8 Bit Loads
| Mnemonic | Bytes | T-States | Description |
|---|---|---|---|
| ld r,r2 | 1 | 4 | Copies contents of r2 to r |
| ld r,n | 2 | 7 | Loads r with n |
| ld r,(hl) | 1 | 7 | Loads r with (hl) |
| ld (hl),r | 1 | 7 | Loads (hl) with r |
| ld (hl),n | 2 | 10 | Loads (hl) with n |
| ld a,(bc) | 1 | 7 | Loads (bc) with a |
| ld a,(de) | 1 | 7 | Loads (de) with a |
| ld a,(nn) | 3 | 13 | Loads a with nn |
| ld (bc),a | 1 | 7 | Loads (bc) with a |
| ld (de),a | 1 | 7 | Loads (de) with a |
| ld (nn),a | 3 | 17 | Loads (nn) with a |
| ld a,i | 2 | 9 | Loads a with the value of the interrupt vector register |
| ld i,a | 2 | 9 | Loads the interrupt vector register with the value of a |
| ld a,r | 2 | 9 | Loads a with the value of the dynamic refresh register |
| ld r,a | 2 | 9 | Loads the dynamic refresh register with a |
16 Bit Loads
| Mnemonic | Bytes | T-States | Description |
|---|---|---|---|
| ld dd,nn | 3 | 10 | Loads dd with nn |
| ld hl,(nn) | 3 | 16 | Loads hl with (nn) Note: (nn + 1) -> h; (nn) -> l |
| ld dd,(nn) | 3 | 16 | Loads dd with (nn) Note: (nn + 1) -> ddH; (nn) -> ddL |
| ld (nn),hl | 3 | 16 | Loads (nn) with hl Note: h -> (nn + 1); l -> (nn) |
| ld (nn),dd | 4 | 20 | Loads (nn) with dd Note: ddH -> (nn + 1); ddL -> (nn) |
| ld sp,hl | 1 | 6 | Loads the stack pointer with the value of hl |
Index Register Loads
| Mnemonic | Bytes | T-States | Description |
|---|---|---|---|
| ld r,(ii + d) | 3 | 19 | Loads r with (ii + d) |
| ld (ii + d),r | 3 | 19 | Loads (ii + d) with r |
| ld (ii + d),n | 4 | 19 | Loads (ii + d) with n |
| ld ii,nn | 4 | 14 | Loads ii with nn |
| ld ii,(nn) | 4 | 20 | Loads ii with (nn) Note: (nn + 1) -> iiH; (nn) -> iiL |
| ld (nn),ii | 4 | 20 | Loads (nn) with ii Note: iiH -> (nn + 1); iiL -> (nn) |
| ld sp,ii | 2 | 10 | Loads the stack pointer with the value of ii |
Exchange Instructions
| Mnemonic | Bytes | T-States | Description |
|---|---|---|---|
| ex de,hl | 1 | 4 | Exchanges the contents of de and hl |
| ex af,af' | 1 | 4 | Exchanges the accumulator and flag register with the shadow accumulator and flag register |
| exx | 1 | 4 | Exchanges bc, de and hl with bc', de' and hl' |
| ex (sp),hl | 1 | 19 | Exchanges the value on the top of the stack with the value in hl |
| ex (sp),ii | 2 | 23 | Exchanges the value on the top of the stack with the value in ii |
