cc65/libsrc/cbm610/kbhit.s

;
; Ullrich von Bassewitz, 2003-12-20
;
; int kbhit (void);
;

	.export		_kbhit

        .importzp       sysp0
	.import		return0, return1

	.include	"cbm610.inc"

.proc	_kbhit
        ldx     IndReg
        lda     #$0F
        sta     IndReg
        ldy     #$D1            ; Number of keys in kbd buffer
        lda     (sysp0),y
        stx     IndReg
	bne   	L1
	jmp	return0
L1:	jmp	return1
.endproc
This commit was generated by cvs2svn to compensate for changes in r2, which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-05-28 13:40:48 +00:00			`;`
Complete redesign of the CBM610 support. Use wrappers to call the kernal in bank 15 instead of implementing kernal functionality within the cc65 libs (eats performance but is much smaller and simpler). Improved startup/shutdown code allows a return to the system bank without calling the BASIC cold start vector. git-svn-id: svn://svn.cc65.org/cc65/trunk@2793 b7a2c559-68d2-44c3-8de9-860c34a00d81 2003-12-20 23:13:26 +00:00			`; Ullrich von Bassewitz, 2003-12-20`
This commit was generated by cvs2svn to compensate for changes in r2, which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-05-28 13:40:48 +00:00			`;`
			`; int kbhit (void);`
			`;`

			`.export _kbhit`
Complete redesign of the CBM610 support. Use wrappers to call the kernal in bank 15 instead of implementing kernal functionality within the cc65 libs (eats performance but is much smaller and simpler). Improved startup/shutdown code allows a return to the system bank without calling the BASIC cold start vector. git-svn-id: svn://svn.cc65.org/cc65/trunk@2793 b7a2c559-68d2-44c3-8de9-860c34a00d81 2003-12-20 23:13:26 +00:00
			`.importzp sysp0`
This commit was generated by cvs2svn to compensate for changes in r2, which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-05-28 13:40:48 +00:00			`.import return0, return1`

Combine the existing include files, move zp space out of crt0.s git-svn-id: svn://svn.cc65.org/cc65/trunk@1290 b7a2c559-68d2-44c3-8de9-860c34a00d81 2002-05-26 09:08:52 +00:00			`.include "cbm610.inc"`
This commit was generated by cvs2svn to compensate for changes in r2, which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-05-28 13:40:48 +00:00
			`.proc _kbhit`
Complete redesign of the CBM610 support. Use wrappers to call the kernal in bank 15 instead of implementing kernal functionality within the cc65 libs (eats performance but is much smaller and simpler). Improved startup/shutdown code allows a return to the system bank without calling the BASIC cold start vector. git-svn-id: svn://svn.cc65.org/cc65/trunk@2793 b7a2c559-68d2-44c3-8de9-860c34a00d81 2003-12-20 23:13:26 +00:00			`ldx IndReg`
			`lda #$0F`
			`sta IndReg`
			`ldy #$D1 ; Number of keys in kbd buffer`
			`lda (sysp0),y`
			`stx IndReg`
This commit was generated by cvs2svn to compensate for changes in r2, which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-05-28 13:40:48 +00:00			`bne L1`
			`jmp return0`
			`L1: jmp return1`
			`.endproc`