diff options
| -rw-r--r-- | Makefile | 8 | ||||
| -rw-r--r-- | ia32/stack.sts | 28 | ||||
| -rw-r--r-- | ia32/syscall.sts | 6 | ||||
| -rw-r--r-- | main.sts | 23 |
4 files changed, 33 insertions, 32 deletions
@@ -1,12 +1,14 @@ -cryptrobber: main.sts strans smack - ./smack $< | ./strans > $@ +.PHONY: cryptrobber clean + +cryptrobber: + ./smack main.sts | ./strans > $@ chmod 0755 $@ smack: smack.c gcc $< -o $@ + strans: strans.c gcc $< -o $@ -.PHONY: clean clean: rm -f smack strans cryptrobber diff --git a/ia32/stack.sts b/ia32/stack.sts index 56f4f07..cf1bd21 100644 --- a/ia32/stack.sts +++ b/ia32/stack.sts @@ -1,18 +1,30 @@ -defasm drop - # 58 ?' ; pop eax +defasm get + # 58 ?' ; pop eax + # 8b ?' # 4 ?' # 84 ?' ; mov eax, [esp + 4 * eax] + # 50 ?' ; push eax +next + +defasm set + # 5b ?' ; pop ebx + # 58 ?' ; pop eax + # 89 ?' # 04 ?' # 9c ?' ; mov [esp + 4 * ebx], eax next +defasm drop + # 58 ?' ; pop eax +next + defasm dup - # ff ?' # 34 ?' # 24 ?' ; push dword [esp] + # ff ?' # 34 ?' # 24 ?' ; push dword [esp] next defasm over - # ff ?' # 74 ?' # 24 ?' # 4 ?' ; push dword [esp + 4] + # ff ?' # 74 ?' # 24 ?' # 4 ?' ; push dword [esp + 4] next defasm swap - # 58 ?' ; pop eax - # 5b ?' ; pop ebx - # 50 ?' ; push eax - # 53 ?' ; push ebx + # 58 ?' ; pop eax + # 5b ?' ; pop ebx + # 50 ?' ; push eax + # 53 ?' ; push ebx next diff --git a/ia32/syscall.sts b/ia32/syscall.sts index 3bce0ff..7ff7480 100644 --- a/ia32/syscall.sts +++ b/ia32/syscall.sts @@ -1,4 +1,4 @@ -defasm quit +defasm sys_exit # b8 ?' # 1 ?. ; mov eax, 1 # 31 ?' # db ?' ; xor ebx, ebx # cd ?' # 80 ?' ; int 0x80 @@ -8,7 +8,7 @@ _data_segment ?choose ?$ ?? _iobuf # 0 ?' _code_segment ?choose -defasm key +defasm sys_read # b8 ?' # 3 ?. ; mov eax, 3 # 31 ?' # db ?' ; xor ebx, ebx # b9 ?' _iobuf ?. ; mov ecx, _iobuf @@ -20,7 +20,7 @@ defasm key # 50 ?' ; push eax next -defasm emit +defasm sys_write # 58 ?' ; pop eax # a2 ?' _iobuf ?. ; mov [_iobuf], al # b8 ?' # 4 ?. ; mov eax, 4 @@ -1,24 +1,11 @@ module ia32/elf/begin.sts -defword keyecho - key if emit fi - drop -exit - -defarr numstr 3 -defvar char - set_entry - 31 char ! - char @ emit - 32 numstr ! - 33 numstr 1 + ! - 34 numstr 2 + ! - numstr @ emit - numstr 1 + @ emit - numstr 2 + @ emit - 35 36 swap emit emit - keyecho + 30 31 32 + 33 0 set 34 1 set 35 2 set + emit + emit + emit quit module ia32/elf/end.sts |