import ports
import buf
import blit
splashscreen=buf.sym('splashscreen')
framebuffer =buf.abs(0xa0000, 0x10000)
textbuffer =buf.abs(0xb8000, 4000)
savebuffer =buf.bss(4000)
font0 =buf.bss(8192)
textmode = 1
def exittext():
savebuffer[:] = textbuffer
set320x200x256()
savefonts()
global textmode; textmode = 0
def entertext():
global textmode; textmode = 1
restorefonts()
set80x25()
textbuffer[:] = savebuffer
def cleartext():
if textmode: tb = textbuffer
else: tb = savebuffer
blit.fill(tb, 4000, 0,0, 4000,1, ' \015 \015 \015 \015')
def set640x480x16():
ports.inb(0x3DA)
# % objcopy -R .note -R .comment -S -O binary a.out a.bin
# % od -An -tx1 a.bin|tr " \n" "\n "|tail +2|sed -e 's/^/\\x/'|tr -d " \n"
obj = "\x55\x89\xe5\x83\xec\x04\xc7\x45\xfc\x7c\x01\x08\x00\x8b\x45\xfc\x50\xe8\x2a\x00\x00\x00\x83\xc4\x04\x89\xc0\x50\x8b\x45\xfc\x50\x6a\x01\xe8\xf9\x00\x00\x00\x83\xc4\x0c\x6a\x00\xe8\xcf\x00\x00\x00\x83\xc4\x04\xc9\xc3\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x8b\x44\x24\x04\xba\x03\x00\x00\x00\x21\xc2\x74\x24\x7a\x17\x38\x30\x0f\x84\x9f\x00\x00\x00\x40\x38\x30\x0f\x84\x96\x00\x00\x00\x40\x83\xf2\x02\x74\x0b\x38\x30\x0f\x84\x88\x00\x00\x00\x40\x31\xd2\x8b\x08\x83\xc0\x04\x29\xca\x81\xc1\xff\xfe\xfe\xfe\x4a\x73\x58\x31\xca\x81\xe2\x00\x01\x01\x01\x75\x4e\x8b\x08\x83\xc0\x04\x29\xca\x81\xc1\xff\xfe\xfe\xfe\x4a\x73\x3e\x31\xca\x81\xe2\x00\x01\x01\x01\x75\x34\x8b\x08\x83\xc0\x04\x29\xca\x81\xc1\xff\xfe\xfe\xfe\x4a\x73\x24\x31\xca\x81\xe2\x00\x01\x01\x01\x75\x1a\x8b\x08\x83\xc0\x04\x29\xca\x81\xc1\xff\xfe\xfe\xfe\x4a\x73\x0a\x31\xca\x81\xe2\x00\x01\x01\x01\x74\x98\x83\xe8\x04\x81\xe9\xff\xfe\xfe\xfe\x80\xf9\x00\x74\x0f\x40\x84\xed\x74\x0a\xc1\xe9\x10\x40\x80\xf9\x00\x74\x01\x40\x2b\x44\x24\x04\xc3\x90\x90\x90\x90\x90\x89\xda\x8b\x5c\x24\x04\xb8\x01\x00\x00\x00\xcd\x80\x89\xd3\x3d\x01\xf0\xff\xff\x0f\x83\x36\x00\x00\x00\x90\x90\x90\x90\x90\x90\x53\x8b\x54\x24\x10\x8b\x4c\x24\x0c\x8b\x5c\x24\x08\xb8\x04\x00\x00\x00\xcd\x80\x5b\x3d\x01\xf0\xff\xff\x0f\x83\x10\x00\x00\x00\xc3\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\xf7\xd8\xa3\x8c\x11\x08\x00\x50\xe8\x13\x00\x00\x00\x59\x89\x08\xb8\xff\xff\xff\xff\xc3\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x55\x89\xe5\xb8\x8c\x11\x08\x00\x89\xec\x5d\xc3\x48\x65\x6c\x6c\x6f\x2c\x20\x77\x6f\x72\x6c\x64\x21\x0a\x00"
#void _start()
#{
# char *s;
# for(s = "Hello, world!\n"; *s; ++s) {
# write(1, s, 1);
# }
# _exit(0);
#}
