X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=dosrtxon;a=blobdiff_plain;f=src%2Fdos%2Fmouse.asm;fp=src%2Fdos%2Fmouse.asm;h=c82e7fdaa3eaa4195221a90c498746b4fbeb4b3b;hp=0000000000000000000000000000000000000000;hb=ac1dd983cb211904ca6c74ca28ceb5e83aa09527;hpb=4621a049a4889c5a6845a08e9c0a4d6634ab8556

diff --git a/src/dos/mouse.asm b/src/dos/mouse.asm
new file mode 100644
index 0000000..c82e7fd
--- /dev/null
+++ b/src/dos/mouse.asm
@@ -0,0 +1,193 @@
+; vi:set filetype=nasm:
+; foo_ are watcom functions, _foo are djgpp functions
+
+QUERY equ 0
+SHOW equ 1
+HIDE equ 2
+READ equ 3
+WRITE equ 4
+PIXRATE equ 15
+XLIM equ 7
+YLIM equ 8
+
+PUSHA_EAX_OFFS equ 28
+PUSHA_ECX_OFFS equ 20
+PUSHA_EDX_OFFS equ 16
+
+	section .text
+	bits 32
+
+; int have_mouse(void)
+	global have_mouse_
+	global _have_mouse
+have_mouse_:
+_have_mouse:
+	pusha
+	mov ax, QUERY
+	int 0x33
+	and eax, 0xffff
+	mov [esp + PUSHA_EAX_OFFS], eax
+	popa
+	ret
+
+; void show_mouse(int show)
+	global show_mouse_
+show_mouse_:
+	pusha
+	test ax, ax
+	mov ax, HIDE
+	jz .skip
+	mov ax, SHOW
+.skip:	int 0x33
+	popa
+	ret
+
+	global _show_mouse
+_show_mouse:
+	push ebp
+	mov ebp, esp
+	push ebx
+	push esi
+	push edi
+	mov ax, [ebp + 8]
+	test ax, ax
+	mov ax, HIDE
+	jz .skip
+	mov ax, SHOW
+.skip:	int 0x33
+	pop edi
+	pop esi
+	pop ebx
+	pop ebp
+	ret
+
+; int read_mouse(int *xp, int *yp)
+	global read_mouse_
+read_mouse_:
+	pusha
+	mov esi, eax	; xp
+	mov edi, edx	; yp
+	mov ax, READ
+	int 0x33
+	xor eax, eax
+	and ecx, 0xffff
+	and edx, 0xffff
+	mov ax, bx
+	mov [esp + PUSHA_EAX_OFFS], eax
+	mov [esi], ecx
+	mov [edi], edx
+	popa
+	ret
+
+	global _read_mouse
+_read_mouse:
+	push ebp
+	mov ebp, esp
+	push ebx
+	push esi
+	push edi
+	mov ax, READ
+	int 0x33
+	xor eax, eax
+	mov ax, bx
+	and ecx, 0xffff
+	mov ebx, [ebp + 8]
+	mov [ebx], ecx
+	and edx, 0xffff
+	mov ebx, [ebp + 12]
+	mov [ebx], edx
+	pop edi
+	pop esi
+	pop ebx
+	pop ebp
+	ret
+
+; void set_mouse(int x, int y)
+	global set_mouse_
+set_mouse_:
+	pusha
+	mov cx, ax
+	mov ax, WRITE
+	int 0x33
+	popa
+	ret
+	
+	global _set_mouse
+_set_mouse:
+	push ebp
+	mov ebp, esp
+	push ebx
+	push esi
+	push edi
+	mov ax, WRITE
+	mov cx, [ebp + 8]
+	mov dx, [ebp + 12]
+	int 0x33
+	pop edi
+	pop esi
+	pop ebx
+	pop ebp
+	ret
+
+; void set_mouse_limits(int xmin, int ymin, int xmax, int ymax)
+	global set_mouse_limits_
+set_mouse_limits_:
+	pusha
+	mov cx, ax
+	mov dx, bx
+	mov ax, XLIM
+	int 0x33
+	mov ax, YLIM
+	mov cx, [esp + PUSHA_EDX_OFFS]
+	mov dx, [esp + PUSHA_ECX_OFFS]
+	int 0x33
+	popa
+	ret
+
+	global _set_mouse_limits
+_set_mouse_limits:
+	push ebp
+	mov ebp, esp
+	push ebx
+	push esi
+	push edi
+	mov ax, XLIM
+	mov cx, [ebp + 8]
+	mov dx, [ebp + 16]
+	int 0x33
+	mov ax, YLIM
+	mov cx, [ebp + 12]
+	mov dx, [ebp + 20]
+	int 0x33
+	pop edi
+	pop esi
+	pop ebx
+	pop ebp
+	ret
+
+; void set_mouse_rate(int xrate, int yrate)
+	global set_mouse_rate_
+set_mouse_rate_:
+	pusha
+	mov cx, ax
+	mov ax, PIXRATE
+	int 0x33
+	popa
+	ret
+
+	global _set_mouse_rate
+_set_mouse_rate:
+	push ebp
+	mov ebp, esp
+	push ebx
+	push esi
+	push edi
+	mov ax, PIXRATE
+	mov cx, [esp + 4]
+	mov dx, [esp + 8]
+	int 0x33
+	pop edi
+	pop esi
+	pop ebx
+	pop ebp
+	ret