Elan eSL Series, User Manual

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Chapter 2
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Architecture eSL/eSLS Series (+ eSLZ000) User’s Manual
2.5.4.3 Data Transfer Programming Examples
Syntax Description
Rd = Rs Rs Register Rd Register
Rd = P[Rs++] ROM address [Rs] Rd Register; then Rs=Rs+1
[Rd] = Rs Rs Register RAM address [Rd]
Rn.l = #0x5a Load #imm8 Rd.l; 0 Rd.h
Rn.h = #0xa5 Load#imm8 Rd.h; Rd.l un-change
Rd = IO[18] Read IO port 18 to Rd Register
IO[0xA] = Rs Write Rs Register to IO port 10 (0xA)
PUSH IO[7] Save the content of IO port 7 on the stack
POP IO[8] Read stack to IO port 8
PUSH Rs Write Rs register to stack
POP Rd Restore Rd from stack
2.5.5 Bit Operation Instruction
These Operations instruction uses a mask value to test or change the value of
individual bits in I/O, RAM or registers.
Space Definitions
Space
Register
RAM
Direct (0x0000 ~ 0x0007)
I/O [0x00 ~ 0x0F]
Bit Operating Definitions
Mnemonic Description Operation
BS Bit b set as 1 Mask OR (b=1; others=0)
BC Bit b clear as 0 Mask AND (b=0; others=1)
BTEST Bit b test as 1 Mask AND (b=1; others=0)
BTG Bit b toggle Mask XOR (b=1; others=0)