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33A9: THE 'TEST 5-SPACES' SUBROUTINE
Used by the routines at STK_ST_0, duplicate and stk_data.
This subroutine tests whether there is sufficient room in memory for another 5-byte floating-point number to be added to the calculator stack.
Input
Output
BC +0005
TEST_5_SP 33A9 PUSH DE Save DE briefly.
33AA PUSH HL Save HL briefly.
33AB LD BC,$0005 Specify the test is for 5 bytes.
33AE CALL TEST_ROOM Make the test.
33B1 POP HL Restore HL.
33B2 POP DE Restore DE.
33B3 RET Finished.
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