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| author | Kartik Agaram <vc@akkartik.com> | 2018-10-05 19:49:47 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2018-10-05 19:49:47 -0700 |
| commit | 03d50cc83c7c2bebb2b019667b80c1c51f4a8def (patch) | |
| tree | 9c0447e91ac0da2aa0fe983f41c4d95d1787f512 /subx | |
| parent | 7163541bf2ced701d00b16b1cf1eac6a7d019a15 (diff) | |
| download | mu-03d50cc83c7c2bebb2b019667b80c1c51f4a8def.tar.gz | |
4667
Standardize on hyphens in all names. And we'll use colons for namespacing labels in functions.
Diffstat (limited to 'subx')
| -rw-r--r-- | subx/040---tests.cc | 12 | ||||
| -rw-r--r-- | subx/050write_stderr.subx | 2 | ||||
| -rw-r--r-- | subx/051test.subx | 22 | ||||
| -rw-r--r-- | subx/052kernel_string_equal.subx | 131 | ||||
| -rw-r--r-- | subx/053new_segment.subx | 18 | ||||
| -rw-r--r-- | subx/054string_equal.subx | 76 | ||||
| -rwxr-xr-x | subx/apps/crenshaw2-1 | bin | 1923 -> 1923 bytes | |||
| -rw-r--r-- | subx/apps/crenshaw2-1.subx | 18 | ||||
| -rwxr-xr-x | subx/apps/factorial | bin | 1921 -> 1921 bytes | |||
| -rw-r--r-- | subx/apps/factorial.subx | 22 | ||||
| -rw-r--r-- | subx/examples/ex10.subx | 23 | ||||
| -rwxr-xr-x | subx/examples/ex11 | bin | 1125 -> 1125 bytes | |||
| -rw-r--r-- | subx/examples/ex11.subx | 147 | ||||
| -rw-r--r-- | subx/examples/ex12.subx | 4 | ||||
| -rw-r--r-- | subx/examples/ex8.subx | 14 | ||||
| -rw-r--r-- | subx/examples/ex9.subx | 6 | ||||
| -rw-r--r-- | subx/subx.vim | 2 |
17 files changed, 251 insertions, 246 deletions
diff --git a/subx/040---tests.cc b/subx/040---tests.cc index b0bcef38..cf515253 100644 --- a/subx/040---tests.cc +++ b/subx/040---tests.cc @@ -11,34 +11,34 @@ Transform.push_back(create_test_function); % Reg[ESP].u = 0x100; == 0x1 main: - e8/call run_tests/disp32 # 5 bytes + e8/call run-tests/disp32 # 5 bytes f4/halt # 1 byte -test_foo: # offset 7 +test-foo: # offset 7 01 d8 # just some unique instruction: add EBX to EAX c3/return -# check that code in test_foo ran (implicitly called by run_tests) +# check that code in test_foo ran (implicitly called by run-tests) +run: inst: 0x00000007 :(code) void create_test_function(program& p) { if (p.segments.empty()) return; segment& code = p.segments.at(0); - trace(99, "transform") << "-- create 'run_tests'" << end(); + trace(99, "transform") << "-- create 'run-tests'" << end(); vector<line> new_insts; for (int i = 0; i < SIZE(code.lines); ++i) { line& inst = code.lines.at(i); for (int j = 0; j < SIZE(inst.words); ++j) { const word& curr = inst.words.at(j); if (*curr.data.rbegin() != ':') continue; // not a label - if (!starts_with(curr.data, "test_")) continue; + if (!starts_with(curr.data, "test-")) continue; string fn = drop_last(curr.data); new_insts.push_back(call(fn)); } } if (new_insts.empty()) return; // no tests found - code.lines.push_back(label("run_tests")); + code.lines.push_back(label("run-tests")); code.lines.insert(code.lines.end(), new_insts.begin(), new_insts.end()); code.lines.push_back(ret()); } diff --git a/subx/050write_stderr.subx b/subx/050write_stderr.subx index 33234eb4..ed06b7ff 100644 --- a/subx/050write_stderr.subx +++ b/subx/050write_stderr.subx @@ -4,7 +4,7 @@ # op subop mod rm32 base index scale r32 # 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes -write_stderr: # s : (address array byte) -> <void> +write-stderr: # s : (address array byte) -> <void> # prolog 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP diff --git a/subx/051test.subx b/subx/051test.subx index faa5257c..6cc9c541 100644 --- a/subx/051test.subx +++ b/subx/051test.subx @@ -5,7 +5,7 @@ # 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes # print msg to stderr if a != b, otherwise print "." -check_ints_equal: # (a : int, b : int, msg : (address array byte)) -> boolean +check-ints-equal: # (a : int, b : int, msg : (address array byte)) -> boolean # prolog 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP @@ -17,37 +17,37 @@ check_ints_equal: # (a : int, b : int, msg : (address array byte)) -> boolean 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 3/r32/EBX 0xc/disp8 . # copy *(EBP+12) to EBX # if EAX == b/EBX 39/compare 3/mod/direct 0/rm32/EAX . . . 3/r32/EBX . . # compare EAX and EBX - 75/jump-if-unequal $check_ints_equal:else/disp8 + 75/jump-if-unequal $check-ints-equal:else/disp8 # print('.') # push args 68/push "."