#obj = "\x55\x89\xe5\x83\xec\x04\x90\xc7\x45\xfc\xbc\x00\x08\x00\x8b\x45\xfc\x80\x38\x00\x75\x02\xeb\x18\x6a\x01\x8b\x45\xfc\x50\x6a\x01\xe8\x3b\x00\x00\x00\x83\xc4\x0c\xff\x45\xfc\xeb\xe1\x8d\x76\x00\x6a\x00\xe8\x09\x00\x00\x00\x83\xc4\x04\x89\xf6\xc9\xc3\x90\x90\x89\xda\x8b\x5c\x24\x04\xb8\x01\x00\x00\x00\xcd\x80\x89\xd3\x3d\x01\xf0\xff\xff\x0f\x83\x36\x00\x00\x00\x90\x90\x90\x90\x90\x90\x53\x8b\x54\x24\x10\x8b\x4c\x24\x0c\x8b\x5c\x24\x08\xb8\x04\x00\x00\x00\xcd\x80\x5b\x3d\x01\xf0\xff\xff\x0f\x83\x10\x00\x00\x00\xc3\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\xf7\xd8\xa3\xcc\x10\x08\x00\x50\xe8\x13\x00\x00\x00\x59\x89\x08\xb8\xff\xff\xff\xff\xc3\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x55\x89\xe5\xb8\xcc\x10\x08\x00\x89\xec\x5d\xc3\x48\x65\x6c\x6c\x6f\x2c\x20\x77\x6f\x72\x6c\x64\x21\x0a\x00"
linuxbuf = buf.abs(0x80000, 0x10000) # would eventually be 0x8048000
linuxbuf[:len(obj)] = obj # and this would be an ELF loader
stack.linux(linuxbuf)
while 1:
esp = stack.swap(None, linuxbuf)
eax = stack.linaddr(linuxbuf, esp + 0x1c)
ecx = stack.linaddr(linuxbuf, esp + 0x18)
edx = stack.linaddr(linuxbuf, esp + 0x14)
if eax == 1: # exit
break
elif eax == 4: # write
while edx:
# % objcopy -R .note -R .comment -S -O binary a.out a.bin
# % od -An -tx1 a.bin|tr " \n" "\n "|tail +2|sed -e 's/^/\\x/'|tr -d " \n"
obj = "\x55\x89\xe5\x83\xec\x04\xc7\x45\xfc\x7c\x01\x08\x00\x8b\x45\xfc\x50\xe8\x2a\x00\x00\x00\x83\xc4\x04\x89\xc0\x50\x8b\x45\xfc\x50\x6a\x01\xe8\xf9\x00\x00\x00\x83\xc4\x0c\x6a\x00\xe8\xcf\x00\x00\x00\x83\xc4\x04\xc9\xc3\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x8b\x44\x24\x04\xba\x03\x00\x00\x00\x21\xc2\x74\x24\x7a\x17\x38\x30\x0f\x84\x9f\x00\x00\x00\x40\x38\x30\x0f\x84\x96\x00\x00\x00\x40\x83\xf2\x02\x74\x0b\x38\x30\x0f\x84\x88\x00\x00\x00\x40\x31\xd2\x8b\x08\x83\xc0\x04\x29\xca\x81\xc1\xff\xfe\xfe\xfe\x4a\x73\x58\x31\xca\x81\xe2\x00\x01\x01\x01\x75\x4e\x8b\x08\x83\xc0\x04\x29\xca\x81\xc1\xff\xfe\xfe\xfe\x4a\x73\x3e\x31\xca\x81\xe2\x00\x01\x01\x01\x75\x34\x8b\x08\x83\xc0\x04\x29\xca\x81\xc1\xff\xfe\xfe\xfe\x4a\x73\x24\x31\xca\x81\xe2\x00\x01\x01\x01\x75\x1a\x8b\x08\x83\xc0\x04\x29\xca\x81\xc1\xff\xfe\xfe\xfe\x4a\x73\x0a\x31\xca\x81\xe2\x00\x01\x01\x01\x74\x98\x83\xe8\x04\x81\xe9\xff\xfe\xfe\xfe\x80\xf9\x00\x74\x0f\x40\x84\xed\x74\x0a\xc1\xe9\x10\x40\x80\xf9\x00\x74\x01\x40