X# is a HLA (High Level Assembler) for X86/X64 assembly. In the future other flavors for ARM and other processors are planned.
X# is integrated into Visual Studio and we are working on support for Visual Studio Code as well. X# can also be used using simple text editors such as notepad.
X# creates NASM style assembly ready to assemble with NASM.
Currently X# is used by the C# Open Source Managed Operating System (COSMOS) and parts of it are bound to Cosmos. We are in the process of and nearly finished separating out X# to allow it to operate as a stand alone project to allow users to make their own custom creations using X#.
We have physicallly separated out X# and checked it in here. However there are still a few hard coded links to Cosmos and there is no independent documentation yet, nor are there standalone samples. We are working all of these issues.
namespace DebugStub var .DebugWaitMsg = 'Waiting for debugger connection...' ! %ifndef Exclude_Memory_Based_Console const VidBase = $B8000 function Cls { ESI = #VidBase // End of Video Area // VidBase + 25 * 80 * 2 = B8FA0 while ESI < $B8FA0 { // Text ESI[0] = $00 ESI++ // Colour ESI[0] = $0A ESI++ } } function DisplayWaitMsg { ESI = @..DebugWaitMsg EDI = #VidBase // 10 lines down, 20 cols in (10 * 80 + 20) * 2) EDI + 1640 // Read and copy string till 0 terminator while byte ESI[0] != 0 { AL = ESI[0] EDI[0] = AL ESI++ EDI + 2 } } ! %endif ; Generated at 14-6-2016 12:37:38 DebugWaitMsg db 87, 97, 105, 116, 105, 110, 103, 32, 102, 111, 114, 32, 100, 101, 98, 117, 103, 103, 101, 114, 32, 99, 111, 110, 110, 101, 99, 116, 105, 111, 110, 46, 46, 46, 0 %ifndef Exclude_Memory_Based_Console DebugStub_Const_VidBase equ 753664 DebugStub_Cls: mov dword ESI, DebugStub_Const_VidBase DebugStub_Cls_Block1_Begin: cmp dword ESI, 0xB8FA0 JNB near DebugStub_Cls_Block1_End mov dword [ESI], 0x0 inc dword ESI mov dword [ESI], 0xA inc dword ESI Jmp DebugStub_Cls_Block1_Begin DebugStub_Cls_Block1_End: DebugStub_Cls_Exit: mov dword [static_field__Cosmos_Core_INTs_mLastKnownAddress], DebugStub_Cls_Exit Ret DebugStub_DisplayWaitMsg: mov dword ESI, DebugWaitMsg mov dword EDI, DebugStub_Const_VidBase add dword EDI, 0x668 DebugStub_DisplayWaitMsg_Block1_Begin: cmp byte [ESI], 0x0 JE near DebugStub_DisplayWaitMsg_Block1_End mov byte AL, [ESI] mov byte [EDI], AL inc dword ESI add dword EDI, 0x2 Jmp DebugStub_DisplayWaitMsg_Block1_Begin DebugStub_DisplayWaitMsg_Block1_End: DebugStub_DisplayWaitMsg_Exit: mov dword [static_field__Cosmos_Core_INTs_mLastKnownAddress], DebugStub_DisplayWaitMsg_Exit Ret %endif