mirror of
https://github.com/Museum-of-Art-and-Digital-Entertainment/macross.git
synced 2024-11-23 17:33:44 +00:00
464 lines
10 KiB
Plaintext
464 lines
10 KiB
Plaintext
|
.TL
|
||
|
|
\s+9genmacros.m\s-9
|
||
|
|
.AU
|
||
|
|
a macro library for use with the 6502 version of Macross
|
||
|
|
.AI
|
||
|
|
Lucasfilm Ltd. Games Division
|
||
|
|
\\*(DY
|
||
|
|
.ds LH genmacros.m
|
||
|
|
.ds CH \\*(DY
|
||
|
|
.ds RH Reference Manual
|
||
|
|
.ds LF Lucasfilm Ltd. Proprietary Information
|
||
|
|
.ds CF - % -
|
||
|
|
.ds RF CONFIDENTIAL
|
||
|
|
.PP
|
||
|
|
These macros have been concocted by various people for the convenience and
|
||
|
|
amusement of those programming the 6502 using \fIMacross\fR. The will be
|
||
|
|
found in the file \fB/u1/gg/lib/6502/genmacros.m\fR. To use them, insert the
|
||
|
|
following statement somewhere near the beginning of your \fIMacross\fR
|
||
|
|
program:
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBinclude "/u1/gg/lib/6502/genmacros.m"\fR
|
||
|
|
|
||
|
|
.fi
|
||
|
|
Easy, no? What follows is a summary of the macros, grouped roughly by
|
||
|
|
category.
|
||
|
|
.sp 1
|
||
|
|
.SH
|
||
|
|
\s+2Macros to save and restore registers\s-2
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBphr\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Push all registers (i.e., the accumulator and the X and Y index registers)
|
||
|
|
onto the stack.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBplr\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Pull the registers (the accumulator and the X and Y index registers) off the
|
||
|
|
stack.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBphx\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Push the X register onto the stack.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBplx\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Pull the X register off of the stack.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBphy\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Push the Y register onto the stack.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBply\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Pull the Y register off of the stack.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBpushaddr \fIaddress\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Push \fIaddress\fR onto the stack to \fBrts\fR to.
|
||
|
|
.sp 1
|
||
|
|
.SH
|
||
|
|
\s+2Macros to move data around with\s-2
|
||
|
|
.PP
|
||
|
|
These macros provide an address mode independent method of moving bytes from
|
||
|
|
one place to another. The source and destination arguments of these macros
|
||
|
|
may, generally speaking, be in any address mode you desire (except, of course,
|
||
|
|
that the destination can't be immediate mode!).
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBmovm \fIn\fB, \fIdest\fB, \fIsrc\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Move multiple \(em move \fIn\fR bytes from \fIsrc\fR to \fIdest\fR. The bytes
|
||
|
|
are moved using the accumulator as an intermediary.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBmovmx \fIn\fB, \fIdest\fB, \fIsrc\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Move multiple \(em move \fIn\fR bytes from \fIsrc\fR to \fIdest\fR. The bytes
|
||
|
|
are moved using the X register as an intermediary.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBmovmy \fIn\fB, \fIdest\fB, \fIsrc\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Move multiple \(em move \fIn\fR bytes from \fIsrc\fR to \fIdest\fR. The bytes
|
||
|
|
are moved using the Y register as an intermediary.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBmv2m \fIn\fB, \fIdest1\fB, \fIdest2\fB, \fIsrc\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Move multiple to two destinations \(em move \fIn\fR bytes from \fIsrc\fR to
|
||
|
|
both \fIdest1\fR and \fIdest2\fR. The bytes are moved using the acuumulator
|
||
|
|
as an intermediary.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBmoveb \fIsrc\fB, \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Move byte \(em move one byte from \fIsrc\fR to \fIdest\fR via the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBmovew \fIsrc\fB, \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Move word \(em move one word from \fIsrc\fR to \fIdest\fR via the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBmovexb \fIsrc\fB, \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Move byte \(em move one byte from \fIsrc\fR to \fIdest\fR via the X register.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBmovexw \fIsrc\fB, \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Move word \(em move one word from \fIsrc\fR to \fIdest\fR via the X register.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBmoveyb \fIsrc\fB, \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Move byte \(em move one byte from \fIsrc\fR to \fIdest\fR via the Y register.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBmoveyw \fIsrc\fB, \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Move word \(em move one word from \fIsrc\fR to \fIdest\fR via the Y register.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBmovb \fIdest\fB, \fIsrc\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Move byte \(em move one byte from \fIsrc\fR to \fIdest\fR via the accumulator.
|
||
|
|
This is distinguished from \fBmoveb\fR in that it has the order of the
|
||
|
|
operands reversed. This confusing feature is provided for compatibility with
|
||
|
|
\fBa65\fR.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBmovw \fIdest\fB, \fIsrc\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Move word \(em move one word from \fIsrc\fR to \fIdest\fR via the accumulator.
