CP316- Assembly Language Programmingdenethor.wlu.ca/cp316/lectures/assemblybeam.pdf · Introduction to the PIC Assembly Language Program Elements Introduction to the PIC Assembly

Introduction to the PIC Assembly Language

CP316Assembly Language Programming

Terry Sturtevant

Wilfrid Laurier University

November 8, 2017

Terry Sturtevant CP316 Assembly Language Programming

Introduction to the PIC Assembly Language Program Elements


instruction fields→ Section 2.3→ Section 20.0language operands→ Section 1.10→ Section 1.8→ Section 1.9assembler directives→ Section 2.4assembler directives vs. language instructions




instruction fields

→ Section 2.3→ Section 20.0language operands→ Section 1.10→ Section 1.8→ Section 1.9assembler directives→ Section 2.4assembler directives vs. language instructions




instruction fields→ Section 2.3

→ Section 20.0language operands→ Section 1.10→ Section 1.8→ Section 1.9assembler directives→ Section 2.4assembler directives vs. language instructions




instruction fields→ Section 2.3→ Section 20.0language operands

→ Section 1.10→ Section 1.8→ Section 1.9assembler directives→ Section 2.4assembler directives vs. language instructions




instruction fields→ Section 2.3→ Section 20.0language operands→ Section 1.10

→ Section 1.8→ Section 1.9assembler directives→ Section 2.4assembler directives vs. language instructions




instruction fields→ Section 2.3→ Section 20.0language operands→ Section 1.10→ Section 1.8

→ Section 1.9assembler directives→ Section 2.4assembler directives vs. language instructions




instruction fields→ Section 2.3→ Section 20.0language operands→ Section 1.10→ Section 1.8→ Section 1.9

assembler directives→ Section 2.4assembler directives vs. language instructions




instruction fields→ Section 2.3→ Section 20.0language operands→ Section 1.10→ Section 1.8→ Section 1.9assembler directives

→ Section 2.4assembler directives vs. language instructions




instruction fields→ Section 2.3→ Section 20.0language operands→ Section 1.10→ Section 1.8→ Section 1.9assembler directives→ Section 2.4

assembler directives vs. language instructions




instruction fields→ Section 2.3→ Section 20.0language operands→ Section 1.10→ Section 1.8→ Section 1.9assembler directives→ Section 2.4assembler directives vs. language instructions




assembler directivesfor the compilerdo not become lines of codelanguage instructionsfor the microprocessorbecome lines of code




assembler directives

for the compilerdo not become lines of codelanguage instructionsfor the microprocessorbecome lines of code




assembler directivesfor the compiler

do not become lines of codelanguage instructionsfor the microprocessorbecome lines of code




assembler directivesfor the compilerdo not become lines of code

language instructionsfor the microprocessorbecome lines of code




assembler directivesfor the compilerdo not become lines of codelanguage instructions

for the microprocessorbecome lines of code




assembler directivesfor the compilerdo not become lines of codelanguage instructionsfor the microprocessor

become lines of code




assembler directivesfor the compilerdo not become lines of codelanguage instructionsfor the microprocessorbecome lines of code



sample code

h e r e andwf SSPCON2 ,W ; s t u f faddwf TMR0LCOPY, F , A



sample code

h e r e andwf SSPCON2 ,W ; s t u f faddwf TMR0LCOPY, F , A



Instruction fields

hereoptional labelandwfcommandSSPCON2file register,Fdestination (F or W),Aaccess bank; i.e. no BSR;comment after this



Instruction fields

here

optional labelandwfcommandSSPCON2file register,Fdestination (F or W),Aaccess bank; i.e. no BSR;comment after this



Instruction fields

hereoptional label

andwfcommandSSPCON2file register,Fdestination (F or W),Aaccess bank; i.e. no BSR;comment after this



Instruction fields

hereoptional labelandwf

commandSSPCON2file register,Fdestination (F or W),Aaccess bank; i.e. no BSR;comment after this



Instruction fields

hereoptional labelandwfcommand

SSPCON2file register,Fdestination (F or W),Aaccess bank; i.e. no BSR;comment after this



Instruction fields

hereoptional labelandwfcommandSSPCON2

file register,Fdestination (F or W),Aaccess bank; i.e. no BSR;comment after this



Instruction fields

hereoptional labelandwfcommandSSPCON2file register

,Fdestination (F or W),Aaccess bank; i.e. no BSR;comment after this



Instruction fields

hereoptional labelandwfcommandSSPCON2file register,F

destination (F or W),Aaccess bank; i.e. no BSR;comment after this



Instruction fields

hereoptional labelandwfcommandSSPCON2file register,Fdestination (F or W)

,Aaccess bank; i.e. no BSR;comment after this



Instruction fields

hereoptional labelandwfcommandSSPCON2file register,Fdestination (F or W),A

access bank; i.e. no BSR;comment after this



Instruction fields

hereoptional labelandwfcommandSSPCON2file register,Fdestination (F or W),Aaccess bank; i.e. no BSR

;comment after this



Instruction fields

hereoptional labelandwfcommandSSPCON2file register,Fdestination (F or W),Aaccess bank; i.e. no BSR;

comment after this



Instruction fields

hereoptional labelandwfcommandSSPCON2file register,Fdestination (F or W),Aaccess bank; i.e. no BSR;comment after this



Program Template

sample organization→ Section 2.6→ Section 1.5.4looping→ Section 2.9meaning of “end” directive→ Section 2.11 (bad example)



