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git-svn-id: http://moon:8086/svn/vhdl/trunk@5 cc03376c-175c-47c8-b038-4cd826a8556b
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jens
2008-08-23 08:20:30 +00:00
parent bfbeba5129
commit d3bd08bb52
160 changed files with 56260 additions and 0 deletions
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lib/jasm/uart.inc.jsm
+32
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; -------------------------------------------------
; uart.inc.jsm
; -------------------------------------------------
; needs xmem-address definition for
; - uart_status (Status register)
; - uart_data (Data register)
; -------------------------------------------------
; sout
; -------------------------------------------------
; R0 = input
sout: push R1
sout1: xin R1, (uart_status)
and R1, 0x02
jnz sout1
xout (uart_data), R0
pop R1
ret
; -------------------------------------------------
; sin
; -------------------------------------------------
; R0 = output
sin: push R1
sin1: xin R1, (uart_status)
and R1, 0x10
jz sin1
xin R0, (uart_data)
pop R1
ret
; -------------------------------------------------