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ZCPR33
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HSH33PAT.LBR
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HSH33PAT.Z80
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Text File
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2000-06-30
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1KB
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31 lines
; This is a patch for HSH15.COM to make it NOT skip leading spaces in the
; user-entered command lines. This is desirable under ZCPR version 3.3 because
; a leading space is a signal that the command should be sent directly to the
; extended command processor without searching for the COM file along the path.
; The patch consists of replacing a "JP Z,JMPADDR" which only continues if the
; character checked was not a space or tab to an unconditional jump.
;
; The patch is applied by assembling this file to a HEX file and overlaying the
; result on HSH15.COM using MLOAD: "MLOAD HSHNEW.COM=HSH15.COM,HSH33PAT".
;
; Jay Sage, April 21, 1987
patchaddr equ 0a02h ; Address where instruction has to
; ..be changed
versaddr equ 02a9h ; Address where version message can
; ..be patched
org versaddr
defb '1.5A (4/21/87)'
org patchaddr
defb 0c3h ; Unconditional jump opcode
end