/imm32 # call - e8/call write_stderr/disp32 + e8/call write-stderr/disp32 # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # return - eb/jump $check_ints_equal:end/disp8 + eb/jump $check-ints-equal:end/disp8 # else: -$check_ints_equal:else: +$check-ints-equal:else: # copy msg into ECX 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 1/r32/ECX 0x10/disp8 . # copy *(EBP+16) to ECX # print(ECX) # push args 51/push-ECX # call - e8/call write_stderr/disp32 + e8/call write-stderr/disp32 # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # print newline # push args 68/push Newline/imm32 # call - e8/call write_stderr/disp32 + e8/call write-stderr/disp32 # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP - # increment Num_test_failures - ff 0/subop/increment 0/mod/indirect 5/rm32/.disp32 . . . Num_test_failures/disp32 # increment *Num_test_failures -$check_ints_equal:end: + # increment Num-test-failures + ff 0/subop/increment 0/mod/indirect 5/rm32/.disp32 . . . Num-test-failures/disp32 # increment *Num-test-failures +$check-ints-equal:end: # restore registers 5b/pop-to-EBX 59/pop-to-ECX @@ -64,7 +64,7 @@ Newline: # data 0a/newline -Num_test_failures: +Num-test-failures: 00 00 00 00 # vim:nowrap:textwidth=0 diff --git a/subx/052kernel_string_equal.subx b/subx/052kernel_string_equal.subx index 21bd9a09..b0b646c5 100644 --- a/subx/052kernel_string_equal.subx +++ b/subx/052kernel_string_equal.subx @@ -21,15 +21,15 @@ # 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes # main: (manual test if this is the last file loaded) - e8/call run_tests/disp32 # 'run_tests' is a function created automatically by SubX. It calls all functions that start with 'test_'. - # exit(Num_test_failures) - 8b/copy 0/mod/indirect 5/rm32/.disp32 . . 3/r32/EBX Num_test_failures/disp32 # copy *Num_test_failures to EBX + e8/call run-tests/disp32 # 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'. + # exit(Num-test-failures) + 8b/copy 0/mod/indirect 5/rm32/.disp32 . . 3/r32/EBX Num-test-failures/disp32 # copy *Num-test-failures to EBX b8/copy . . . . . . . 1/imm32 # copy to EAX cd/syscall 0x80/imm8 # compare a null-terminated ascii string with a more idiomatic length-prefixed byte array # reason for the name: the only place we should have null-terminated ascii strings is from commandline args -kernel_string_equal: # s : null-terminated ascii string, benchmark : length-prefixed ascii string -> EAX : boolean +kernel-string-equal: # s : null-terminated ascii string, benchmark : length-prefixed ascii string -> EAX : boolean # prolog 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP @@ -65,9 +65,9 @@ kernel_string_equal: # s : null-terminated ascii string, benchmark : length-pre # initialize loop counter i into ECX b9/copy . . . . . . . 0/imm32/exit # copy to ECX # while (i/ECX < n/EDX) -$kernel_string_loop: +$kernel-string-equal:loop: 39/compare 3/mod/direct 1/rm32/ECX . . . 2/r32/EDX . . # compare ECX with EDX - 74/jump-if-equal $kernel_string_break/disp8 + 74/jump-if-equal $kernel-string-equal:break/disp8 # c1/EAX, c2/EBX = *s, *benchmark b8/copy 0/imm32 # clear EAX 8a/copy 0/mod/indirect 7/rm32/EDI . . . 0/r32/EAX . . # copy byte at *EDI to lower byte of EAX @@ -75,29 +75,30 @@ $kernel_string_loop: 8a/copy 0/mod/indirect 6/rm32/ESI . . . 3/r32/EBX . . # copy byte at *ESI to lower byte of EBX # if (c1 == 0) return false 3d/compare-EAX 0/imm32 - 74/jump-if-equal $kernel_string_fail/disp8 + 74/jump-if-equal $kernel-string-equal:false/disp8 # if (c1 != c2) return false 39/compare 3/mod/direct 0/rm32/EAX . . . 3/r32/EBX . . # compare EAX with EBX - 75/jump-if-not-equal $kernel_string_fail/disp8 + 75/jump-if-not-equal $kernel-string-equal:false/disp8 # ++s1, ++s2, ++i 41/inc-ECX 46/inc-ESI 47/inc-EDI # end while - eb/jump $kernel_string_loop/disp8 -$kernel_string_break: + eb/jump $kernel-string-equal:loop/disp8 +$kernel-string-equal:break: # if (*s/EDI == 0) return true b8/copy 0/imm32 # clear EAX 8a/copy 0/mod/indirect 7/rm32/EDI . . . 0/r32/EAX . . # copy byte at *EDI to lower byte of EAX 3d/compare-EAX 0/imm32 - 75/jump-if-not-equal $kernel_string_fail/disp8 + 75/jump-if-not-equal $kernel-string-equal:false/disp8 +$kernel-string-equal:true: b8/copy . . . . . . . 1/imm32 # copy to EAX - eb/jump $kernel_string_end/disp8 + eb/jump $kernel-string-equal:end/disp8 # return false -$kernel_string_fail: +$kernel-string-equal:false: b8/copy . . . . . . . 0/imm32 # copy to EAX -$kernel_string_end: +$kernel-string-equal:end: # restore registers 5f/pop-to-EDI 5e/pop-to-ESI @@ -111,151 +112,151 @@ $kernel_string_end: ## tests -test_compare_null_kernel_string_with_empty_array: - # EAX = kernel_string_equal(Null_kernel_string, "") +test-compare-null-kernel-string-with-empty-array: + # EAX = kernel-string-equal(Null-kernel-string, "") # push args 68/push ""/imm32 - 68/push Null_kernel_string/imm32 + 68/push Null-kernel-string/imm32 # call - e8/call kernel_string_equal/disp32 + e8/call kernel-string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 1, msg) + # call check-ints-equal(EAX, 1, msg) # push args - 68/push "F - test_compare_null_kernel_string_with_empty_array"/imm32 + 68/push "F - test-compare-null-kernel-string-with-empty-array"/imm32 68/push 1/imm32/true 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return -test_compare_null_kernel_string_with_non_empty_array: - # EAX = kernel_string_equal(Null_kernel_string, "Abc") +test-compare-null-kernel-string-with-non-empty-array: + # EAX = kernel-string-equal(Null-kernel-string, "Abc") # push args 68/push "Abc"/imm32 - 68/push Null_kernel_string/imm32 + 68/push Null-kernel-string/imm32 # call - e8/call kernel_string_equal/disp32 + e8/call kernel-string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 0, msg) + # call check-ints-equal(EAX, 0, msg) # push args - 68/push "F - test_compare_null_kernel_string_with_non_empty_array"/imm32 + 68/push "F - test-compare-null-kernel-string-with-non-empty-array"/imm32 68/push 0/imm32/false 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return -test_compare_kernel_string_with_equal_array: - # EAX = kernel_string_equal(Abc_kernel_string, "Abc") +test-compare-kernel-string-with-equal-array: + # EAX = kernel-string-equal(Abc-kernel-string, "Abc") # push args 68/push "Abc"/imm32 - 68/push Abc_kernel_string/imm32 + 68/push Abc-kernel-string/imm32 # call - e8/call kernel_string_equal/disp32 + e8/call kernel-string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 1, msg) + # call check-ints-equal(EAX, 1, msg) # push args - 68/push "F - test_compare_kernel_string_with_equal_array"/imm32 + 68/push "F - test-compare-kernel-string-with-equal-array"/imm32 68/push 1/imm32/true 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return -test_compare_kernel_string_with_inequal_array: - # EAX = kernel_string_equal(Abc_kernel_string, "Adc") +test-compare-kernel-string-with-inequal-array: + # EAX = kernel-string-equal(Abc-kernel-string, "Adc") # push args 68/push "Adc"/imm32 - 68/push Abc_kernel_string/imm32 + 68/push Abc-kernel-string/imm32 # call - e8/call kernel_string_equal/disp32 + e8/call kernel-string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 0, msg) + # call check-ints-equal(EAX, 0, msg) # push args - 68/push "F - test_compare_kernel_string_with_equal_array"/imm32 + 68/push "F - test-compare-kernel-string-with-equal-array"/imm32 68/push 0/imm32/false 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return -test_compare_kernel_string_with_empty_array: - # EAX = kernel_string_equal(Abc_kernel_string, "") +test-compare-kernel-string-with-empty-array: + # EAX = kernel-string-equal(Abc-kernel-string, "") # push args 68/push ""/imm32 - 68/push Abc_kernel_string/imm32 + 68/push Abc-kernel-string/imm32 # call - e8/call kernel_string_equal/disp32 + e8/call kernel-string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 0) + # call check-ints-equal(EAX, 0) # push args - 68/push "F - test_compare_kernel_string_with_equal_array"/imm32 + 68/push "F - test-compare-kernel-string-with-equal-array"/imm32 68/push 0/imm32/false 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return -test_compare_kernel_string_with_shorter_array: - # EAX = kernel_string_equal(Abc_kernel_string, "Ab") +test-compare-kernel-string-with-shorter-array: + # EAX = kernel-string-equal(Abc-kernel-string, "Ab") # push args 68/push "Ab"/imm32 - 68/push Abc_kernel_string/imm32 + 68/push Abc-kernel-string/imm32 # call - e8/call kernel_string_equal/disp32 + e8/call kernel-string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 0) + # call check-ints-equal(EAX, 0) # push args - 68/push "F - test_compare_kernel_string_with_shorter_array"/imm32 + 68/push "F - test-compare-kernel-string-with-shorter-array"/imm32 68/push 0/imm32/false 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return -test_compare_kernel_string_with_longer_array: - # EAX = kernel_string_equal(Abc_kernel_string, "Abcd") +test-compare-kernel-string-with-longer-array: + # EAX = kernel-string-equal(Abc-kernel-string, "Abcd") # push args 68/push "Abcd"/imm32 - 68/push Abc_kernel_string/imm32 + 68/push Abc-kernel-string/imm32 # call - e8/call kernel_string_equal/disp32 + e8/call kernel-string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 0) + # call check-ints-equal(EAX, 0) # push args - 68/push "F - test_compare_kernel_string_with_longer_array"/imm32 + 68/push "F - test-compare-kernel-string-with-longer-array"/imm32 68/push 0/imm32/false 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return == data -Null_kernel_string: +Null-kernel-string: 00/null -Abc_kernel_string: +Abc-kernel-string: 41/A 62/b 63/c 00/null # vim:nowrap:textwidth=0 diff --git a/subx/053new_segment.subx b/subx/053new_segment.subx index 8dce1684..fc0dfffc 100644 --- a/subx/053new_segment.subx +++ b/subx/053new_segment.subx @@ -7,11 +7,11 @@ # 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes # main: (manual test if this is the last file loaded) - # EAX = new_segment(0x1000) + # EAX = new-segment(0x1000) # push arg 68/push 0x1000/imm32 # call - e8/call new_segment/disp32 + e8/call new-segment/disp32 # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP @@ -23,18 +23,18 @@ b8/copy . . . . . . . 1/imm32/exit # copy to EAX cd/syscall 0x80/imm8 -new_segment: # len : int -> address +new-segment: # len : int -> address # prolog 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP 53/push-EBX - # copy len to mmap_new_segment.len - # TODO: compute mmap_new_segment+4 before runtime + # copy len to mmap-new-segment.len + # TODO: compute mmap-new-segment+4 before runtime 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX - bb/copy . . . . . . . mmap_new_segment/imm32 # copy to EBX + bb/copy . . . . . . . mmap-new-segment/imm32 # copy to EBX 89/copy 1/mod/*+disp8 3/rm32/EBX . . . 0/r32/EAX 4/disp8 . # copy EAX to *(EBX+4) - # mmap(mmap_new_segment) - bb/copy . . . . . . . mmap_new_segment/imm32 # copy to EBX + # mmap(mmap-new-segment) + bb/copy . . . . . . . mmap-new-segment/imm32 # copy to EBX b8/copy . . . . . . . 