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This commit is contained in:
parent
2d306e2a98
commit
b964fa586f
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@ -200,8 +200,7 @@ If you're still reading, here are some more things to check out:
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- [Commandline reference for the bootstrap C++ program.](bootstrap.md)
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- The [list of x86 opcodes](subx_opcodes) supported in SubX: `./bootstrap
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help opcodes`.
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- The [list of x86 opcodes](subx_opcodes) supported in SubX: `linux/bootstrap/bootstrap help opcodes`.
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- [Some details on the unconventional organization of this project.](http://akkartik.name/post/four-repos)
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2
boot.hex
2
boot.hex
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@ -9,7 +9,7 @@
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# To convert to a disk image, first prepare a realistically sized disk image:
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# dd if=/dev/zero of=disk.img count=20160 # 512-byte sectors, so 10MB
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# Create initial sectors from this file:
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# ./bootstrap run apps/hex < baremetal/boot.hex > boot.bin
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# bootstrap/bootstrap run hex < baremetal/boot.hex > boot.bin
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# Translate other sectors into a file called a.img
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# Load all sectors into the disk image:
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# cat boot.bin a.img > disk.bin
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@ -11,7 +11,7 @@
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# To convert to a disk image, first prepare a realistically sized disk image:
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# dd if=/dev/zero of=disk.img count=20160 # 512-byte sectors, so 10MB
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# Now fill in sectors:
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# ./bootstrap run apps/hex < baremetal/boot0.hex > boot.bin
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# bootstrap/bootstrap run hex < baremetal/boot0.hex > boot.bin
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# dd if=boot.bin of=disk.img conv=notrunc
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# To run:
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# qemu-system-i386 disk.img
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2
ex1.hex
2
ex1.hex
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@ -6,7 +6,7 @@
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# To convert to a disk image, first prepare a realistically sized disk image:
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# dd if=/dev/zero of=disk.img count=20160 # 512-byte sectors, so 10MB
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# Load the program on the disk image:
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# cat baremetal/boot.hex baremetal/ex1.hex |./bootstrap run apps/hex > a.bin
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# cat baremetal/boot.hex baremetal/ex1.hex |bootstrap/bootstrap run hex > a.bin
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# dd if=a.bin of=disk.img conv=notrunc
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# To run:
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# qemu-system-i386 disk.img
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2
ex2.hex
2
ex2.hex
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@ -3,7 +3,7 @@
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# To run, first prepare a realistically sized disk image:
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# dd if=/dev/zero of=disk.img count=20160 # 512-byte sectors, so 10MB
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# Load the program on the disk image:
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# cat baremetal/boot.hex baremetal/ex2.hex |./bootstrap run apps/hex > a.bin
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# cat baremetal/boot.hex baremetal/ex2.hex |bootstrap/bootstrap run hex > a.bin
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# dd if=a.bin of=disk.img conv=notrunc
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# To run:
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# qemu-system-i386 disk.img
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2
ex3.hex
2
ex3.hex
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@ -4,7 +4,7 @@
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# To run, first prepare a realistically sized disk image:
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# dd if=/dev/zero of=disk.img count=20160 # 512-byte sectors, so 10MB
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# Load the program on the disk image:
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# cat baremetal/boot.hex baremetal/ex3.hex |./bootstrap run apps/hex > a.bin
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# cat baremetal/boot.hex baremetal/ex3.hex |bootstrap/bootstrap run hex > a.bin
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# dd if=a.bin of=disk.img conv=notrunc
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# To run:
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# qemu-system-i386 disk.img
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@ -9,8 +9,8 @@
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# string'.
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#
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# To run (from the subx directory):
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# $ ./bootstrap translate 05[0-2]*.subx -o /tmp/tmp52
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# $ ./bootstrap run /tmp/tmp52 # runs a series of tests
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# $ bootstrap/bootstrap translate 10[0-3]*.subx -o a.elf
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# $ bootstrap/bootstrap run a.elf # runs a series of tests
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# ...... # all tests pass
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#
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# (We can't yet run the tests when given a "test" commandline argument,
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@ -7,13 +7,13 @@
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# because we don't know if they refer to the line above or the line below.