|
||
|
|
This is distinguished from \fBmovew\fR in that it has the order of the
|
||
|
|
operands reversed. This confusing feature is provided for compatibility with
|
||
|
|
\fBa65\fR.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBclrm \fIn\fB, \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Clear multiple \(em clears (zeros) \fIn\fR bytes starting at \fIdest\fR.
|
||
|
|
Leaves a zero in the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBclrb \fIdest\fR
|
||
|
|
\fBclearb \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Clear byte \(em clears (zeros) one byte at \fIdest\fR. Leaves a zero in the
|
||
|
|
accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBclrw \fIdest\fR
|
||
|
|
\fBclearw \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Clear word \(em clears (zeros) one word at \fIdest\fR. Leaves a zero in the
|
||
|
|
accumulator.
|
||
|
|
.sp 1
|
||
|
|
.SH
|
||
|
|
\s+2Arithmetic macros\s-2
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBaddm \fIn\fB, \fIdest\fB, \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Add multiple \(em adds the \fIn\fR byte numbers found at \fIsrc1\fR and
|
||
|
|
\fIsrc2\fR and puts the result at \fIdest\fR. Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBaddb \fIdest\fB, \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Add byte \(em adds the one byte numbers \fIsrc1\fR and \fIsrc2\fR and puts the
|
||
|
|
one byte result in \fIdest\fR. Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBaddw \fIdest\fB, \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Add word \(em adds the two byte numbers \fIsrc1\fR and \fIsrc2\fR and puts the
|
||
|
|
two byte result in \fIdest\fR. Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBsubm \fIn\fB, \fIdest\fB, \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Subtract multiple \(em subtracts the \fIn\fR byte number found at \fIsrc2\fR
|
||
|
|
from the same sized number found at \fIsrc1\fR and puts the \fIn\fR byte
|
||
|
|
result in \fIdest\fR. Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBsubb \fIdest\fB, \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Subtract byte \(em subtracts the one byte number \fIsrc2\fR from \fIsrc1\fR
|
||
|
|
and puts the one byte result in \fIdest\fR. Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBsubw \fIdest\fB, \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Subtract word \(em subtracts the two byte numbers \fIsrc2\fR from \fIsrc1\fR
|
||
|
|
and puts the two byte result in \fIdest\fR. Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBcmpm \fIn\fB, \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Compare multiple \(em compares the two \fIn\fR byte numbers found at
|
||
|
|
\fIsrc1\fR and \fIsrc2\fR. Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBcmpb \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Compare byte \(em compares the one byte numbers \fIsrc1\fR and \fIsrc2\fR.
|
||
|
|
Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBcmpw \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Compare word \(em compares the two byte numbers \fIsrc1\fR and \fIsrc2\fR.
|
||
|
|
Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBnegm \fIn\fB, \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Negate multiple \(em negates the \fIn\fR byte number at \fIdest\fR. Clobbers
|
||
|
|
the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBnegb \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Negate byte \(em negates the one byte number at \fIdest\fR. Clobbers the
|
||
|
|
accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBnegw \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Negate word \(em negates the two byte number at \fIdest\fR. Clobbers the
|
||
|
|
accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBasrm \fIn\fB, \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Arithmetic shift right multiple \(em performs a rightward one-bit arithmetic
|
||
|
|
shift of the \fIn\fR byte number at \fIdest\fR. Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBasrb \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Arithmetic shift right byte \(em performs a rightward one-bit arithmetic
|
||
|
|
shift of the byte at \fIdest\fR. Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBasrw \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Arithmetic shift right word \(em performs a rightward one-bit arithmetic
|
||
|
|
shift of the word at \fIdest\fR. Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBaslm \fIn\fB, \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Arithmetic shift left multiple \(em performs a leftward one-bit arithmetic
|
||
|
|
shift of the \fIn\fR byte number at \fIdest\fR. Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBaslb \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Arithmetic shift left byte \(em performs a leftward one-bit arithmetic
|
||
|
|
shift of the byte at \fIdest\fR. Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBaslw \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Arithmetic shift left word \(em performs a leftward one-bit arithmetic
|
||
|
|
shift of the word at \fIdest\fR. Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBlsrm \fIn\fB, \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Logical shift right multiple \(em performs a rightward one-bit logical shift
|
||
|
|
of the \fIn\fR byte number at \fIdest\fR. Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBlsrb \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Logical shift right byte \(em performs a rightward one-bit logical shift of
|
||
|
|
the byte at \fIdest\fR. Clobbers the accumulator.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBlsrw \fIdest\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Logical shift right word \(em performs a rightward one-bit logical shift of
|
||
|
|
the word at \fIdest\fR. Clobbers the accumulator.
|
||
|
|
.SH
|
||
|
|
.sp 1
|
||
|
|
\s+2Flow-of-control macros\s-2
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBrepeat \fIn\fB { \fIcode\fB }\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Replicates the block of \fIMacross\fR statements \fIcode\fR \fIn\fR times.
