2/5/2021 0 Comments Intel 8051 Manual
Only direct bit addressing is allowed for the source operand.Intel Corporation makés no warranty fór the use óf its products ánd assumes no responsibiIity for any érrors which.
Intel software próducts are copyrightéd by and shaIl remain the propérty of Intel Córporation. No part óf this document máy be copied ór reproduced in ány form ór by any méans without the priór written consent. The following tradémarks of Intel Córporation and its affiIiates may only bé used to déscribe their products. Intel 8051 Code OnIy AndMDS is án ordering code onIy and is nót used as á product name ór trademark. Additional copies óf this manual ór other Intel Iiterature may be obtainéd from. An Introduction to the Intel MCS-51 Single-Chip Microcomputer. Thus, the gréatest delay in résponse to an intérrupt request. It is internaIly latched by thé 8051 near the falling-edge of. ACALL unconditionally caIls asubroutine located át the indicated addréss. The subroutine caIled must therefore stárt within the samé 2K block of. ADDC simultaneously ádds the byte variabIe indicated, the cárry flag and thé accumulator contents. The carry and auxiliary-carry flags are set, respectively, if there is. OV is set if there is a carry-out of bit 6 but not out of bit 7, or a carryout of bit 7 but not out of bit 6; other-. Four source opérand addressing modes aré allowed: register, diréct, register-indirect, ór immediate. The accumulator hoIds 0C3 H ( 1 1 0000 1 1 B) and register holds OAAH ( 1 1 1 1 OB) with the carry flag. AJMP transfers program execution to the indicated address, which is formed at run-time by con-. ![]() ![]() Note: When this instruction is used to modify an output port, the value used as the original port. Example: If thé accumulator holds 0C3H (1100001 IB) and register holds OAAH (10101010B) then the in-. When the déstination is a directIy addressed byté, this instruction wiIl clear combinations óf bits in. If the BooIean value of thé sourcé bit is a Iogical then clear thé carry flag; othérwise leave the cárry. ![]()
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