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#
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# To run:
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# $ ./bootstrap translate init.linux [01]*.subx apps/subx-params.subx apps/assort.subx -o apps/assort
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# $ bootstrap/bootstrap translate [01]*.subx apps/subx-params.subx apps/assort.subx -o apps/assort
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# $ cat x
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# == code
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# abc
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# == code
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# def
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# $ cat x |./bootstrap run apps/assort
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# $ cat x |bootstrap/bootstrap run assort
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# == code
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# abc
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# def
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@ -3,8 +3,8 @@
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# except that we support hex digits.
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#
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# To run:
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# $ ./bootstrap translate init.linux [01]*.subx apps/crenshaw2-1.subx -o apps/crenshaw2-1
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# $ echo '3' |./bootstrap run apps/crenshaw2-1
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# $ bootstrap/bootstrap translate [01]*.subx apps/crenshaw2-1.subx -o apps/crenshaw2-1
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# $ echo '3' |bootstrap/bootstrap run crenshaw2-1
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# Expected output:
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# # syscall(exit, 3)
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# bb/copy-to-ebx 3/imm32
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@ -12,14 +12,14 @@
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# cd/syscall 0x80/imm8
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#
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# To run the generated output:
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# $ echo '3' |./bootstrap run apps/crenshaw2-1 > z1.subx
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# $ ./bootstrap translate init.linux z1.subx -o z1
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# $ ./bootstrap run z1
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# $ echo '3' |bootstrap/bootstrap run crenshaw2-1 > z1.subx
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# $ bootstrap/bootstrap translate z1.subx -o z1
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# $ bootstrap/bootstrap run z1
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# $ echo $?
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# 3
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#
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# Stdin must contain just a single hex digit. Other input will print an error:
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# $ echo 'xyz' |./bootstrap run apps/crenshaw2-1
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# $ echo 'xyz' |bootstrap/bootstrap run crenshaw2-1
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# Error: integer expected
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#
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# Names in this file sometimes follow Crenshaw's original rather than my usual
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@ -3,8 +3,8 @@
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# except that we support hex numbers of multiple digits.
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#
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# To run:
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# $ ./bootstrap translate init.linux [01]*.subx apps/crenshaw2-1b.subx -o apps/crenshaw2-1b
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# $ echo '1a' |./bootstrap run apps/crenshaw2-1b
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# $ bootstrap/bootstrap translate [01]*.subx apps/crenshaw2-1b.subx -o apps/crenshaw2-1b
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# $ echo '1a' |bootstrap/bootstrap run crenshaw2-1b
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# Expected output:
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# # syscall(exit, 1a)
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# bb/copy-to-ebx 3/imm32
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# cd/syscall 0x80/imm8
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#
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# To run the generated output:
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# $ echo '1a' |./bootstrap run apps/crenshaw2-1b > z1.subx
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# $ ./bootstrap translate init.linux z1.subx -o z1
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# $ ./bootstrap run z1
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# $ echo '1a' |bootstrap/bootstrap run crenshaw2-1b > z1.subx
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# $ bootstrap/bootstrap translate z1.subx -o z1
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# $ bootstrap/bootstrap run z1
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# $ echo $?
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# 26 # 0x1a in decimal
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#
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# Stdin must contain just a single hex digit. Other input will print an error:
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# $ echo 'xyz' |./bootstrap run apps/crenshaw2-1b
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# $ echo 'xyz' |bootstrap/bootstrap run crenshaw2-1b
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# Error: integer expected
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#
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# Names in this file sometimes follow Crenshaw's original rather than my usual
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@ -2,11 +2,11 @@
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# Replace them with references to new variables in the data segment.
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#
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# To run:
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# $ ./bootstrap translate init.linux [01]*.subx apps/subx-params.subx apps/dquotes.subx -o apps/dquotes
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# $ bootstrap/bootstrap translate [01]*.subx apps/subx-params.subx apps/dquotes.subx -o apps/dquotes
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# $ cat x
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# == code
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# ab "cd ef"/imm32
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# $ cat x |./bootstrap run apps/dquotes
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# $ cat x |bootstrap/bootstrap run dquotes
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# == code
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# ab __string1/imm32
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# == data
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@ -2,8 +2,8 @@
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# Just return 42.
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#
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# To run:
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# $ ./bootstrap translate init.linux apps/ex1.subx -o apps/ex1
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# $ ./bootstrap run apps/ex1
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# $ bootstrap/bootstrap translate apps/ex1.subx -o apps/ex1
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# $ bootstrap/bootstrap run ex1
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# Expected result:
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# $ echo $?
