I need explantation why R28 is 0x77 and R29 is 0x03

.EQU var1 = 14

.DEF count = r7

.ORG 0x0000

RJMP init

.ORG 0x0046

init:

CLR count

LDI r20, var1

LDI r21, 5

LDI YH, HIGH(resultA)

LDI YL, LOW(resultA)

loop:

CP r20, r21

BRLT finish

SUB r20, r21

INC count

RJMP loop

finish:

ST Y+, count

ST Y+, r20

done:

RJMP done

.DSEG

.ORG 0x0375

resultA: .BYTE 1

resultB: .BYTE 1