DynV

Appendix C

39 instructions PEP 8



  Spec. Instruct. Significations ways Codes conditions





  instr. address assigned

00000000 STOP Stop program execution

00000001 RETTR Back interruption

00000010 MOVSPA Place SP-A

00000011 MOVFLGA Place NZVC A

0000010a BR unconditional connection i, x

0000011a BRLE connections or less if i, x

0000100a BRLT lower connection if i, x

0000101a BREQ connections if equal i, x

0000110a BRNE connection if not equal i, x

0000111a BRGE connections if greater than or equal to i, x

0001000a BRGT Connecting higher if i, x

0001001a BRV overflow connection if i, x

0001010a BRC Connecting restraint if i, x

0001011a CALL Call subprogramme i, x

OUR 0001100r Supplement 1 to the registry NZ

Negation 0001101r NEGRA registry NZV

0001110r ASLr arithmetic shift left of register NZVC

0001111r ASRr arithmetic shift to the right of the register NZC

0010000r ROLr cyclic shift to the left of the register C

0010001r rorr cyclic shift to the right of the register C

Adjournment 001001nn NOPn no unary operation

NOP 00101aaa interruptions no unary operation i

DECI 00110aaa Interruption input decimal d, n, s, sf, x, sx, sxf NZV

DECO 00111aaa Interruption decimal i, d, n, s, sf, x, sx, sxf

STRO 01000aaa Interruption output channel d, n, sf

Reading character 01001aaa CHARI d, n, s, sf, x, sx, sxf

Output character 01010aaa Charo i, d, n, s, sf, x, sx, sxf

Back 01011nnn Retna a call with local n bytes

01100aaa ADDSP Addition to the stack pointer (SP) i, d, n, s, sf, x, sx, sxf NZVC

SUBSP 01101aaa Subtracting the stack pointer (SP) i, d, n, s, sf, x, sx, sxf NZVC

ADDR 0111raaa Addition to register i, d, n, s, sf, x, sx, sxf NZVC

SUBR 1000raaa subtraction in the register i, d, n, s, sf, x, sx, sxf NZVC

ANDR 1001raaa bitwise ORing the register i, d, n, s, sf, x, sx, sxf NZ

Orr 1010raaa OR bitwise to the register i, d, n, s, sf, x, sx, sxf NZ

Compare 1011raaa CPR register i, d, n, s, sf, x, sx, sxf NZVC

Place 1 Ldr 1100raaa word in register i, d, n, s, sf, x, sx, sxf NZ

1101raaa LDBYTEr Place byte in record (0-7) i, d, n, s, sf, x, sx, sxf NZ

STr 1110raaa Ranger word register 1 d, n, s, sf, x, sx, sxf

1111raaa register STBYTEr Ranger (0-7) in 1 byte d, n, s, sf, x, sx, sxf





8 PEP 8 guidelines



  Guidelines Significations

. BYTE Reserve 1 byte memory with initial value.

. WORD Reserve 1 word memory with initial value.

. BLOCK Reserve a number of bytes set to zero.

. ASCII reserve memory space for a string (eg "String").

. ADDRSS Reserve 1 word memory for a pointer.

. EQUATE Assigns a value to a label.

.END Directive obligatoire de fin d�assemblage qui doit �tre � la fin du code.

. BURN Usually a program starts at zero. With. BURN,





  the program ends at the address specified by the operand.





Important ASCII codes (hexadecimal)



  ASCII Character Codes

00 null character

0A character line on PEP 8 (Enter)

Spacing 20 '

30 First digit'0 '

41 First character uppercase alphabet 'A'

61 First letter of the alphabet lowercase 'a'





� 2006 Ph. Gabrini Page 235