From f7dddf06297f415413760f3bedf00f7297e60cf7 Mon Sep 17 00:00:00 2001
From: RossTheRoss <msattr@gmail.com>
Date: Wed, 8 Apr 2020 11:17:47 -0500
Subject: Forget to add a bunch of things oops

---
 Lab2A.X/Lab2A.s | 123 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 Lab2A.X/Lab2A.s

(limited to 'Lab2A.X/Lab2A.s')

diff --git a/Lab2A.X/Lab2A.s b/Lab2A.X/Lab2A.s
new file mode 100644
index 0000000..407def8
--- /dev/null
+++ b/Lab2A.X/Lab2A.s
@@ -0,0 +1,123 @@
+
+.include "xc.inc"          ; required "boiler-plate" (BP)
+
+;the next two lines set up the actual chip for operation - required
+config __CONFIG2, POSCMOD_EC & I2C1SEL_SEC & IOL1WAY_OFF & OSCIOFNC_ON & FCKSM_CSECME & FNOSC_FRCPLL & SOSCSEL_LPSOSC & WUTSEL_FST & IESO_OFF
+config __CONFIG1, WDTPS_PS1 & FWPSA_PR32 & WINDIS_OFF & FWDTEN_OFF & BKBUG_ON & GWRP_ON & GCP_ON & JTAGEN_OFF
+
+    .bss        ; put the following labels in RAM
+counter:
+    .space 2    ; a variable that takes two bytes (we won?t use
+                ; it for now, but put here to make this a generic
+                ; template to be used later).
+stack:
+    .space  32  ; this will be our stack area, needed for func calls
+
+.text           ; BP (put the following data in ROM(program memory))
+
+;because we are using the C compiler to assemble our code, we need a "_main" label
+;somewhere. (There's a link step that looks for it.)
+.global _main               ;BP
+;your functions go here
+
+_main:
+
+    bclr    CLKDIV,#8                 ;BP
+    nop
+    ;; --- Begin your main program below here ---
+    
+    
+    mov     #0x9fff,w0  
+    mov     w0,AD1PCFG            ; Set all pins to digital mode
+    mov     #0b1111111111111110,w0  
+    mov     w0,TRISA            ; set pin RA0 to output
+    mov     #0x0000,w0  
+    mov     w0,LATA            ; set pin RA0 low
+    call delay_100us
+    call setColor
+    call foreverLoop
+   
+wait_24cycles:
+                     ; 2 cycles for function call
+    repeat #17        ; 1 cycle to load and prep
+    nop              ; 17+1 cycles to execute NOP 18 times
+    return           ; 3 cycles for the return
+    
+wait_32cycles: ; 2
+    repeat #24 ; 1
+    nop	       ; 25+1 cycles = 26
+    return     ; 3
+    
+delay_100us:
+    repeat #1593
+    nop
+    return
+    
+delay_1ms:
+    repeat #15993
+    nop
+    return
+    
+write_bit_stream:
+    call    wait_24cycles     ; 24 cycles
+    clr     LATA              ; set pin RA0 low = 1 cycle
+    call    wait_32cycles     ; 32 cycles
+    inc    LATA               ; set pin RA0 high = 1 cycle
+    return
+
+write_0:      ;2 cycles for function call
+    inc LATA  ;1
+    repeat #3 ;1 for load
+    nop	      ;3+1=4 nop
+    clr LATA  ;1
+    repeat #6 ;1 for load
+    nop       ;1+6=7 nop
+    return    ;3 return
+    
+    
+write_1:      ;2 cycle call
+    inc LATA  ;1
+    repeat #10;1 load
+    nop	      ;1+10=11 nop
+    clr LATA  ;1
+    nop       ;1
+    return    ;3 return
+    
+setColor:
+    ;Set R
+    call write_1
+    call write_1
+    call write_1
+    call write_1
+    call write_1
+    call write_1
+    call write_1
+    call write_1
+    ;Set G
+    call write_1
+    call write_0
+    call write_0
+    call write_1
+    call write_1
+    call write_0
+    call write_1
+    call write_1
+    ;Set B
+    call write_0
+    call write_0
+    call write_0
+    call write_0
+    call write_0
+    call write_0
+    call write_0
+    call write_0
+    
+    return
+    
+foreverLoop:
+;   call write_bit_stream
+    nop
+    bra foreverLoop
+    
+
+.end 
-- 
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