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# 42
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@ -1,8 +1,8 @@
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# String comparison: return 1 iff the two args passed in at the commandline are equal.
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#
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# To run:
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# $ ./bootstrap translate init.linux apps/ex10.subx -o apps/ex10
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# $ ./bootstrap run apps/ex10 abc abd
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# $ bootstrap/bootstrap translate apps/ex10.subx -o apps/ex10
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# $ bootstrap/bootstrap run ex10 abc abd
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# Expected result:
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# $ echo $?
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# 0 # false
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@ -6,8 +6,8 @@
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# a null-terminated 'kernel string' with a size-prefixed 'SubX string'.
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#
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# To run:
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# $ ./bootstrap translate init.linux apps/ex11.subx -o apps/ex11
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# $ ./bootstrap run apps/ex11 # runs a series of tests
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# $ bootstrap/bootstrap translate apps/ex11.subx -o apps/ex11
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# $ bootstrap/bootstrap run ex11 # runs a series of tests
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# ...... # all tests pass
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#
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# (We can't yet run the tests when given a "test" commandline argument,
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@ -2,8 +2,8 @@
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# Create a new segment using mmap, save the address, write to it.
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#
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# To run:
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# $ ./bootstrap translate init.linux apps/ex12.subx -o apps/ex12
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# $ ./bootstrap run apps/ex12
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# $ bootstrap/bootstrap translate apps/ex12.subx -o apps/ex12
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# $ bootstrap/bootstrap run ex12
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# You shouldn't get a segmentation fault.
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== code
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@ -1,8 +1,8 @@
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# Compare 3 and 3.
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#
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# To run:
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# $ ./bootstrap translate init.linux apps/ex13.subx -o apps/ex13
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# $ ./bootstrap run apps/ex13
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# $ bootstrap/bootstrap translate apps/ex13.subx -o apps/ex13
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# $ bootstrap/bootstrap run ex13
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# Expected result:
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# $ echo $?
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# 1
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|
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@ -1,8 +1,8 @@
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# Multiply 2 numbers.
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#
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# To run:
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# $ ./bootstrap translate init.linux apps/ex14.subx -o apps/ex14
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# $ ./bootstrap run apps/ex14
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# $ bootstrap/bootstrap translate apps/ex14.subx -o apps/ex14
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# $ bootstrap/bootstrap run ex14
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# Expected result:
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# $ echo $?
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# 6
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|
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|
@ -1,8 +1,8 @@
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# Add 3 and 4, and return the result in the exit code.
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#
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# To run:
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# $ ./bootstrap translate init.linux apps/ex2.subx -o apps/ex2
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# $ ./bootstrap run apps/ex2
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# $ bootstrap/bootstrap translate apps/ex2.subx -o apps/ex2
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# $ bootstrap/bootstrap run ex2
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# Expected result:
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# $ echo $?
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# 2
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|
|
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@ -1,8 +1,8 @@
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# Add the first 10 numbers, and return the result in the exit code.
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#
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# To run:
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# $ ./bootstrap translate init.linux apps/ex3.subx -o apps/ex3
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# $ ./bootstrap run apps/ex3
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# $ bootstrap/bootstrap translate apps/ex3.subx -o apps/ex3
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# $ bootstrap/bootstrap run ex3
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# Expected result:
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# $ echo $?
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# 55
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|
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@ -1,8 +1,8 @@
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# Read a character from stdin, save it to a global, write it to stdout.
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#
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# To run:
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# $ ./bootstrap translate init.linux apps/ex4.subx -o apps/ex4
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# $ ./bootstrap run apps/ex4
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# $ bootstrap/bootstrap translate apps/ex4.subx -o apps/ex4
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# $ bootstrap/bootstrap run ex4
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== data
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|
|
|
@ -1,8 +1,8 @@
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# Read a character from stdin, save it to a local on the stack, write it to stdout.
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#
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# To run:
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# $ ./bootstrap translate init.linux apps/ex5.subx -o apps/ex5
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# $ ./bootstrap run apps/ex5
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# $ bootstrap/bootstrap translate apps/ex5.subx -o apps/ex5
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# $ bootstrap/bootstrap run ex5
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|
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== code
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# instruction effective address register displacement immediate
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|
|
|
@ -1,8 +1,8 @@
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# Print out a (global variable) string to stdout.
