jens/vhdl
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Initial import

Browse Source 
git-svn-id: http://moon:8086/svn/vhdl/trunk@2 cc03376c-175c-47c8-b038-4cd826a8556b
This commit is contained in:
jens
2008-08-23 07:19:47 +00:00
parent 6badec2df7
commit 335cc4e9d2
138 changed files with 40978 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/CPUs/JCpu/tools/lib/cg.inc.jsm
+72
View File
@@ -0,0 +1,72 @@
; -------------------------------------------------
; lcd.inc.jsm
; -------------------------------------------------
; needs xio-address equates for
; reg_cg_char_addr: equ 0xXX ; RW
; reg_cg_line_addr: equ 0xXX ; RW
; reg_cg_data: equ 0xXX ; RW
; reg_cg_ctrl: equ 0xXX ; WO
; needs delay.inc.jsm
; -------------------------------------------------
cg_clr_line: push R0
mov R0, 2
xout (reg_cg_ctrl), R0
pop R0
ret
; -------------------------------------------------
cg_clr_screen: push R0
mov R0, 1
xout (reg_cg_ctrl), R0
pop R0
ret
; -------------------------------------------------
; R0 : char address
; R1 : line address
cg_set_addr: call cg_wait_rdy
xout (reg_cg_line_addr), R1
xout (reg_cg_char_addr), R0
ret
; -------------------------------------------------
; R0 : character
cg_putchar: call cg_wait_rdy
xout (reg_cg_data), R0
ret
; -------------------------------------------------
; R1 : ptr to string
cg_puts: push R0
cg_p_lp: movx R0, (R1)
inc R1
tst R0
jz ex_cgp
call cg_putchar
jmp cg_p_lp
ex_cgp: pop R0
ret
; -------------------------------------------------
; R1 : ptr to string
cg_clr_puts: call cg_clr_line
call cg_puts
ret
; -------------------------------------------------
; R1 : ptr to string
cg_puts_clr: call cg_puts
call cg_clr_line
ret
; -------------------------------------------------
cg_wait_rdy: push R0
cg_wr_lp: xin R0, (reg_hwstat)
and R0, 0x02
jz cg_wr_lp
pop R0
ret
; -------------------------------------------------