\x2b\x44\x24\x04\xc3\x90\x90\x90\x90\x90\x89\xda\x8b\x5c\x24\x04\xb8\x01\x00\x00\x00\xcd\x80\x89\xd3\x3d\x01\xf0\xff\xff\x0f\x83\x36\x00\x00\x00\x90\x90\x90\x90\x90\x90\x53\x8b\x54\x24\x10\x8b\x4c\x24\x0c\x8b\x5c\x24\x08\xb8\x04\x00\x00\x00\xcd\x80\x5b\x3d\x01\xf0\xff\xff\x0f\x83\x10\x00\x00\x00\xc3\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\xf7\xd8\xa3\x8c\x11\x08\x00\x50\xe8\x13\x00\x00\x00\x59\x89\x08\xb8\xff\xff\xff\xff\xc3\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x55\x89\xe5\xb8\x8c\x11\x08\x00\x89\xec\x5d\xc3\x48\x65\x6c\x6c\x6f\x2c\x20\x77\x6f\x72\x6c\x64\x21\x0a\x00"
# void _start()
# {
# char *s;
# for(s = "Hello, world!\n"; *s; ++s) {
# write(1, s, 1);
# }
# _exit(0);
# }
# obj = "\x55\x89\xe5\x83\xec\x04\x90\xc7\x45\xfc\xbc\x00\x08\x00\x8b\x45\xfc\x80\x38\x00\x75\x02\xeb\x18\x6a\x01\x8b\x45\xfc\x50\x6a\x01\xe8\x3b\x00\x00\x00\x83\xc4\x0c\xff\x45\xfc\xeb\xe1\x8d\x76\x00\x6a\x00\xe8\x09\x00\x00\x00\x83\xc4\x04\x89\xf6\xc9\xc3\x90\x90\x89\xda\x8b\x5c\x24\x04\xb8\x01\x00\x00\x00\xcd\x80\x89\xd3\x3d\x01\xf0\xff\xff\x0f\x83\x36\x00\x00\x00\x90\x90\x90\x90\x90\x90\x53\x8b\x54\x24\x10\x8b\x4c\x24\x0c\x8b\x5c\x24\x08\xb8\x04\x00\x00\x00\xcd\x80\x5b\x3d\x01\xf0\xff\xff\x0f\x83\x10\x00\x00\x00\xc3\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\xf7\xd8\xa3\xcc\x10\x08\x00\x50\xe8\x13\x00\x00\x00\x59\x89\x08\xb8\xff\xff\xff\xff\xc3\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x55\x89\xe5\xb8\xcc\x10\x08\x00\x89\xec\x5d\xc3\x48\x65\x6c\x6c\x6f\x2c\x20\x77\x6f\x72\x6c\x64\x21\x0a\x00"
linuxbuf = buf.abs(0x80000, 0x10000) # would eventually be 0x8048000
linuxbuf[: len(obj)] = obj # and this would be an ELF loader
stack.linux(linuxbuf)
while 1:
esp = stack.swap(None, linuxbuf)
eax = stack.linaddr(linuxbuf, esp + 0x1C)
ecx = stack.linaddr(linuxbuf, esp + 0x18)
edx = stack.linaddr(linuxbuf, esp + 0x14)
if eax == 1: # exit
break
elif eax == 4: # write
while edx:
import ports
import buf
import blit
splashscreen = buf.sym('splashscreen')
framebuffer = buf.abs(0xa0000, 0x10000)
textbuffer = buf.abs(0xb8000, 4000)
savebuffer = buf.bss(4000)
font0 = buf.bss(8192)
textmode = 1
def exittext():
savebuffer[:] = textbuffer
set320x200x256()
savefonts()
global textmode
textmode = 0
def entertext():
global textmode
textmode = 1
restorefonts()
set80x25()
textbuffer[:] = savebuffer
def cleartext():
if textmode: tb = textbuffer