0x5a/imm32/mmap # copy to EAX cd/syscall 0x80/imm8 # epilog @@ -45,7 +45,7 @@ new_segment: # len : int -> address == data # various constants used here were found in the Linux sources (search for file mman-common.h) -mmap_new_segment: # type mmap_arg_struct +mmap-new-segment: # type mmap_arg_struct # addr 00 00 00 00 # null # len diff --git a/subx/054string_equal.subx b/subx/054string_equal.subx index 5af6bce8..c66baf99 100644 --- a/subx/054string_equal.subx +++ b/subx/054string_equal.subx @@ -7,13 +7,13 @@ # 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes # main: (manual test if this is the last file loaded) - e8/call run_tests/disp32 # 'run_tests' is a function created automatically by SubX. It calls all functions that start with 'test_'. - # exit(Num_test_failures) - 8b/copy 0/mod/indirect 5/rm32/.disp32 . . 3/r32/EBX Num_test_failures/disp32 # copy *Num_test_failures to EBX + e8/call run-tests/disp32 # 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'. + # exit(Num-test-failures) + 8b/copy 0/mod/indirect 5/rm32/.disp32 . . 3/r32/EBX Num-test-failures/disp32 # copy *Num-test-failures to EBX b8/copy . . . . . . . 1/imm32 # copy to EAX cd/syscall 0x80/imm8 -string_equal: # s : string, benchmark : string -> EAX : boolean +string-equal: # s : string, benchmark : string -> EAX : boolean # prolog 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP @@ -43,38 +43,38 @@ string_equal: # s : string, benchmark : string -> EAX : boolean 8b/copy 0/mod/indirect 0/rm32/EAX . . . 2/r32/EDX . . # copy *EAX to EDX # compare s.length and b.length 39/compare 0/mod/indirect 3/rm32/EBX . . . 2/r32/EDX . . # compare *EBX with EDX - 75/jump-if-not-equal $string_not_equal/disp8 -$string_lengths_equal: + 75/jump-if-not-equal $string-equal:false/disp8 +$string-equal:lengths: # var i/ECX : int = 0 b9/copy . . . . . . . 0/imm32 # copy to ECX # EBX = &b[i] 43/inc-EBX # EAX = &s[i] 40/inc-EAX -$string_equal_loop: +$string-equal:loop: # if i >= s.length return true 39/compare 3/mod/direct 1/rm32/ECX . . . 2/r32/EDX . . # compare ECX with EDX - 7d/jump-if-greater-or-equal $string_equal/disp8 + 7d/jump-if-greater-or-equal $string-equal:true/disp8 # if b[i] != s[i] return false # ESI = s[i] 8b/copy 0/mod/indirect 0/rm32/EAX . . . 6/r32/ESI . . # copy *EAX to ESI # compare b[i] with ESI 39/compare 0/mod/indirect 3/rm32/EBX . . . 6/r32/ESI . . # compare *EBX with ESI - 75/jump-if-not-equal $string_not_equal/disp8 + 75/jump-if-not-equal $string-equal:false/disp8 # ++i 41/inc-ECX 40/inc-EAX 43/inc-EBX # loop - eb/jump $string_equal_loop/disp8 -$string_equal: + eb/jump $string-equal:loop/disp8 +$string-equal:true: # return true b8/copy . . . . . . . 1/imm32 # copy to EAX - eb/jump $string_equal_end/disp8 -$string_not_equal: + eb/jump $string-equal:end/disp8 +$string-equal:false: # return false b8/copy . . . . . . . 0/imm32 # copy to EAX -$string_equal_end: +$string-equal:end: # restore registers 5e/pop-to-ESI 5b/pop-to-EBX @@ -87,82 +87,82 @@ $string_equal_end: ## tests -test_compare_empty_with_empty_string: - # EAX = string_equal("", "") +test-compare-empty-with-empty-string: + # EAX = string-equal("", "") # push args 68/push ""/imm32 68/push ""/imm32 # call - e8/call string_equal/disp32 + e8/call string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 1, msg) + # call check-ints-equal(EAX, 1, msg) # push args - 68/push "F - test_compare_empty_with_empty_string"/imm32 + 68/push "F - test-compare-empty-with-empty-string"/imm32 68/push 1/imm32/true 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return -test_compare_empty_with_non_empty_string: # also checks length-mismatch code path - # EAX = string_equal("", "Abc") +test-compare-empty-with-non-empty-string: # also checks length-mismatch code path + # EAX = string-equal("", "Abc") # push args 68/push "Abc"/imm32 68/push ""/imm32 # call - e8/call string_equal/disp32 + e8/call string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 0, msg) + # call check-ints-equal(EAX, 0, msg) # push args - 68/push "F - test_compare_empty_with_non_empty_string"/imm32 + 68/push "F - test-compare-empty-with-non-empty-string"/imm32 68/push 0/imm32/false 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return -test_compare_equal_strings: - # EAX = string_equal("Abc", "Abc") +test-compare-equal-strings: + # EAX = string-equal("Abc", "Abc") # push args 68/push "Abc"/imm32 68/push "Abc"/imm32 # call - e8/call string_equal/disp32 + e8/call string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 1, msg) + # call check-ints-equal(EAX, 1, msg) # push args - 68/push "F - test_compare_equal_strings"/imm32 + 68/push "F - test-compare-equal-strings"/imm32 68/push 1/imm32/true 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return -test_compare_inequal_strings_equal_lengths: - # EAX = string_equal("Abc", "Adc") +test-compare-inequal-strings-equal-lengths: + # EAX = string-equal("Abc", "Adc") # push args 68/push "Adc"/imm32 68/push "Abc"/imm32 # call - e8/call string_equal/disp32 + e8/call string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 0, msg) + # call