mirror of
https://github.com/byteworksinc/ORCA-C.git
synced 2024-11-16 13:09:16 +00:00
5b26b8cc5b
This allows the code to be displayed properly on GitHub and in modern text editors, which typically do not support the irregularly-spaced tab stops used for ORCA/M code. It also avoids any possibility of problems building the code if the SysTabs file is missing or has been customized with non-standard tab stops.
117 lines
3.3 KiB
NASM
117 lines
3.3 KiB
NASM
mcopy cgc.macros
|
|
****************************************************************
|
|
*
|
|
* CnvSX - Convert floating point to SANE extended
|
|
*
|
|
* Inputs:
|
|
* rec - pointer to a record
|
|
*
|
|
****************************************************************
|
|
*
|
|
CnvSX start cg
|
|
rec equ 4 record containing values
|
|
rec_real equ 0 disp to real value
|
|
rec_ext equ 8 disp to extended (SANE) value
|
|
|
|
tsc set up DP
|
|
phd
|
|
tcd
|
|
ph4 rec push addr of real number
|
|
clc push addr of SANE number
|
|
lda rec
|
|
adc #rec_ext
|
|
tax
|
|
lda rec+2
|
|
adc #0
|
|
pha
|
|
phx
|
|
fd2x convert TOS to extended
|
|
move4 0,4 return
|
|
pld
|
|
pla
|
|
pla
|
|
rtl
|
|
end
|
|
|
|
****************************************************************
|
|
*
|
|
* CnvSC - Convert floating point to SANE comp
|
|
*
|
|
* Inputs:
|
|
* rec - pointer to a record
|
|
*
|
|
****************************************************************
|
|
*
|
|
CnvSC start cg
|
|
rec equ 4 record containing values
|
|
rec_real equ 0 disp to real value
|
|
rec_ext equ 8 disp to extended (SANE) value
|
|
rec_cmp equ 18 disp to comp (SANE) value
|
|
|
|
tsc set up DP
|
|
phd
|
|
tcd
|
|
ph4 rec push addr of real number
|
|
clc push addr of SANE number
|
|
lda rec
|
|
adc #rec_ext
|
|
tax
|
|
lda rec+2
|
|
adc #0
|
|
pha
|
|
phx
|
|
fd2x convert TOS to extended
|
|
clc push addr of SANE number
|
|
lda rec
|
|
adc #rec_ext
|
|
tax
|
|
lda rec+2
|
|
adc #0
|
|
pha
|
|
phx
|
|
clc push addr of COMP number
|
|
lda rec
|
|
adc #rec_cmp
|
|
tax
|
|
lda rec+2
|
|
adc #0
|
|
pha
|
|
phx
|
|
fx2c convert TOS to extended
|
|
move4 0,4 return
|
|
pld
|
|
pla
|
|
pla
|
|
rtl
|
|
end
|
|
|
|
datachk off
|
|
****************************************************************
|
|
*
|
|
* InitLabels - initialize the labels array
|
|
*
|
|
* Outputs:
|
|
* labelTab - initialized
|
|
* intLabel - initialized
|
|
*
|
|
****************************************************************
|
|
*
|
|
InitLabels start cg
|
|
maxLabel equ 3200
|
|
|
|
! with labelTab[0] do begin
|
|
lda #-1 val := -1;
|
|
sta labelTab+6
|
|
sta labelTab+8
|
|
stz labelTab defined := false;
|
|
stz labelTab+2 chain := nil;
|
|
stz labelTab+4
|
|
! end; {with}
|
|
ldx #labelTab for i := 1 to maxLabel do
|
|
ldy #labelTab+10 labelTab[i] := labelTab[0];
|
|
lda #maxLabel*10-1
|
|
mvn labelTab,labelTab
|
|
stz intLabel intLabel := 0;
|
|
rtl
|
|
end
|