LD/ST instructions

Permutations

ld Rd, X 1001 000d dddd 1100 ld Rd, X+ 1001 000d dddd 1101 ld Rd, -X 1001 000d dddd 1110

ld Rd, Y 1000 000d dddd 1000 ld Rd, Y+ 1001 000d dddd 1001 ld Rd, -Y 1001 000d dddd 1010

ld Rd, Z 1000 000d dddd 0000 ld Rd, Z+ 1001 000d dddd 0001 ld Rd, -Z 1001 000d dddd 0010 bit is isX OR predec/postinc

General encoding:

100r 000d dddd rrmm

Where

rrr is the pointer register number
- 111 => X
- `
ddddd is the destination register
mm is the mode
- 0b00 => normal (do not modify ptr register)
- 0b01 => postinc
- 0b10 => predec