SONIX SN8P2711A, User Manual

Page: 21 / 132

SN8P2711A
8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 21
Version 0.1
¾ Example: “@JMP_A” application in SONIX macro file called “MACRO3.H”.
B0MOV A, BUF0 ; “BUF0” is from 0 to 4.
@JMP_A 5 ; The number of the jump table listing is five.
JMP A0POINT ; ACC = 0, jump to A0POINT
JMP A1POINT ; ACC = 1, jump to A1POINT
JMP A2POINT ; ACC = 2, jump to A2POINT
JMP A3POINT ; ACC = 3, jump to A3POINT
JMP A4POINT ; ACC = 4, jump to A4POINT
If the jump table position is across a ROM boundary (0x00FF~0x0100), the “@JMP_A” macro will adjust the jump table
routine begin from next RAM boundary (0x0100).
¾ Example: “@JMP_A” operation.
; Before compiling program.
ROM address
B0MOV A, BUF0 ; “BUF0” is from 0 to 4.
@JMP_A 5 ; The number of the jump table listing is five.
0X00FD JMP A0POINT ; ACC = 0, jump to A0POINT
0X00FE JMP A1POINT ; ACC = 1, jump to A1POINT
0X00FF JMP A2POINT ; ACC = 2, jump to A2POINT
0X0100 JMP A3POINT ; ACC = 3, jump to A3POINT
0X0101 JMP A4POINT ; ACC = 4, jump to A4POINT
; After compiling program.
ROM address
B0MOV A, BUF0 ; “BUF0” is from 0 to 4.
@JMP_A 5 ; The number of the jump table listing is five.
0X0100 JMP A0POINT ; ACC = 0, jump to A0POINT
0X0101 JMP A1POINT ; ACC = 1, jump to A1POINT
0X0102 JMP A2POINT ; ACC = 2, jump to A2POINT
0X0103 JMP A3POINT ; ACC = 3, jump to A3POINT
0X0104 JMP A4POINT ; ACC = 4, jump to A4POINT