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#
|
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# To run:
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# $ ./bootstrap translate init.linux apps/ex6.subx -o apps/ex6
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# $ ./bootstrap run apps/ex6
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# $ bootstrap/bootstrap translate apps/ex6.subx -o apps/ex6
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# $ bootstrap/bootstrap run ex6
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# Hello, world!
|
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|
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== code
|
||||
|
|
|
@ -5,8 +5,8 @@
|
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# the character read.
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#
|
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# To run:
|
||||
# $ ./bootstrap translate init.linux apps/ex7.subx -o apps/ex7
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# $ ./bootstrap run apps/ex7
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# $ bootstrap/bootstrap translate apps/ex7.subx -o apps/ex7
|
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# $ bootstrap/bootstrap run ex7
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# Expected result:
|
||||
# $ echo $?
|
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# 97
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|
|
|
@ -1,8 +1,8 @@
|
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# Example reading commandline arguments: compute length of first arg.
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#
|
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# To run:
|
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# $ ./bootstrap translate init.linux apps/ex8.subx -o apps/ex8
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||||
# $ ./bootstrap run apps/ex8 abc de fghi
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# $ bootstrap/bootstrap translate apps/ex8.subx -o apps/ex8
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# $ bootstrap/bootstrap run ex8 abc de fghi
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# Expected result:
|
||||
# $ echo $?
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# 3 # length of 'abc'
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|
|
|
@ -4,8 +4,8 @@
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# letter of second arg.
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#
|
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# To run:
|
||||
# $ ./bootstrap translate init.linux apps/ex9.subx -o apps/ex9
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# $ ./bootstrap run apps/ex9 z x
