diff options
Diffstat (limited to 'src/arch/x86/llshell/llshell.inc')
| -rw-r--r-- | src/arch/x86/llshell/llshell.inc | 901 |
1 files changed, 0 insertions, 901 deletions
diff --git a/src/arch/x86/llshell/llshell.inc b/src/arch/x86/llshell/llshell.inc deleted file mode 100644 index a66ac150b5..0000000000 --- a/src/arch/x86/llshell/llshell.inc +++ /dev/null @@ -1,901 +0,0 @@ - -#define RET_LABEL(label) \ - jmp label##_done - -#define CALL_LABEL(label) \ - jmp label ;\ -label##_done: - -#define CALLSP(func) \ - lea 0f, %esp ; \ - jmp func ; \ -0: - -#define RETSP \ - jmp *%esp - - -#include "console.inc" -#include "pci.inc" -#include "ramtest.inc" - -jmp llshell_out - -// (c) 2004 Bryan Chafy, This program is released under the GPL - -// LLShell, A low level interactive debug shell -// Designed to be an interactive shell that operates with zero -// system resources. For example at initial boot. - -// to use, jump to label "low_level_shell" -// set %esp to the return address for exiting - - -#define UART_BASEADDR $0x3f8 -#define resultreg %esi -#define subroutinereg %edi -#define freqtime $2193 // 1.93 * freq -#define timertime $6000 -.equ sys_IOPL, 110 - -// .data -// .text - -welcome: - .string "\r\n! Low Level Shell (LLShell) (c)2004 Bryan Chafy \r\n\r\n" -prompt: - .string "\r\n!> " -badcmd: - .string "bad command\r\n" -sorry: - .string "sorry, not yet implemented\r\n" -cmds: - .string "\r\nList of commands:\r\n \ -\r\nbeep -- pc speaker beep \ -\r\nrst (or RST) -- reset \ -\r\nout(b,w,l) <val> <port> -- raw out val at port \ -\r\nin(b,w,l) <port> -- show raw port value \ -\r\njmp <address> -- jmp to address (llshell addr is in eax) \ -\r\ncall <address> -- funcion call (assumes a working stack) \ -\r\ncli -- clear interrupts \ -\r\nsti -- enable interrupts \ -\r\npush <value> -- push value onto stack \ -\r\npop -- pop from stack and display \ -\r\nwm(b,w,l) <addr> <val> -- write mem \ -\r\ndm <addr> <lines> -- dump mem \ -\r\nmcp <src> <dst> <size> -- mem copy \ -\r\nmpat <pat> <dst> <size> -- mem pattern \ -\r\nmemt <begin> <end> -- memory test \ -\r\npcir(b,w,l) <loc> -- pci read config \ -\r\npciw(b,w,l) <loc> <val> -- pci write config \ -\r\ndl <addr> <size> -- memory download (display xor cheksum at completion) \ -\r\ncram <addr> <size> -- enable cache to be ram (experimental) \ -\r\nbaud <val> -- change baudrate (not yet implemented) \ -\r\nexit -- exit shell \ -\r\nAll values in hex (0x prefixing ok) \ -\r\n" - -cr: - .string "\r\n" -spaces: - .string " " - -// .globl _start -//ASSUME CS:@CODE, DS:@DATA - -// _start: - -// call ioperms - -low_level_shell: - -mov $preamble,subroutinereg -jmp beep -preamble: -mov $welcome,resultreg -mov $readcommand,subroutinereg -jmp displaystring - -readcommand: -mov $prompt,resultreg -mov $rcmd,subroutinereg -jmp displaystring - -rcmd: -mov $readcommand,subroutinereg -movl $0x0, resultreg - -readchar: -mov UART_BASEADDR+5,%dx -in %dx, %al -and $0x9f,%al -test $0x01,%al -jz readchar -mov UART_BASEADDR,%dx -in %dx,%al //char in al -xchg %al,%ah - -send_char: -mov UART_BASEADDR+5,%dx -us_wait: -in %dx,%al -test $0x20,%al -jz us_wait -mov UART_BASEADDR,%dx -xchg %al,%ah -out %al,%dx // output char - -cmp $0x0D,%al //CR -jnz eval_char -mov $0x0A,%ah -jmp send_char - -eval_char: -cmp $0x20,%al //space -jz cmdtable -cmp $0x0A,%al //CR -jz cmdtable -cmp $0x08,%al //BS -jnz additup -//subit: -shr $0x8,resultreg -jmp readchar -additup: -shl $0x8,resultreg -and $0xff,%eax -add %eax,resultreg -jmp readchar - -cmdtable: -mov resultreg,%eax -cmp $0,%eax -jz readcommand -cmp $0x74657374,%eax -jz dotest -cmp $0x68656c70,%eax -jz dohelp -cmp $0x0000003f,%eax -jz dohelp -cmp $0x6f757462,%eax -jz dooutb -cmp $0x6f757477,%eax -jz dooutw -cmp $0x6f75746c,%eax -jz dooutd -cmp $0x00696e62,%eax -jz doinb -cmp $0x00696e77,%eax -jz doinw -cmp $0x00696e6c,%eax -jz doind -cmp $0x63697262,%eax -jz pcirb -cmp $0x63697277,%eax -jz pcirw -cmp $0x6369726c,%eax -jz pcirl -cmp $0x63697762,%eax -jz pciwb -cmp $0x63697777,%eax -jz pciww -cmp $0x6369776c,%eax -jz pciwl -cmp $0x00776d62,%eax -jz wmemb -cmp $0x00776d77,%eax -jz wmemw -cmp $0x00776d6c,%eax -jz wmeml -cmp $0x0000646d,%eax -jz dodmem -cmp $0x6d656d74,%eax -jz memt // mem test -cmp $0x00727374,%eax -jz rst // reset -cmp $0x00525354,%eax -jz RST -cmp $0x62656570,%eax -jz beep -cmp $0x0000646c,%eax -jz dodl // download to mem <loc> <size> -cmp $0x006a6d70,%eax -jz jmpto // jump to location (eax holds return addr) -cmp $0x62617564,%eax -jz baud // change baudrate -cmp $0x00696e74,%eax -jz doint // trigger an interrupt -cmp $0x63616c6c,%eax -jz callto // call assumes memory -cmp $0x70757368,%eax -jz dopush // assumes mem -cmp $0x00706f70,%eax -jz dopop // assumes mem -cmp $0x6372616d,%eax -jz cram // cache ram trick <location> <size> -cmp $0x006d6370,%eax -jz mcp // mem copy <src> <dst> <size> -cmp $0x6d706174,%eax -jz dopattern -cmp $0x00636c69,%eax -jz docli -cmp $0x00737469,%eax -jz dosti -cmp $0x65786974,%eax -jz doexit -mov $badcmd,resultreg -mov $readcommand,subroutinereg -jmp displaystring - - -readnibbles: -movl $0x0, resultreg -readit: -mov UART_BASEADDR+5,%dx -in %dx, %al -and $0x9f,%al -test $0x1,%al -jz readit -mov UART_BASEADDR,%dx -in %dx,%al -xchg %al,%ah - -sendchar: -mov UART_BASEADDR+5,%dx -us_waitit: -in %dx,%al -test $0x20,%al -jz us_waitit -mov UART_BASEADDR,%dx -xchg %al,%ah -out %al,%dx // output char - -cmp $0x78,%al -jz readit -cmp $0x0D,%al //CR -jnz evalchar -mov $0x0A,%ah -jmp sendchar - -evalchar: -cmp $0x20,%al //space -jz gosub -cmp $0x0A,%al //CR -jz gosub -cmp $0x08,%al //BS -jnz processchar -//subit: -shr $0x04,resultreg -jmp readit -processchar: -cmp $0x3A,%al -jl subnum -cmp $0x47,%al -jl subcaps -//sublc: -sub $0x57,%al -jmp additupn -subcaps: -sub $0x37,%al -jmp additupn -subnum: -sub $0x30,%al -additupn: -shl $0x04,resultreg -and $0xf,%eax -add %eax,resultreg -jmp readit - -gosub: -jmp *subroutinereg - -//intersubcall -// eax,edx,esi,edi - -// ebx,ecx,ebp,esp(?) -// ds,es,fs,gs - -dotest: -mov $ramtest,resultreg -mov $test1a,subroutinereg -jmp displayhex -test1a: -mov $welcome,resultreg -mov $readcommand,subroutinereg -jmp displayhex - -dodmem: - -movl $dmem1a, subroutinereg -jmp readnibbles -dmem1a: -mov resultreg,%ebx // address -movl $dmem1b, subroutinereg -jmp readnibbles -dmem1b: -mov resultreg,%ecx // length - -dmemloop: -mov %ebx,resultreg -mov $daddr1,subroutinereg -jmp displayhex -daddr1: -mov $spaces,resultreg -mov $startshowm,subroutinereg -jmp displaystring - -startshowm: -mov (%ebx),resultreg -mov $showm1,subroutinereg -jmp displayhexlinear -showm1: -add $0x04,%ebx -mov (%ebx),resultreg -mov $showm2,subroutinereg -jmp displayhexlinear -showm2: -add $0x04,%ebx -mov (%ebx),resultreg -mov $showm3,subroutinereg -jmp displayhexlinear -showm3: -add $0x04,%ebx -mov (%ebx),resultreg -mov $showa0,subroutinereg -jmp displayhexlinear - -showa0: -sub $0xC,%ebx -mov (%ebx),resultreg -mov $showa1,subroutinereg -jmp displayasciilinear -showa1: -add $0x04,%ebx -mov (%ebx),resultreg -mov $showa2,subroutinereg -jmp displayasciilinear -showa2: -add $0x04,%ebx -mov (%ebx),resultreg -mov $showa3,subroutinereg -jmp displayasciilinear -showa3: -add $0x04,%ebx -mov (%ebx),resultreg -mov $doneshow,subroutinereg -jmp displayasciilinear -doneshow: -mov $cr,resultreg -mov $doneshow1,subroutinereg -jmp displaystring -doneshow1: -dec %cx -cmp $0x0,%cx -jz exitdmem -add $0x04,%ebx -jmp dmemloop -exitdmem: -jmp readcommand - -dooutb: -// out val,port -movl $outb1a, subroutinereg -jmp readnibbles -outb1a: -mov resultreg,%ebx -movl $outb1b, subroutinereg -jmp readnibbles -outb1b: -mov resultreg,%edx -mov %ebx,%eax -out %al,%dx -jmp readcommand - -dooutw: -// out val,port -movl $outw1a, subroutinereg -jmp readnibbles -outw1a: -mov resultreg,%ebx -movl $outw1b, subroutinereg -jmp readnibbles -outw1b: -mov resultreg,%edx -mov %ebx,%eax -out %ax,%dx -jmp readcommand - -dooutd: -// out val,port -movl $outd1a, subroutinereg -jmp readnibbles -outd1a: -mov resultreg,%ebx -movl $outd1b, subroutinereg -jmp readnibbles -outd1b: -mov resultreg,%edx -mov %ebx,%eax -out %eax,%dx -jmp readcommand - -wmemb: -movl $wmemba, subroutinereg -jmp readnibbles -wmemba: -mov resultreg,%ebx -movl $wmembb, subroutinereg -jmp readnibbles -wmembb: -mov resultreg,%eax -mov %al,(%ebx) -jmp readcommand - -wmemw: -movl $wmemwa, subroutinereg -jmp readnibbles -wmemwa: -mov resultreg,%ebx -movl $wmemwb, subroutinereg -jmp readnibbles -wmemwb: -mov resultreg,%eax -mov %ax,(%ebx) -jmp readcommand - -wmeml: -movl $wmemla, subroutinereg -jmp readnibbles -wmemla: -mov resultreg,%ebx -movl $wmemlb, subroutinereg -jmp readnibbles -wmemlb: -mov resultreg,%eax -mov %eax,(%ebx) -jmp readcommand - -doinb: -// in port -movl $inb1a, subroutinereg -jmp readnibbles -inb1a: -mov resultreg,%edx -mov $0x0,%eax -in %dx,%al -mov %eax,resultreg -mov $readcommand,subroutinereg -jmp displayhex - -doinw: -// in port -movl $inw1a, subroutinereg -jmp readnibbles -inw1a: -mov resultreg,%edx -mov $0x0,%eax -in %dx,%ax -mov %eax,resultreg -mov $readcommand,subroutinereg -jmp displayhex - -doind: -// in port -movl $ind1a, subroutinereg -jmp readnibbles -ind1a: -mov resultreg,%edx -in %dx,%eax -mov %eax,resultreg -mov $readcommand,subroutinereg -jmp displayhex - -jmpto: -movl $jmp1a, subroutinereg -jmp readnibbles -jmp1a: -mov $readcommand,%eax -jmp *resultreg - -callto: -movl $call1a, subroutinereg -jmp readnibbles -call1a: -mov $readcommand,%eax -call *resultreg -jmp readcommand - -dopush: -movl $push1a, subroutinereg -jmp readnibbles -push1a: -mov resultreg,%eax -push %eax -jmp readcommand - -doint: -movl $int1a, subroutinereg -jmp readnibbles -int1a: -mov resultreg,%eax -// need to lookup int table? -// int %eax -jmp readcommand - -doenter: -//setup stack frame - - -dopop: -movl $readcommand, subroutinereg -pop resultreg -jmp displayhex - -docli: -cli -jmp readcommand - -dosti: -sti -jmp readcommand - - -displaystring: -// resultreg= pointer to string terminated by \0 -dsloop: -movb (resultreg),%ah -cmp $0x0, %ah -jz displaystringexit -mov UART_BASEADDR+5,%dx -us_waits: -in %dx,%al -test $0x20,%al -jz us_waits -mov UART_BASEADDR,%dx -xchg %al,%ah -out %al,%dx // output char -inc resultreg -jmp dsloop -displaystringexit: -jmp *subroutinereg - -displayhexlinear: -mov resultreg,%eax -xchg %al,%ah -rol $0x10,%eax -xchg %al,%ah -mov %eax,resultreg -displayhex: -rol $0x10,%ecx -mov $0x8,%cx -dhloop: -cmp $0xf,%cl -je exitdisplayhex -rol $0x04,resultreg -movl resultreg,%eax -and $0xf,%al -cmp $0xa,%al -jl addnum -//addcaps -add $0x37,%al -jmp outcharhex -addnum: -add $0x30,%al -outcharhex: -xchg %al,%ah -mov UART_BASEADDR+5,%dx -us_waith: -in %dx,%al -test $0x20,%al -jz us_waith -mov UART_BASEADDR,%dx -xchg %al,%ah -out %al,%dx // output char -dec %cx -cmp $0x0,%cx -jne dhloop -mov $0x20,%al -mov $0x10,%cl -jmp outcharhex -exitdisplayhex: -rol $0x10,%ecx -jmp *subroutinereg - -displayasciilinear: -mov resultreg,%eax -xchg %al,%ah -rol $0x10,%eax -xchg %al,%ah -mov %eax,resultreg -displayascii: -rol $0x10,%ecx -mov $0x4,%cx -daloop: -rol $0x08,resultreg -movl resultreg,%eax -cmp $0x7e,%al -jg unprintable -cmp $0x20,%al -jl unprintable -jmp outcharascii -unprintable: -mov $0x2e,%al // dot -outcharascii: -xchg %al,%ah -mov UART_BASEADDR+5,%dx -us_waita: -in %dx,%al -test $0x20,%al -jz us_waita -mov UART_BASEADDR,%dx -xchg %al,%ah -out %al,%dx // output char -dec %cx -cmp $0x0,%cx -jne daloop -rol $0x10,%ecx -jmp *subroutinereg - -rst: -cli -movb $0x0fe,%al -out %al,$0x64 -hlt - -RST: -cli -lidt %cs:0x03fff -int $0x3 -hlt - - -beep: -mov timertime,%eax -rol $0x10,%eax -mov $0xb6,%al -out %al,$0x43 -mov freqtime,%ax -out %al,$0x42 -xchg %al,%ah -out %al,$0x42 - -in $0x61,%al -or $0x03,%al -out %al,$0x61 - -//timer here -timer: -in $0x42,%al -// xchg %al,%ah -in $0x42,%al -// xchg %al,%ah -cmp $0x0,%al -jnz timer -rol $0x10,%eax -dec %ax -cmp $0x0,%ax; -rol $0x10,%eax -jnz timer -// timer - -in $0x61,%al -and $0xfc,%al -out %al,$0x61 -jmp *subroutinereg - -dohelp: -mov $cmds,resultreg -mov $readcommand,subroutinereg -jmp displaystring - -memt: -movl $memt1, subroutinereg -jmp readnibbles -memt1: -mov resultreg,%ecx -movl $memt2, subroutinereg -jmp readnibbles -memt2: -mov resultreg,%ebx -xchg %ecx,%eax -mov $readcommand,%esp // internal to linux bios -jmp ramtest - -pcirb: -movl $pcirb1, subroutinereg -jmp readnibbles -pcirb1: -mov resultreg,%eax -PCI_READ_CONFIG_BYTE -and $0xff,%eax -mov %eax,resultreg -mov $readcommand,subroutinereg -jmp displayhex - -pcirw: -movl $pcirw1, subroutinereg -jmp readnibbles -pcirw1: -mov resultreg,%eax -PCI_READ_CONFIG_WORD -and $0xffff,%eax -mov %eax,resultreg -mov $readcommand,subroutinereg -jmp displayhex - -pcirl: -movl $pcirl1, subroutinereg -jmp readnibbles -pcirl1: -mov resultreg,%eax -PCI_READ_CONFIG_DWORD -mov %eax,resultreg -mov $readcommand,subroutinereg -jmp displayhex - - - - -pciwb: -movl $pciwb1, subroutinereg -jmp readnibbles -pciwb1: -mov resultreg,%ebx -movl $pciwb2, subroutinereg -jmp readnibbles -pciwb2: -mov resultreg,%edx -mov %ebx,%eax -PCI_WRITE_CONFIG_BYTE -jmp readcommand - -pciww: -movl $pciww1, subroutinereg -jmp readnibbles -pciww1: -mov resultreg,%ebx -movl $pciww2, subroutinereg -jmp readnibbles -pciww2: -mov resultreg,%ecx -mov %ebx,%eax -PCI_WRITE_CONFIG_WORD -jmp readcommand - -pciwl: -movl $pciwl1, subroutinereg -jmp readnibbles -pciwl1: -mov resultreg,%ebx -movl $pciwl2, subroutinereg -jmp readnibbles -pciwl2: -mov resultreg,%ecx -mov %ebx,%eax -PCI_WRITE_CONFIG_DWORD -jmp readcommand - -cram: -//likely not working. Just testing for now -movl $cram1, subroutinereg -jmp readnibbles -cram1: -mov resultreg,%ebx -movl $cram1, subroutinereg -jmp readnibbles -cram2: -mov resultreg,%ecx -// enable it -mov %cr0,%eax -and $0x9fffffff,%eax // also try 0x0fff, 0x2ff(write back)... -mov %eax,%cr0 -//wbinvd ?? -cacheloop: -mov (%ebx),%eax -inc %ebx -loop cacheloop -// disable it -mov %cr0,%eax -or $0x60000000,%eax -mov %eax,%cr0 -//wbinvd ?? - -dodl: -movl $dl1, subroutinereg -jmp readnibbles -dl1: -mov resultreg,%ebx -movl $dl2, subroutinereg -jmp readnibbles -dl2: -mov resultreg,%ecx -mov resultreg,subroutinereg -mov %ebx,resultreg -dlloop: -mov UART_BASEADDR+5,%dx -in %dx, %al -and $0x9f,%al -test $0x01,%al -jz dlloop -mov UART_BASEADDR,%dx -in %dx,%al -mov %al,(%ebx) -inc %ebx -loop dlloop -csum: -mov subroutinereg,%ecx -shr $0x02,%ecx -mov resultreg,%ebx -mov $0x0,%eax -csumloop: -rol $0x03,%eax -mov (%ebx),%dl -xor %dl,%al -inc %ebx -loop csumloop -mov $readcommand,subroutinereg -mov %eax,resultreg -jmp displayhex - -baud: -mov $sorry,resultreg -mov $readcommand,subroutinereg -jmp displaystring - -mcp: -movl $mcp1, subroutinereg -jmp readnibbles -mcp1: -mov resultreg,%ebx -movl $mcp2, subroutinereg -jmp readnibbles -mcp2: -mov resultreg,%ecx -movl $mcp3, subroutinereg -jmp readnibbles -mcp3: -mov resultreg,%eax -xchg %ecx,%eax -mcploop: -mov (%ebx),%dl -mov %dl,(%eax) -inc %ebx -inc %eax -loop mcploop -jmp readcommand - -dopattern: -movl $pat1, subroutinereg -jmp readnibbles -pat1: -mov resultreg,%ebx -movl $pat2, subroutinereg -jmp readnibbles -pat2: -mov resultreg,%ecx -movl $pat3, subroutinereg -jmp readnibbles -pat3: -mov resultreg,%eax -xchg %ecx,%eax -patloop: -rol $0x08,%ebx -mov %bl,(%eax) -inc %eax -loop patloop -jmp readcommand - - -doexit: - // LB specific: -RETSP // if there's no stack yet, caller must set %esp manually -// RET_LABEL(low_level_shell) - - -//Linux OS Specific -ioperms: -movl $sys_IOPL, %eax # system-call ID-number -movl $3, %ebx # new value for IO0PL -int $0x80 # enter the kernel -ret - -llshell_out: |