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Deja Vu #06
30 сентября 1998 |
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CODING - On obechatke Listing of stack (5 rooms).
(C) RLA / CRG
__________________________________________
For technical reasons in the article "Stack Usage" (DEJA_VU
# 05) were admitted to some inaccuracies.
In fact Listings handlers look like this:
INT1 DI
LD (TOSP +1), SP
LD SP, INT1
PUSH HL
PUSH DE
PUSH BC
PUSH AF
PUSH IX
EXX
EX AF, AF
PUSH HL
PUSH DE
PUSH BC
PUSH AF
PUSH IY
LD HL, (TOSP +1)
LD DE, # 4000
AND A
SBC HL, DE
LD A, # C9; RET
JR NZ, OK
LD A, # C3; JP
OK LD (TO_RET), A
...
POP IY
POP AF
POP BC
POP DE
POP HL
EXX
EX AF, AF
POP IX
POP AF
POP BC
POP DE
POP HL
EI
TOSP LD SP, 0
TO_RET DB 0
DW ADR1
INT2 DI
EX (SP), HL
LD (_JP +1), HL
POP HL
LD (TOSP2 +1), SP
LD SP, INT2
PUSH HL
PUSH DE
PUSH BC
PUSH AF
PUSH IX
EXX
EX AF, AF
PUSH HL
PUSH DE
PUSH BC
PUSH AF
PUSH IY
...
POP IY
POP AF
POP BC
POP DE
POP HL
EXX
EX AF, AF
POP IX
POP AF
POP BC
POP DE
POP HL
TOSP2 LD SP, 0
EI
_JP JP 0
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