check-ints-equal(EAX, 0, msg) # push args - 68/push "F - test_compare_inequal_strings_equal_lengths"/imm32 + 68/push "F - test-compare-inequal-strings-equal-lengths"/imm32 68/push 0/imm32/false 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return diff --git a/subx/apps/crenshaw2-1 b/subx/apps/crenshaw2-1 index 82b37e65..ac62c8b2 100755 --- a/subx/apps/crenshaw2-1 +++ b/subx/apps/crenshaw2-1 Binary files differdiff --git a/subx/apps/crenshaw2-1.subx b/subx/apps/crenshaw2-1.subx index 1f64964d..400a0bfe 100644 --- a/subx/apps/crenshaw2-1.subx +++ b/subx/apps/crenshaw2-1.subx @@ -50,38 +50,38 @@ abort: # s : (address array byte) -> <void> # print out "Error: #{s} expected\n" to stderr error: # s : (address array byte) -> <void> - # write_stderr("Error: ") + # write-stderr("Error: ") # push args 68/push "Error: "/imm32 # call - e8/call write_stderr/disp32 + e8/call write-stderr/disp32 # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP - # write_stderr(s) + # write-stderr(s) # push args ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none . . 4/disp8 . # push *(ESP+4) # call - e8/call write_stderr/disp32 + e8/call write-stderr/disp32 # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP - # write_stderr(" expected") + # write-stderr(" expected") # push args 68/push " expected"/imm32 # call - e8/call write_stderr/disp32 + e8/call write-stderr/disp32 # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP - # write_stderr("\n") + # write-stderr("\n") # push args 68/push Newline/imm32 # call - e8/call write_stderr/disp32 + e8/call write-stderr/disp32 # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # end c3/return -write_stdout: # s : (address array byte) -> <void> +write-stdout: # s : (address array byte) -> <void> # prolog 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP diff --git a/subx/apps/factorial b/subx/apps/factorial index ea130f06..2ca65df6 100755 --- a/subx/apps/factorial +++ b/subx/apps/factorial Binary files differdiff --git a/subx/apps/factorial.subx b/subx/apps/factorial.subx index 99cc751e..c3b63209 100644 --- a/subx/apps/factorial.subx +++ b/subx/apps/factorial.subx @@ -24,30 +24,30 @@ 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP # if (argc > 1) 81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0/disp8 1/imm32 # compare *EBP - 7e/jump-if-lesser-or-equal $run_main/disp8 + 7e/jump-if-lesser-or-equal $run-main/disp8 # and if (argv[1] == "test") # push args 68/push "test"/imm32 ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x8/disp8 . # push *(EBP+8) # call - e8/call kernel_string_equal/disp32 + e8/call kernel-string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP # check result 3d/compare-EAX 1/imm32 - 75/jump-if-not-equal $run_main/disp8 + 75/jump-if-not-equal $run-main/disp8 # then - e8/call run_tests/disp32 - eb/jump $main_exit/disp8 + e8/call run-tests/disp32 + eb/jump $main-exit/disp8 # else EAX = factorial(5) -$run_main: +$run-main: # push arg 68/push 5/imm32 # call e8/call factorial/disp32 # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP -$main_exit: +$main-exit: # exit(EAX) 89/copy 3/mod/direct 3/rm32/EBX . . . 0/r32/EAX . . # copy EAX to EBX b8/copy . . . . . . . 1/imm32 # copy to EAX @@ -84,7 +84,7 @@ $factorial:exit: 5d/pop-to-EBP c3/return -test_factorial: +test-factorial: # factorial(5) # push arg 68/push 5/imm32 @@ -92,13 +92,13 @@ test_factorial: e8/call factorial/disp32 # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP - # check_ints_equal(EAX, 120, failure message) + # check-ints-equal(EAX, 120, failure message) # push args - 68/push "F - test_factorial"/imm32 + 68/push "F - test-factorial"/imm32 68/push 0x78/imm32/expected-120 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP # end diff --git a/subx/examples/ex10.subx b/subx/examples/ex10.subx index f2eadc5d..43b0e1d1 100644 --- a/subx/examples/ex10.subx +++ b/subx/examples/ex10.subx @@ -12,7 +12,7 @@ # op subop mod rm32 base index scale r32 # 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes -# main: return argv_equal(argv[1], argv[2]) +# main: return argv-equal(argv[1], argv[2]) # At the start of a SubX program: # argc: *ESP # argv[0]: *(ESP+4) @@ -20,13 +20,13 @@ # ... # prolog 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP - # call argv_equal(argv[1], argv[2]) + # call argv-equal(argv[1], argv[2]) # push argv[2] ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12) # push argv[1] ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x8/disp8 . # push *(EBP+8) # call - e8/call argv_equal/disp32 + e8/call argv-equal/disp32 # exit(EAX) $exit: 89/copy 3/mod/direct 3/rm32/EBX . . . 0/r32/EAX . . # copy EAX to EBX @@ -35,12 +35,12 @@ $exit: # compare two null-terminated ascii strings # reason for the name: the only place we should have null-terminated ascii strings is from commandline args -argv_equal: # (s1, s2) : null-terminated ascii strings -> EAX : boolean +argv-equal: # (s1, s2) : null-terminated ascii strings -> EAX : boolean # initialize s1 (ECX) and s2 (EDX) 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none . 