16 bit Assembly

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ADC   - Add with Carry Instruction

The ADC instruction adds the second value to the first register and sets the Overflow and Carry flags when required after the operation.
This command has 3 parts, Instruction, Register, then either a Register, Immediate value or a memory address.

Assembly Sample	Description	16 bit Machine Code
ADC AL, 0x30	;  8 bit immediate to AL Register	14 30
ADC CL, 0x30	;  8 bit immediate to 8 bit Register	80 D1 30
ADC AX, 0x30	;  8 bit immediate to AX Register	83 D0 30
ADC AX, 0x3030	;  16 bit immediate to AX Register	15 30 30
ADC CX, 0x30	;  8 bit immediate to 16 bit Register	83 D1 30
ADC CX, 0x3030	;  16 bit immediate to a Register	81 D1 30 30
ADC [BX], 0x30	;  8 bit immediate to memory address	83 17 30
ADC [BX], 0x3030	;  16 bit immediate to memory address	81 17 30 30
ADC [BX], AX	;  16 bit Register to memory address	11 07
ADC [BX+2], 0x30	;  8 bit immediate to memory address   with offset	83 57 02 30
ADC [BX+2], 0x3030	;  16 bit immediate to memory address   with offset	81 57 02 30 30
ADC AX, [BX]	;  memory address to 16 bit Register	13 07
ADC [BX+2], AX	;  16 bit Register to   memory address with offset	11 47 02
ADC AX, [BX+2]	;  Memory address with offset   to 16 bit Register	13 47 02
ADC AL, CL	;  8 bit Register to 8 bit Register	12 C1
ADC CL, AL	;  8 bit Register to 8 bit Register	10 C1
ADC AX, CX	;  16 bit Register to 16 bit Register	13 C1
ADC CX, AX	;  16 bit Register to 16 bit Register	11 C1

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Last Update 06/02/2023