Program Template

sample organization

→ Section 2.6→ Section 1.5.4looping→ Section 2.9meaning of “end” directive→ Section 2.11 (bad example)



Program Template

sample organization→ Section 2.6

→ Section 1.5.4looping→ Section 2.9meaning of “end” directive→ Section 2.11 (bad example)



Program Template

sample organization→ Section 2.6→ Section 1.5.4

looping→ Section 2.9meaning of “end” directive→ Section 2.11 (bad example)



Program Template

sample organization→ Section 2.6→ Section 1.5.4looping

→ Section 2.9meaning of “end” directive→ Section 2.11 (bad example)



Program Template

sample organization→ Section 2.6→ Section 1.5.4looping→ Section 2.9

meaning of “end” directive→ Section 2.11 (bad example)



Program Template

sample organization→ Section 2.6→ Section 1.5.4looping→ Section 2.9meaning of “end” directive

→ Section 2.11 (bad example)



Program Template




Program Template




Instructions

addressing modes→ Section 1.9FSRssample instructions→ Section 1.10result destination operands



Instructions

addressing modes

→ Section 1.9FSRssample instructions→ Section 1.10result destination operands



Instructions

addressing modes→ Section 1.9

FSRssample instructions→ Section 1.10result destination operands



Instructions

addressing modes→ Section 1.9FSRs

sample instructions→ Section 1.10result destination operands



Instructions

addressing modes→ Section 1.9FSRssample instructions

→ Section 1.10result destination operands



Instructions

addressing modes→ Section 1.9FSRssample instructions→ Section 1.10

result destination operands



Instructions

addressing modes→ Section 1.9FSRssample instructions→ Section 1.10result destination operands



Branch Instructions

bra vs. goto→ Section 2.9.2$ = current instruction1 word instructions, except for movff, goto, call,lfsrskip instructions



Branch Instructions

bra vs. goto

→ Section 2.9.2$ = current instruction1 word instructions, except for movff, goto, call,lfsrskip instructions



Branch Instructions

bra vs. goto→ Section 2.9.2

$ = current instruction1 word instructions, except for movff, goto, call,lfsrskip instructions



Branch Instructions

bra vs. goto→ Section 2.9.2$ = current instruction

1 word instructions, except for movff, goto, call,lfsrskip instructions



Branch Instructions

bra vs. goto→ Section 2.9.2$ = current instruction1 word instructions, except for movff, goto, call,lfsr

skip instructions



Branch Instructions

bra vs. goto→ Section 2.9.2$ = current instruction1 word instructions, except for movff, goto, call,lfsrskip instructions



Subroutines

call vs. rcall→ Section 2.9.2return vs. retlwhardware stack→ Section 1.5.4→ Section 4.7subroutines vs. macros



Subroutines

call vs. rcall

→ Section 2.9.2return vs. retlwhardware stack→ Section 1.5.4→ Section 4.7subroutines vs. macros



Subroutines

call vs. rcall→ Section 2.9.2

return vs. retlwhardware stack→ Section 1.5.4→ Section 4.7subroutines vs. macros



Subroutines

call vs. rcall→ Section 2.9.2return vs. retlw

hardware stack→ Section 1.5.4→ Section 4.7subroutines vs. macros



Subroutines

call vs. rcall→ Section 2.9.2return vs. retlwhardware stack

→ Section 1.5.4→ Section 4.7subroutines vs. macros



Subroutines

call vs. rcall→ Section 2.9.2return vs. retlwhardware stack→ Section 1.5.4

→ Section 4.7subroutines vs. macros



Subroutines

call vs. rcall→ Section 2.9.2return vs. retlwhardware stack→ Section 1.5.4→ Section 4.7

subroutines vs. macros



Subroutines

call vs. rcall→ Section 2.9.2return vs. retlwhardware stack→ Section 1.5.4→ Section 4.7subroutines vs. macros



Subroutines (continued)

shadow registers→ Section 4.7.1fast register stack→ Section 4.7.5return FAST




shadow registers

→ Section 4.7.1fast register stack→ Section 4.7.5return FAST




shadow registers→ Section 4.7.1

fast register stack→ Section 4.7.5return FAST




shadow registers→ Section 4.7.1fast register stack

→ Section 4.7.5return FAST




shadow registers→ Section 4.7.1fast register stack→ Section 4.7.5

return FAST











Data in Program Memory

tblrd vs. lfsr→ Section 2.10tblptrl, tblptrh, tblptru




tblrd vs. lfsr

→ Section 2.10tblptrl, tblptrh, tblptru




tblrd vs. lfsr→ Section 2.10

tblptrl, tblptrh, tblptru











Other Instructions

logical instructions→ Section 2.11rotate instructions; ( nc vs. c )→ Section 2.13



Other Instructions

logical instructions

→ Section 2.11rotate instructions; ( nc vs. c )→ Section 2.13



Other Instructions

logical instructions→ Section 2.11

rotate instructions; ( nc vs. c )→ Section 2.13



Other Instructions

logical instructions→ Section 2.11rotate instructions; ( nc vs. c )

→ Section 2.13



Other Instructions

logical instructions→ Section 2.11rotate instructions; ( nc vs. c )→ Section 2.13



Timing Loops

instruction time→ Section 1.7



Timing Loops

instruction time

→ Section 1.7



Timing Loops

instruction time→ Section 1.7


CP316- Assembly Language Programmingdenethor.wlu.ca/cp316/lectures/assemblybeam.pdf · Introduction to the PIC Assembly Language Program Elements Introduction to the PIC Assembly

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