Common output format for single-chip microcomputers--Hex-80 (Hex 386)-EEWORLD

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Common output format for single-chip microcomputers--Hex-80 (Hex 386)

I have introduced Intel 32 bit Hex before, but not all .hex files belong to this format. The hex file output by Keil is another similar format Hex-80. Similar to the former, the format of the record is:
:LLAAAARRDDDD………DDDDCC
LL:           Length field-length segment: the number of bytes in the data segment (D)
AAAA:     Address field-address segment: the address of the first byte of the data segment
RR:         Record type-record type, 00 represents data, 01 represents the end of the record
DD..:      Data field-data segment
CC:         CheckSum field-checksum: the calculation method is to add up all the hexadecimal numbers represented by the letter pairs starting from the colon of this record and then divide the remainder by 256. Finally, the complement of the remainder is the verification byte cc.

Example: :011B50002272
LL = 0x01
AAAA = 0x1B50
RR=0x00
DD=0x22
CHECK SUM = ~((0x01+0x1B+0x50+0x22)&0xFF)+1 = 0x72

Unlike Intel 32, since Hex-80 is used for systems within the 64K address range, there is no base address setting instruction. If in Keil-51, the cross-BANK method exceeds 64K, the compiler will generate multiple HXX files to identify the BANK. For example:
test.h00
test.h01
test.h02
generates 64K code space from the perspective of each bank. For Common Bank, since it exists from the perspective of each Bank, it exists in several files. This requires programmers to pay attention.
In addition, it seems that the addresses of the Hex-80 files generated by Keil are not continuous. God knows why Keil does not regularize them.

Keywords：MCU Reference address：Common output format for single-chip microcomputers--Hex-80 (Hex 386)

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