Small optimizations related to 8/16-bit register switching.

This commit is contained in:
Stephen Heumann 2024-03-22 21:10:33 -05:00
parent 0e519e1e58
commit d9e26d4467
2 changed files with 26 additions and 28 deletions

View File

@ -107,9 +107,8 @@ lb2 asl A get the signal handler address
tay
lda >subABRT-2,X
bmi lb3 skip if it is SIG_DFL or SIG_IGN
short M set up the call address
sta >jsl+3
long M
xba set up the call address
sta >jsl+2
tya
sta >jsl+1
ph2 <sig call the user signal handler

View File

@ -253,9 +253,9 @@ lb4 blt less memory differs - set the result
less ldx #-1
lb5 long M
lda rtl remove the parameters from the stack
lb5 lda rtl remove the parameters from the stack
sta len+1
long M
lda rtl+1
sta len+2
pld
@ -436,11 +436,11 @@ lb10 lda [p2],Y
dex
bne lb9
lb11 long M
ply get the original source pointer
lb11 ply get the original source pointer
plx
lda rtl remove the parameters from the stack
sta len+1
long M
lda rtl+1
sta len+2
pld
@ -629,9 +629,9 @@ lb3 lda [s2],Y
inc s2+2
bra lb3
lb4 long M return to the caller
lda rtl
lb4 lda rtl return to the caller
sta s2+1
long M
lda rtl+1
sta s2+2
ldx rval+2
@ -751,9 +751,9 @@ less ldx #-1 It wasn't, so *s1 < *s2
lb3 blt less the strings differ - set the result
ldx #1
lb4 long M
lda rtl remove the parameters from the stack
lb4 lda rtl remove the parameters from the stack
sta s2+1
long M
lda rtl+1
sta s2+2
pld
@ -830,9 +830,9 @@ lb1 lda [s2],Y
inc s2+2
bra lb1
lb2 long M return to the caller
lda rtl
lb2 lda rtl return to the caller
sta s2+1
long M
lda rtl+1
sta s2+2
ldx rval+2
@ -971,10 +971,10 @@ lb1 lda [str],Y
inc str+2
bra lb1
lb2 long M
pld remove str from the stack
lda 2,S
sta 6,S
lb2 pld remove str from the stack
lda 3,S
sta 7,S
long M
pla
sta 3,S
pla
@ -1203,14 +1203,13 @@ lb1 lda [s],Y
short M
bra lb1
lb2 long I,M no match found -> return NULL
ldx #0
lb2 ldx #0 no match found -> return NULL
txy
long I,M
bra lb4
lb3 long I,M increment s by Y and load the value
tya
and #$00FF
clc
adc s
tay
@ -1266,10 +1265,10 @@ lb1 lda [str],Y
lb2 ldy #-1 no match found -> return -1
lb3 long M
pld remove parameters from the stack
lda 2,S
sta 8,S
lb3 pld remove parameters from the stack
lda 3,S
sta 9,S
long M
pla
sta 5,S
pla
@ -1377,10 +1376,10 @@ lb2 cmp #0
iny
bpl lb1
lb3 long M
pld remove parameters from the stack
lda 2,S
sta 8,S
lb3 pld remove parameters from the stack
lda 3,S
sta 9,S
long M
pla
sta 5,S
pla