1/r32/ECX 4/disp8 . # copy *(ESP+4) to ECX 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none . 2/r32/EDX 8/disp8 . # copy *(ESP+8) to EDX # while (true) -$argv_loop: +$argv-equal:loop: # c1/EAX, c2/EBX = *s1, *s2 b8/copy 0/imm32 # clear EAX 8a/copy 0/mod/indirect 1/rm32/ECX . . . 0/r32/EAX . . # copy byte at *ECX to lower byte of EAX @@ -48,23 +48,24 @@ $argv_loop: 8a/copy 0/mod/indirect 2/rm32/EDX . . . 3/r32/EBX . . # copy byte at *EDX to lower byte of EBX # if (c1 == 0) break 3d/compare-EAX 0/imm32 - 74/jump-if-equal $argv_break/disp8 + 74/jump-if-equal $argv-equal:break/disp8 # if (c1 != c2) return false 39/compare 3/mod/direct 0/rm32/EAX . . . 3/r32/EBX . . # compare EAX with EBX - 75/jump-if-not-equal $argv_fail/disp8 + 75/jump-if-not-equal $argv-equal:false/disp8 # ++s1, ++s2 41/inc-ECX 42/inc-EDX # end while - eb/jump $argv_loop/disp8 -$argv_break: + eb/jump $argv-equal:loop/disp8 +$argv-equal:break: # if (c2 == 0) return true 81 7/subop/compare 3/mod/direct 3/rm32/EBX . . . . . 0/imm32 # compare EBX - 75/jump-if-not-equal $argv_fail/disp8 + 75/jump-if-not-equal $argv-equal:false/disp8 +$argv-equal:success: b8/copy . . . . . . . 1/imm32 # copy to EAX c3/return # return false -$argv_fail: +$argv-equal:false: b8/copy . . . . . . . 0/imm32 # copy to EAX c3/return diff --git a/subx/examples/ex11 b/subx/examples/ex11 index cf0d0c85..f4329e00 100755 --- a/subx/examples/ex11 +++ b/subx/examples/ex11 Binary files differdiff --git a/subx/examples/ex11.subx b/subx/examples/ex11.subx index defab46b..2ffdaad3 100644 --- a/subx/examples/ex11.subx +++ b/subx/examples/ex11.subx @@ -21,7 +21,7 @@ # 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes # main: - e8/call run_tests/disp32 # 'run_tests' is a function created automatically by SubX. It calls all functions that start with 'test_'. + e8/call run-tests/disp32 # 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'. # exit(EAX) 89/copy 3/mod/direct 3/rm32/EBX . . . 0/r32/EAX . . # copy EAX to EBX b8/copy . . . . . . . 1/imm32 # copy to EAX @@ -29,7 +29,7 @@ # compare a null-terminated ascii string with a more idiomatic length-prefixed byte array # reason for the name: the only place we should have null-terminated ascii strings is from commandline args -kernel_string_equal: # s : null-terminated ascii string, benchmark : length-prefixed ascii string -> EAX : boolean +kernel-string-equal: # s : null-terminated ascii string, benchmark : length-prefixed ascii string -> EAX : boolean # prolog 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP @@ -64,9 +64,9 @@ kernel_string_equal: # s : null-terminated ascii string, benchmark : length-pre # initialize loop counter i into ECX b9/copy . . . . . . . 0/imm32/exit # copy to ECX # while (i/ECX < n/EDX) -$kernel_string_loop: +$kernel-string-equal:loop: 39/compare 3/mod/direct 1/rm32/ECX . . . 2/r32/EDX . . # compare ECX with EDX - 74/jump-if-equal $kernel_string_break/disp8 + 74/jump-if-equal $kernel-string-equal:break/disp8 # c1/EAX, c2/EBX = *s, *benchmark b8/copy 0/imm32 # clear EAX 8a/copy 0/mod/indirect 7/rm32/EDI . . . 0/r32/EAX . . # copy byte at *EDI to lower byte of EAX @@ -74,29 +74,30 @@ $kernel_string_loop: 8a/copy 0/mod/indirect 6/rm32/ESI . . . 3/r32/EBX . . # copy byte at *ESI to lower byte of EBX # if (c1 == 0) return false 3d/compare-EAX 0/imm32 - 74/jump-if-equal $kernel_string_fail/disp8 + 74/jump-if-equal $kernel-string-equal:false/disp8 # if (c1 != c2) return false 39/compare 3/mod/direct 0/rm32/EAX . . . 3/r32/EBX . . # compare EAX with EBX - 75/jump-if-not-equal $kernel_string_fail/disp8 + 75/jump-if-not-equal $kernel-string-equal:false/disp8 # ++s1, ++s2, ++i 41/inc-ECX 46/inc-ESI 47/inc-EDI # end while - eb/jump $kernel_string_loop/disp8 -$kernel_string_break: + eb/jump $kernel-string-equal:loop/disp8 +$kernel-string-equal:break: # if (*s/EDI == 0) return true b8/copy 0/imm32 # clear EAX 8a/copy 0/mod/indirect 7/rm32/EDI . . . 0/r32/EAX . . # copy byte at *EDI to lower byte of EAX 81 7/subop/compare 3/mod/direct 0/rm32/EAX . . . . . 0/imm32 # compare EAX - 75/jump-if-not-equal $kernel_string_fail/disp8 + 75/jump-if-not-equal $kernel-string-equal:false/disp8 b8/copy . . . . . . . 1/imm32 # copy to EAX - eb/jump $kernel_string_end/disp8 +$kernel-string-equal:true: + eb/jump $kernel-string-equal:end/disp8 # return false -$kernel_string_fail: +$kernel-string-equal:false: b8/copy . . . . . . . 