diff options
Diffstat (limited to '')
| -rw-r--r-- | Lab2A.X/Lab2A.s (renamed from Lab 2.X/Lab2A.s) | 246 |
1 files changed, 123 insertions, 123 deletions
diff --git a/Lab 2.X/Lab2A.s b/Lab2A.X/Lab2A.s index fa35d55..407def8 100644 --- a/Lab 2.X/Lab2A.s +++ b/Lab2A.X/Lab2A.s @@ -1,123 +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
+ +.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 |