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBloop \fIcounter\fB, \fIstart\fB, \fIend\fB { \fIcode\fB }\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Generic ``do-loop'' \(em generates 6502 code for a loop that initializes
|
||
|
|
\fIcounter\fR to \fIstart\fR, and then repeatedly executes \fIcode\fR,
|
||
|
|
incrementing \fIcounter\fR until it reaches the value \fIend\fR.
|
||
|
|
\fICounter\fR may be ``\fBx\fR'' to denote the X index register, ``\fBy\fR''
|
||
|
|
to denote the Y index register, or a memory location. \fIStart\fR and
|
||
|
|
\fIend\fR may be referenced in any 6502 address mode.
|
||
|
|
.SH
|
||
|
|
.sp 1
|
||
|
|
\s+2Miscellaneous macros\s-2
|
||
|
|
.nf
|
||
|
|
|
||
|
|
\fBmbyte \fIn\fR
|
||
|
|
.fi
|
||
|
|
.IP
|
||
|
|
Generates \fIn\fR zero data bytes.
|
||
|
|
.bp
|
||
|
|
.CD
|
||
|
|
\s+5\fBAppendix \*- Summary of the macros\fR\s-5
|
||
|
|
.DE
|
||
|
|
.LP
|
||
|
|
.nf
|
||
|
|
\fBaddb \fIdest\fB, \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
\fBaddm \fIn\fB, \fIdest\fB, \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
\fBaddw \fIdest\fB, \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
\fBaslb \fIdest\fR
|
||
|
|
\fBaslm \fIn\fB, \fIdest\fR
|
||
|
|
\fBaslw \fIdest\fR
|
||
|
|
\fBasrb \fIdest\fR
|
||
|
|
\fBasrm \fIn\fB, \fIdest\fR
|
||
|
|
\fBasrw \fIdest\fR
|
||
|
|
\fBclearb \fIdest\fR
|
||
|
|
\fBclearw \fIdest\fR
|
||
|
|
\fBclrb \fIdest\fR
|
||
|
|
\fBclrm \fIn\fB, \fIdest\fR
|
||
|
|
\fBclrw \fIdest\fR
|
||
|
|
\fBcmpb \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
\fBcmpm \fIn\fB, \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
\fBcmpw \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
\fBloop \fIcounter\fB, \fIstart\fB, \fIend\fB, \fIcode\fR
|
||
|
|
\fBlsrb \fIdest\fR
|
||
|
|
\fBlsrm \fIn\fB, \fIdest\fR
|
||
|
|
\fBlsrw \fIdest\fR
|
||
|
|
\fBmbyte \fIn\fR
|
||
|
|
\fBmovb \fIdest\fB, \fIsrc\fR
|
||
|
|
\fBmoveb \fIsrc\fB, \fIdest\fR
|
||
|
|
\fBmovew \fIdest\fB, \fIsrc\fR
|
||
|
|
\fBmovexb \fIsrc\fB, \fIdest\fR
|
||
|
|
\fBmovexw \fIsrc\fB, \fIdest\fR
|
||
|
|
\fBmoveyb \fIsrc\fB, \fIdest\fR
|
||
|
|
\fBmoveyw \fIsrc\fB, \fIdest\fR
|
||
|
|
\fBmovm \fIn\fB, \fIdest\fB, \fIsrc\fR
|
||
|
|
\fBmovmx \fIn\fB, \fIdest\fB, \fIsrc\fR
|
||
|
|
\fBmovmy \fIn\fB, \fIdest\fB, \fIsrc\fR
|
||
|
|
\fBmovw \fIsrc\fB, \fIdest\fR
|
||
|
|
\fBmv2m \fIn\fB, \fIdest1\fB, \fIdest2\fB, \fIsrc\fR
|
||
|
|
\fBnegb \fIdest\fR
|
||
|
|
\fBnegm \fIn\fB, \fIdest\fR
|
||
|
|
\fBnegw \fIdest\fR
|
||
|
|
\fBphr\fR
|
||
|
|
\fBphx\fR
|
||
|
|
\fBphy\fR
|
||
|
|
\fBplr\fR
|
||
|
|
\fBplx\fR
|
||
|
|
\fBply\fR
|
||
|
|
\fBpushaddr \fIaddress\fR
|
||
|
|
\fBrepeat \fIn\fB, \fIcode\fR
|
||
|
|
\fBsubb \fIdest\fB, \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
\fBsubm \fIn\fB, \fIdest\fB, \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
\fBsubw \fIdest\fB, \fIsrc1\fB, \fIsrc2\fR
|
||
|
|
.fi
|