0/imm32 # copy to EAX -$kernel_string_end: +$kernel-string-equal:end: # restore registers 5f/pop-to-EDI 5e/pop-to-ESI @@ -110,142 +111,142 @@ $kernel_string_end: ## tests -test_compare_null_kernel_string_with_empty_array: - # EAX = kernel_string_equal(Null_kernel_string, "") +test-compare-null-kernel-string-with-empty-array: + # EAX = kernel-string-equal(Null-kernel-string, "") # push args 68/push ""/imm32 - 68/push Null_kernel_string/imm32 + 68/push Null-kernel-string/imm32 # call - e8/call kernel_string_equal/disp32 + e8/call kernel-string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 1, msg) + # call check-ints-equal(EAX, 1, msg) # push args - 68/push "F - test_compare_null_kernel_string_with_empty_array"/imm32 + 68/push "F - test-compare-null-kernel-string-with-empty-array"/imm32 68/push 1/imm32/true 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return -test_compare_null_kernel_string_with_non_empty_array: - # EAX = kernel_string_equal(Null_kernel_string, "Abc") +test-compare-null-kernel-string-with-non-empty-array: + # EAX = kernel-string-equal(Null-kernel-string, "Abc") # push args 68/push "Abc"/imm32 - 68/push Null_kernel_string/imm32 + 68/push Null-kernel-string/imm32 # call - e8/call kernel_string_equal/disp32 + e8/call kernel-string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 0, msg) + # call check-ints-equal(EAX, 0, msg) # push args - 68/push "F - test_compare_null_kernel_string_with_non_empty_array"/imm32 + 68/push "F - test-compare-null-kernel-string-with-non-empty-array"/imm32 68/push 0/imm32/false 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return -test_compare_kernel_string_with_equal_array: - # EAX = kernel_string_equal(Abc_kernel_string, "Abc") +test-compare-kernel-string-with-equal-array: + # EAX = kernel-string-equal(Abc-kernel-string, "Abc") # push args 68/push "Abc"/imm32 - 68/push Abc_kernel_string/imm32 + 68/push Abc-kernel-string/imm32 # call - e8/call kernel_string_equal/disp32 + e8/call kernel-string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 1, msg) + # call check-ints-equal(EAX, 1, msg) # push args - 68/push "F - test_compare_kernel_string_with_equal_array"/imm32 + 68/push "F - test-compare-kernel-string-with-equal-array"/imm32 68/push 1/imm32/true 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return -test_compare_kernel_string_with_inequal_array: - # EAX = kernel_string_equal(Abc_kernel_string, "Adc") +test-compare-kernel-string-with-inequal-array: + # EAX = kernel-string-equal(Abc-kernel-string, "Adc") # push args 68/push "Adc"/imm32 - 68/push Abc_kernel_string/imm32 + 68/push Abc-kernel-string/imm32 # call - e8/call kernel_string_equal/disp32 + e8/call kernel-string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 0, msg) + # call check-ints-equal(EAX, 0, msg) # push args - 68/push "F - test_compare_kernel_string_with_equal_array"/imm32 + 68/push "F - test-compare-kernel-string-with-equal-array"/imm32 68/push 0/imm32/false 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return -test_compare_kernel_string_with_empty_array: - # EAX = kernel_string_equal(Abc_kernel_string, "") +test-compare-kernel-string-with-empty-array: + # EAX = kernel-string-equal(Abc-kernel-string, "") # push args 68/push ""/imm32 - 68/push Abc_kernel_string/imm32 + 68/push Abc-kernel-string/imm32 # call - e8/call kernel_string_equal/disp32 + e8/call kernel-string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 0) + # call check-ints-equal(EAX, 0) # push args - 68/push "F - test_compare_kernel_string_with_equal_array"/imm32 + 68/push "F - test-compare-kernel-string-with-equal-array"/imm32 68/push 0/imm32/false 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return -test_compare_kernel_string_with_shorter_array: - # EAX = kernel_string_equal(Abc_kernel_string, "Ab") +test-compare-kernel-string-with-shorter-array: + # EAX = kernel-string-equal(Abc-kernel-string, "Ab") # push args 68/push "Ab"/imm32 - 68/push Abc_kernel_string/imm32 + 68/push Abc-kernel-string/imm32 # call - e8/call kernel_string_equal/disp32 + e8/call kernel-string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 0) + # call check-ints-equal(EAX, 0) # push args - 68/push "F - test_compare_kernel_string_with_shorter_array"/imm32 + 68/push "F - test-compare-kernel-string-with-shorter-array"/imm32 68/push 0/imm32/false 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return -test_compare_kernel_string_with_longer_array: - # EAX = kernel_string_equal(Abc_kernel_string, "Abcd") +test-compare-kernel-string-with-longer-array: + # EAX = kernel-string-equal(Abc-kernel-string, "Abcd") # push args 68/push "Abcd"/imm32 - 68/push Abc_kernel_string/imm32 + 68/push Abc-kernel-string/imm32 # call - e8/call kernel_string_equal/disp32 + e8/call kernel-string-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # call check_ints_equal(EAX, 0) + # call check-ints-equal(EAX, 0) # push args - 68/push "F - test_compare_kernel_string_with_longer_array"/imm32 + 68/push "F - test-compare-kernel-string-with-longer-array"/imm32 68/push 0/imm32/false 50/push-EAX # call - e8/call check_ints_equal/disp32 + e8/call check-ints-equal/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP c3/return @@ -253,7 +254,7 @@ test_compare_kernel_string_with_longer_array: ## helpers # print msg to stderr if a != b, otherwise print "." -check_ints_equal: # (a : int, b : int, msg : (address array byte)) -> boolean +check-ints-equal: # (a : int, b : int, msg : (address array byte)) -> boolean # prolog 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP @@ -265,35 +266,35 @@ check_ints_equal: # (a : int, b : int, msg : (address array byte)) -> boolean 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 3/r32/EBX 0xc/disp8 . # copy *(EBP+12) to EBX # if EAX == b/EBX 39/compare 3/mod/direct 0/rm32/EAX . . . 