BSP tree test

[dosrtxon] / src / dos / mouse.asm

diff --git a/src/dos/mouse.asm b/src/dos/mouse.asm
new file mode 100644 (file)
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