to protected mode.
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*/
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ENTRY(real_to_prot)
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# guarantee that interrupt is disabled when in prot mode
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cli
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@ -97,12 +95,9 @@ xprot:
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ret
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/*
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#
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# prot_to_real()
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# transfer from protected mode to real mode
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#
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*/
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* prot_to_real()
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* transfer from protected mode to real mode
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*/
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ENTRY(prot_to_real)
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# set up a dummy stack frame for the second seg change.
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@ -139,19 +134,16 @@ xreal:
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ret
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/*
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#
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# startprog(phyaddr)
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# start the program on protected mode where phyaddr is the entry point
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#
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*/
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* startprog(phyaddr)
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* start the program on protected mode where phyaddr is the entry point
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*/
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ENTRY(startprog)
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pushl %ebp
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movl %esp, %ebp
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# get things we need into registers
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movl 0x8(%ebp), %ecx # entry offset
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movl 0x0c(%ebp), %eax # &argv
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movl 0xc(%ebp), %eax # &argv
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# make a new stack at 0:0xa0000 (big segs)
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movl $0x10, %ebx
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@ -169,7 +161,7 @@ ENTRY(startprog)
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pushl $0 # dummy 'return' address
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# push on our entry address
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movl $0x08, %ebx # segment
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movl $0x8, %ebx # segment
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pushl %ebx
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pushl %ecx
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@ -180,12 +172,11 @@ ENTRY(startprog)
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# convert the PC (and code seg)
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lret
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/*
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#
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# pbzero( dst, cnt)
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# where src is a virtual address and dst is a physical address
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*/
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/*
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* pbzero(dst, cnt)
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* where dst is a virtual address and cnt is the length
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*/
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ENTRY(pbzero)
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pushl %ebp
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movl %esp, %ebp
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@ -201,7 +192,7 @@ ENTRY(pbzero)
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movl 0x8(%ebp), %edi # destination
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movl 0xc(%ebp), %ecx # count
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movl $0x0, %eax # value
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xorl %eax, %eax # value
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rep
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stosb
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@ -212,13 +203,11 @@ ENTRY(pbzero)
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popl %ebp
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ret
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/*
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#
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# pcpy(src, dst, cnt)
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# where src is a virtual address and dst is a physical address
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#
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*/
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/*
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* pcpy(src, dst, cnt)
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* where src is a virtual address and dst is a physical address
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*/
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ENTRY(pcpy)
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pushl %ebp
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movl %esp, %ebp
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@ -247,3 +236,39 @@ ENTRY(pcpy)
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popl %ebp
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ret
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#ifdef CHECKSUM
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/*
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* cksum(src, cnt)
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* where src is a virtual address and cnt is the length
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*/
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ENTRY(cksum)
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pushl %ebp
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movl %esp, %ebp
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pushl %es
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pushl %edi
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pushl %ecx
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cld
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# set %es to point at the flat segment
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movl $0x10, %eax
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movl %ax, %es
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movl 0x8(%ebp), %edi # destination
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movl 0xc(%ebp), %ecx # count
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shrl $2, %ecx
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xorl %edx, %edx # value
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1: es
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lodsl
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xorl %eax, %edx
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loop 1b
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movl %edx, %eax
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popl %ecx
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popl %edi
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popl %es
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popl %ebp
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#endif
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@ -25,7 +25,7 @@
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* any improvements or extensions that they make and grant Carnegie Mellon
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* the rights to redistribute these changes.
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*
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* $Id: boot.c,v 1.19 1994/05/01 06:46:27 cgd Exp $
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* $Id: boot.c,v 1.20 1994/06/13 19:32:07 mycroft Exp $
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*/
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/*
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@ -58,6 +58,9 @@ WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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struct exec head;
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int argv[9];
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#ifdef CHECKSUM
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int cflag;
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#endif
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char *name;
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char *names[] = {
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"/netbsd", "/onetbsd", "/netbsd.old",
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@ -139,6 +142,10 @@ loadprog(howto)
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/********************************************************/
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printf("%d", head.a_text);
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xread(addr, head.a_text);
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#ifdef CHECKSUM
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if (cflag)
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printf("(%x)", cksum(addr, head.a_text));
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#endif
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addr += head.a_text;
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/********************************************************/
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@ -154,6 +161,10 @@ loadprog(howto)
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printf("+%d", head.a_data);
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xread(addr, head.a_data);
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#ifdef CHECKSUM
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if (cflag)
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printf("(%x)", cksum(addr, head.a_data));
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#endif
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addr += head.a_data;
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/********************************************************/
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@ -176,6 +187,10 @@ loadprog(howto)
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/********************************************************/
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printf("+[%d", head.a_syms);
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xread(addr, head.a_syms);
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#ifdef CHECKSUM
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if (cflag)
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printf("(%x)", cksum(addr, head.a_syms));
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#endif
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addr += head.a_syms;
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/********************************************************/
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@ -189,6 +204,10 @@ loadprog(howto)
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addr += sizeof(int);
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printf("+%d", i);
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xread(addr, i);
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#ifdef CHECKSUM
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if (cflag)
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printf("(%x)", cksum(addr, i));
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#endif
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addr += i;
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}
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@ -203,6 +222,11 @@ loadprog(howto)
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/********************************************************/
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printf("=0x%x\n", addr);
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#ifdef CHECKSUM
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if (cflag)
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return;
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#endif
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/*
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* We now pass the various bootstrap parameters to the loaded
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* image via the argument list
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@ -243,6 +267,9 @@ getbootdev(howto)
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char c, *ptr = namebuf;
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printf("Boot: [[[%s(%d,%c)]%s][-adrs]] :- ",
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devs[maj], unit, 'a'+part, name);
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#ifdef CHECKSUM
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cflag = 0;
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#endif
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if (gets(namebuf)) {
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while (c = *ptr) {
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while (c == ' ')
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@ -255,6 +282,10 @@ getbootdev(howto)
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*howto |= RB_ASKNAME;
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else if (c == 'b')
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*howto |= RB_HALT;
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#ifdef CHECKSUM
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else if (c == 'c')
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cflag = 1;
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#endif
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else if (c == 'd')
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*howto |= RB_KDB;
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else if (c == 'r')
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