3/r32/EBX . . # compare EAX and EBX - 75/jump-if-unequal $check_ints_equal:else/disp8 + 75/jump-if-unequal $check-ints-equal:else/disp8 # print('.') # push args 68/push "."/imm32 # call - e8/call write_stderr/disp32 + e8/call write-stderr/disp32 # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # return - eb/jump $check_ints_equal:end/disp8 + eb/jump $check-ints-equal:end/disp8 # else: -$check_ints_equal:else: +$check-ints-equal:else: # copy msg into ECX 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 1/r32/ECX 0x10/disp8 . # copy *(EBP+16) to ECX # print(ECX) # push args 51/push-ECX # call - e8/call write_stderr/disp32 + e8/call write-stderr/disp32 # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # print newline # push args 68/push Newline/imm32 # call - e8/call write_stderr/disp32 + e8/call write-stderr/disp32 # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP -$check_ints_equal:end: +$check-ints-equal:end: # restore registers 5b/pop-to-EBX 59/pop-to-ECX @@ -302,7 +303,7 @@ $check_ints_equal:end: 5d/pop-to-EBP c3/return -write_stderr: # s : (address array byte) -> <void> +write-stderr: # s : (address array byte) -> <void> # prolog 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP @@ -340,10 +341,10 @@ Newline: # data 0a/newline -# for kernel_string_equal tests -Null_kernel_string: +# for kernel-string-equal tests +Null-kernel-string: 00/null -Abc_kernel_string: +Abc-kernel-string: 41/A 62/b 63/c 00/null # vim:nowrap:textwidth=0 diff --git a/subx/examples/ex12.subx b/subx/examples/ex12.subx index d7c2e868..1db660ed 100644 --- a/subx/examples/ex12.subx +++ b/subx/examples/ex12.subx @@ -12,7 +12,7 @@ # 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes # mmap(0x1000) - bb/copy . . . . . . . mmap_new_segment/imm32 # copy to EBX + bb/copy . . . . . . . mmap-new-segment/imm32 # copy to EBX b8/copy . . . . . . . 0x5a/imm32/mmap # copy to EAX cd/syscall 0x80/imm8 @@ -26,7 +26,7 @@ == data # various constants used here were found in the Linux sources (search for file mman-common.h) -mmap_new_segment: # type mmap_arg_struct +mmap-new-segment: # type mmap_arg_struct # addr 00 00 00 00 # null # len diff --git a/subx/examples/ex8.subx b/subx/examples/ex8.subx index ccc6dcb9..2726eea9 100644 --- a/subx/examples/ex8.subx +++ b/subx/examples/ex8.subx @@ -20,11 +20,11 @@ # 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes # prolog 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP - # call ascii_length(argv[1]) + # call ascii-length(argv[1]) # push args ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x8/disp8 . # push *(EBP+8) # call - e8/call ascii_length/disp32 + e8/call ascii-length/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP @@ -33,24 +33,24 @@ b8/copy . . . . . . . 1/imm32/exit # copy to EAX cd/syscall 0x80/imm8 -ascii_length: # (s) +ascii-length: # (s) # initialize s (EDX) 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 2/r32/EDX 4/disp8 # copy *(ESP+4) to EDX # var result = 0 (EAX) b8/copy . . . . . . . 0/imm32 # copy to EAX -$ascii_length_loop: +$ascii-length-loop: # var c = *s (ECX) 8a/copy 0/mod/* 2/rm32/EDX . . . 1/r32/ECX . . # copy byte at *EDX to lower byte of ECX # if c == '\0' break 81 7/subop/compare 3/mod/direct 1/rm32/ECX . . . . . 0/imm32 # compare ECX - 74/jump-if-equal $ascii_length_ret/disp8 + 74/jump-if-equal $ascii-length-ret/disp8 # ++s 81 0/subop/add 3/mod/direct 2/rm32/EDX . . . . . 1/imm32 # add to EDX # ++result 40/inc-EAX # loop - eb/jump $ascii_length_loop/disp8 -$ascii_length_ret: + eb/jump $ascii-length-loop/disp8 +$ascii-length-ret: # return (result in EAX) c3/return diff --git a/subx/examples/ex9.subx b/subx/examples/ex9.subx index c5711ef1..7e4132b2 100644 --- a/subx/examples/ex9.subx +++ b/subx/examples/ex9.subx @@ -22,13 +22,13 @@ # 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes # prolog 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP - # call ascii_difference(argv[1], argv[2]) + # call ascii-difference(argv[1], argv[2]) # push argv[2] ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0xc/disp8 . # push *(EBP+12) # push argv[1] ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x8/disp8 . # push *(EBP+8) # call - e8/call ascii_difference/disp32 + e8/call ascii-difference/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP # exit(EAX) @@ -36,7 +36,7 @@ b8/copy . . . . . . . 1/imm32/exit # copy to EAX cd/syscall 0x80/imm8 -ascii_difference: # (s1, s2) : null-terminated ascii strings +ascii-difference: # (s1, s2) : null-terminated ascii strings # a = first letter of s1 (ECX) 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 0/r32/EAX 4/disp8 . # copy *(ESP+4) to EAX 8b/copy 0/mod/indirect 0/rm32/EAX . . . 0/r32/EAX . . # copy *EAX to EAX diff --git a/subx/subx.vim b/subx/subx.vim index 454c9454..89d06049 100644 --- a/subx/subx.vim +++ b/subx/subx.vim @@ -15,6 +15,8 @@ set cpo&vim setlocal formatoptions-=t " allow long lines setlocal formatoptions+=c " but comments should still wrap +setlocal iskeyword+=- + syntax match subxComment /#.*$/ | highlight link subxComment Comment syntax match subxSalientComment /##.*$/ | highlight link subxSalientComment SalientComment set comments-=:# |