From 405c4f104975e5456ce6b28ad31fd996d3f4b657 Mon Sep 17 00:00:00 2001
From: Aleksey Veresov <aleksey@veresov.pro>
Date: Fri, 16 Oct 2020 12:45:33 +0300
Subject: Initial

---
 ia32/syscall.sts | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 ia32/syscall.sts

(limited to 'ia32/syscall.sts')

diff --git a/ia32/syscall.sts b/ia32/syscall.sts
new file mode 100644
index 0000000..58a6ffd
--- /dev/null
+++ b/ia32/syscall.sts
@@ -0,0 +1,50 @@
+defasm quit
+; mov eax, 1
+# b8 ?' # 1 ?.
+; xor ebx, ebx
+# 31 ?' # db ?'
+; int 0x80
+# cd ?' # 80 ?'
+
+_data_segment ?choose
+?$ ?? _io_buffer
+# 0 ?'
+_code_segment ?choose
+
+defasm key
+; mov eax, 3
+# b8 ?' # 3 ?.
+; xor ebx, ebx
+# 31 ?' # db ?'
+; mov ecx, _io_buffer
+# b9 ?' _io_buffer ?.
+; mov edx, 1
+# ba ?' # 1 ?.
+; int 0x80
+# cd ?' # 80 ?'
+; xor ebx, ebx
+# 31 ?' # db ?'
+; mov bl, [_io_buffer]
+# 8a ?' # 1d ?' _io_buffer ?.
+; push ebx
+# 53 ?'
+; push eax
+# 50 ?'
+next
+
+defasm emit
+; pop eax
+# 58 ?'
+; mov [_io_buffer], al
+# a2 ?' _io_buffer ?.
+; mov eax, 4
+# b8 ?' # 4 ?.
+; mov ebx, 1
+# bb ?' # 1 ?.
+; mov ecx, _io_buffer
+# b9 ?' _io_buffer ?.
+; mov edx, 1
+# ba ?' # 1 ?.
+; int 0x80
+# cd ?' # 80 ?'
+next
-- 
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