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Merge pull request #14 from wwarthen/master

Resync
pull/49/head
b1ackmai1er 6 years ago
committed by GitHub
parent
commit
988bf98d4a
No known key found for this signature in database GPG Key ID: 4AEE18F83AFDEB23
  1. 54
      Source/HBIOS/hbios.asm
  2. 2
      Source/HBIOS/romldr.asm

54
Source/HBIOS/hbios.asm

@ -796,7 +796,7 @@ HB_START:
OUT0 (Z180_DCNTL),A
#IF ((MEMMGR == MM_Z180) | (MEMMGR == MM_N8))
; MMU SETUP
; Z180 MMU SETUP
LD A,$80
OUT0 (Z180_CBAR),A ; SETUP FOR 32K/32K BANK CONFIG
;#IFDEF ROMBOOT
@ -806,19 +806,7 @@ HB_START:
LD A,(RAMSIZE + RAMBIAS - 64) >> 2
OUT0 (Z180_CBR),A ; COMMON BASE = LAST (TOP) BANK
#ENDIF
#IF (Z180_CLKDIV >= 1)
; SET CLOCK DIVIDE TO 1 RESULTING IN FULL XTAL SPEED
LD A,$80
OUT0 (Z180_CCR),A
#ENDIF
#IF (Z180_CLKDIV >= 2)
; SET CPU MULTIPLIER TO 1 RESULTING IN XTAL * 2 SPEED
LD A,$80
OUT0 (Z180_CMR),A
#ENDIF
;
#ENDIF
;
#IF (MEMMGR == MM_Z2)
@ -1004,6 +992,44 @@ HB_CPU1:
LD A,L
LD (HB_CPUTYPE),A
;
#IF (CPUFAM == CPU_Z180)
;
; AT BOOT, Z180 PHI IS OSC / 2
LD C,(CPUOSC / 2) / 1000000
LD DE,(CPUOSC / 2) / 1000
;
#IF (Z180_CLKDIV >= 1)
LD A,L ; CPU TYPE
CP 2 ; Z8S180 REV K OR BETTER?
JR C,HB_CPU2 ; IF NOT, NOT POSSIBLE!
; SET CLOCK DIVIDE TO 1 RESULTING IN FULL XTAL SPEED
LD A,$80
OUT0 (Z180_CCR),A
; REFLECT SPEED CHANGE
LD C,CPUOSC / 1000000
LD DE,CPUOSC / 1000
#ENDIF
#IF (Z180_CLKDIV >= 2)
LD A,L ; CPU TYPE
CP 3 ; Z8S180 REV N OR BETTER?
JR C,HB_CPU2 ; IF NOT, NOT POSSIBLE!
; SET CPU MULTIPLIER TO 1 RESULTING IN XTAL * 2 SPEED
LD A,$80
OUT0 (Z180_CMR),A
; REFLECT SPEED CHANGE
LD C,(CPUOSC * 2) / 1000000
LD DE,(CPUOSC * 2) / 1000
#ENDIF
;
HB_CPU2:
; SAVE CPU SPEED IN CONFIG BLOCK
LD A,C
LD (CB_CPUMHZ),A
LD (CB_CPUKHZ),DE
;
#ENDIF
;
; PERFORM DYNAMIC CPU SPEED DERIVATION
;
CALL HB_CPUSPD ; CPU SPEED DETECTION

2
Source/HBIOS/romldr.asm

@ -737,7 +737,7 @@ PRTDRV1: ; HANDLE RAM/ROM
LD DE,DEVROM ; ASSUME ROM
JR Z,PRTDRV2 ; IF SO, PRINT IT
LD DE,DEVRAM ; OTHERWISE RAM
JR PRTDRV2 ; PRINT IT
JR PRTDRV2 ; PRINT IT
;
PRTDRV2: ; PRINT DEVICE
POP BC ; RECOVER UNIT

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