|
||||
# $ bootstrap/bootstrap translate apps/ex9.subx -o apps/ex9
|
||||
# $ bootstrap/bootstrap run ex9 z x
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||||
# Expected result:
|
||||
# $ echo $?
|
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# 2
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|
|
|
@ -1,14 +1,14 @@
|
|||
## compute the factorial of 5, and print the result
|
||||
#
|
||||
# To run:
|
||||
# $ ./bootstrap translate init.linux [01]*.subx apps/factorial.subx -o apps/factorial
|
||||
# $ ./bootstrap run apps/factorial
|
||||
# $ bootstrap/bootstrap translate [01]*.subx apps/factorial.subx -o apps/factorial
|
||||
# $ bootstrap/bootstrap run factorial
|
||||
# Expected result:
|
||||
# $ echo $?
|
||||
# 120
|
||||
#
|
||||
# You can also run the automated test suite:
|
||||
# $ ./bootstrap run apps/factorial test
|
||||
# $ bootstrap/bootstrap run factorial test
|
||||
# Expected output:
|
||||
# ........
|
||||
# Every '.' indicates a passing test. Failing tests get a 'F'.
|
||||
|
|
|
@ -5,13 +5,13 @@
|
|||
#
|
||||
# To run:
|
||||
# $ ./translate_subx init.linux [01]*.subx apps/factorial.subx -o apps/factorial
|
||||
# $ ./bootstrap run apps/factorial
|
||||
# $ bootstrap/bootstrap run factorial
|
||||
# Expected result:
|
||||
# $ echo $?
|
||||
# 120
|
||||
#
|
||||
# You can also run the automated test suite:
|
||||
# $ ./bootstrap run apps/factorial test
|
||||
# $ bootstrap/bootstrap run factorial test
|
||||
# Expected output:
|
||||
# ........
|
||||
# Every '.' indicates a passing test. Failing tests get a 'F'.
|
||||
|
|
|
@ -6,13 +6,13 @@
|
|||
#
|
||||
# To run:
|
||||
# $ ./translate_subx init.linux [01]*.subx apps/factorial.subx -o apps/factorial
|
||||
# $ ./bootstrap run apps/factorial
|
||||
# $ bootstrap/bootstrap run factorial
|
||||
# Expected result:
|
||||
# $ echo $?
|
||||
# 120
|
||||
#
|
||||
# You can also run the automated test suite:
|
||||
# $ ./bootstrap run apps/factorial test
|
||||
# $ bootstrap/bootstrap run factorial test
|
||||
# Expected output:
|
||||
# ........
|
||||
# Every '.' indicates a passing test. Failing tests get a 'F'.
|
||||
|
|
|
@ -7,13 +7,13 @@
|
|||
#
|
||||
# To run:
|
||||
# $ ./translate_subx init.linux [01]*.subx apps/factorial.subx -o apps/factorial
|
||||
# $ ./bootstrap run apps/factorial
|
||||
# $ bootstrap/bootstrap run factorial
|
||||
# Expected result:
|
||||
# $ echo $?
|
||||
# 120
|
||||
#
|
||||
# You can also run the automated test suite:
|
||||
# $ ./bootstrap run apps/factorial test
|
||||
# $ bootstrap/bootstrap run factorial test
|
||||
# Expected output:
|
||||
# ........
|
||||
# Every '.' indicates a passing test. Failing tests get a 'F'.
|
||||
|
|
|
@ -3,8 +3,8 @@
|
|||
# comments between '#' and newline.
|
||||
#
|
||||
# To run:
|
||||
# $ ./bootstrap translate init.linux [01]*.subx apps/subx-params.subx apps/hex.subx -o apps/hex
|
||||
# $ echo '80 81 82 # comment' |./bootstrap run apps/hex |xxd -
|
||||
# $ bootstrap/bootstrap translate [01]*.subx apps/subx-params.subx apps/hex.subx -o apps/hex
|
||||
# $ echo '80 81 82 # comment' |bootstrap/bootstrap run hex |xxd -
|
||||
# Expected output:
|
||||
# 00000000: 8081 82
|
||||
#
|
||||
|
|
|
@ -3,8 +3,8 @@
|
|||
# uses are left untouched.
|
||||
#
|
||||
# To run:
|
||||
# $ ./bootstrap translate init.linux [01]*.subx apps/subx-params.subx apps/pack.subx -o apps/pack
|
||||
# $ echo '05/add-to-eax 0x20/imm32' |./bootstrap run apps/pack
|
||||
# $ bootstrap/bootstrap translate [01]*.subx apps/subx-params.subx apps/pack.subx -o apps/pack
|
||||
# $ echo '05/add-to-eax 0x20/imm32' |bootstrap/bootstrap run pack
|
||||
# Expected output:
|
||||
# 05 20 00 00 00 # 05/add-to-eax 0x20/imm32
|
||||
# The original instruction gets included as a comment at the end of each
|
||||
|
|
|
@ -1,8 +1,8 @@
|
|||
# Repeatedly read 32-bit numbers from /dev/random, print them to stdout.
|
||||
#
|
||||
# To run:
|
||||
# $ ./bootstrap translate init.linux [01]*.subx apps/random.subx -o apps/random
|
||||
# $ ./bootstrap run apps/random
|
||||
# $ bootstrap/bootstrap translate [01]*.subx apps/random.subx -o apps/random
|
||||
# $ bootstrap/bootstrap run random
|
||||
|
||||
== code 0x09000000
|
||||
# instruction effective address register displacement immediate
|
||||
|
|
|
@ -2,36 +2,36 @@
|
|||
# arguments.
|
||||
#
|
||||
# To run:
|
||||
# $ ./bootstrap translate init.linux [012]*.subx apps/subx-params.subx apps/sigils.subx -o apps/sigils
|
||||
# $ bootstrap/bootstrap translate [012]*.subx apps/subx-params.subx apps/sigils.subx -o apps/sigils
|
||||
#
|
||||
# We currently support the following notations:
|
||||
#
|
||||
# 1.
|
||||
# $ echo '%eax' | ./bootstrap run apps/sigils
|
||||
# $ echo '%eax' | bootstrap/bootstrap run sigils
|
||||
# 3/mod 0/rm32
|
||||
#
|
||||
# 2.
|
||||
# $ echo '*eax' | ./bootstrap run apps/sigils
|
||||
# $ echo '*eax' | bootstrap/bootstrap run sigils
|
||||
# 0/mod 0/rm32
|
||||
#
|
||||
# 3.
|
||||
# $ echo '*(eax+4)' | ./bootstrap run apps/sigils
|
||||
# $ echo '*(eax+4)' | bootstrap/bootstrap run sigils
|
||||
# 2/mod 0/rm32 4/disp32
|
||||
#
|
||||
# 4.
|
||||
# $ echo '*(eax+ecx)' | ./bootstrap run apps/sigils
|
||||
# $ echo '*(eax+ecx)' | bootstrap/bootstrap run sigils
|
||||
# 0/mod 4/rm32 0/base 1/index 0/scale
|
||||
#
|
||||
# 5.
|
||||
# $ echo '*(eax+ecx+4)' | ./bootstrap run apps/sigils
|
||||
# $ echo '*(eax+ecx+4)' | bootstrap/bootstrap run sigils
|
||||
# 2/mod 4/rm32 0/base 1/index 0/scale 4/disp32
|
||||
#
|
||||
# 6.
|
||||
# $ echo '*(eax+ecx<<2+4)' | ./bootstrap run apps/sigils
|
||||
# $ echo '*(eax+ecx<<2+4)' | bootstrap/bootstrap run sigils
|
||||
# 2/mod 4/rm32 0/base 1/index 2/scale 4/disp32
|
||||
#
|
||||
# 7.
|
||||
# $ echo '*Foo' | ./bootstrap run apps/sigils
|
||||
# $ echo '*Foo' | bootstrap/bootstrap run sigils
|
||||
# 0/mod 5/rm32/.disp32 Foo/disp32
|
||||
#
|
||||
# TODO: *(Foo+ecx<<2)
|
||||
|
|
|
@ -29,7 +29,7 @@ rudimentary but hopefully still workable toolkit:
|
|||
```
|
||||
$ cd linux
|
||||
$ ./translate_subx_debug file1.subx file2.subx ... # generating a.elf
|
||||
$ ./bootstrap --trace run a.elf arg1 arg2
|
||||
$ bootstrap/bootstrap --trace run a.elf arg1 arg2
|
||||
saving trace to 'last_run'
|
||||
```
|
||||
|
||||
|
|
|
@ -3,7 +3,7 @@
|
|||
# Use the addresses assigned to replace labels.
|
||||
#
|
||||
# To build:
|
||||
# $ ./bootstrap translate init.linux [01]*.subx apps/subx-params.subx apps/survey_baremetal.subx -o apps/survey_baremetal
|
||||
# $ bootstrap/bootstrap translate [01]*.subx apps/subx-params.subx apps/survey_baremetal.subx -o apps/survey_baremetal
|
||||
#
|
||||
# The expected input is a stream of bytes and some interspersed labels.
|
||||
# Comments and '==' segment headers are allowed, but ignored. The emitted code
|
||||
|
@ -22,7 +22,7 @@
|
|||
# The output is the stream of bytes without segment headers or label definitions,
|
||||
# and with label references replaced with numeric values/displacements.
|
||||
#
|
||||
# $ cat x |./bootstrap run apps/survey_baremetal
|
||||
# $ cat x |bootstrap/bootstrap run survey_baremetal
|
||||
# aa bb nn # some computed address
|
||||
# cc dd nn nn nn nn # some computed displacement
|
||||
# ee nn nn nn nn # address right after this instruction
|
||||
|
|
|
@ -5,7 +5,7 @@
|
|||
# b) add an ELF header and segment headers with addresses and offsets correctly filled in
|
||||
#
|
||||
# To build:
|
||||
# $ ./bootstrap translate init.linux [01]*.subx apps/subx-params.subx apps/survey_elf.subx -o apps/survey_elf
|
||||
# $ bootstrap/bootstrap translate [01]*.subx apps/subx-params.subx apps/survey_elf.subx -o apps/survey_elf
|
||||
#
|
||||
# The expected input is a stream of bytes with '==' segment headers, comments
|
||||
# and some interspersed labels.
|
||||
|
@ -23,7 +23,7 @@
|
|||
# The output is the stream of bytes without segment headers or label definitions,
|
||||
# and with label references replaced with numeric values/displacements.
|
||||
#
|
||||
# $ cat x |./bootstrap run apps/survey_elf
|
||||
# $ cat x |bootstrap/bootstrap run survey_elf
|
||||
# ...ELF header bytes...
|
||||
# # ELF header above will specify that code segment begins at this offset
|
||||
# aa bb nn # some computed address
|
||||
|
|
|
@ -2,7 +2,7 @@
|
|||
# all functions starting with 'test-'.
|
||||
#
|
||||
# To build:
|
||||
# $ ./bootstrap translate init.linux [01]*.subx apps/subx-params.subx apps/tests.subx -o apps/tests
|
||||
# $ bootstrap/bootstrap translate [01]*.subx apps/subx-params.subx apps/tests.subx -o apps/tests
|
||||
|
||||
== code
|
||||
# instruction effective address register displacement immediate
|
||||
|
|
Loading…
Reference in New Issue